cement vertical roller mill for sale

The vertical mill is a kind of mill equipment, widely used in cement chemicals, coal, electricity and other fields. With the advantages of small footprint, low power consumption, small noise, simple process, layout compact, combined with crushing, drying, grinding, classifying as a whole, the vertical roller mill has become the preferred equipment for milling cement raw meal in the modern cement production factories.
The world's first vertical mill was developed by Loesche Company from Germany, who had the mature design already in the year of 1925. At present, the largest vertical mill - LM63．4, has a capacity of 840 TPH, with the millstone diameter of 6.3mm, the power of 5600 KW and is equiped with 4 rollers.

The current abroad manufacturers of vertical mills mainly include Loesehe Company, Fuller Company, UBE Company (LM series of vertical mill), FLS Company (Atox Mill), KHD Company (RM mill) and Pfeiffer Company (MPS series of vertical mill). The domestic manufacturers of vertical mills have a relatively small amount, whose R&D and production are still in the developing level. However, compared with international brands, the domestic brands have some unique characteristics, which are better suited to the domestic market.

The SBM vertical roller mill, capable of grinding and drying materials simultaneously, is our key product: Introduced in 2004, the SBM technology has been continuously improved and optimi-sed to provide superior grinding equipment to our clients. Over 2,00 SBM mills are currently used worldwide in diverse applications, delivering efficient and reliable performance.

In the cement sector, the initial main range of application, namely the processing of coal and raw material, was expanded to include cement grinding. The first SBM vertical roller mill for cement grinding went into operation at Hanover-based Teutonia Zement in 2007, and GEBR. PFEIFFER AG have since established themselves as expert suppliers of cement grinding equipment.

Moreover, SBM mills are also to be found in power plants, an exclusive licence having been granted to Hitachi Babcock, entitling them to manufacture SBM coal mills for coal-fired power stations.

Besides the SBM vertical roller mill, Gebr. SBM AG’s product range encompasses special machines for the classification and drying of mineral bulk materials and for the preparation of lime and gypsum.

In fact, the options have their pros and cons, there is not a perfect solution, the key is when the owners to choose the goal must be clear. Select the program to be considered advanced and mature, but also consider the quality of employees can fit. Such as the one to save tons of cement from the lower operating costs, power consumption, the choice of the final vertical roller mill grinding system is certainly the most advanced. On the current level of technology, consider the grinding station has a running cost advantages and to ensure the quality of cement, endorsed grinding station should be closed-circuit grinding roller press + form grinding process.

concrete crushers

Concrete is a construction material composed of cement (commonly Portland cement) and other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate made of gravels or crushed rocks such as limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures.

Hardened concrete that has been processed for reuse, usually as aggregates. Concrete recycling is an increasingly common method of disposing of concrete structures. Concrete crusher debris was once routinely shipped to landfills for disposal, but recycling is increasing due to improved environmental awareness, governmental laws, and economic benefits.

Reinforced concrete contains rebar and other metallic reinforcements, which are removed with magnets and recycled elsewhere. The remaining aggregate chunks are sorted by size. Larger chunks may go through the crusher again. Smaller pieces of concrete are used as gravel for new construction projects. Aggregate base gravel is laid down as the lowest layer in a road, with fresh concrete or asphalt placed over it. Crushed recycled concrete can sometimes be used as the dry aggregate for brand new concrete if it is free of contaminants, though the use of recycled concrete limits strength and is not allowed in many jurisdictions.

Concrete crusher manufacturer SBM machinery, which is a professional manufacturer of concrete crushing equipment, provides concrete crushing equipment, concrete crushing machine and concrete crushing plant for sale, hire, rental. If you have concrete need to be crushed or recycling, you can buy or hire our concrete crushing plant.

limestone crusher and limestone crushing process

Limestone crusher used in stone quarry

In stone quarry, there are several types of stone crushers that can be used in limestone crushing plant.

Limestone jaw crusher is the widely used primary limestone crusher machine, it is mainly used in primary crushing process. Fixed jaw plate, and movable jaw plate are wearable parts. Different jaw crushers have different output, the usual capacity is 1-5 t/p, 30-50tph, 50-80tph, 80-120tph, 120-200tph, 200-300tph, 300-400tph, 400-500tph.

Impact crusher is also common stone crushing machine used in limestone quarry. It has the functions of crushing and shaping, can make very good cubic shape. The stone materials are mainly used for road, highway, water conservancy, airport, civil construction etc. The market prices of stones made by impact crusher is higher than that by fineness jaw crusher or compound cone crusher; the quick wear parts cost of impact crusher is also high for high hardness stones.

Limestone mobile crusher is the complete crushing unit, includes feeding, crushing, screening process. for example, limestone mobile jaw crusher includes vibrating feeder, primary jaw crusher, vibrating screen, and belt conveyor. There are other models, such as limestone mobile impact crusher, limestone mobile cone crusher, crawler type mobile crusher.

Hammer crusher for limestone crushing: Hammer crusher is the fine limestone crushing machine. In limestone processing plant, it is main limestone quarry machine used to crush limestone into powder.

Limestone crushing and grinding process:

Limestone is important buiding materials, and raw materials for cement production. We must crush limestone into suitable size through limestone crushing process or grind them into sand or powder by limestone grinding machine in limestone processing plant.

Limestone crushing process need limestone crusher equipment. In this process, we usually use jaw crusher, cone crusher, mobile crusher such as portable mobile crusher, crawler type mobile crusher. These machines are used to crush limestones into smaller particles. According to the different products, we choose the different crushing process. Usually limestone crushing plant includes primary crushing process and secondary crushing process. If the product is sand, the limestone particles must do stone shapping through sand making machine. If you need the stone powder, using limestone grinding machines to grind these crushed limestone particles into powder. In this grinding process, hammer mill, ball mill, vertical mill are usually used.

Limestone crushing plant

In cement plant, limestone is the important raw material to make cement. It goes through crushing, grinding process, then make into powder.

In casting sand production line, limestone is crushed into the particles with 58 - 57 mesh. This limestone sand is better than the performance of quartz sand in manufacturing of machinery.

SBM is a mining machine manufacturer in China, and provides all kinds of stone crushers and grinding mills, such as aggregate crusher (limestone crusher, marble crusher, granite crusher, gravel crusher), ore crusher, coal crusher, cement mill, concrete crusher, and gold mining equipments. We can also design the special complete crushing plant according to the requirements of customers. Now, our products have exported to more than 130 countries, such as USA, UAE, Germany, Indonesia, India, Vietnam, Philippines, Rusia, Canana, South Africa, Zimbabwe, Russia, Ukraine, Japan, Poland, France, Brazil, Mexico.

Cement mill,Cement crusher,Cement grinding mill,Cement Ball Mill,Vertical Cement Mill

Cement mill is kind of cement grinding mill.Cement crushers are widely used in cement mining.Cement mill includes many kinds of grinding mill,such as cement ball mill and vertical cement mill. So is cement crusher. Cement mill, cement crushing, and cement conveyor, cement screen.

Cement in powder form can be changed from plasticity paste to hard stone-like body and can become a total cemented granular materials through physical and chemical processes after being mixed with water. So cement is a good mineral binder. Cement can be not only hardened in the air, but also better hardened in the water in which it will maintain and develop strength. So cement is kind of cementitious material which will be of stronger hardness in water. Cement mil is used for cement grinding. Cement crusher is applied for cement crushing. In cement mining, you need to choose suitable cement grinding mill and cement crusher.

In cement production process, cement crusher is very important since most of the raw materials will have to be crushed before being used to process cement, such as limestone, clay, iron ore and coal, etc. Limestone is the largest amount of raw material during cement production. After limestone mining, limestone is generally of large size and high hardness. Therefore the limestone crushing is very important in the whole material crushing. Usually we choose jaw crusher for limestone crushing since jaw crusher is of easy principle, convenient maintainence and low cost. However, if the whole cement mining scale is of large size, we usually choose cone crusher or impact crusher to assit jaw crusher and to be secondary or tertiary cement crusher machine. Also cement conveyor is used to transport these materials to next procedure, such as vibrating cement screen to screen out required fineness. In some production sites, we use a whole mobile crusher to complete the whole cement crushing and screening production since the mobile crusher is equipped with jaw crusher, impact crusher or cone crusher, vibrating feeder,vibrating screen,etc.

In the cement grinding, grinding mill will be used to grind the cement clinker to an appropriate size to increase the size of its hydration, accelerate hydration rate so that it can meet the cement paste setting, hardening requirements. There are many kinds of cement grinding mill, such as ball mill, high pressure suspension grinding mill,coarse powder grinding mill, raymond mill, vertical mill, etc. In the exact production site, we can choose suitable cement grinding mill according to the exact requirement and material information. This procedure is almost the last process of cement production. So cement grinding will directly influence the products quality.

Traditional cement mill also named as cement ball mill. Ball mill is an efficient tool for grinding many materials into fine powder. The Ball Mill is used to grind many kinds of mine and other materials, or beneficiation. It is widely used in building material, chemical industry, etc. There are two ways of grinding: the dry process and the wet process. It can be divided into tabular type and flowing type according to different forms of discharging material.

gold mining equipemnt design for your mining business

Gold mining projects are distributed almost over the world,especially in Australia,China,California,south Africa,Canada,Ghana,Alaska,Arizona,Georgia,Peru,BC,Philippines,Tanzania,UK,Michigan,Mongolia,Utah,the USA,Mali,New Zealand,NZ,Nevada,Colordo,Oregon,GA,India,Adaho,Malaysia,Russia etc.In the places listed above,gold mines are easy to find while gold ore crushed slags were once everywhere after gold ore was crushed by gold mining machines such as gold ore crushers , gold ore vibrating screen,gold mining plant or other equipment that can be used in the gold mining processing.
Gold Ore Mining Products

To design a perfect gold ore mining plant line, crushers above is usually used as crushing equipment as well as miners also need vibrating feeders ,vibrating screen and belt conveyors to form a line fit for individual gold mining conditions.
Simple Gold Mining Plant line with SBM gold mining equipemnt

gold ore crushing plant
This is a simple gold ore crushing plant line for you to consider about it.
In this gold mining plant line , Impact stone crusher and Jaw stone crusher are used for primary crushing machinery because of its high capacity of feeding stones. Spring cone crusher is used for the secondory crusher for it is good at breaking a liittle big gold ore into smaller rocks which can be crushed into as small as sand..What links primary gold ore crusher and secondory gold ore plant are belt conveyors. Also , vibrating feeders and vibrating screen are necessary for the design of gold ore stone crushing plant.

Any uncovered quantity of gold is a manifold higher in value than the gold that has been dug out since the beginning of gold mining. In fact it is stated that only 10 percent of gold have been discovered so far. Within this backdrop, many new gold prospectors use up-to-date gold mining equipment and methods to unearth gold and get maximum results for their effort. Gold prospectors know by experience that using new gold mining equipment is the way to find hidden gold deposits with minimum effort.

Gold mining equipment include gold metal detectors, sluice boxes, gold panning kits, gold dredges, underwater metal detectors and gold mining tools. Unlike traditional gold mining equipment, which limits the possibility of finding a large quantity of gold, electronic gold metal detectors greatly help gold miners to increase their productions. Electronic gold metal detectors are powerful enough to find even meager quantities of gold in very deep locations. They also easily detect other metals from gold minimizing time wastages. Two special electronic gold detectors are Minelab Eureka and Bounty Hunger Landranger.

Many individual gold prospectors use sluice boxes. This is an easier and effective method than panning, as they wash a great amount of sand within a short span of time. Normally gold miners use wooden sluice boxes. Although wooden sluice boxes are heavy, they are fine for the task. Large heavy sluice boxes have to be built on the gold mining site, as they cannot be shifted easily to another place. They can rip off a large portion of river bottom. Gold dredgers, on the other hand, are very expensive. Therefore, they are not affordable for individual gold prospectors but are only suitable for large companies.

Finding gold in areas otherwise unreachable, the underwater metal detector comes in handy to help prospectors in locating gold. One such under water metal detector is Viper Trident which is a remarkably effective tool to locate gold. Gold prospectors are able to achieve their goals in reaching for gold in deep out of the way places which till now without the use of these detectors were incapable to explore in the earlier prospecting. These underwater metal detectors have its uses on land as well in many other types of work. Gold prospectors with inadequate experience and knowledge of locating deeply situated gold can effectively put the underwater metal detectors to use with no particular instructions, as this piece of equipment is straightforward and easy to use.

Gold mining equipment did not change much until the last decade. All the same, there are many new types of equipment now, such as underwater metal detectors, suction dredgers etc., that help increase the production or gold manifold. Gold mining equipment are made to withstand tough conditions and they can last long, as gold prospectors are most often working in very far distant locations, away from easy access to getting replacements in the event the equipment breaks. Before adding new equipment, gold prospectors should educate themselves on the subject to find effective gold mining equipment.

concrete crushing equipment,concrete crusher plant

Concrete is a composite construction material composed of cement and other cement materials such as fly ash and slag cement, aggregate, water, and chemical admixtures. And there are many waste garbage of concrete have been produced every day. So we need make concrete crushing.

Waste concrete is crushed when reused as a backfilling material or roadway subgrade material. In the process, cement particles that measure 200 µm or less are generated in addition to large particles that are reused. The cement particles, of which a major component is cement hydrate, are discarded because the strength is too low for reuse as a concrete material. So you need the crushing machine to reuse the wast concrete.

Concrete Crushing Machine

We have introduced concrete crushing plant, where you will need concrete crushing equipment. Here we will introduce you the exact concrete crusher, concrete grinding machine and mobile concrete crusher. For more info about SBM concrete crushing equipment, please contact us. You are most welcome.

Concrete crusher equipment

For concrete crushing equipment , you can choose jaw crusher, spring cone crusher,symons cone crusher, VSI5X impact crusher, etc. According to your capacity, choose exact concrete crusher model.

Mobile concrete crushing equipment: there are many types of mobile concrete crushers, such as mobile jaw crusher, mobile cone crusher, mobile impact crusher, crawler type hydraulic-driven track mobile crusher plant, etc. The mobile concrete crushing equipment is of lots advantages which are important for some mining sites. If you want to purchase mobile crusher for concrete crushing or other materials crushing, you can contact us. We will provide you the best suitable equipment along with perfect services.

Concrete Crushing Machinery

SBM is a professional mining crushers manufacturer and industry grinding mills manufacturer. SBM company has independent import-export right with a perfect international market department to deal with oversea trade. It has a professional pre-sale, in-sale and after-sale service faculty to provide considerate and all-around-way service to the customers.

SBM supply the the best crushing equipment,concrete crushing,mining equipment. Our service : We spare no efforts to perfect our pre-sale, in-sale and after-sale services and focus on every detail from the design stage until the final installation.We adhere to the principle that customer always comes first. Our business is successful only when customers obtain satisfaction from our crushing/ milling products and service. And we can speak aloud "SBM crushing equipment stand the test of time !". We stand here in crushing equipment, concrete crushing, mining equipment area 25 years servicing for you for every time. Stone Crushing and Screening Plants | Sand Making and Washing Plants | Grinding Mill Production Line

Rock Crushing Plant And Vibrating Screen

vibrating screen moves round with multi-layers and high efficiency. The vibrating screen can screen the materials into multiple levels products according to the different material grain size.

Working Principle Of Vibrating Screen:

The vibrating screen is to drive vibrator through V-belt under the power of ordinary motor, so that the screen body along the vibrating power direction to make a cyclical reciprocating, the material in the screen surface to make round movement, so as to make the materials sieved.

Features Of The Vibrating Screen:

1. The materials drops down the long line, and the machine bears the features of different specifications.
2. Taking the partial block as the exciter, which is strong.
3. Screen cross-beam and box are connected by strong bolt, which is with simple structure, and convenient maintainance.
4. With small amplitude, high frequency, large-inclination structure, high efficiency, large capacity, long service life, low power consumption and noise.

Rock Crushing Plant

In rock crushing plant, jaw crusher is used as primary crusher machine, when big rocks are crushed smaller after jaw crusher, they are transferred to impact crusher or cone crusher for secondary crushing, then go through the rock shapping machine for getting cubic size. Using screening machine to screen out the suitable rock aggregate, while the unsuitable rocks return to the crusher machine fro re-crushing.
Accordint to the capacity, we design the different rock crushing plant:
40 -60 TPH:Hopper + vibrating feeder + jaw crusher(PE-500×750) + impact crusher (PF-1010) or cone crusher (HPC 160) + vibrating screen
80 - 120 TPH:Hopper + vibrating feeder + jaw crusher(PE-600×900) + impact crusher (PF-1214) or cone crusher (CS 4 1/4) + vibrating screen 
150 - 200 TPH:Hopper + vibrating feeder + jaw crusher(PE-750×1060) + impact crusher (PF-1315) or cone crusher (HPC 220) + vibrating screen
250 - 300 TPH:Hopper + vibrating feeder + jaw crusher(PE-500×750) + two impact crushers (PF-11315) or cone crusher (HPC 220) + vibrating screen

General natural rocks is big, it is not suitable for construction building. So we must crush these rocks into small size or change the form of it in rock crushing plant. rock crushers is the machine that is used to reduce the size, or change the form of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated. Usually we crush rocks into 10mm, 12mm, 19mm, 25mm, 50mm, 100mm.

Our Sevice:

1．Pre-sale services: Act as a good adviser and assistant of clients; enable them to get rich and generous returns on their investments.
2．Services provided during the sale: Respect our clients; present the clients with ease, relaxation and a surprise; devote ourselves to improve the total value of our clients.
3. After-sale services: Improve the added value of our products, and let the clients free from the using troubles.

Bauxite Crusher is widely used in bauxite crushing plant and bauxite grinding production line

Bauxite is one of the most important industrial minerals and it being the aluminium ore, is the principal raw material for the production of alumina. Bauxite is formed by lateritization of various silicate rocks such as granite, gneiss, basalt, syenite, and shale. The bauxite rock usually includes other materials such as iron hydroxides, clay, silt and free silica. It most often occurs as a residual soil material in tropical and subtropical areas. It is the primary source of aluminum.

There are several crushers for choose to be bauxite crusher.
Jaw crusher, whose reduction ratio is up to 4-6 and the finished products are even, can be widely used in crushing hard, medium-hard, soft ore, such as various kinds of ore, slag, building stones, marble, etc with compression strength below 320Pa. This machine is suitable for mines, building materials, highway, water conservancy and chemical industry, etc.
impact crusher is optimized and widely applied in the first and secondary crushing. It can crush material like granite, basalt, bluestone, etc the longest side of which is less than 500mm, and anti-pressure strength is not more than 320Mpa, and the final product is ideal device for aggregation used in highway and railway surface as well as water and electricity industry.

Cone crusher series has a feature of reliable construction, high productivity , easy adjustment and low operating cost. It is widely used both domestic and abroad in metallurgy, architecture, roak making , chemistry and silicate industry for crushing various mid-hard and hard ores and rocks. It's spring release system acts as an overload protection to allow the tramp iron to pass without damage to the crushing chamber. The sealing system uses double dry oil and water sealing to separate the lubricating oil from stone dust to provide its reliable operationg .The crushing chamber has atandard, medium and short head typer to fit the needs of medium crushing , medium-fine crushing and fine crushing.

The hammer crusher (hammer mill) crushes materials by the collisions between high-speed hammer and materials. Its features are simple structure, high reduction ration, high efficiency and etc. The hammer crusher(hammer mill) are developed for both dry and wet crushing of brittle, medium-hard materials for the mining, cement, coal, metallurgic, construction material, road building and petroleum & chemical industries.

In the bauxite production process, we will mainly introduce to you bauxite grinding system.

For the bauxite powder grinding equipment, ball mill is used. The whole powder grinding system uses loop flow system. Meantime you can select the separator in accordance with the requirements. After crushed by bauxite crushers, the materials are grinded in the powder grinding equipment and discharged to high efficiency separator by elevator. Pulse bag dust catcher is also needed in the whole bauxite grinding plant.

SBM is a professional manufacturer of bauxite grinding mill and bauxite grinding plant. The commonest bauxite grinding mill is SBM MSB coarse powder mill. Besides, SBM can supply raymond mill, ball mill, vertical mill, etc and design kinds of whole grinding plant on the basis of customers' requirement. SBM grinding mill is your best choice of grinding bauxite.

These bauxite crusher can compose a complete bauxite crushing plant. It is the mainly machine in bauxite processing, and it's capacity can be adjusted. SBM is a professional manufacturer of bauxite crusher and bauxite grinding machine. If you need bauxite crusher and bauxite grinding mill, you can contact us.

concrete crusher

Recycle waste concrete / building rubble on-site into reusable material to save time, money & manpower!

Our mini recycling plant will crush reinforced concrete, bricks, blocks, tiles, asphalt, glass, porcelain, stone and rocks.   The crushers can be fed by a mini excavator, skid steer or by hand. Processing between 45-120 tons a day, the size of the product can be varied depending upon requirements, from fines to 75 mm minus agregate.

• Don’t pay for new aggregates
• Save on haulage
• Save on space and time
• Save on landfill charges
• Save on manpower 

We can contribute to the profitability of hundreds of companies and individuals in many diverse markets including:-

Concrete is most widely used in civil engineering. Concrete is of light weight, high strength and multifunction. Concrete is designed with new technology, new process and new equipments. Concrete is widely used in nowadays building industry. Concrete is widely made up with cement, rude aggregate, fine aggregate, addictive and water. Those materials get blended and will become harden and finally become the artificial stone. The main qualifications of concrete are peaceability, strength, transformation and durability. Strength is the main mechanical properties after it is harden and it reflects the artificial stone’s resist deformation quantitative skills.

Concrete is scaled into four levels according to the standard test method: C10, C15, C20 and C25. Concrete compression strength is the 1/8 to 1/13 of tensile compression. To improve the specific value of compression strength and tensile strength is the key part of improving cement performance.

Concrete crushing plant

Concrete is effectively an artificial stone or rock. Its primary properties are that is is workable before hardening, strong in compression and stays strong for extremely long timescales. Concrete is a strong hard building material composed of sand and gravel and cement and water. It is used for making buildings, roads, bridges, vessels pipes etc etc etc. As the concrete formulations develop concrete is increasing its range of applications such that it is making inroads into those presently monopolised by metals.

As concrete is so widely used in nowadays building industry, when those buildings reach the end of their service life it is also hard to deal with them. We should choose some hard concrete crushing plant to crush them into small pieces and recycle it.

The crushing process of concrete is nearly the same as stone crushing. Firstly, we choose the usable materials and transmit them with the vibrating feeder. Then vibrating feeder pours them into primary concrete crusher. Then products of primary concrete crusher get crushed by secondary concrete crusher. Secondary concrete crusher crushes stones into smaller size and usually they can get used. But more often the products of secondary concrete crusher get screened by vibrating screen and whose can fit the requirement will leave this process and become the final product and the others will go back to secondary concrete crusher or even primary crusher to get crushed. Finally, concrete all become the right products we need. Tertiary concrete crusher is usually used in special crushing process. Tertiary concrete crusher will process stones into much smaller size than secondary crusher. We usually choose mobile concrete crusher or portable concrete crusher is this process. Because it is really convenient to use mobile concrete crusher or portable concrete crusher in this process.

Concrete crushing plant

Concrete is usually piled in city road. So we should better choose mobile crusher as the main crushing plant in this process. Mobile concrete crusher or portable concrete crusher is one of SBM main products. This mobile concrete crusher is equipped with concrete crusher, belt conveyor, vibrating feeder and vibrating screen. The portable concrete crusher is a basic crushing system. SBM mobile concrete crusher includes mobile cone crusher, mobile jaw crusher, mobile impact crusher, crawler type mobile crusher and multi-crushing mobile crusher. SBM mobile crusher all passed the authoritative certification. SBM concrete crusher is also great for you: jaw crusher, impact crusher and cone crusher, which are totally 8 types.

Concrete Crusher Classification

Concrete crusher manufacturer SBM can supply you many concrete crusher equipments or concrete crushing plants in crushing industry. Concrete crusher mainly includes static crusher and portable concrete crusher. Static crusher includes concrete jaw crusher used as primary crusher for first concrete crushing stage. Concrete impact crusher, cone crusher, hammer crusher, hydraulic crusher are usually used as secondary concrete crusher. Portable concrete crusher is the most famous rock and mineral processing company in the world, is launching a new comprehensive portable plant for efficient fully mobile crusher.

Coal crusher and cola processing

Coal is the important energy resources and mineral resources in our life. In order to use coal efficiently, we usually crush coal into powder by coal crusher.

Coal Jaw crusher is the most common crusher equipment in coal crusher plant and used as primary coal crusher. It can crush big coal into small pieces.

Impact crusher is another common crusher that is used in coal crushing process. It is mainly used in primary or secondary crushing process.

Cone crusher is used as fine coal crusher machine, and used in secondary or tertiary crushing process.

Hammer crusher is a coal crusher with small capacity. Usually it is used with coal mill to grind coal into powder.

Mobile coal crusher is the convenient coal crusher. It unite the crushing equipment, belt conveyor, and vibrating screen. So crushing and screening process can be finished in this machine.

These stone crushers have their own benefits. How to choose which type of coal crusher is used in coal crushing depends on your requirements, such as crushing capacity, the finished size, etc.

Coal crusher plant

In fact, we rarely use only one crusher in coal crushing process. Usually we compose these coal crushers into a complete coal crusher plant.

A complete coal crusher plant includes crushing and screening machines. Jaw crusher is the primary crusher, impact crusher is the secondary crusher, cone crusher is the fine crusher. Raw coal is transported between these coal crushers through belt conveyor. The finished crushing coal materials is screened out by vibrating screen. The eligible coal materials enter into further process, while unqualified pieces return to the coal crusher for crushing again. In this coal crushing process, coal can be crushed into 30-50 mm. If you need coal powder, coal particle is grinded into powder by coal mill.

Coal crusher manufacturer

SBM is a coal crusher supplier in China, and design coal crusher for coal crushing process. With the development of 30 yesrs, our products have formed two main kinds – crushers and grinding mills. Crushers include jaw crusher, impact crusher, cone crusher, and vsi crusher. Grinding mills include ball mill, raymond mill, vertical mill, and ultrafine mill. We also supply a complete crushing and screening plant, such as stone crushing plant, coal crushing plant, ore crushing plant, concrete crushing plant, construction waste crushing plant and ballast crushing and screening plant. Now our crusher machines have export to all over the world, such as Indonesia, Philipines, India, Vietnam, USA, Australia, South Africa, Egypt, Germany, Poland.

Coal crushing and coal mill:

Though coal has many usages such as gasification, liquefaction, ethanol production, the major usage is used as fuel and coke. In order to make full use of coal and reduce the pollution of the environment, after the coal have been mined, people usually crush the larger coal block to small one by coal crushing plant, use coal mill or coal pulverizer to grind the coal.

Coal crusher:
In the coal crushing plant, coal crushing can resize the coal stone so that it can be easily handled and processed. For the Mosh hardness of coal is usually under 5, the miners can use jaw crusher, JC jaw crusher, impact crusher, hammer crusher etc. to handle it. After the coal has been crushed, we need vibrating screen to grade the coal by size and then transport the coal via belt conveyor. In this process, dewatering screen is optional to remove water from the product.
Coal Crusher is acknowledged in coal processing industry for a long time. SBM has many years manufacturing experience in coal crushing plant (coal crushing process, washing plant and belt conveyor). SBM is a major coal crusher supplier for power plants and coke ovens, crushing limestone for blast furnaces, and crushing a wide range of raw and manufactured materials for industry.
As the largest exporter in the design and manufacture of coal crushers and spare parts, SBM crushers are used in a wide variety of material reduction and processing applications in 100 countries around the world.

Coal mill:
As coal powder is the most important fuel in the power plant, The plant owners need coal mill or coal pulverizer to grind the coal to micro powders.
Raw coal (crushed) is fed through hopper at the top of the coal pulverizer and falls down to grinder ring to be pressed, crushed and milled into pieces by rollers. After the first crush, coal powder fall into the second and third layer. The pumping of the high-pressure centrifugal blower put the outside air into the coal mill. The coarse coal powder will be brought into the classifier.
As a pioneer in coal pulverizer, SBM has positioned itself well to meet the challenge of supplying coal mill with reliably quality and efficiently at the lowest cost.
SBM can manufacture and supply coal mill for all grades from hard coal to coke coal, our ball mill, High pressure Raymond mill, MTW trapezium mill, MTM trapezium mill, Coarse powder mill and micro powder mill is an ideal choice for power plants. The power plant can equipment different kinds coal mill to meet the required size.

Power plant coal mill Case:

Coal mill plays an important role in the coal-fired power plant. The power plant has two types of mills: ball mills and grinding mills.
Ball Mills. A ball mill uses steel balls and crush any coal that is in their way.
grinding Mills. The other type of coal mills are grinding mill. The coal gradually breaks into powder. The outlet of the mill includes a blower that blows the fine powder up to the boiler furnace.
After the coal has grind to micro powder, it will transported to boilers via a round pipe. The crushed coal is conveyed using primary combustion air into the furnace side of the boiler. The coal powder is feed into the coal mill through a central inlet pipe where gravity is used to lead the coal to the bottom of the coal mill, where the grinding table and heavy rollers of coarse powder pulverizers or micro powder grinding mills pulverizes the coal to particles. The air flow is fed through the mill, with the purpose of heating and lift the coal particles out of the coal mill and into the boiler furnace.

stone crusher machine for sandstone mining

Stone Crushing Plant

The stone-making production line produced by our company can provide you with all-around technical support. The whole line consists of vibrating feeder, jaw stone crusher, impact crusher, vibrating screen and belt conveyor. According to specific requirements, we can combine different models together to meet various needs
.
1. brief introduction of stone production line:
First the raw materials are regularly conveyed into the elementary-crushing machine by the vibrating feeder, then the belt conveyor transfers the elementary products to impact crusher for secondary crush. The secondary products will be separated into stone of different sizes by the vibrating screen. The parts not satisfying the needs will be returned to the impact crusher for further crush.

2. Features of the stone-making production line:
The whole line is highly automatic and the size of the finished products is even, good-shaped and can be adjustable, with high crushing ratio, low power consumption and high capacity, which is suitable for big, middle and small projects, such as road and bridge construction.
The complete product line assures matching the right crusher to individual customer application requirements.

Sandstone is sand cemented together into rock, the structure is stable. Its color has a wide range from nearly white to nearly black, with gray, brown, red, pink and buff in between. The chemical constitution of sandstone is the same as that of sand; the rock is thus composed essentially of quartz. The cementing material that binds together the grains of sand is usually composed of silica, calcium carbonate, or iron oxide. Sandstones are used for variety of purposes. They are mainly used in paving, construction, road building etc. It is used as ornamental rocks for buildings, monuments, grave stones, and many other possible uses.

Sandstone Crusher and Crushing Plant

In the construction and quarry, the sandstone is getting more and more widely used. The crushed stone is used mostly as aggregate for road construction and maintenance. It is also used for making cement and lime and other chemical applications, and in agriculture. Our company is the major crusher manufacturer in China, we have many types stone crusher machines for your reference, like cone crusher series plant, impact crusher series plant, jaw crusher series plant, or our new product portable series crusher plant.

The mobile stone crusher has excellent performances, the design idea is based on the client’s requirements, which clears faults of the crushing place, surroundings and the complex basic configurations. It is really supply simpler, high efficient and lower cost machines for clients.

Copper Crusher – Copper Ore Crusher – SME Crushing Plant

Copper ore is kind of very important metal materials to the national economic construction. Copper mine is of many excellent performances, such as conductivity, thermal conductivity, wear resistance, easy casting, mechanical properties and easy made of alloy properties. Therefore copper mine is widely used in electrical industry, machinery manufacturing, transportation, construction, electronic information, energy, military and other industrial fields. Usually it’s in the form of copper metal and copper alloys. It is generally believed that the number of copper mine consumption and uses often reflects the level of a country's industrialization. Especially with the new wave of industrial revolution and advent of high technology development, human demand for copper ore will gradually increase.

Copper Crusher

The use of copper

Most copper is used for electrical equipment (60%); construction, such as roofing and plumbing (20%); industrial machineri, such as heat exchangers (15%) and alloys (5%). The main long established copper alloys are bronze, brass (a copper-zinc alloy), copper-tin-zinc, which was strong enough to make guns and cannons, and was known as gun metal, copper and nichel, known as cupronickel, which was the preferred metal for low-denomination coins. Copper is ideal for electrical wiring because it is easily worked, can be drawn into fine wire and has a high electrical conductivity.

Indonesia is of rich copper mine and so the copper mining crushing plant is widely applied in Indonesia mining. Compared with Indonesia copper mining, there are several countries which are also rich of copper mine, such as Chile, the United States, Poland, Zambia, Russia, Zaire, Peru, Canada, Australia, Kazakhstan, the Philippines and China, etc. In particular, Chile and the United States are the copper mine power. In recent years, with the number of cooper mine new discovery or expansion of existing copper mine reserves, Indonesia Copper Ore resources are growly rapidly.

Copper mining process

There are two distinct types of copper ore, the sulfide ore and the oxide ore. The sulfide ores are beneficiated in flotation cells, while the oxide ores are generally leached.

First the copper ore from a open pit mine is blasted, loaded and transported to the primary crushers. Then the ore is crushed and screened, with the fine sulfide ore (<0.5 mm) going to froth flotation cells for recovery of copper. The coarser ore goes to the heap leach, where the copper is subjected to a dilute sulfuric acid solution to dissolve the copper. Then the leach solution containing the dissolved copper is subjected to a process called solvent extraction (SX). The SX process concentrates and purifies the copper leach solution, so the copper can be recovered at a high electrical current efficiency by the electrowinning cells. It does this by adding a chemical reagent to the SX tanks which selectively binds with and extracts the copper, is easily separated from the copper (stripped), recovering as much of the reagent as possible for re-use. The concentrated copper solution is dissolved in sulfuric acid and sent to the electrolytic cells for recovery as copper plates (cathodes). From the copper cathodes, it is manufactured into wire, appliances, etc. that are used in every day life. Below are some photos of the process equipment at an Arizona Copper Mine.

Copper crushing

When the copper ore come out from the ground, It is loaded into a 300 ton truck for transport to the crusher. The complete copper crushing plant includes jaw crusher as primary crusher, impact crusher and cone crusher. After crushed, the copper ore must be screened out according to size by screening machine and distribute the classified ore to a series of conveyors, for transportation to the mill for further processing.

In the copper ore grinding process, rod mill, ball mill and regrind ball mill are used. Ball mill is the most common copper ore grinding mill in copper ore concentrator.

SME can supplies a complete crushing plant for copper mining in Chile, Peru, USA, Congo, Zambia, KZ, Mexico, Belgium, Germany, Zaire, and can also design the special crushing plant according to your requirements.

SME is a professional copper mining equipment manufacturer and exporter. More than 20 years, we have established lots of copper mining crushing plant in Indonesia. The copper mining equipment are mainly divided into two kinds that are copper crusher and copper grinding equipment. To provide more advanced copper mining equipment, there is mobile copper crusher plant invented by our engineers. Mobile copper crushing plant has been widely applied for Indonesia Copper Mining.

Copper Crusher – Copper Ore Crusher – SME Crushing Plant

Hydraulic Cone Crusher and ZYC Series Cone Crusher

cThe Hydraulic Cone Crusher is widely used for secondary and fine crushing in the fields of mining, building materials, metallurgies and so on. The Hydraulic Cone Crusher can crush materials with middle and high hardness such as, ironstone, copper ore, granite, basalt, cobblestone, marble, limestone and so on. The Hydraulic Cone Crusher is popular to be used in high automatic crushing line which has strict requirement for finished products’ shape and ratio.

ZYC cone crushers on the basis of absorbing foreign technology, based on customer needs, based on the lamination theory and a number of broken ground breaking conceptual design developed by a small set of high-frequency pendulum, optimize stroke in the cavity and reasonable one of the modern high-performance cone crusher.

HP series Cone Crusher adopts computer optimization design to speed up main shaft speed. The unique crushing chamber replace system can quickly replace components in crushing chamber to meet different size requirement. The friction disc design and rotation of eccentric shaft bushing around fix cone plus more reasonable "labyrinth seal" system are unique features of HP series, which have more advantages like easier operation, larger application scope, more reliable, more smooth functioning comparing with spring and traditional cone crusher. It is the most ideal equipment for large stone crushing factory and mining industry.

Features of ZYC cone crusher

1. High crushing ratio and production efficiency
2. Less spare part consuming and low operation cost
3. between-layer pressuring crushing and better finished product shape.
4. Hydraulic pressure protection and hydraulic pressure cavity clearing, high automatization and less stop production and repairing time.

5. Thin oil lubrication makes the service time increased.
6. Manifold crushing cavity.
7. Easy maintenance and operation.
8. The crusher can provide customers a higher capacity, better product shape, and easy be operated.

Working Principle of ZYC cone crusher

When cone crusher work, by the motor through V-belt, host pulley, drive shaft, a small bevel gear, bevel gear driving a large external brass rotation axis line of cone crushing force copper out by rotating the swing next move, making the broken wall near the surface from time to time and mortar wall from time to time to leave the rolling surface, so that the material in the fixed cone and fixed cone crushing cavity composed of the ring constantly under attack, pressing and bending and breaking. After repeated squeezing, shock and bending, the material crushing to the required size, the lower discharge.

5 worst ways to pop the question

Proposals are at their peak around the holidays, with one in four grooms popping the question in December. Incidentally, it's also the month of a statistical spike in break-ups. Coincidence? Maybe not. A bad proposal can mean the end of a relationship, and it's not always obvious what's bound to backfire. Before you bite the bullet, educate yourself on how not to pop the question.

1. Don't propose in public

If you haven’t watched the video (above) of a Jumbotron proposal that backfired, consider it a warning. “Proposing in front of an audience of thousands puts way too much pressure the woman,” says Amy Eisinger, an editor at TheWeddingChannel.com. “You never want to make her feel uncomfortable or pressured to answer right away.” It could lead to a false positive: “Your partner may agree to your proposal to save face in public and then privately retract it,” warns relationship psychologist, Dr. Linda Young. The same goes for proposing in front of family members. “The proposal should be about the two of you and no one else,” says Eisinger. “Overall it’s a great idea to consult the family beforehand but when it comes down to the moment of asking, you should do it when no one else is in the room.”

2. Leave food out of it

As a general rule, any proposal that’s been part of a plot line on a sitcom is a no-go. Proposing at a restaurant with a ring in the dessert is as unoriginal as giving chocolates on Valentine's Day. “I think what any girl really wants is to make her feel special, unique,” says Eisinger. Pulling a move that’s over-used takes the personal aspect out of your romantic moment. It also can lead to sitcom-style moments as one woman discovered when she swallowed the engagement ring hidden in her milkshake. She spent the night in the hospital and had to wait a few days to reclaim her prized possession from the most unfortunate of places.

3. Don't invite the internet into your intimate moment

"To @emilychang – After fifteen years of blissful happiness I would like to ask for your hand in marriage?" "@maxkiesler – yes, i do." To the Twitter community, this was just about the sweetest proposal in the blogosphere. In the real world, however, it's a little sterile. “If you're doing a video or tech driven proposal you should be in the same room to experience it together,” says Young. This way you remember the moment as one you shared together, not with friends or co-workers. 

Then there’s the problem of YouTube. Ever since wedding proposals starting getting attention on the site, people have turned the question into an opportunity for viral fame. Recently, one guy spelled out "will you marry me?" in Super Mario Brother’s gold coins as his bride played the game (see video above). Aside from the preoccupation with posting a viral video, the problem with hi-tech proposals is privacy. "Total strangers or your Facebook acquaintances know about your engagement before your close friends and family do," says Eisinger.

4. Don't propose the day you wed

(Courtesy of Danny Bonaduce/People Magazine)

The recent wedding of reality show star Danny Bonaduce and his manager Amy Railsback was a surprise for everyone but the bride. On a trip with Railsback to Maui, Bonaduce got a call from the hotel’s wedding planner informing him that he was going to walk down the aisle at sunset. Luckily he was a good sport, but a surprise proposal-turned-wedding can almost feel like a kidnapping with no time to think through whether you really want to go through with it all. "You never want the other person to feel pressured into it," warns Eisinger. You could end up estranged before your honeymoon. Thankfully, that wasn't the case for Bonaduce...yet. 

5. Beware of Mother Nature

(Courtesy of Transformers/Paramount Pictures)

No matter how much you’re meant to be together, sometimes weather gets in the way. One guy had the best intentionshiking up a mountain with his girlfriend to propose. But when they got lost and the temperature dropped, they had to call in the mountain rescue services to save them. Needless to say, he never got the chance to get down on one knee. Another groom-to-be lost the $9000 heirloom he was about to give to his future wife when she dropped it on a rock jetty.  Then there’s Megan Fox who was so thrilled to get a ring from Brian Austin Green that she dropped it on the beach and sent a search party to find it, without success. Moral: Save the outdoors for the honeymoon and pop the question where there's limited potential for natural disaster. mobile crusher

quartz sand crusher and quartz grinding mill line

There are many crushers in SBM can crush quartz, such as jaw crusher, cone crusher etc. And quartz crusher is the major mining crusher equipment to crush quartzite stone, and SBM is the major mining crushing machine manufacturer in China. Usually, quartz crusher can be called as quartz grinder

Quartz crusher is the major mining crusher equipment to crush quartzite stone, and SBM is the major mining crushing machine manufacturer in China. Usually, quartz crusher can be called as quartz grinder.
Quartz crusher is suitable for crushing materials with particle size more than 3mm. SBM quartz crusher also can used as slag crusher, lime stone crusher, granite crusher, iron ore crusher, marble crusher and so on.
SBM quartz crusher contains PE jaw crusher, JC jaw crusher, PF impact crusher, PFW impact crusher, cone crusher, VSI crusher and mobile crusher. The quartz crushing units can be seen in the vicinity of almost all major cities and towns.

Quartz sand is the important artifical sand used in construction building. In quarry, we can use quartz sand making machine including quartz sand crusher, sand washing machine, and screening machinery in quartz sand plant.

We can design the different quartz sand making plant, according to the requirements about sizt of quartz sand. Different quartz crusher can be used for crushing quartz into different size. Usually the complete quartz sand making production line uses jaw crusher for primary crushing, then cone crusher as fine crusher. VSI crusher is the special quartz crushing machine used in sand making process. It is used to make quarta sand with particle of uniform diameter, so it is also called stone shapping machine.

Quartz sand can be divided into refined the processing plant quartz sand, white quartz sand, ordinary quartz sand. The size of ordinary quartz sand range 5- 220 mesh. The processing plant quartz sand range 5-480 mesh. White quartz sand ranges are 1-0.5mm, 0.5-0.1mm, 0.1-0.01mm, 0.01-0.005mm.

SBM is a manufacturer of gravel crushers and grinder mills, can supplies glass crushing plant, ceramics crushing plant and quartz sand production line. Of course, we can also design quartz crushing plant according to the requirements of customers. SBM not only provide quartz quarry equipment for mining for sale with best prices such as quartz crusher machine and quartz grinding mill, but also the installastion and maintenance service.

http://sbmzhcn.blog.chinabyte.com/

Zenith Grinding Mill an Grinding Machine

Shanghai Zenith Grinding Mill And Grinder company is an enterprise which is specialized in making and scientific research of grinding mill(Grinding Grinder). Her serial grinding mills(Grinder) keep advantage in the domestic and abroad market. The main product includes R pendulum grinding mill(Grinder), high pressure grinding mill, high-pressure micro fine grinding mill and super micro fine grinding mill.

Grinding Plant is made of jaw crusher, bucket elevator, electrovibrating feeder, main unit, optional equipment, blower, centrally electric control system, etc. According to customer’s specific requirement, we can choose high pressure suspension grinding mill（Grinding Grinder） or MTM medium speed trapezium mill.

To use the Ball Mill, the material to be ground is loaded into the Neoprene barrel that contains grinding media. As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder over a period of several hours.
Quite simply, the longer the Ball Mill runs, the finer the powder will be. Ultimate particle size depends entirely on how hard the material you're grinding is, and the time how long the Ball Mill runs. Our Ball Mills have been used to grind glass, powder food products, creat custom varnishes,make ceramic glaze, powder various chemicals, and make Black Powder.

Ball Mill

Ball mill is widely used for milling various kinds of ores or rocks in metal and non-metal mining and building material industry.The main bearing of the ball mill with the shell diameter 900-2100mm is spherical liner bearing; for the shell diameter 2700mm, the main bearing is completely closed self-aligning 120°bearing with strong alloy of high lead and low tin with low hardness, underneath laid with cooling copper piping full of water The bearing is of static pressure structure with high and low pressure united oil lubricating system.

Coal Grinding Mill

The Grinding Milll adopts German advanced-milling technology. Combining the characteristics of similar domestic products, it is a kind of new-typed moderating-speed coal mill, which is developed on the basis of RP; its components are newly developed. This machine is of scientific design and superior performance. The MBM Coal Mill is the optimal milling equipment in electric power, metallurgy and cement industries. It consists of motor, reducer, case, milling device, separator, outlet, coal feeding pipe, loading device, control box and sealing apparatus. The fittings are all of superior performance in the world at present. We ensure good quality and durability of the whole machine.

Advantages Of The MBM Coal Mill:

1. The concrete base weight required is only 3 times of that of other similar machines thus the construction expenses is greatly reduced
2. Small vibration while using and doesn't need shock-absorbing device
3. Large load adjustment scope, so it can run under various environments
4. Can bear very strong explosion pressure
5. The grinding roller adopts new material and new craft, which ensures long service life and low maintenance cost
6. There is gap between the grinding parts; it can start with load or offload

Vibration Table,Vibration Table – mining Equipment

The Series 2500 Vibration Table has been very well received. It is lightweight yet rigid. The table’s modular construction makes it very easy for us to assemble and ship a standard table from the size selection chart in three to four weeks.

With the addition of the new Series 320 Vibration Isolation Bearings, a wider range of payloads can be isolated making it easier to add and remove microscope accessories.

And, as always, the isolation is only where you need it - - beneath the instrument. You are free to locate this area on the left-hand side, right-hand side, or in the center as is shown in this picture

This table is available in widths from 30” to 72” wide. The isolation area can be placed on the left hand side, the right-hand side, or in the center as is shown in this picture.

Options available: Keyboard tray, shelves, cable and power management features, monitor stand and casters.

For Compaction of cement cubes and mortar prisms in triple-gang, etc. Molds in accordance with DIN 1164 and EN196-1

vibration table is now used as an alternative method for the fabrication of mortar specimens under ASTM C109. It is an accepted fully automatic specimen preparation machine, allowing your technicians to set up the specimens and walk away. ToniVIB will ensure highly accurate and repeatable test specimens to increase your test production and results.

The table operates with a free swinging vibration plate driven by a magnetic vibrator with a frequency of 3000 oscillations per minute. The user can control the oscillation amplitude, variable from 0.4mm to 1mm. A timer is also included with the unit to ensure time lapse accuracy.

Accessories for the ToniVIB include clamping devices, triple-gang moulds and a feeding hopper. A number of different moulds for standardized testing are available.

Mobile Crushing Plant(Mobile Crusher) is convenient, flexible and strong in mobility, so it can save a large construction capital and relocation. Raw Materials can be broken at the locale without being transported again, and also can be moved with the promotional exploitation of the raw material

stone crusher for marble process

Big size stones are transferred to primary crusher through Vibrating Feeder from hopper for first crushing, then the crushed materials are transferred to Impact Crusher through Belt Conveyor for secondary crushing. The crushed materials will be transferred to the vibrating screen, and separated to different sizes. Those stone crusher aggregate with suitable size will be transferred to the final product pile and those with unsuitable size will be transferred to the Impact Crusher for re-crushing. This forms a closed circuit manifold cycles. The sizes of final products will be graded and separated according to customers' requirements, and the deduster will be attached for the sake of environment protection.

Stone crusher is suitable for crushing materials with particle size more than 3mm. According to the difference between feeding opener and output sizes, they are usually separated: primary stone crusher, secondary stone crusher (medium crusher) and fine stone crusher. BINQ stone crusher can used as slag crusher, quartz crusher, lime stone crusher, granite crusher, iron ore crusher, marble crusher and so on.

Stone crusher is widely used in mining and construction industry, metallurgy industry, building material, highway, railway, water conservancy, chemical materials and many other departments, the BINQ stone crusher contains PE jaw crusher, JC jaw crusher, PF impact crusher, PFW impact crusher, cone crusher, VSI crusher and mobile crusher. The stone crushing units can be seen in the vicinity of almost all major cities and towns.Stone crusher features large crushing rate, high yield, equal product size, simple structure, reliable operation and easy maintenance, economic operating costs etc.

In order to be used for buiding materials or industrial powder, marble must be crushed into small pieces. In this crushing process, we need marble crusher.

Marble crusher is the common marble mining machinery that used for crushing marbles into small size. In marble quarry, there are several mining equipmetns used in marble crushing and screening plant.

Vibrating feeder is the feeding machine that is used to feed stone materials evenly to the crushing machine. There are two types of vibrating feeder: inclined feeder and horizontal feeder. Some models have one motor, while the others have two motors.

Marble stone crusher machine has several types. Marble jaw crusher is the primary crushing equipment; it is used in primary crushing process in marble crushing plant. Impact crusher and cone crusher is the secondary crushing machinery. They are used in secondary or tertiary crushing process.

Vibrating screen is the Separator machine. It is used to screen out the suitable particles throuth screen with different sieve pore size. There are two kinds of screening machine: Circular Motion Incline Vibrating Screen and Linear Motion Vibrating Screens. According to the the screening requirements, we install different screen layers.

There is another marble crusher; it is not only used as crushing machine, but also the screening machinery. It is mobile marble crusher or portable crusher. It is installed crushing machine, vibrating feeder, vibrating screen and belt conveyor together.

symons nordberg Crusher and nordberg jaw crusher

7'0" Symons Nordberg Heavy Duty Short Head Cone Crusher

- Make – Symons-Nordberg
- Model – 7'0"
- Type – Heavy Duty Short Head Cone Crusher
- Condition – Good
- Unit Price – P.O.R
- Currency – US$
- Year – N/A
- Quantity – 1
- Unit – CR3003
- City – Kiruna
- State/Province – N/A
- Country – Sweden
- symons nordberg Crusher

- Part no. – N/A

Description - (1) 7' 0" Symons Nordberg heavy duty short head cone crusher S/N 730 with coarse bowl. Unit has hydraulic clamping, clearing and adjustment. It has been completely reconditioned and is complete with lubrication system and hydraulic power pack. Power is provided by a 220kw, 380/220v, 740 rpm drive motor.

Unique Nordberg crusher in China Jaw Crusher Application:

One of the most popular stone-crushing equipments in the world, PE series Fine Jaw Crusher is ideally suitable for primary and secondary crushing.
The highest anti-pressure strength of crushed material is 320Mpa. Our design and production are of high position both at home and abroad. One of our main products, Jaw Crusher is designed by our engineers with large reduction ratio, even granularity, simple structure, reliable operation, convenient maintenance, low cost, Jaw Crusher is widely used in mining, metallurgy, construction, highway, railroad, and chemistry industries. 

Jaw Crusher Operating Principle:

This jaw crusher uses motor as its power. Through the motor's wheels, the eccentric shaft is driven by the triangle belt and slot wheel to make the movable jaw plate move by a regulated track. Therefore, the materials in the crushing cavity composed of fixed jaw plate, movable jaw plate and side-lee board can be crushed and discharged through the discharging opening.

nigeria ore Mining Equipment,iron ore crusher in Nigeria

Introduction to Gold Mining

1.Rock is removed from the mine.Rock containing gold, is hauled to the Crushing Facility. Rock without gold is taken to the overburden storage areas.
2.Large haul trucks are used to move the rock from the Mine to the crushing Facility, or to the overburden storage areas.
3.Ore is processed at the two stage Crushing and Screening Facility,and hauled to the Valley Leach Facility.
4.The Valley Leath Facility is a lined, zero discharge area where dilute sodium cyanide process solution dissolves the gold, and is captured in the bottom of the lined area.
5.The gold is recovered from the process solution with a carbon adsorption process. The final product is a gold and silver button called Dore.
To separate the gold from the ore collected by the diggers in the mine tunnel, the ore was first crushed by a series of hammers in the stamper head. The crushed ore was then run over copper plates that had been treated with cyanide and then tinned with "quick-silver" (mercury). Mercury has a chemical affinity to gold and hence catches it. The resulting mixture was then heated to evaporate the mercury until only the gold remained. This method of extraction was used for many years although it was generally accepted that it was only 60% effective.

Gold Mining Applications

Gold is a precious metal mined to create practical and ornamental pieces of work. Refined gold ore can be melted, poured and cast into almost any shape to make jewelry. There are numerous industrial applications for gold, as well. Many electronics and medical devices rely on gold's ability to conduct electricity and resist corrosion. Here's how to identify gold ore.

Gold Ore is an international mining and exploration company with one operating gold mine and several gold and base metal exploration properties at various stages of development. The Bjorkdal Gold Mine and the company's exploration properties are all located in the safe, highly developed and mining friendly jurisdiction of Sweden. Bjorkdal, is currently producing gold from both underground and open-pit operations at an annualized rate approaching 40,000 oz/year. The company is currently focused on expanding the resource base at the mine through development drilling, while also searching for new deposits on highly prospective ground surrounding the minesite. The physical assets of the company are complemented by an experienced operations team at the Bjorkdal Mine and an experienced management team, located in Vancouver, Canada.

Gold mining mahcine

Gold mining machine has an important role in gold mining industry. SBM is a professional gold mining machine manufacturer of gold ore cursher ore gold mining crusher and gold mill machines. In gold mining, high technology gold mining equipment, such as gold detectors, elegant modern dredges, and lightweight sluices will be needed.

Gold crusher is also used as the primary crusher for crushing gold ore in gold ore crushing industry. Jaw crusher is the most used gold mining machine for crushing ore. Jaw crusher can reach the crushing ratio of 4-6 and the shape of final product is even. So gold jaw curshers are widely applied to crush high hardness, mid hardness and soft rocks and ores such as slags, construction materials, marble, etc.

Gold mobile crusher is the newly type of gold mining machine for gold crushing. Gold ore mobile crusher can eliminate the obstacles of the crushing places and circumstances, and offer the high efficient and low cost project plants for the client. To the client, gold mobile cursher is the best choice as a gold mining machine.

Nickel Ore Processing and Nickel Ore Crusher

Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are magnetic at or near room temperature. Its Curie temperature is 355 °C. That is, nickel is non-magnetic above this temperature. Nickel belongs to the transition metals and is hard and ductile.

Nickel is extracted from Nickel ore. The nickel ore mining is a complex process which needs many equipment. The main processes include:

• Crushing
• Flotation
• Pressure acid leach of nickel laterites
• Pressure oxidation of sulphides
• Roasting and smelting
• Ferronickel production
• Grinding
• Solvent extraction separation
• Mixed sulphide precipitation
• Hydrogen reduction
• Electro-refining

The most notably ore dressing method of sulfide copper-nickel mine is flotation, and magnetic separation and gravity separation is usually secondary beneficiation. In the flotation of sulfide copper-nickel ore, we often use collector and frother. There is a basic principle to determine the flotation process that is the fact that it’s better to make copper into the nickel concentrate while as much as possible to avoid nickel into the copper concentrate. Because the nickel in copper concentrate is of large loss in the smelting process, while the copper in nickel concentrate can be more completely recovered.

It is shown in the picture above with the sulfide copper-nickel ore beneficiation process. 

Nickel oxide ore currently used crushing and screening processes to pre-remove bulk rocks with weak degree of weathering and low nickel. As the nickel in the nickel oxide ore often scattered in gangue minerals in the form of isomorphism and their grain sizes are very fine, nickel oxide ore cannot be enriched by mechanical dressing methods. On the contrary, they must be only sent for direct smelting.

In the both beneficiation process of sulfide copper-nickel mine and nickel oxide ore, nickel ore crushing and grinding are required. Symons cone crusher is widely used for nickel ore crushing. There are standard cone crusher and short head cone crusher. Both them have been used as nickel ore crusher. After crushed by cone crusher, the materials must be grinded by rod mill and ball mill before being sent to flotation. Vibrating screen is used to separate different sizes of nickel ore. The screening equipment is also necessary for nickel ore crushing and grinding.

SBM is professional crushing equipment and grinding machine manufacturer. We have designed special Symons cone crusher for nickel ore crushing and ball mill for nickel ore grinding. Both the Symons cone crusher and ball mill are of high quality which has both passed international ISO9001:2000 certificate and UE, CE certificates. Apart from Symons cone crusher and ball mill, SBM crushing equipment also includes jaw crusher, impact crusher, VSI crusher and SBM grinding machine also includes coal mill, Raymond mill, vertical ore mill, trapezium grinding machine, coarse powder mill, etc.

Our goal is to provide our customers with best products and services. Our engineers spread around the global to be closer with you.

Molybdenum Ore Crusher and Molybdenum Ore Grinding Mill Machine

Molybdenum ore beneficiation flotation method is mainly recovered in the molybdenum mineral is molybdenite. Sometimes in order to improve the quality of molybdenum concentrates, to remove impurities, to further chemical processing molybdenum concentrate outside the grounds. Molybdenite crystal structure of hexagonal layered or plate by Fan and health along the layer S-Mo-S structure and the layer of polar covalent bond formation of S-Mo. Layers and weak bonding between layers, and layer covalent bonding even stronger. Therefore, the structure of molybdenite layer solution can easily split along the flaky or tabular output, which is the natural floatability chalcocite good reason.

Molybdenum Ore Crusher

Practice has proved that: at the right under the grinding fineness, the dissociation of molybdenite crystals occurs in S-Mo-S layer, the S-Mo surface hydrophilic small proportion. But after grinding time, S-Mo surface ratio of increase in the floatability of decline, although at this time adding a certain amount of polarity, such as xanthate collector class is beneficial to the recovery of molybdenite, but after grinding with the new sludge floatation effect. Therefore, the sorting of molybdenite to avoid and prevent excessive wear in the production and the need to adopt multi-stage grinding sub-sorting process, step by step to monomer dissociation, to ensure a high recovery of molybdenum concentrate.

Molybdenum mining and processing techniques have been improved continuously since the first mine was started at Climax near Leadville, Colorado in 1916.Today, the principal moly mines, both primary and by-product, are found along the Great Continental Divide of the Americas, in China and in the CIS. Many of these mines are amongst the most productive in the world, with the largest capable of moving over 50,000 tonnes of ore per day.
Mining and processing plants are operated with minimum emissions under stringent environmental protection regulations.

SBM is professional crushing equipment and grinding machine manufacturer. We have designed cone crusher for Molybdenum Ore Crusher, ball mill for nickel ore grinding, vibrating screen for sieving.

The ore is crushed to -5 inches in primary cone crushers, then reduced to -1/2" in short head cone crushers. The ore is then ground to -100 mesh in ball mills. Using wet magnetic separators the magnetic ore is separated and further reduced to -200 mesh in a ball mill.

Apart from cone crusher and ball mill, SBM crushing equipment also includes jaw crusher, impact crusher, VSI crusher and SBM grinding machine also includes Raymond mill, vertical mill, trapezium grinding machine, coarse powder mill, etc.

If you want to know more information about Molybdenum Ore Crusher, you can contact us.

mixer grinder and mixer grinding mill

About Mixer Grinder

Mill Powder Tech. Solutions established for over 50 years, Mill Powder Tech Co., Ltd. continues to retain it's’ well known products and excellent quality. In recent years, the company has adopted new management strategy, with focus on maintaining high quality control and manufacturing highly dependable, efficient, and durable equipments. Mill Powder Tech has been dedicated to dry material grinding and mixing technology, covering fields in spices, condiments, bio-tech, dietary supplements, recyclables, herbal medicine, pharmaceutical and many other production lines.

[ Mill/mixer Products ]

Mills (Pulverizers), Mixers (Blenders) and Turnkey Equipment for Foodstuff, Pharmaceutical, Biotech, Chemical, Rubber, Plastic and Recycling.

1. Mill (Pulverizer) (Crusher): Turbo Mill, Pin Mill, Vertical Mill, Hammer Mill, Grinding Mill,Cutting Crush Machine, Plastic Pulverizer, Bread Crumb Grinder.
2. Grinder (Roller): Powder Grinder, Spice Grinder,Sugar Grinder,Centrifugal Grinding Machine, Air Leading Grinder, Miniature Grinder, Oily Materials Mill, Peanut Milling Machine, Sesame Milling Machine.
3. Mixer (Blender): Powder Blender,Rotary Cone Mixer grinder, Double Cone Mixer grinder, Ribbon Mixer grinder.

[ Whole Plant Turnkey System ]

1. Turnkey milling system of Foodstuff, Grains/Beans, Rice, Sugar, Salt, Alga-Alga, Cone, Starch, Milk Powder, Wheat, Chili, Cumin, Coriander, Turmeric, Pharmaceutical, ad Biotech (Nitrogen based cryogenic milling)
2. Turnkey mixing system of Milk Powder, Seasoning Mixing, and food powder ingredient (Juicy powder, flour, Spice powder, 3 in 1 coffer powder), chemical powder mixing, auto loading & discharging, and packing system.
3. Turbo Mill Turnkey Plastic waste recycling system: EVA, Rubber, Sponge, Saw Dust, Rice Husk, Palm Oil Shell, PVC, PET, PE, PS, ABS, Resin, Limestone, Oxide, Paper, Poster…etc;
4. Turbo Mill Foodstuff & Chemical Turnkey pulverizing for getting Ultra fine powder, auto-recycling, air separation and vibro sieve powder separation.

The Hammer Mill(Hammer Crusher) crushes as a mixer grinder by the collisions between high-speed hammer and material, which features in its simple structure, high reduction ration, high efficiency, ect.. The Hammer Mills were developed for the both dry and wet crushing of brittle, medium-hard materials for the mining,Plastic, coal, metallurgic, Mineral Stone, Chinese medicine, and Petroleum & Chemical industries.

mirror iron ore crusher

Iron ore is one of the most common minerals in the earth' crust. After the mirror iron ore crusher is mined and processed in an iron ore beneficiation plant, iron ore is made into different products for everyday life.
The major four usage of iron ore are:
1) Cast iron: it is ideal for moulded parts, like car engine blocks.
2) Wrought iron: it is suitable for use in outdoor furniture, porch railings and other decorations.
3) Steel: it is an excellent material for thousands of different uses.
4) Stainless steel: it is an ideal material for motor vehicle parts, hospital equipment and food preparation tools and utensils.
Iron ore is widely distributed in Chagai and Kalat area, Nizampur, Kalabagh/Mianwali in Pakistan.

Iron ore crushing plant plays an important role in mirror iron ore crusher mining and beneficiation. Zenith Iron ore crushing plant will equip with different crushing equipment from primary crusher, secondary crusher, tertiary crusher, washing equipment, sieving equipment and transferring equipment according to the site and the demands of the clients.
As a major iron ore crushing plant manufacturer and supplier in China, our stationary iron ore crushing and screening plant works as follows:
Firstly, the primary heavy duty crusher will reduce the run-of-mine iron ore up to 1.3 meters in diameter into lumps about the size of a football feeding by vibrating feeder, it is then transferred to a secondary crusher by heavy duty conveyor belt, where the sized iron ore is broken down into grapefruit-sized lumps. Then the crushed iron ore will be transferred to sieving equipment for grade. The oversize is returned for tertiary crushing after which it becomes part of the feed to the product screens. Secondly, after the crushing process is over, the sized iron ore will be sent to a concentrator where waste shale and low-grade ore is removed so the saleable lump and fines products can be produced. Thirdly, a washing plant is needed to remove the ultrafine iron ore. After the washing process, the final iron ore products are produced. Then it will be transported to a stockpile.

Main iron ores are magnetite, hematite, limonite, iron silicate ore, iron silicate mineral, etc. The most commonly used crushers in iron ore mining industry are jaw crusher, impact crusher, hammer crusher and high-efficient iron ore fine crushers, etc. In iron ore mining, customers usually choose a complete iron ore crushing production line for higher efficiency. At present, the most popular iron ore production line consists of two jaw crushers. After crushing, the material will be sent for the magnetic separation, and then into the ball mill for grinding.
Beneficiation process of Mirror iron ore
Mirror iron ore crusher equipment all the equipment The main products are: Jaw crusher, hammer crusher, roller crusher, vertical impact crusher, cone bearing ball park energy efficient, vibrating screen, automatic anti-sand Spiral pole machine, high efficiency flotation machine, mining stirred tank feeder, concentrator, mine hoist, mine conveyor, pre-water into a ball plate, spiral chute, dressing shaker, washing machines and other equipment. The following flow chart iron ore lens in the device name as follows: the original ore - Crusher - Vibrating Screen - ball mill - grading machine - magnetic separator - dryer. Hematite iron ore mirrors a subspecies. Often is olated sheet-like polymer film collection or roses. Because often containing magnetite particles and a magnetic inclusions.
SBM, mining and construction machinery manufacturer can supply you related mirror iron ore ore crushing equipments such as mirror iron ore ore crusher or mirror iron ore crusher, for example, mirror iron ore jaw crusher, mirror iron ore impact crusher, mirror iron ore cone crusher and so on. Besides, after crushing stage, SBM mirror iron ore ore grinding mill or mirror iron ore mill are used widely in mirror iron ore process in ore mining industry. In recent years, SBM has developed advanced ore crusher-mobile crusher which is applied greatly in ore crushing industry.

mineral crusher and mineral grinding mill used in ore mining

Mineral Crusher

Mineral crusher is also called mine crusher. It is essential crushing machine in mines smelting and processing plants. Mine crusher is also used in old metal recycling.

Features:

• 1. It crushes the widest variety of scrap metal efficiently and inexpensively, such as iron ore, copper, manganese, chrome, gold, wolfram, Tin, Zinc etc.
• 2. Effective wear and maintenance prevention. The parts is wearable and the hammer includes chrome.
• 3. It includes safety unit and the adjustment devices of the discharging open. Solid pieces that cannot be crushed are removed during the crushing process without interruption.

Mines equipment supplier

SBM is a famous company of mineral crusher production devices in China. and supplies all types mine machines such as mine crushers, mine mills for mine ore mining, beneficiation, concentration and extract and purify. We hope our mine ore crusehr can do better for your mine business and wish we cooperate happily.

 

Quartz crusher:

Quartz crusher, or quartzite crusher is a major crushing equipment to break the raw quartzite rock into small particles, fine powder for glass industry and quartz aggregate production plant.
Quartz sand crusher is suitable for crushing materials with particle size more than 3mm. The quartz sand production line mainly includes vibration feeder, quartz crusher (jaw crusher, impact crusher, cone crusher etc.), vibrating screen, belt conveyer and other crusher equipment.

Silica sand crusher:

Silica sand crusher is widely used in silica sand quarry, sand & gravel mining. Silica sand crusher contains jaw crusher (rough crushing, middle crushing, fine crushing), impact crusher, cone crusher, hammer crusher etc. Silica sand crusher is widely used in mining, metallurgical, construction, chemistry, petrochemicals, transportation, energy, building materials industry, Stone crushers feature large crushing rate, high yield, equal product size, simple structure, reliable operation and easy maintenance, economic operating costs etc.
Silica sand, or silicon dioxide is widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgy, construction, chemicals, plastics, rubber, abrasives and other industrial. Common Specifications are as follows: 0.5-1.0 mm, 0.6-1.2mm, 1-2mm, 2-4mm, 4-8mm, 8-16mm, 16-32mm.

Marble crusher:

Marble crusher is the major crushing equipment to extraction limestone or to produce marble aggregate. Marble grinder is the widely used marble powder making equipment at present.
Our marble crusher and marble grinder contains jaw crusher, impact crusher, cone crusher, ball mill, trapezium mill, ultrafine mill etc. Marble rock is a kind sedimentary carbonate rock (like limestone, dolomite rock). The white marble is suitable for sculpture, the construction marble is suitable for building stone. The colorless marble rock is a very pure source of calcium carbonate, Finely ground marble or calcium carbonate powder is a component in paper, and in consumer products such as toothpaste, plastics, and paints.

Talc crusher :

Talc crusher and talc grinder is widely used in the talc mine. SBM is a major talc crusher and talc grinder mill manufacturer in China. The whole unit talc powder production line includes jaw crusher, impact crusher, cone crusher, ball mill, trapezium mill, ultrafine mill etc.
Talc, which has a reputation for talc powder, or talcum powder, is used in many industries such as paper making, plastic, paint and coatings, rubber, food, electric cable, pharmaceuticals, cosmetics, ceramics, etc.

Garnet crusher :

Garnet crusher and garnet grinder is the major crushing equipment in garnet mining and processing. The stone crusher can crush the garnet into particles less than 2mm, the garnet grinder mill can make garnet powder less than 200 mesh.
Garnet group includes a group of minerals like pyrope, almandine, spessartine, grossular, uvarovite and andradite. The garnet, as it is mined and collected, is crushed to finer grains; all pieces which are larger than 60 mesh (250 micrometres) are normally used for sand blasting. The pieces between 60 mesh (250 micrometres) and 200 mesh (74 micrometres) are normally used for water jet cutting. The remaining garnet pieces that are finer than 200 mesh (74 micrometres) are used for glass polishing and lapping.Garnet sand is a good abrasive and a common replacement for silica sand in sand blasting. River garnet, river sand garnet, rock garnet is widely distributed in America, China, western India, Australia. Africa, Brazil, Canada, Madagascar, Sri Lanka etc.

Barite crusher :

Barite crusher and barite grinder mill is widely used in barite mining and dressing plant. SBM Machinery can supply the contractors with barite mineral crusher and barite grinder mill to produce barite powder.
Most barite produced is used as a weighting agent in drilling muds. These high density muds are circulated down the drill stem and return to the surface between the drill stem and the wall of the well. Barite is also used as a pigment in paints and as a weighted filler for paper and cloth. It is the primary ore of barium. Barite's high density makes it opaque to x-rays. If it is given to a patient as a drink or enema it can be used to image the shape of internal organs by x-ray.
Sandstone crusher :

Sandstone (sometimes known as arenite) is a sedimentary rock composed mainly of sand-sized minerals or rock grains. Most sandstone is composed of quartz and/or feldspar.
Sandstone crusher is the major crushing machine to break large sandstone less than 2mm. SBM sandstone crusher contains jaw crusher, impact crusher, cone crusher, VSI crusher and so on.

mine car pusher

mine car pusher system

SBM mine car pusher system provides a positive drive for mine cars not only along a horizontal arcuate track section,, but also along an arcuate track section arranged on a downgrade or a moderate upgrade.

• SBM mine car pusher system on an arcuate track section, comprising drivers guided for longitudinal movement between the rails of the arcuate track section and spaced along the arcuate track section in two groups arranged side-by-side, the drivers of the respective groups being relatively staggered along the arcuate track section, and means for driving the two groups in mutually opposite directions whereby the mine car is engaged by the drivers of the two groups alternately and in succession.
• SBM mine car pusher system as claimed in Claim 1, in which said groups of drivers comprise driver carriages which are connected to each other and at one end of the arcuate track section are connected to said drive means.
• 3. SBM mine car pusher system as claimed in Claim 2 wherein the last of the two driver carriages of the two groups of carriages disposed at the end of the arcuate track section remote from the driving means are connected by a tension element extending around a reversing pulley mounted in a stationary position.
• 4. SBM mine car pusher system as claimed in Claim 3, wherein a tension element passes around a pulley at that end of the arcuate track section adjacent the drive means, said tension element connecting those carriages of the two groups of carriages which are next to the drive.

Mine car pusher is a pusher to push the mine car to move. There are three types of mine car pusher. They are spiral pusher, wire rope pusher and hydraulic pusher. Mine car pusher is widely used in kinds of mine and quarry mining process, such as limestone mining, granite mining, quartz mining, marble mining, coal mining, bauxite mining, feldspar mining, copper mining, etc.

INDUSTRIAL AND RAILROAD CATEGORY:

With roots deep in the San Juan Mining Region of
Colorado and a combined working experience of
over one hundred years, we know the importance
of finding economical solutions to material handling problems.

Melcher Machine Works, the experienced manufacturer
of both surface and underground rail haulage equipment
and materials handling systems. We manufacture every type
of rail equipment for mining, industrial and tourist
railroad usage.

DECORATIVE & COLLECTOR'S CATEGORY

1/3 To Full Size Cars
These Ore Car Replicas exactly follow the original design used in Colorado mines in the late 1800's. The detail is complete even to the foot operated hold down latch and 360 degree operating turn table which allows the car to dump in any direction. Wheels are reproductions of an exclusive curved five spoke cast iron design.  The main feature of the "scoop" type ore car was its "tilt" to allow loading by scooping into it-rather than shovel the "load" over the sides.  These replicas tilt and operate just like the originals allowing for a variety of attractive displays.

Today, original mining cars are nearly impossible to find and can sell for thousands of dollars. These high caliber mining car replicas are built to the original design standards by Melcher Machine Works of Durango, Colorado. These sturdy built pieces of rail equipment lend themselves to many opportunities in the realm of antique collecting, mining equipment and memorabilia, landscaping, home decorating, garden railroading and commercial retail display.

Contact Site: http://www.rockscrusher.com

Mine Car Theory and Mine Car used in Ore Mining

Mine Car Size

The size of mine cars may be determined by the physical conditions of the mine. Low-coal seams demand low height cars. Poor roof requiring timbering close to the track will often limit the width of the cars. The radius of the smallest curve will limit the length of the car. In low-coal mines, large capacity is obtained by increasing the length and width to counteract the low height. Also by using special designs, which permit low car bottoms. By the use of side and end boards, the miner can remove these boards to shovel coal from the end or side without interference. After which the boards are raised and a topping is placed on the cars. In mines where the physical conditions do not limit the car size, this is usually determined by the cars use. Anthracite mines employing loading chutes from breasts use high, large capacity cars. Mechanical loading demands the largest possible car consistent with haulage and loading conditions so as to reduce the number of car changes and time delay. When the car must be designed for the colliery, shaft size may limit the car length and width. When a new mine is opened, the car size is often chosen arbitrarily, subject to physical conditions as far as can be determined. The haulage curves, dumping devices, etc. are designed to accommodate the new mine car.

Wood or Steel

Mine car bodies may be built of Wood or steel, or may be a combination of both. Wooden cars are readily constructed, often being assembled in the shop by unskilled labor. In addition they have a certain flexibility, which gives them excellent riding qualities, and they are inexpensive to construct. All steel cars cost from 50 to 100 percent more to build than wooden cars but their longer life quite often offsets this initial disadvantage. Maintenance costs are estimated at one fourth of wooden cars. Also, for the same outside dimensions the steel car gives 10 to 20 percent more inside capacity. Steel cars have greater durability and can withstand shock that would crush wooden cars. When skilled labor is available, a bent steel car can be repaired and placed into service at a very low cost. Lower maintenance costs and greater capacity should reduce the cost of haulage when steel cars are used.

Wheels and Bearings

Wheel material may be either cast iron or cast steel. Cast iron wheels have a hard flange and tread that discourages turning on a lathe, so the wheels are used until a groove is worn in the tread and then discarded. Wheels of cast steel do not break as easy as cast iron and are one-third lighter in weight but wear more readily. They can be machined when they become grooved and this increases their service life. Manganese steel wheels are hard and tough and will out wear many other types. They cannot be turned on a lathe however, and do not have the scrap value of cast iron or cast steel. Wheel size has a bearing on car height. In low-coal mines, small diameter wheels are necessary. In high coal mines, the common diameter is 14 to 18 inches. Large wheels have considerably less friction on the track than smaller wheels and are preferable. Less friction means less wear for the same distance traveled and this means a longer life for the larger diameter wheel. On the other hand, the larger wheel adds more weight to the car, and gives additional height to the car without giving it additional capacity. Wheels may be termed “loose” or “tight” according to whether they turn freely on the axle or whether the axle turns with the wheel. The latter is railroad practice and demands the track be elevated on the curves to permit the outside wheel to travel around the curve without skidding. Where loose wheels are used, the axle is usually fixed in place on the car bottom. In the case of tight wheels, the axle rotates in bearings placed on the car bottom. Bearings may be of the plain or anti frictional type. In the plain bearing type, the wheel hub fits over the axle with only sufficient clearance to permit the use of a lubricant. Friction in a bearing of this type is sliding friction. Brass is usually used as a bearing to diminish wear to the axle. When the bearing would become worn or sloppy, the brass would be changed. With roller bearings, which are practically the only antifriction type used on mine cars, rollers are supported in a frame in such a manner that the shaft of the axle rotates inside of the bearing and the wheel hub rotates with the bearing. This type of bearing employs a rolling friction, which is up to 50 percent less than that of the plain bearing. Plain bearings are lubricated with heavy oil while roller bearings are lubricated with grease. The latter requires greasing every three and one half months compared to 24 days for the plain bearings. However roller bearings must be kept clean of dust. Dirt is easily attracted to the grease, which fills and damages the rollers and reduce their efficiency.

Body Designs

The end gate style of body design consists of a car with a gate hinged on a bar at one end of the car and with means of securing it in place. This type of car requires end tilting to be dumped and may be built either of wood or steel and is the most common in the anthracite field. The gate end is not as strong as the tight end and the sides will tend to spread open after time permitting spillage of fine coal onto the roadbed when the car is in motion. The coal might become crushed under the car wheels and increase wheel friction as well as contribute to the coal-dust hazard. Tight end cars have no gate but are tight on both ends, requiring a rotating car dump, which will turn the car upside down to remove the coal. Their construction is more substantial than the gate end car of the same size and material. They do not “leak” fine coal to any extent unless car maintenance is poor and allows cracks to appear in the bottom and sides of the car. They are likewise constructed either of wood or steel.

SBM is a professtinal mine car manufacturer and suppliers in China. We supply mine car,and we also can design mine car for your business. Buy mine car from SBM!

Contact Site:  http://www.rockscrusher.com