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coal processing equipment


What is coal

Coal is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus and other elements. The carbon, hydrogen, oxygen, three sum more than about 95% of the organic matter is a very important source of energy, at the same time it is important raw material for metallurgy and chemical industry. It has some types of lignite, bituminous coal, anthracite and semi-anthracite. Coal is that as a non-renewable resources. Coal (commonly known as coal) is what the ancient plants buried in the ground and has experienced the complete biochemical and physical and chemical changes gradually formed a solid combustible organic rock. Solid flammable organic rock what is mainly by bio-chemical effect and buried by the geological effects after the change and then finished it.

Processing technic

coal Processing echnic Chunks of coal through the silo by the vibrating feeder evenly sent to a break (jaw crusher) for primary crushing, and then the coal after coarse crushing by a belt conveyor sent two broken (impact crusher or cone crusher machine) for further crushing;

The coal after crushing by a belt conveyor to vibrating screen for screening, the screening of several different sizes, different specifications of the coal which can meet the size requirements will sent to the finished product stockpile by the belt conveyor;

The coal that does not meet the size requirements will send to the crusher or cone crusher broken again by a belt conveyor, and formed the closed-loop recycled in many times.

Finished size can be combined and graded in accordance with the needs of users. In order to protect the environment, it can be equipped with auxiliary coal processing dust removal equipment.

The necessary equipment:

coal jaw crusher

Coal Jaw Crusher is mainly used for medium-grained ore and bulk material crushing, breaking strength is not greater than the 320Mpa of the materials. It is divided into coarse and fine crushing two. Feed particle size of 125mm ~ 750mm, is the first choice for primary crushing equipment. It is widely used in mining, metallurgy, building materials, road, railway, water conservancy and the chemical industry and other industries. Coal Jaw Crusher working principle: The broken way of Jaw Crusher is bend moving extrusion type what motor driven belt and pulley and through the eccentric shaft make the movable jaw up and down movement. When the rise of the moving, jaw angle between toggle plate and moving jaw becomes larger, thus promoting the movable jaw plate close to the fixed jaw plate, at the same time the material being squeezed, rubbing, grinding, and multiple broken. When moving jaw downstream, angle become small between toggle plate and moving jaw, the movable jaw plate under the lever action of the spring move away from fixed jaw board, at this time the broken material discharged from the crushing chamber under the mouth. In the wake of continuous rotation with the motor, the movable jaw of jaw crusher for periodic crushing and nesting to achieve mass production.

The performance characteristics of the coal Jaw Crusher: 1, Large crushing ratio, uniform particle size; 2, A simple structure, reliable operation, low operating costs; 3. Stand-alone energy-saving 15% to 30%, more than double the system energy;4. The low noise, less dust; 5, The discharge opening adjustment range is big, which can meet the requirements of different users.

Coal Impact Crusher

The performance characteristics and advantages of the coal Impact Crusher: 1. Multi-cavity evenly broken that is suitable for crushing hard rock; 2. Low feed port that to facilitate the production line layout and increase the feed size; 3. New wear-resistant materials board hammer, counter board and liner have long life; 4. High chromium plate hammer and unique counterattack linings that especially suitable for hard rock crushing; 5. Hard rock crushing, energy efficient; 6. All the whole board structure makes discharging present a small particle size and cubic form, no inner lines; 7.The product shape is cubic, and particle size adjustable discharge; 8. Simplify the crushing process; 9. Hydraulic opening that ease of maintenance and replacement of wearing parts; 10.Big feeding mouth, high crushing chamber that adapt to high material hardness and block degree, the product powder is small.

coal impact crusher

The coal Impact Crusher is a kind of break machine that use impact energy to break the materials. When the machine working, driven by the motor, the rotor high-speed rotation, the material into the active region of the plate hammer, Impact Crusher board hammer on the rotor, and then was thrown to the counter-attack on the device again broken, and then from the counter Liner bounced back into the active region of the plate hammer to re-broken, this process is repeated, the material descending into one, two, three, repeated crushing counterattack cavity, until the material is broken to the desired particle size, from the discharge port. Adjustment the gap between the counterattack frame and the rotor can be achieved the purpose of changing the material's grain size and shape.

coal Raymond Mill

Coal Raymond Mill When coal Raymond Mill working, the material what needs to crush from the feed hopper of the machine casing on the side of adding machines rely on hanging in the host plum rack roller device turn around the vertical axis, while itself rotation. Due to the function of centrifugal force when it is a rotation, roll grinding out swinging, pressed on the grinding ring, so that the shovel blade scoops the materials sent to the grinding roller and the grinding ring and then get the purposes of crushing materials by grinding roller's roll and grind. Winnowing process: materials after grinding, the fan will wind White chassis, blowing powder, placed above the grinding chamber of the analyzer for sorting, fine through coarse material to fall into the grinding chamber to re-grinding, fine with the air flow into the cyclone collector collected powder outlet discharge is refined to meet the specifications. Romantic whirlwind collection of the top of the return air duct back into the blower, the wind path is circular, and the flow in the vacuum state, the air volume of the circulating air duct to increase some by fans and host the middle of the exhaust pipe to discharge into the small cyclone collector , for purification.

Coal Raymond Mill Advantages: 1, three-dimensional structure, small footprint, complete sets of strong; 2, refined powder fineness; 3, transmission smooth, reliable operation; 4, the whole high wear resistance, long service life; 5, centralized control, achieve unmanned operation basically.

coal High Pressure Suspension Grinding Mill

coal High Pressure Suspension Grinding Mill In the mainframe of coal High Pressure Suspension Grinding Mill mainframe, roll grinding hanger on fastening a 1000-1500 kg powered pressure spring. When the machine start working, grinding roll around the spindle, and under the function of high pressure spring and centrifugal force, keep grinding ring rolling and the rolling pressure is 1.2 times higher than the Raymond Mill in the same dynamic conditions so the yield is much higher. When the grinding material into the grinding chamber, the shovel blade scoop up it into the grinding roller and grinding ring to grind. The powder after grinding with the blower circulating air into the analyzer, qualified with the powder-gas inflow the whirlwind plot of powder become to the finished goods, but the charged particles tablets to regrinding. The circulating wind return air blower to repeat the above process, and the remaining wind entered the bag filter to purify. When the grinding roller and the grinding ring to reach a certain wear and tear, adjust the length of the pressure spring to maintain constant grinding pressure between the roller and grinding ring, in order to ensure stable production and fineness.

High Pressure Suspension Grinding Mill performance characteristics: 1.A unique design that compared with other mill output increased by 20-30% in the same dynamic conditions, the grinding roller grinding pressure of the material is increased in the high-pressure spring under 800 - 1200kg; 2. The materials that Mohs hardness of less than 9.3 mineral can be processed grinding; 3,The final endpoint has a wide range of particle size, the most coarse particle size of up to 0.613 mm (30 mesh) and generally up to 0.033 mm (425 mesh) and the small number of materials' particle size can get up to 0.013 mm (1000 mesh); 4, The effect of dust removal fully meet the national standards for dust emissions; 5, The analysis of machine is easy to adjust;, 6. Grinding device with use of overlapping multi-level seal has a good seal performance.

Coal Grinding Mill Applications:

Coal Grinding Mill Application

Coal is an important energy, and also the important raw material for metallurgy, chemical industry. It is mainly used for combustion, coking, gasification, pyrolysis and hydrogenation liquefaction.

1, Combustion. Coal is an important human energy resources that any coal can be used as industrial and domestic fuel.
2, Coking. Coal in the dry distillation furnace, isolated from the air heating of organic matter in coal with increasing temperature gradually broken down, volatile substances escape to the gaseous or vapor state, become a coke oven gas and coal tar, and the non-volatile solid residual material is coke. Coke oven gas is a fuel, and also is an important chemical raw materials. Coal tar can be used for the production of chemical fertilizers, pesticides, synthetic fibers, synthetic rubber, paints, dyes, pharmaceuticals and explosives. Coke is mainly used in blast furnace iron making and foundry and it is also being used to manufacture nitrogen, calcium carbide. Calcium carbide is a synthetic chemical products that composed of plastics, synthetic fibers, synthetic rubber and other materials.
3, Gasification. Gasification is the transformation can be used as industrial or domestic fuel and chemical synthesis raw gas.
4, The low temperature carbonization. Coal or oil shale in the preparation of low temperature carbonization and temperature around 550 ℃,then you can get low temperature tar and low-temperature coke oven gas. The low-temperature tar can be used for the preparation of advanced liquid fuels and chemical raw materials.
5, Hydro-liquefaction. Coal, catalyst and heavy oil are mixed together under heat and pressure so that the organic matter destruction in the coal conversion and hydrogen role for low molecular weight liquid and gaseous products, further processing can get gasoline, diesel and other liquid fuels. Hydro-liquefaction of raw coal is mainly by lignite, long flame coal and gas coal-based.

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