Coal mining process

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Author: Admin | 2025-04-28

The hardness of coal itself is not high. We mainly provide equipment for coal mines crushing production lines.The complete process includes washing coal of soil and rock, crushing and screening it into graded-sized chunks, dewatering, drying, stockpiling grades, and preparing it for transport to market. Coal Processing methods 1. Coal Crushing & ScreeningThe mixed materials with different particle sizes are divided into various particle poles by the screen surface with holes, and the coal lumps are sieved by dry or wet sieving. The selected coal pieces need to be pulverized to a certain particle size to pulverize large pieces of material into small particles.2. Coal washingCoal washing process is an indispensable process of coal deep processing. The coal directly mined from the mine is called raw coal. Raw coal is mixed with many impurities in the mining process, and the coal quality is also different. Coal washing process is an industrial process to eliminate raw coal impurities or classify high-quality and low-quality coal.3. separationUsing the different physical and chemical properties of coal and other substances, the impurities mixed in the raw coal are treated mechanically in the coal preparation plant, and the treated clean coal is divided into products of different qualities and specifications. Usually, the coal process is divided into jig gravity separation, heavy medium, and flotation separation.4. Coal Dewatering process If it is thermal coal, the sorting has already met the requirements. At this time, the washed clean coal can be dehydrated into the coal storage bunker. Then the produced wastewater is concentrated and precipitated by thickener. The coal slime may enter the tail coal bunker and be stacked in the open air, and the clean water can be used for circulating water. Coal Washing Process Plant 1. Coal Washing Plant (1). The excavator or loader feeds raw

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