coal processing plant

Description of coal:

Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. The content summation of the carbon,hydrogen and oxygen can be reach to 95% of the organic.Coal is an important source of energy for the generation of electricity worldwide,as well as a source of chemical industry and metallurgy. coal can be divide into lignite, bituminous coal, anthracite, semi-anthracite .they are non-renewable resource.At various times in the geologic past, the Earth had dense forests in low-lying wetland areas. Due to natural processes such as flooding, these forests were buried under the soil. Under high pressure and high temperature, dead vegetation was slowly converted to coal. As coal contains mainly carbon, the conversion of dead vegetation into coal is called carbonization.

Processing technology of coal:

The material in the hopper will fall down into jaw crusher evenly through the vibrating feeder.After primary crushing,via belt conveyor,the material will feed into impact crusher or cone crusher to crush secondarily.By vibrating screen,crushed material is driven to make movement and be separated.thus the qualified material are discharged to finished product pile,while those unqualified are back to repeated crush until they meet the required size.This processing technology can achieve combination and classification according to the customers’ protect the environment,the product line can equip with a dust equipment.

Application of coal:


Coal is a kind of important energy ,as well as important material for metallurgy and chemical is mainly used in Combustion, coking, gasification,low temperature distillation, hydrogenation liquefaction,etc.1,Combustion: Coal is an important energy resource for mankind, all kind of coal can be used as industrial and domestic fuel. 2.coking: putting the carbonization of coal into the furnace, heating with air isolation , the organic matter in the coal will be decomposed gradually with increasing temperature.During this processing, volatile substance escape in form of gaseous or vapor , becoming the coke oven gas and coal tar,while non-volatile matter left to be coke. Coke oven gas is not only as a kind of fuel, but also as an important chemical raw materials. Coal tar can be used for the production of fertilizers, pesticides, synthetic fibers, synthetic rubber, paints, dyes, pharmaceuticals, explosives and so on. Coke is mainly used in the blast furnace and foundry, and also can be used to make fertilizer, calcium carbide,which is a chemical products combined by plastics, synthetic fibers, synthetic rubber .3, gasification. Gasification is a method that change the coal into the gas which can be used as fuel for industrial or commercial raw materials and chemical synthesis.4 low temperature carbonization: it can be prepared to produce low-tar and low-temperature coke oven gas that can be used to produce low-tar advanced liquid fuels and as a chemical feedstock.when placing the coal or oil shale in a temperature of about 550℃.5 liquefaction:mixing coal, with heavy oil and catalyst together ,under the elevated temperature and pressure, the organic matter in the coal will be destructed,than working with the hydro y. the organic matter change into liquid and gaseous products of low molecular weight.With further processing,they can be as gasoline, diesel and other liquid fuels. Raw coal for liquefaction aways are lignite, long flame coal, gas coal-based


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