subject: Three Main Kinds Of Coal [print this page] In order to use coal more rationally, efficiently and effectively, the coal need to be processed and crushed into different sizes, 0 ~ 25 mm particle size for coal gas stove , 25 ~ 8 mm for steam locomotive, 25 ~ 6 mm for the industrial furnace, and coal power plant requires grain coal of 0 ~ 25mm.
The general hardness of coal is 1-4. After coarse crushing by jaw crusher, fine crushing by hammer crusher, and sieved by vibrating screen, coal can be processed and crushed into different size of the requirements. ZY jaw crusher, impact crusher for coal crushing have been widely used in the coal industry and mining industry, for its high and unique quality. They can crush coal at large quantity and high efficiency. In addition, hongxing vertical shaft impact crusher can crush coal into much smaller sizes to meet specific requirements.
Large coal enterprises attach much importance to crushers' capacity, quality, maintenance and the cost-effectiveness in the long term. ZY track mobile crushing plant minimizes the equipment downtime and integrates the coal conveying and crushing, thus greatly reduces the use cost. It is favored by large coal enterprises, especially coal mine, as it meets their requirements for high capacity and efficiency processing of the coal.
Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. Usually, 1.3 ton coking coal can process 1 ton coke? Coking coal is the fuel source for steelmaking and the major additive in steel industry. Being regarded as the "main food source of steel industry", coking coal is one of the strategically important materials in the market of raw materials around the world.
Anthracite is also called white coal or red coal, it is of high coallificaton degree, high carbon content, less-ash, lack of water and high heat. Smoke-free lump coal is mainly for fertilizer (nitrogenous fertilizer, synthetic ammonia), ceramics, forging and manufacturing industry; while fine anthracite is mainly for BF pulverized coal combustion (fine coal injection in BF? includes anthracite, meager coal, lean coal and gas coal).
Steam coal can be seen in generating electricity, locomotive and boiler combustion. It is mainly used in power making; about one third of the whole coal is used to make power. Secondly for steam locomotive. This accounts for 2%. Thirdly for building materials. For example, in cement, glass, brick and tile(10%). Fourthly it is used as fuel in industrial boilers. This part uses 20% coal. Lastly metallugury uses 1%.
