Crushers and Mills Used in Coal Powder Plant

Coal mill plays an important role in the coal-fired power plant. 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 pulverizes or micro powder grinding mills pulverizes the coal to particles. The air flow is fed through the mill with the purpose of heating and lifting the coal particles out of the coal mill and into the boiler furnace. 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 pulverize to grind the coal.

Coal Crusher is acknowledged in coal processing industry for a long time. Hongxing Machinery has many years manufacturing experience in coal crushing plant (coal crushing process, washing plant and conveyor equipment). Hongxing Machinery 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, Hongxing crushers are used in a wide variety of material reduction and processing applications in 100 countries around the world. As coal powder is the most important fuel in the power plant, the plant owners need coal mill or coal pulverize to grind the coal to micro powders. Raw coal (crushed) is fed through hopper at the top of the coal pulverize 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 classifying machine. In the coal crushing plant, coal crushing can resize the coal stone so that it can be easily handled and processed. For the Mesh hardness of coal is usually under 5, the miners can use , JC jaw crusher, , and hammer type crusher etc. to handle it. After the coal has been crushed, we need screening equipment to grade the coal by size and then transport the coal via conveyors. In this process, dewatering screen is optional to remove water from the product.