►Coal Mill Introduction:
Coal mill is an important auxiliary equipment for coal-powder furnace, and it has three methods to crush the coal lump and grind them into powder,like crushing, impacting and grinding.
Air swept coal mill is the main equipment in cement plant for both drying and grinding of the powders. Compared with the ordinary ball mill, it has advantages of higher capacity, more convenient operation, safer usage, and more reliable performance.
►Working Principle:
Wind coal mill is a drying equipment,also having a function of grinding,whose working process is :through feeding device,the raw material is sent to the mill body;hot wind enter into the mill body therough blast pipe.With the mill  rotating,coal and hot wind go on heat exchange and the water is evaporated.While the coal is crushed and ground,appropriative induced draft fan send the crushed coal dust and gas out of the mill through the discharge device,however the coarser particles will pass through returning spiral and return to the mill body to continue next grinding.