Coal mill capable of operating efficiently

The utility model relates to a coal mill capable of operating efficiently, which is characterized in that a wear-resistant layer is additionally arranged on the inner cylinder wall of the existing coal mill, and air coal is in direct contact with the wear-resistant layer when the coal mill is used, so that the wear speed of a mill cylinder can be effectively reduced, and the wear period of the mill cylinder can be effectively prolonged; the circulating air speed is reduced by increasing the ventilation area of the air ring of the existing coal mill, so that the scouring force is reduced, the abrasion period is further prolonged, the grinding through frequency of a mill cylinder is effectively reduced, and the condition of frequent shutdown maintenance is improved. The operation cycle of the mill is prolonged, continuous operation of the device is guaranteed, the production efficiency can be improved, and the production cost is reduced. 本实用新型涉及一种可高效运行的磨煤机，通过在现有磨煤机的内筒壁上增设耐磨层，使用时风煤直接与耐磨层接触，能有效降低磨机筒的磨损速度，继而有效延长磨机