The customer belongs to a boiler company. Liming Heavy Industry has professional solutions for clean coal preparation process. LM1700 Vertical Mill is adopted in the project. In addition to meeting the capacity demand of coal grinding line, it is also specially equipped with safety and explosion-proof system to escort pulverized coal processing. In addition, the equipment has a drying heat source system, and the hot air directly contacts the materials in the mill, which has strong drying capacity and achieves the expected effect of customers.