Coal Mill is major equipment of cement plant and used for drying and grinding coal. The equipment is mainly consisted of feed device, main bearing, rotating parts, drive device, selling device, high-voltage start-up device and lubrication system. Working Principle The raw material is fed into mill by feeding equipment. The hot wind enters into the mill by inlet end. As the mill cylinder rotates, the coal and hot air exchange heat in the mill. The coal is crushed and grinded in the mill. When the coal is being grinded, the powder is brought out of the mill by the hot air going through the mill. APPLICATIONS: 1. Silicate 2. Building and Refractory 3. Fertilizer and Metallurgy 4. Glass Ceramics 5. Milling ADVANTAGES: 1. Reasonable Structure 2. High Grinding Efficiency Advantages of Our Equipments and Services: 1. Quality Certification. 2. Competitive Price. 3. Quality guarantee for 1 year, and we provide spare parts at a low price. 4. We have a team of specialists to design machines as your request, and engineers to help with installation freely. Minggong offers a wide variety of modular and portable crusher units specifically design to meet your particular crushing needs.