The double-inlet and double-outlet coal mill is specifically used for coal pulverization in power plants and is a direct-fired coal mill (also known as BBD-type coal mill). It is mainly used to match large thermal power plant boilers, serving units of 100MW, 200MW, 300MW, and 600MW. It can also be used in chemical, building materials, and phosphate industries as a pulverizing device. Currently, specifications such as 3854, 4060, 4360, 4760, and 4772 are available, with a coal powder output range of 52-105 tons per hour.