Medium-speed mill direct-blowing pulverizing system for coal-fired power plant

The invention belongs to the technical field of coal-fired power generation, particularly relates to a medium-speed mill direct-fired pulverizing system for a coal-fired power plant, and provides the following scheme aiming at the problems that when an existing medium-speed mill pulverizing system is used, manual feeding is generally adopted, the operation is slow, time and labor are wasted, and meanwhile the grinding efficiency is low. An operation table is fixedly installed at the top of the box body, an annular protection plate is fixedly installed at the top of the operation table, a moving roller is slidably connected to the operation table, an air guide groove is formed in the top of the moving roller, an air guide mechanism is arranged in the air guide groove, and a fixing plate is fixedly installed on the inner side of the annular protection plate. A second motor is fixedly installed on the top of the fixing plate, a sleeve is rotationally connected to the fixing plate, and the sleeve is in transmissi