Grinding door cover structure of cement experiment small mill

The utility model discloses a mill door cover structure of a small mill for cement experiments, which belongs to the technical field of mill door covers and comprises a small mill barrel mounted on a frame, a mill door is arranged on the top side of the small mill barrel, a mill door cover is mounted on the mill door, connecting tables are arranged on two sides of the mill door and are stepped, and the mill door cover is mounted on the mill door. A discharging plate is installed on the third step face, a plurality of sets of discharging holes are evenly formed in the top side of the discharging plate, clamping ends are arranged on the two sides of the bottom of the discharging plate and the two sides of the bottom of the grinding door cover correspondingly, the clamping ends are connected with limiting grooves in the top side of the connecting table in a clamped mode, and each clamping end comprises a trapezoidal clamping base and a spherical clamping head. According to the grinding door cover structure of th