Grinding device for preparing superfine particles

The grinding device comprises a hopper, a grinding cabin is arranged at a discharge port at the lower end of the hopper, a stirring mechanism is arranged at the discharge port of the hopper and comprises a rotating shaft rotationally connected to the upper side of the discharge port, a driving rod extending upwards is arranged on the rotating shaft, and the driving rod is connected with the grinding cabin. The rotating shaft is provided with stirring strips extending in the radial direction of the rotating shaft, when materials in the hopper are caked, the driving rod can be manually rotated, the driving rod drives the rotating shaft to rotate, and when the rotating shaft rotates, the stirring rods on the rotating shaft can stir the materials at the discharging port of the hopper so as to damage the caked materials and dredge the blocked discharging port. The stirring mechanism can be used for directly stirring materials at the discharge port of the hopper, the caked materials can be quickly and effectively d