Grinding device for polyanionic cellulose production

The utility model relates to the technical field of cellulose grinding, and discloses a grinding device for polyanionic cellulose production, which comprises a grinding box and four groups of supporting legs fixedly mounted on the lower surface of the grinding box, the inner wall of the grinding box is fixedly connected with a filter plate, a material guide frame and a grinding frame from top to bottom. According to the grinding device for polyanionic cellulose production, the output end of a servo motor is arranged to drive a driving rod and a rolling shaft to rotate, so that a driving ring can conveniently apply acting force to a driving shaft; the driving shaft can conveniently drive the two groups of moving rods, the crushing plate and the crushing teeth to do reciprocating lifting motion in the vertical direction relative to the grinding box and the fixed cylinder, so that the large-particle-size polyanionic cellulose can be conveniently crushed, and the polyanionic cellulose can be more effectively grou