▎ 摘　　要

NOVELTY - The utility model claims a grinding device for preparing graphene, belonging to the technical field of graphene preparation, comprising a box body, a driving mechanism and a fan, middle position of left and right sides of the inner wall of the box body is welded with a supporting frame, one end of the supporting frame far away from the box body is movably connected with a round roller, one side of the supporting frame far away from the round roller fixedly connected with with a wind cover, middle position of the bottom of the box body is provided with a discharging port, the left and right two sides of the top of the discharging contact are connected with a scraping block, the left and right sides of the lower surface of the bottom of the box body are connected with a collecting mechanism, one side of the bottom frame far away from the discharging port is welded with a fan. The utility model is provided with two groups of circular rollers on the inner wall of the box body, and driven by the motor, the two sides of the bottom frame are installed with fans, the fan is connected with the air outlet cover installed on the side of the supporting frame, the air and oxygen content of the position of the round roller and the graphite block contact increased, realizing the graphene preparation effect and the preparation efficiency.