▎ 摘　　要

NOVELTY - The utility model belongs to the technical field of graphene powder preparation, especially a graphene powder preparation device, aiming at the existing graphene integrated crushing efficiency is low; the graphene powder is easy to be attached in the crushing box when crushing; it is not convenient to clean; the invention claims the following solution, comprising a crushing box; the top part of the crushing box is provided with a feeding box; between the feeding box and the crushing box is connected with the same feeding pipe; the feeding pipe is provided with a baffle; the bottom of the crushing box fixedly connected with with a motor; the output shaft of the motor is fixedly installed with a rotating rod, the outer side of the rotating rod is fixedly installed with a plurality of crushing knives; the outer side of the rotating rod is symmetrically and fixedly installed with two supporting rods; two supporting rods are provided with a scraping wall structure; the crushing box is provided with a primary filter screen and a secondary filter screen. The utility model can improve the graphene crushing efficiency, avoids the crushing graphene powder easily attached to the crushing box, convenient to clean.