▎ 摘　　要

NOVELTY - The device has a polishing box assembly (100) and a multi-size limit component. The multi-size limit component is provided on the left side of the inner cavity of the polishing box assembly. The right side of the multi-size limit assembly is provided with a maintenance and polishing assembly. A dust reduction component (400) is arranged between the maintenance and polishing component and the multi-size limit component. The inner cavity of the grinding box (101) is provided with a hollow cavity (104). A liftable support seat is provided inside the discharge port. USE - Efficient and good-quality graphite grinding device for graphene preparation. ADVANTAGE - The graphite grinding device can carry out maintenance work on the grinding disc to prevent grinding debris from adhering to the surface of the grinding disc and graphite ball, and while the grinding operation is in progress. The graphite grinding device can reduce the pollution to the surrounding environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphite polishing device with high efficiency and good quality for graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the efficient and good-quality graphite grinding device for graphene preparation. Polishing box assembly (100) Grinding box (101) Hollow cavity (104) Polishing disc (310) Dust reduction component (400)