▎ 摘　　要

NOVELTY - The device has a clamping plate (15) that is fixedly installed on the top of a movable block. An electric push rod (16) is fixedly installed on the left and right sides of the top wall of the inner cavity of a grinding box (3). The bottoms of the electric push rods are fixedly connected with a moving plate (17). A second motor (18) is fixedly installed on the bottom of the moving plate. A grinding disc (19) is fixedly installed at the output shaft of the second motor. A water tank (20) is fixedly installed on the top of the grinding box. The bottom of water tank is fixedly installed with a water outlet pipe (21) that penetrates and extends to the inside of the grinding box. The bottom of the water outlet pipe is fixedly installed with a shunt pipe (22) fixedly connected to the moving plate. A water pipe (23) is fixedly installed at the bottom of the movable plate. A spray head (24) is fixedly installed at the bottom of the water pipe. USE - Graded grinding and crushing device for graphene production. ADVANTAGE - The device achieves the effect of graded grinding and avoids to grind graphene powders of different thicknesses. DESCRIPTION OF DRAWING(S) - The drawing shows a structural view of the graded grinding and crushing device for graphene production. Grinding box (3) Clamping plate (15) Electric push rod (16) Moving plate (17) Second motor (18) Grinding disc (19) Water tank (20) Water outlet pipe (21) Shunt pipe (22) Water pipe (23) Spray head (24)