▎ 摘　　要

NOVELTY - The utility model claims a cranoglanis for preparing multi-layer graphene, comprising device for placing the graphite solution titanium box, set in the titanium box and there is a roller wheel of the gap between the titanium box bottom, drive roller wheel rolling grinding graphite on the titanium box driving mechanism, a potentiometer. and a graphene ultrasonic crude preparation processing of the ultrasonic instrument, the roller shaft of the roller wheel connected with the driving mechanism, the anode and the titanium box electrically connected with the joint, the cathode is connected with the roller wheel of the potentiometer is electrically connection, the ultrasonic instrument further stripping forming product has less number of layers of multilayer graphene through ultrasonic wave; at the same time, it can prevent the graphite or graphene is adhered on the surface of the roller wheel or titanium box, preventing the multilayer graphene bonding phenomenon, the device greatly improves the production efficiency of the graphene, and improves the purity and quality of the graphene.