▎ 摘　　要

NOVELTY - The utility model claims a graphite alkene powder preparing device, comprising a mechanical stripping unit, distilling and concentrating unit and a freeze drying unit, the mechanical peeling unit, distilling and concentrating unit and freeze drying unit are orderly connected through pipeline, the mechanical peeling unit comprises orderly connected of the ball mill, the emulsifying device and the ultrasonic device. The utility model claims a preparation method of graphene device, combined milling cutting, emulsifying, ultrasonic device, can efficiently and cleaning the graphite powder to prepare graphene two-dimensional nano-powder through the process to prepare the graphene has a thin thickness. the specific surface area is large, complete crystal structure, the size of the two-dimension nanometre sheet is adjustable and controllable, so it avoids the use of strong acid and strong alkali and high temperature and high pressure and severe process conditions, low cost, high yield, and is suitable for large scale preparation of high quality graphene two-dimensional nanometre powder.