▎ 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 stripping unit comprising a ball mill and ultrasonic device are orderly connected through the pipeline, the ultrasonic device comprises an ultrasonic wave generator and an ultrasonic groove, the ultrasonic wave generator is connected with the ultrasonic groove. The utility model claims a device for preparing graphene, combined ball milling, sonication, stirring, heating, decompressing, distilling and separating, it is energy-saving, efficient cleaning of the graphite powder to prepare graphene nanometre powder, stirring and ultrasonic device are combined, it can be separately emulsified stripping and then performing ultrasonic stripping, also can be emulsified and stripping and ultrasonic stripping at the same time stripping efficiency, saves time and avoids the use of strong acid and strong alkali and high temperature and high pressure and severe process conditions, low cost, the yield is high, and it is fit for graphene nano-powder of scale preparation of high quality.