▎ 摘　　要

NOVELTY - The utility model claims a preparation device of graphene, comprising a drying box; one side of the drying box is equipped with a hot fan; the top of the drying box is equipped with a top cover plate; the top end middle part of the top cover plate is equipped with a discharging cover through a connecting plate; the top of the discharging cover is equipped with a ball milling tank; the middle part of the top end of the ball milling tank is provided with a feeding hopper; the middle part of the drying box is provided with a drying cylinder; the bottom of the drying box is installed on the bracket. the top of the drying box of the utility model is provided with a ball milling tank; the graphite film can be separated graphene after crushing by ball milling tank and drying box; and the graphene can be dried; the functionality is increased; the integrated structure is convenient to use; and the floor area is small; the middle part of the drying box is equipped with a drying cylinder; and the bottom of the drying cylinder is rotatably connected with the second motor through a connecting shaft, so that it is convenient to control the drying cylinder to rotate; it can improve the drying efficiency and evenness of drying.