▎ 摘　　要

NOVELTY - The utility model belongs to graphene sieving equipment technology field, especially relates to a sieve of graphene flakes, the main structure comprises a screen, a top cover, a handle, a screen changing valve, screen, a chassis, a discharging and discharging, adopts sieve of high molecular weight polyethylene material. top cover, screen changing valve base and valve for analysis and ball milling, reducing weight of the graphene sieve, a sieve made of stainless steel to avoid adhesion of the graphene powder, capable of quickly separating the graphene powder and grinding ball and enables the graphene powder with different grain diameters; closed collecting graphene powder, the whole using process is carried out in a closed environment to avoid the graphene powder is exposed to air condition; it has simple structure, novel design, reliable principle, processing preparation cost is low and the practicability is strong, and the installing and detaching of convenient operation and maintenance, good stability and safety and environment-friendly use, and wide application range.