▎ 摘　　要

NOVELTY - This utility model relates to graphene material preparation technology field, and claims a graphene material prepared by grading device, comprising a floor, said floor top part is fixed with a bracket; the top part of the bracket is fixedly installed with a penetrating and extending to the first impeller classifier of the bottom of the bracket, the top part of the bracket is fixedly installed with a penetrating and extending to the bottom of the bracket and the second impeller classifier classifier of the first impeller, the top part of the bracket is fixedly installed with a penetrating and extending to the bottom of the bracket and located on the impeller classifier classifier right second impeller. the graphene material prepared by grading device, solving the problem that the graphene material, after finishing preparing need to sieving the particles to obtain particles of uniform size, but now of graphene material prepared by grading device is easy to block in the feeding inlet, it will easily with dust produced when discharging, the problem of producing pollution to the surrounding air.