▎ 摘　　要

NOVELTY - ystem of the utility model claims a reduction method for preparing graphene powder, belonging to the technical field of preparation of graphene. comprising a reduction reactor, a reduction reactor upper part is connected with the condenser, the reduction reactor through the lower pipeline is connected with the first level centrifuge, the first level centrifuge through pipeline connected with the two-stage centrifuge, two-stage centrifuge is connected with the freeze dryer through pipeline. The utility model claims a redox method preparation system of graphene powder, strong practicability, simple equipment, convenient operation, high safety coefficient, preparation of graphene has good dispersibility, low degree of stacking, is not easy to gather, can be applied to large scale industrial production.