▎ 摘　　要

NOVELTY - A graphene composite wave-absorbing material preparation device comprises support frame (1) and purification component arranged inside the support frame. The purification component comprises purifying tank (201), inflow pipe, first limiting valve, first flow meter, placement tank, liquid level meter, top end cover plate, water inlet pipe, air outlet pipe, feeding pipe, water pump, fixing plate, waterproof motor, waterproof protective cover, transmission rod, stirring plate, inclined notch, electromagnetic coil, heating coil, conical hopper, intercepting filter screen, elastic rubber ring, and pulling rod. The electromagnetic coil and the heating coil input end are electrically connected to external power supply output end. USE - The device is used for preparing graphene composite wave-absorbing material (claimed). ADVANTAGE - The device ensures purification of solution containing iron and cobalt. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a graphene composite wave-absorbing material comprising carbonyl iron-graphene composite; (2) preparation of the wave-absorbing material using the device; and (3) a coating agent comprising the graphene composite wave-absorbing material. DESCRIPTION OF DRAWING(S) - The drawing shows perspective view of Support frame (1) Purifying tank (201) Centrifugal tank (301) Recycling pipe (401) Freezing box. (601)