▎ 摘　　要

NOVELTY - The method involves extruding the graphene powder from a filter plate (4) by grinding, and then mixing with the spray-shaped auxiliary material. USE - Preparation method of graphene mixed powder. ADVANTAGE - The method enables accelerating dispersion of graphene, thus reducing agglomeration of graphene. The method allows auxiliary materials spray to be more easily adsorbed on the graphene powder, so as to auxiliary materials mixed before the graphene agglomersation, thus mixing more uniformly, and other auxiliary materials to be mixed uniformly in advance, and simultaneously spraying and graphene powder mixing, thus improving the uniformity of the mixing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation device of graphene mixed powder. DESCRIPTION OF DRAWING(S) - The drawing shows a longitudinal sectional view of the preparation device of graphene mixed powder. Feeding port (1) Spiral pushing chamber (2) Grinding chamber (3) Filter plate (4) Mixing chamber (5) Discharging port (6) Spiral propeller (7) Ball milling medium (8) Spherical grinding head (9)