▎ 摘　　要

NOVELTY - The utility model claims a freeze drying device for graphene powder coating production, comprising a drying box; two sides of the inner wall of the drying box are equipped with a U-shaped clamping plate; the U-shaped clamping plate is provided with a tray; the bottom of the inner wall of the tray is equipped with cotton gauze; one side of the inner wall of the drying box is equipped with a humidity sensor; the other side of the inner wall of the drying box is equipped with a ventilating pipe; the upper surface of the drying box is equipped with a heat preservation tank; one side of the outer wall of the drying box is equipped with a refrigerating box; the refrigerating box is equipped with a refrigerating device; the top of the inner wall of the drying box is equipped with an air outlet pipe; the other end of the air outlet pipe passes through the refrigerating box and is connected with the air conveying pipe through the joint; the other end of the air conveying pipe passes through the insulating tank; the insulating tank is internally provided with a fan B. The utility model is set by a series of structure, which is convenient for freezing and drying the graphene powder raw material; the operation is simple and the practicability is strong.