Rapid drying device for graphene composite material

The graphene composite material rapid drying device comprises a drying tower, a vibration screening groove and a circulating pipe, the top and the bottom of the drying tower are provided with a feeding port and a discharging port respectively, the two ends of the circulating pipe are connected with the feeding port and the discharging port respectively, and the feeding port and the discharging port are each provided with a negative pressure generator; the vibration screening tank is connected to the vibration device, is mounted in the drying tower, is positioned below the feeding hole and is used for vibrating materials in a vibrating manner; a plurality of hot air openings are formed in the inner side wall of the drying tower and connected to a hot air generator. By arranging the circulating pipe and the negative pressure generator, the poured graphene material forms a reciprocating circulating drying structure in the drying tower, the drying uniformity and completeness are effectively guaranteed, meanwhile,