▎ 摘　　要

NOVELTY - The method involves pouring the graphene particles to be processed into a heating screening tray. The graphene particles are sorted according to the size through the screening, taking and drying device. The graphene is heated and dried through a heating device. Two heated screening trays are taken out through the automatic reclaiming device, and heated screening tray is removed to take out the dried graphite particles. The scraping device is started to scrape the graphene dust adhered to the inner wall of the tank to the bottom of tank and gather the fine graphene particles together. The plugging device is used for plugging when clogging occurs. The fine graphene particles inside the tank are discharged together with the graphene dust. The screening, taking and drying device includes a drying tank (1) and a tank cover (2) that is rotatably connected to the top of the drying tank. Two ends of two first springs far away are fixedly connected to the inner surface of the horizontal tube. USE - Method for drying graphene particle used in materials science, micro-nano processing, energy, biomedicine, and drug delivery. ADVANTAGE - The screening and layered heating of graphene particles of different sizes in the mixed graphene particles is realized, so as to avoid the problem of different sizes of graphene particles requiring different drying and heating times. The graphene particle dehydration effect is made better. The waste of energy is avoided. The production cost is reduced. The function of automatically retracting and removing the heating screen tray is realized. The efficiency of the discharging is greatly improved. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the external structure of the screening, taking and drying device. Drying tank (1) Tank cover (2) Exhaust fan (3) Air inlet pipe (4) Air outlet pipe (5) Heating controller (6) Motor control main switch (7) Placing plate (10) Discharging pipe (11) Valve (12) Platform (13) Fixing box (14) Arc plate (92) Hydraulic telescopic rod (155) Hydraulic control system (156) Lantern ring (157) Case (162)