▎ 摘　　要

NOVELTY - The system has a suction filter device (2) that is arranged above a graphene container (1), and includes a suction filter port (21) which is arranged up and down opposite to a container opening (11). The suction filter port is provided with several suction filter holes. The suction filter port contacts or be close to the liquid surface of a graphene solution (100). A suction filter substrate (3) is a membrane with pores. A transmission device (4) that includes several driving wheels (41, 42) for enable the suction filter substrate to pass between the container opening and the suction filter port and move continuously. A graphene in the graphene solution is coated on the surface of the suction filter substrate under the action of the suction filtration device to form a graphene film (200) in the process of moving. A heating device (5) is used for drying the graphene film on the suction filter substrate. USE - System for continuous preparation of graphene film use in aerospace and mobile phone computer field. ADVANTAGE - The system solves the problem that it is difficult to realize large area and batch preparation in the production process of graphene film. The graphite flakes with a lower degree of exfoliation tend to deposit on the bottom of the solution, and the graphite flakes with a lower degree of exfoliation are prevented from being coated on the suction filter substrate during the suction filtration process, so that a higher quality graphene film is obtained. The transmission wheel is used to drive the continuous movement of the suction filter substrate to realize the continuous batch preparation of the suction filter graphene film and the preparation of a large area graphene film. The electrical conductivity of the graphene film is further improved, and the conductive graphene film is continuously produced in batches, which greatly simplifies the production process of the conductive graphene film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for continuously preparing graphene film by using the system. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a system for continuous preparation of graphene film. Graphene container (1) Suction filter device (2) Suction filter substrate (3) Transmission deviceThe system has a suction filter device (2) that is arranged above a graphene container (1), and includes a suction filter port (21) which is arranged up and down opposite to a container opening (11). The suction filter port is provided with several suction filter holes. The suction filter port contacts or be close to the liquid surface of a graphene solution (100). A suction filter substrate (3) is a membrane with pores. A transmission device (4) that includes several driving wheels (41, 42) for enable the suction filter substrate to pass between the container opening and the suction filter port and move continuously. A graphene in the graphene solution is coated on the surface of the suction filter substrate under the action of the suction filtration device to form a graphene film (200) in the process of moving. A heating device (5) is used for drying the graphene film on the suction filter substrate. (4) Heating device (5) Container opening (11) Suction filter port (21) Driving wheel (41, 42) Graphene solution (100) Graphene film (200)