▎ 摘　　要

NOVELTY - The utility model claims a device for preparing graphene film, comprising a conveying pipe, a water inlet valve, a dosing device, a base, a waste water outlet valve, a water level observation window, a discharging port, a water return pipe, the conveying pipe is a cylindrical structure, the lower end of the plane plate is movably connected by interference fit. the water level observing window surface is circular, the bottom and the sealing cover by interference fit way movably connected, the beneficial effect of the utility model is provided with a dosing device, the tapered bucket placing material, adjustor adjusting the set quantity, the supporting rod and the opening amount, it can ensure the device production can accurately quantitative, so it can effectively improve the production efficiency, so that the yield can be further improved.