▎ 摘　　要

NOVELTY - The utility model claims a damping column type coating device, comprising: and the horizontal plane is provided with an included angle of the bottom plate, namely the bottom plate is inclined fixed relative to the horizontal plane; a side plate, the side plate comprises a front side plate set in front of the bottom plate and a rear side plate set behind the bottom plate; a first guide roller set at one end of the bottom plate; a flexible pad paved on the upper surface of the bottom plate; a bottom plate; a side plate; the first guide roller and the flexible pad form an open groove for containing coating; a damping column device is installed in the open groove; a coating roller for coating is arranged above the silo; base material feeding roller and receiving roller traction through the coating gap; the damping column coating device provided by the utility model by adding damping column in the groove liquid the transverse flow, reducing liquid level difference; at the same time, the guide roller is provided with a water inlet hole capable of effectively adjusting the temperature in the coating device; It can effectively reduce the surface tension of the graphene oxide slurry by increasing the temperature, so as to reduce the liquid level height difference.