Solvent circulation storage tank for packaging composite film flexographic printing

The utility model discloses a solvent circulation storage tank for packaging composite film flexographic printing, which comprises a tank body and a base, a grid plate is arranged on the top surface of the base, the grid plate is of a hollow structure, the tank body is placed on the grid plate of the base, a cover body, an air outlet hole and a material supplementing port are arranged at the top of the tank body, the material supplementing port is connected to an outlet of a solvent supplementing pump through a pipeline, and the solvent supplementing pump is connected with the air outlet hole. A liquid outlet is formed in the position, close to the bottom, of the tank body, the liquid outlet is connected to an inlet of the solvent conveying pump through a pipeline, and the tank body, the solvent supplementing pump and the solvent conveying pump are all connected with an electrostatic elimination device. The liquid level of the solvent in the tank body can be detected, the solvent supplementing pump automatica