Vacuum degassing tank

The invention discloses a vacuum degassing tank which mainly comprises a base, a tank body, a vacuum pump, a motor, a screw pump and an end cover, the motor is connected with a driven wheel through a belt, a main shaft is fixed on the driven wheel, and the main shaft extends into the tank body from the rear of the tank body and is connected with a centrifugal disc; a feeding port is formed in the right side of the tank body, a feeding pipe is arranged in the tank body, one end of the feeding pipe is connected with the feeding port, the other end of the feeding pipe is bent by 90 degrees towards the centrifugal disc and is connected with a feeding injector head, a discharging port is formed below the feeding pipe, and the feeding pipe is connected with a screw pump through a discharging pipe; the vacuum pump is connected with the vacuum port through the vacuum pipe, the cleaning pipe is connected with the cleaning port, the cleaning ball is arranged in the cleaning pipe and connected with the cleaning port, an