Fermentation tank with self-cleaning assembly

The utility model discloses a fermentation tank with a self-cleaning assembly. Tank body, a motor is mounted on the tank body; a rotating shaft of the motor penetrates through the upper part of the tank body through a sealing bearing; a high-pressure spray head is arranged in the tank body; the high-pressure spray head is communicated with a water supply mechanism through a water inlet pipe; the side part of the tank body is communicated with a cleaning pipe; one end of the cleaning pipe is communicated with a discharge port of the reversing valve; and two sets of feeding ports of the reversing valve communicate with a water tank and a nitrogen making machine through pipelines correspondingly, an electric heater is arranged at the bottom of the water tank, a stirring rod is in key connection with a rotating shaft of the motor, the stirring rod is fixedly connected with a scraping plate through a connecting rod, and the side portion of the scraping plate is connected with the inner wallof the tank body in an a