Reaction kettle with automatic cleaning device

A reaction kettle with an automatic cleaning device comprises a kettle shell arranged outside, a base arranged at the bottom of the kettle shell and supporting legs arranged at the bottom end of the base and further comprises a discharging pipe, a discharging valve, a feeding pipe, a cleaning assembly, a servo motor, a rotating shaft, a stirring kettle, a connecting rod and a scraping plate. A servo motor is mounted in the middle of the top end of the kettle shell, a rotating shaft is mounted at the bottom end of the servo motor, a plurality of connecting rods are symmetrically arranged on two sides of the rotating shaft, and a scraper in contact with the inner wall of the kettle shell is fixed at one end of each connecting rod; the cleaning assembly comprises a flow dividing ring, spray heads, a connecting port, a liquid conveying pipe and a control valve, the flow dividing ring is fixed to the top of the inner side of the kettle shell, the spray heads are arranged at the bottom end of the flow dividing ring