Oxidation reaction kettle

The utility model discloses an oxidation reaction kettle which comprises a cylinder body, an upper seal head is arranged at the top of the cylinder body, the upper seal head and the cylinder body form a sealed reaction cavity, a jacket is arranged on the outer wall of the cylinder body, a heating cavity is arranged between the jacket and the outer wall of the cylinder body, the jacket is provided with a steam inlet and a steam outlet pipe, and the steam inlet is communicated with the steam outlet pipe. The upper sealing head is provided with a plurality of joints and comprises a feeding port, an acid adding port, an emptying port, a pressure gauge port and an instrument sensor interface, the emptying port is connected with a tail gas treatment device, the barrel is provided with a stirring device, the stirring device comprises a driving motor, a stirring shaft and a stirring paddle, the driving motor is mounted on the upper sealing head, and the stirring shaft is connected with the stirring paddle. The stirri