Circulating heat exchange dry polymerization kettle

The utility model discloses a circulating heat exchange dry polymerization kettle, relates to the technical field of polymerization kettle structures, and mainly solves the problem that the center temperature of reaction raw materials in the kettle cannot be accurately controlled by the existing dry polymerization kettle. The main structure of the reaction kettle is as follows: a stirring shaft is arranged in the kettle body, a circulating flow channel is arranged in the stirring shaft, a kettle body jacket is arranged on the outer side wall of the kettle body, and a kettle bottom jacket is arranged on the outer wall of the bottom of the kettle body; and a baffle plate is also arranged on the inner side wall of the kettle body. According to the circulating heat exchange dry polymerization kettle, circulating cooling of the reaction kettle acts simultaneously from inside to outside, the temperature of the periphery and the center of a raw material in the kettle can be controlled, the temperature difference bet