Reaction crystallization kettle used for granulation preparation method for ionic liquid of solid state in low temperature

The utility model discloses a reaction crystallization kettle used for a granulation preparation method for ionic liquid of a solid state in a low temperature. The reaction crystallization kettle comprises a kettle body, a kettle cover and a jacket, the kettle body and the kettle cover are fixed into the complete reaction crystallization kettle through the jacket, a mechanical transmission device is installed at the top of the kettle cover, the mechanical transmission device drives a stirring shaft to rotate, the stirring shaft penetrates through a mechanical seal and stretches into the kettle body, a feeding port and a solid feeding port are installed on the kettle cover, a blanking port is installed at the bottom of the kettle body, and a double spiral blade is installed on the stirring shaft in the kettle body. The kettle body comprises a kettle body outer wall and a kettle body inner wall, an interlayer is placed between the kettle body outer wall and the kettle body inner wall, cooling circulating water