High-efficiency reaction kettle

A high-efficiency reaction kettle, comprising:

• a kettle body, configured to accommodate a slurry;
• a guide cylinder, fixed at a top of the kettle body and extending downward, wherein a first flow guide port is formed at a bottom of the guide cylinder, and a second flow guide port is formed at an upper side wall of the guide cylinder;
• multiple feeding pipes, wherein at least part of openings of the feeding pipes are arranged inside the guide cylinder;
• a stirring device, penetrating through the guide cylinder and extending out from the first flow guide port of the guide cylinder, to drive the slurry to move downward inside the guide cylinder, and to drive the slurry to move toward a periphery of the kettle body at the bottom of the kettle body;
• a baffle, arranged on an inner side wall of the kettle body and extending along a height direction of the kettle body;
• and
• a solid-liquid separation device, arranged at a top of the kettle body and located outside the guide cylinder, to extract a clear liquid from the slurry inside the kettle body.