Reaction kettle capable of preventing pipeline from being blocked

The utility model discloses a pipeline blockage prevention reaction kettle, which belongs to the technical field of reaction kettles, and comprises a kettle body and a stirring device arranged on the kettle body, the stirring device comprises a driving motor, a first stirring shaft connected with the driving motor and a first stirrer arranged on the first stirring shaft, the kettle body is provided with a feed port and a discharge port, and the first stirrer is arranged on the first stirring shaft. A grid sieve plate for blocking the discharge hole is arranged in the kettle body, and a plurality of sieve holes are formed in the grid sieve plate. According to the utility model, large-particle materials are blocked above the grid sieve plate and are prevented from directly entering a connecting pipeline at the bottom of the reaction kettle, so that blockage at an outlet at the bottom of the reaction kettle is reduced; materials in the outlet pipe can be stirred, and pipeline blockage is reduced; and the grid si