Esterification reactor

The utility model discloses an esterification reactor which comprises a reaction kettle, the top of the reaction kettle is fixedly connected with a fixed block, a servo motor is arranged in the fixed block, the output end of the servo motor is fixedly connected with an output rotating shaft, and the other end of the output rotating shaft is fixedly connected with a limiting shaft. The limiting shaft is connected with the inner wall of the reaction kettle through a fixing mechanism, the other end of the limiting shaft is fixedly connected with a threaded rod, the fixing mechanism comprises a limiting plate rotationally connected with the limiting shaft, the two sides of the limiting plate are fixedly connected with fixing plates, and the fixing plates are fixedly connected with the inner wall of the reaction kettle. According to the device, the threaded rod can be driven to rotate through the servo motor, so that the collecting box can be driven to move up and down through the threaded rod, the scraping plate