Mixed chemical reactor

The utility model relates to the technical field of chemical reactors, and discloses a mixed chemical reactor which comprises a reaction tank and a feed pipe, a driving motor is mounted above the reaction tank, a rotating shaft is arranged at the output end of the bottom of the driving motor, and the top of the rotating shaft is connected with the output end of the driving motor through a coupler. A large gear is installed on the lower portion in the reaction tank, a small gear is fixedly connected to the bottom of the rotating shaft, and the small gear is meshed with the large gear. The bull gear is arranged at the lower part in the reaction tank, the pinion is fixedly connected to the bottom of the rotating shaft, the pinion is meshed with the bull gear, and the bottom of the bull gear is rotationally connected with the bottom of the inner wall of the reaction tank, so that when the rotating shaft rotates, the bull gear can be driven to rotate; the stirring rods are connected to the periphery of the bottom