The steam liquefaction ejector is often welded with a base on the head because of the need to maintain a concentricity during the installation of the transmission device and the shaft seal device and the convenience of loading, unloading and maintenance. on this base. The design content of the reaction kettle transmission device generally includes: selection of electric motors, reducers and couplings, selection or design of machine bases and design bases, etc.

The reactor is often equipped with a stirrer and has some rotational speed requirements, which requires a motor and a transmission device to drive it to rotate. The transmission device is usually arranged at the top of the reaction kettle, and generally adopts a vertical arrangement. The motor reduces the speed to the stirring speed required by the process through the reducer, and then drives the stirring shaft to rotate through the coupling. A stand is arranged under the reducer so that it can be installed on the head of the reactor.

Most of the motors used in the reaction kettle are used in conjunction with the reducer. Only when the stirring speed is high, the motor directly drives the stirring shaft without the reducer. Therefore, the selection of the motor should generally be considered in conjunction with the selection of the reducer. . In many occasions, the motor and the reducer are supplied together, and the matching motor can be selected according to the selected reducer during design.