A polycarbonate plastic recycling and washing device comprises a washing tank, a stirring shaft, an asynchronous motor, a tachometer and a motor frequency converter. A feed inlet and a water inlet are arranged at the top of the washing tank, and a finished product outlet and a liquid discharge outlet are arranged at the bottom. A stirring shaft is arranged inside the washing tank, connected to the asynchronous motor through a motor shaft. The asynchronous motor is connected to the motor frequency converter, which is connected to the tachometer. In the utility model, the tachometer can monitor the rotating speed of the stirring shaft during polycarbonate plastic washing. The motor frequency converter adjusts the asynchronous motor to a specific speed according to the speed data from the tachometer, avoiding incomplete cleaning due to excessively low stirring speed and excessive friction between the stirring shaft and polycarbonate plastics caused by excessively high speed, which would cause wear to the shaft and materials. The washing efficiency is greatly improved.

Area Code: CN

Application Number: CN201720521712.7