Solid-liquid mixed oil-water separation device

The invention relates to a solid-liquid mixed oil-water separation device. The device comprises a deslagging module, an oil-water separation module and a waste water storage module, the waste water storage module comprises a water storage tank and a water pump, the water pump is arranged at a water outlet of the water storage tank, the waste water storage module further comprises a frequency converter and a permanent magnet variable frequency motor, the water pump is connected with the permanent magnet variable frequency motor, and the frequency converter is connected with the permanent magnetvariable frequency motor. Compared with the prior art, the standby of the motor in a low-frequency state is realized by utilizing the sleep function of the frequency converter, so that the frequent starting of the motor is reduced, the mechanical vibration generated when the motor is started can be effectively reduced, and the stable operation of equipment is facilitated; and meanwhile, adverse effects on a power supply