Deslagging device of rotating disc type water treatment tank

The invention discloses a slag removal device of a rotating disc type water treatment tank, and relates to the technical field of water treatment equipment. The device comprises a device body, a round blocking shell is fixed to the bottom of the inner wall of the device body, a filter screen is embedded and fixed to the bottom of the inner wall of the device body, a drainage pipe is fixed to the bottom of the device body, and a plastic slag removal mechanism is arranged on the inner side of the round blocking shell and comprises a frame plate; the frame plate is fixed to the top of the device body, a fixing ring is fixed to the bottom of the inner wall of the frame plate, and a rotating rod is rotatably mounted at the top of the inner wall of the frame plate and driven by an external motor. Through the arrangement of the plastic slag removal mechanism, a rotating rod, a sliding rail column, a hinge rod and a push plate are matched to push plastic impurities adhering to the outer side of a blade rod to be sepa