Degradation and recovery device for polytetrahydrofuran

The utility model belongs to the technical field of degradation of polytetrahydrofuran, particularly relates to a degradation and recovery device for polytetrahydrofuran, and aims to solve the problems of poor anti-sticking effect and poor catalyst mixing effect in the degradation process, and adopts the following scheme that the degradation and recovery device comprises a degradation tank, the inner wall of one side of the degradation tank is rotatably connected with a rotating rod, and the inner wall of the other side of the degradation tank is rotatably connected with the rotating rod; symmetrical spiral blades are fixed to the outer surface of the rotating rod, a liquid inlet is formed in the side wall of the top end of the degradation tank, one end of the degradation tank communicates with a liquid inlet pipe, the side wall of the bottom end of the degradation tank communicates with a liquid outlet pipe, and an adding box is installed on the side wall of one side of the degradation tank; according to the