Metallurgical waste heat recovery device

The invention discloses a metallurgical waste heat recovery device comprising a frame, a heat exchange pipe is connected to the center of the interior of the frame in a buckled mode, a cleaning frameis connected to the middle of the heat exchange pipe in a buckled mode, screw shafts are connected to the centers of the two sides of the cleaning frame in a threaded mode, and auxiliary chain wheelsare fixedly connected to one ends of the screw shafts. A driving motor is fixedly connected to the top of the frame, a main chain wheel is fixedly connected to the output end of the driving motor, thesurface of the main chain wheel is in transmission connection with the surface of an auxiliary chain wheel through a chain, and a front panel and a back panel are fixedly connected to the front faceand the back face of the frame correspondingly. A controller is fixedly connected to the side, away from the driving motor, of the frame. According to the metallurgical waste heat recovery device, heat energy is converted into e