The equipment adopts two-stage filtration. After passing through the feed box, the materials will fall on the belt due to gravity, and the rotating belt will transport the materials to the magnetic roller Cylinder side. When the material passes through the material scraper, the scraper will evenly spread the material to the upper surface of the belt, and the material thickness is about 7mm. When the material passes through the magnetic plate, The iron containing waste in the upper layer will be adsorbed to the magnetic plate due to the magnetic force of the magnetic plate. When the material passes through the magnetic drum, the scrap containing iron is adsorbed by the magnetic drum and brought to the magnetic drum The lower side of the drum falls into the waste bucket, and the treated clean materials will enter the clean material box in the form of parabola. In this way, the magnetic plate and magnetic drum form two-stage filtration, The treatment effect is greatly improved.