Device for performing throwing and spraying descaling on metal strips by means of abrasive slurry

The invention discloses a device for performing throwing and spraying descaling on metal strips by means of abrasive slurry and belongs to the technical field of descaling of the metal strips. The device is characterized by comprising a throwing and spraying descaling device and a recycling device. According to the throwing and spraying descaling device, a slurry throwing machine, a slurry spraying machine, a washing machine, an extrusion drying roller, a drying machine, an oiling device and a roughness detector are arranged between an uncoiler and a coiler sequentially. According to the recycling device, waste slurry is recycled into a collecting tank and conveyed to a magnetic force filtering tank to be processed; then separation is performed through primary and secondary granularity separators to obtain abrasive materials in the qualified grain diameter, and the abrasive materials are conveyed into a stirring slurry feed tank and conveyed to the slurry throwing machine and the slurry spraying machine through pipelines respectively to be reused; unqualified slurry in small grain diameter is delivered into a gravity paper filtering tank to be filtered, and clean water is recycled. The device for performing throwing and spraying descaling on the metal strips by means of the abrasive slurry has the advantages that the two descaling methods of throwing and spraying cooperate, meanwhile, the abrasive materials and water already used can be recycled, and the whole production process is automatic and free from pollution and can achieve high product qualities.