Method and apparatus for crushing and separating scrap material

摘要: Scrap material, having components which are rendered brittle by freezing, is passed through a freezing zone at cryogenic temperatures to make said temporarily non-ductile. The scrap then crushed in first comminution relatively small size. Thereafter, the sorted air separator into streams (a) ''''dust'''' or fines, (b) light fraction and (c) heavy fraction. magnetically separated magnetic non-magnetic fractions. fractions combined together second smaller discharge of this nonmagnetic recycled zone. fed third for still further size reduction. After separation reduction, steps may be repeated as deemed desirable, based on characteristics range desired products, metal values recovered. various recovered collected ''''dusts'''' fines also subject recovery metallic non-metallic thereof.