POLYGRADIENT MAGNETIC FILTER-SEPARATOR Russian patent published in 1994 - IPC

FIELD: magnetic enrichment. SUBSTANCE: device has feeder, drum-shaped working member housing magnetic system, ferromagnetic flexible endless tape enveloping drum and having garland-shaped polygradient members on its outer surface, deflecting roller with built-in magnetic system positioned outside loop of flexible endless tape, receivers of non-magnetic product, water and magnetic product. Deflecting roller is positioned above flexible tape relative to the direction of its movement between drum and tensioning roller, water receiver is inside closed loop of flexible endless tape under deflecting roller. End of the drum magnetic system and beginning of magnetic system of deflecting roller are in the same plane passing across axes of drum and deflecting roller. Initial material is supplied by feeder to polygradient members compacted by magnetic system of drum and is separated from them when leaving operation zone of magnetic systems of drum and deflecting roller and with its folding when passing over tensioning roller. Process water is released from polygradient layer during movement of tape round deflecting roller. EFFECT: enhanced filtering efficiency. 3 dwg