DEVICE FOR DRY MAGNETIC SEPARATION OF MAGNETIC GRAIN PRODUCTS

摘要

FIELD: mining.SUBSTANCE: invention relates to mineral processing in processes of dry magnetic separation of polydisperse granular ore and alluvial materials in core, recleaning and finishing operations. Device for dry magnetic separation magnetic granular product contains a magnetic system and a hopper for collection of enriched product. Magnetic system made in form of a drum into a cylindrical shape with enlarged diameters at ends of its bases and a smaller diameter in middle, is rotatable about its axis and embedded therein a permanent magnet and a stationary thin tape covering magnet system from separated material receiving unit comprising hoppers for non-magnetic intermediate and magnetic products. Tape is made of wear-resistant material with thickness less than 0.1 mm and is rigidly attached at one end above loading site loading nozzle, and to other end in lower part of load attached tension. By pulling tape on drum, it takes form of trough drum due to difference in diameters at ends of its bases Dand middle D(D> D).EFFECT: technical result is improved quality of separation of primary products.1 cl, 2 dwg