DRUM MAGNETIC SEPARATOR Russian patent published in 2009 - IPC B03C1/12 

FIELD: engines and pumps; mining.

SUBSTANCE: invention is used for processing of unsized material with fineness of up to 250 mm. Drum magnetic separator comprises non-magnet rotary drum, magnetic system installed inside drum, feeder and receiver. Magnet system is made of permanent magnet plates of neodymium-iron-boron, which are assembled in the first quarter of drum in the form of rings with alternating magnetic polarity along drum width. In the second quarter magnetic system is also arranged from permanent magnet plates of neodymium-iron-boron. They are assembled in the form of magnet rows with alternating magnetic polarity in the direction of material movement, with alternating pole pitch from 120 mm to 60 mm and possibility to combine separate plates in blocks.

EFFECT: higher efficiency of large-sized unclassified ore separation process, high selectivity of coarse grain products separation in the first quarter of drum, magnetic transport of coarse and selection of fine ones in the second quarter of drum.

1 cl, 2 dwg