FIELD: concentration of finely divided ferruginous quartzites and other materials. SUBSTANCE: concentrator has inclined though with openings covered by grates in form of grooves with magnets of similar polarity on walls. Installed in each groove are either smooth, or needle-shaped, or combined perforated porous partitions in one or several layers so that their lower edges are fastened ahead of opening in body bottom, and upper edges, at level of overflow lip of trough riffles. EFFECT: higher quality of produced concentrate. 1 tbl
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Authors
Dates
2001-07-27—Published
2000-08-24—Filed