It has been widely used in to enrichment the particle millimeters fine grain,like,iron,tin,chrome,tungsten,zinc,tantalumniobium,gold,coal,monazite,rutile,zircon,copper,sulphur,other lowgrade ores or nonmetallic minerals which have a enough specific gravity difference, Working characteristics of the spiral chute is respectively in the end of the groove of the interception of jing, the .