GEAR TO EXTRACT CONCENTRATE WITH HEAVY METALS Russian patent published in 1998 - IPC

FIELD: enrichment of mineral resources. SUBSTANCE: gear is related to equipment designed to extract concentrate with heavy metals out of pulp, for instance, fine gold. It includes intake grate with lateral arrangement of slits terminating in solid plate under which grate with slits arranged along flow and adjustable solid plate is located. Lower surface of the latter is fitted with longitudinal partitions contacting partitions of finned plate positioned beneath. Vessel to collect concentrate is separable. Intake hopper is equipped with link. EFFECT: extraction of small particles of heavy metals from rejects of industrial devices. 4 dwg