WASHING APPARATUS Russian patent published in 1998 - IPC

FIELD: mining industry; concentration of placer gold and platinum sands. SUBSTANCE: washing apparatus has hopper, material feed system, fraction divider with concentration set system, guide members to discharge tailings and heads, and washing movable table. Fraction divider is furnished with nugget catcher, sieve and vibrator installed on bottom. Concentration set system is made in the form of hydrocyclones installed under fraction divider, and sectionalized cassettes. Washing movable table, fraction divider and hydrocyclones are provided with additional nozzle-feed water system. Fraction divider has guide blades installed in staggered manner. Sectionalized cassettes are installed on roller supports of turnable frame secured on axle, and are coupled with drive of vibrating eccentric and are furnished with inclined shelves, templates with lips, air feed system and cornice with swirlers. EFFECT: increased degree of extraction of precious component. 3 cl, 7 dwg