METHOD OF DRY CONCENTRATION AT MOBILE MODULAR ORE DRESSING COMPLEX Russian patent published in 2012 - IPC B07B9/00 

FIELD: process engineering.

SUBSTANCE: invention relates to concentration of minerals, particularly, to processing of gold-containing ores of quartz-vein type in smaller deposits and occurrences. Proposed method comprises the following processes: scalping, crushing of coarse sizes, fine crushing, coarse grinding and pneumatic separation, finishing of pneumatic separation concentrate and storing pneumatic separation tails. Crushing of coarse sizes is performed before scalping to separate the material into three fractions: +5 mm, -5+2 mm, - 2 mm. The +5 mm flow is directed for fine crushing. The -5+2 mm flow is directed to coarse crushing. The -2 mm flow is directed to pneumatic separation. Fine- and coarse-crushed material is directed to scalping.

EFFECT: higher efficieincy.

1 dwg