COUNTERFLOW SEPARATOR FOR CONCENTRATION OF FINE COALS (0-3 mm) Russian patent published in 2013 - IPC B03B5/62 

FIELD: process engineering.

SUBSTANCE: invention relates to ore dressing and may be used in separation of ore. Proposed separator comprises process water and mineralised pulp feed pipelines with control valves. Besides it incorporates concentration round tube of diameter equal to threefold sum of diameters of process water and mineralised pulp feed pipelines and arranged inclined to horizon. Said tube features length equal to its tenfold diameter. It is furnished with top and bottom separation flanges, their length making one third of tube length. Concentration tube bottom part is shaped to truncated cone with smaller base diameter equal to that of process water feed pipeline while larger base diameter equal to that of concentration tube. Concentration tube top section above tube central lengthwise axis is closed while below said axis it is open to discharge light fraction. Mineralised pulp feed pipeline features cross-section isosceles triangle and is shaped to arc with bend of 180 degrees.

EFFECT: higher efficiency of concentration.

4 cl, 4 dwg