SEPARATION METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2009 - IPC B03B5/70 B03C1/08 

FIELD: technological processes.

SUBSTANCE: invention concerns mineral dressing and can be applied in ferrous metallurgy at concentration plants processing magnetite ores. Separation method involves sludge feed to a sloping chute, upper part of which is positioned in magnetic flocculator field for preliminary magnetisation of magnetic particles in the sludge flow, especially in upper layers; exposure of magnetic particles to traveling field of magnetic inductor at the chute bottom; exposure of separated mineral particles to transverse vibration by placing vibrating flat vertical plates into the flow in flow direction; flow height separation at the chute end into upper and lower products. Method is performed by separation device including nonmagnetic chute with flat bottom, mounted at variable angle ranging from 3 to 25 degrees, magnetic flocculator system positioned in the upper part and assembled of constant magnets without polarity alternation, inductor of traveling magnetic field, oscillator connected to vibration cartridge in the form of vertical plate set directed along sludge flow, and separator positioned at the chute end at flow outlet. Distance from lower plate edges of vibration cartridge connected to oscillator to the chute bottom is adjustable.

EFFECT: improved product separation efficiency and ore mineral extraction into heavy product, reduced ore mineral content in light product, enhanced efficiency of the whole technological chain by application of the invention in preliminary concentration.

20 cl, 1 dwg