HYDRAULIC CONCENTRATOR Russian patent published in 1997 - IPC

FIELD: apparatuses of grainy mixtures separation for fractions by density in operations of rare-earth and noble metals bearing ores benefication. SUBSTANCE: hydraulic concentrator has two separation chambers 1 and 2. Chamber 2 has stream deformers 5 located at an angle of 30 - 50 deg to its axis. Chamber 1 has protrusion, that makes its cross-section narrow at distance of 1/3 of its length from place of chambers connection. This provides increase of effectiveness of material separation due to repurification using its circulation in zones of vortex formation. For material with small difference of densities inclined chamber 1 has constant cross-section and stream deformers 5 mounted at an angle of 30 - 50 deg to its axis. EFFECT: improved design. 2 cl, 3 dwg