DEVICE FOR AUTOMATICALLY CONTROLLING AIR CONCENTRATION IN PULP OF FLOTATION MACHINE Russian patent published in 1998 - IPC

FIELD: mineral dressing. SUBSTANCE: device comprises flotation machine chamber with impeller and air-in-pulp concentration measuring element. The latter is constructed as two pairs of pipes placed at different levels in the flotation machine chamber. Ends of one pair of tubes are disposed in aerated pulp zone and ends of the other pair in non-aerated pulp zone. Tubes are connected with differential pressure gages, their electric ports being connected to dividing unit attached to regulator. Output of the latter is connected with frequency converter attached to electrical motor input connected with impeller. EFFECT: automated flotation process. 1 dwg