DEVICE FOR QUARTZ GRAINS PURIFICATION BY FOAM FLOTATION Russian patent published in 2019 - IPC C01B33/12 C03C1/02 B03D1/02 B03D1/16 

FIELD: technological processes.

SUBSTANCE: invention relates to the technology of cleaning quartz grains by means of foam flotation and can be used in semiconductor, chemical and optical industries. Proposed device comprises one flotation chamber 1 having stator 2, impeller 3 with blades and over impeller tube 5. Over impeller tube 5 is made with possibility to supply circulating flow of processed pulp to blades of impeller 3 and comprises branch pipe for mechanical air supply at operating impeller 3. Over impeller tube 5 has one hole 9 for supply of circulating flow of processed pulp. In flotation chamber there is channel 6 with hole 7 for additional circulation of treated pulp, which ends with branch pipe 8 for direction of processed pulp flow into hole 9, which is available in over impeller tube 5.

EFFECT: higher quality of quartz grains in one flotation cell.

1 cl, 1 dwg, 1 tbl