FLOTATION MACHINE Russian patent published in 2003 - IPC

FIELD: mineral concentration by method of flotation, particularly, aeration devices; applicable in metallurgical, mining, chemical and other industries. SUBSTANCE: flotation machine includes compartment, drive, aeration unit having stator and impeller. Bottom plate is installed on compartment bottom under impeller and coaxially to it. Flotation machine has additionally three impellers and disperser installed on shaft above impeller. Bottom plate is made in form of disk with central opening exceeding diameter of circumscribed circumference of lower impeller. Bottom plate has pulp flow guide and extension in form of two semirings interconnected with each other. Lower impeller is partially or fully installed into said extension. EFFECT: improved air dispersion and highest rotary circulation of pulp, provided higher process efficiency characteristics with high pulp flow capacity. 6 cl, 1 dwg