PNEUMATIC FLOTATION COLUMN MACHINE Russian patent published in 2002 - IPC

FIELD: mineral concentration; applicable in processing of mineral raw materials containing nonferrous, ferrous, rare, noble metals and nonmetalliferous minerals. SUBSTANCE: flotation machine includes chamber of rough flotation with feeding, aeration and unloading devices. Rough flotation chamber accommodates final flotation chamber whose bottom part is provided with feeding and aerating devices in the form of ejectors. Unloading device of rough flotation chamber is made in the form of branch pipes through which and ejectors, pulp is unloaded into final flotation chamber. EFFECT: increased recovery of useful component into concentrate due to full exclusion of countercurrent in flotation process. 1 dwg, 1 tbl