COLUMN FLOTATION MACHINE Russian patent published in 2025 - IPC B03D1/24 

FIELD: performing operations.

SUBSTANCE: proposed invention relates to devices for flotation pneumatic dressing of minerals and can be used for processing of mineral and technogenic raw material containing non-ferrous, rare and noble metals. Flotation column machine includes a housing containing cylindrical upper and lower parts, located between them conical transition part, a conical bottom part, a cylindrical foam collector located outside the upper part of the housing with a discharge branch pipe, a feed branch pipe, a diaphragm and an aeration unit located in the lower part of the housing. Housing is additionally equipped with a neck installed between the upper and lower parts, with radial flow stabilizers and an axial distribution cone. Lower part of housing is equipped with diffuser, and upper part – with three diffusers of different diameter with cylindrical adapters in their upper zone and external rings with cross section in the form of isosceles triangle, installed coaxially with formation of steps. Cylindrical foam collector has an inclined bottom. Diaphragm is made in the form of at least two rings of different diameter with a cross section in the form of an isosceles triangle. Aeration unit includes a tangentially installed pneumatic steam aerator and a cone shaper of an ascending flow. Feed branch pipe is installed in the conical transition part of the housing above the axial distributing cone of the neck.

EFFECT: high concentration of the foam product and, consequently, the degree of extraction of the valuable component.

1 cl, 2 dwg