FLOTATION CLASSIFIER Russian patent published in 2017 - IPC C22B3/02 B03D1/14 

FIELD: technological processes.

SUBSTANCE: invention relates to concentration of ores by flotation. Flotation classifier comprises a cylindrical chamber with a lower conical part connected with a sands unloader, an installed inside the chamber coaxially with it open from above cylindrical collector of fine particles drain with an inclined drain branch pipe and a pulp level regulator, aerators installed between the chamber walls and the cylindrical collector of fine particles drain, a lower product collector, installed in the upper part of the chamber narrowing chutes made with a lower narrow portion of the bottom and with lower product flow rate regulators and connected in the lower narrow part of the bottom with the lower product collector by means of branch pipes, an installed inside the chamber foam-collecting chute for the upper product of the narrowing chutes and a tangential branch pipe to feed the initial pulp installed to provide a rotational movement of the pulp in the chamber. Narrowing chutes are installed in the upper part inside the cylindrical chamber perpendicular to its radius and are provided with boards having a horizontal upper edge and cutouts for outlet of the upper product of the narrowing chutes in the lower narrow part of the narrowing chutes. Foam-collecting chute for the upper product is located under the narrowing chutes and is made with an output from the chamber.

EFFECT: provided is higher efficiency of flotation classification.

1 cl, 3 dwg