SU1407561A1 - Pulsating pneumatic floating machine - Google Patents

Abstract

The invention relates to the enrichment of minerals and may, used in the mining, metallurgical, chemical and other industries. The purpose of the invention is to increase the extraction of thin classes of valuable components due to the intensification of air dispersion. The machine consists of a chamber (k) 1 with flotation and aeration zones, with a nozzle 2 for supplying pulsed compressed air, an aerator (A) 3, a device (P) 4 for supplying the initial power supply, P 5 output foam and P 6 output chamber products . At the same time, A 3 includes a housing 7 installed outside of K 1 with horizontal perforated partitions (f. Ic c, Aei: ipaUHvu

Description

: Rodcam 8 in the form of rings, installed between K 1 and housing 7. In the lower I part of the aeration zone under L 3, there is a bump stop 9 with a conical wall and a central hole. Under I by the action of alternating pressure, the slurry flowing inside A 3 is periodically displaced from the volume A 3,

When the pulp passes through the openings of the partitions 8, the surface of the pulp comes apart and it is saturated with air. From the lower part of A 3, the pulp is sent to K 1 by the baffle 9. The floated particles rise to P 5, the chamber product is removed through P 6.

I

The invention relates to the enrichment of minerals, in particular to devices for the separation of mineral particles by flotation, and can be used in the mining, metallurgical, chemical and other industrial sectors, I. Purpose of the invention is to increase the recovery of thin classes of valuable components due to the intensification of dispersions. - Eovan air.

The drawing shows a flotation machine, a slit.

I The pulsating pneumatic flotation machine consists of a chamber 1 with flotation and aeration zones, with a nozzle 2 for supplying a pulsed compressed air, a device 4 for supplying the initial power supply, adapting PIR 5, outputting foam and irradiating 6 output of chamber products, and 2 g of a pulverizer communicated with the pipe (not shown) for supplying with the compressed air

Aerator 3 includes case 7 installed with | outside the chamber 1 and perforated partitions 8 in the form of rings installed between chamber 1 and case 7 o In the lower part of the aeration zone under the aerator 3, a bollard 9 is installed with a conical wall and a central hole.

The flotation machine operates as follows.

After the chamber 1 is filled, the pneumatic CclTOp is turned on through the device 4 pulpdy. Through the pulsator, the internal volume of the aerator 3 alternately communicates with the compressed air line, then with the atmosphere. Under the action of a temporary pressure, the pulp

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The inside of the aerator 3 is periodically displaced from the internal volume of the aerator 3 and is refilled under hydrostatic pressure. In this case, the pulp passes through the openings of the dispersing walls 8, as a result of which its surface ruptures, strongly developed turbulence is formed, and the liquid is mixed with air. Air bubbles slurry pulp from the lower part of the aerator 3 by means of the bump stop 9 is sent to chamber 1. Floated mineral particles rise to the pulp surface in chamber 1 and in the form of mineralized foam by gravity or by means of a foam fixture get into the container 5. The stone product is removed through device 6.

Installing the housing 7 of the aerator 3 on the outside of the flotation cell 1 and performing the perforated partitions in the form of rings installed between the walls of the chamber 1 and the body 7, allows an unlimited increase in the volume of the aerator 3 and the exit area of the pulp and air mixture in the flotation cell 1, with optimal flow area. As a result, the intensity and degree of air dispersion increase with pulp aeration.

The installation of the baffle 9 in the lower part of the aeration chamber, 3 ensures the optimum direction of movement of the pulp air mixture from the periphery to the center of the flotation cell, which ensures an even distribution of the pulp air mixture over the entire cross section of the flotation cell.

Intensification of the dispersion of air and optimization of the hydrodynamic flotation regime ultimately provides a more complete extraction of the comrade.

Thin classes of valuable components

A pulsating pneumatic flotation machine, including a chamber with flotation and ablation zones, with a nozzle for supplying pulsed compressed air, an aerator, made 15 in the form of a housing with a horizontal mouth

one above the other partitions, installed in the lower part of the aeration zone under the aerator a bumper with a conical wall and devices for unloading foam and chamber products, characterized in that, in order to improve the extraction of thin classes of valuable components due to the intensification of air dispersion, the aerator chamber is installed outside the flotation cell, the partitions are made in the form of perforated rings, and the bump stop is made with a central hole.

Claims (1)

The claims <0 A pulsating pneumatic flotation machine, including a chamber with flotation and aeration zones, with a pulsating compressed air supply pipe, an aerator made in the form of a body with baffles horizontally mounted in it one above the other, a chimney cone installed in the lower part of the aeration zone under the aerator and devices for unloading foam and chamber products, characterized in that, in order to increase the extraction of thin classes of valuable components due to the intensification of dispersion air, the aerator chamber is installed outside the flotation chamber, the partitions are made in the form of perforated rings, and the chipper is made with a central hole.