SU1286295A1 - Machine for foam separation - Google Patents

Abstract

The invention relates to the field of mineral processing and can be applied in the selective flotation of non-ferrous metal ores. The purpose of the invention is to increase the extraction of valuable components and the quality of the concentrates obtained by reducing the discharge of flotation products. The machine includes a loading chamber (k) 1 with a mechanical impeller block 2 and a housing 3. It is divided by a transverse partition 4 with a height-adjustable threshold 8 on K 5 flotation with installed pneumatic aerators 7 and a soothing K 6. It is installed, a device for unloading foam product - in the form of an adhesive drum (B) 9, and K 6 itself communicates with the impeller unit 2 of the circulation drum. tube 12. The ratio of the diameter B 9 to the distance from its axis to the partition is 1 / 2-2 / 3. The original pulp enters K 1, where it contacts with reagents, and then K 5, where intensive aeration is maintained. The floated material B 9 is removed from K 5, from which the product is removed into the foam chute 11. Non-floated particles enter the zone below the aerators. Mineral mineral particles precipitated from foam in K 6 are returned to the foam separation feed using pipe 12. 2 Il. 77 (L to 00 O) to con

Description

FIG.

one

The invention relates to the enrichment of minerals and can be applied in the selective flotation of non-ferrous metal ores.

The purpose of the invention is to increase the extraction of valuable components and the quality of the concentrates obtained by optimizing the flotation discharge mode.

FIG. 1 shows a foam separation machine, a section through FIG. 2 - machine body, cross section.

The mattress of foam separation includes a loading chamber 1 of rectangular cross-section, a mechanical impeller unit 2 installed in the chamber 1, a case 3, divided by a transverse partition 4 into the flotation chamber 5 and a reducing chamber (compartment) 6. Pneumatic aerators 7 are installed in the flotation chamber. A height-adjustable threshold 8 is installed on the transverse partition 4. An adhesive drum 9 with a knife foam remover 10 is installed in the stilling chamber 6. A foam chute I1 is located on the opposite side of the adhesive drum 9. The chamber 6 communicates with the impeller unit 2 by the circulation tube 12. The flotation chamber 5 includes a discharge pocket 13 communicating with it by means of a window 14 located in the side wall of the chamber below the level of the pneumatic aerators 7. A pulp level regulator 15 is installed in the discharge pocket 13 a drain plug with Peskoviy hole 16. A pulp level regulator 15 is connected to the adjustable threshold 8 of the vertical partition 4 using the t 17. The flotation chamber 5 has a rectangular shape above the level of aerators 7 and is truncated th pyramid in the bottom part. A mixer 18 is installed in the flotation chamber 5,

The machine works as follows.

The original pulp enters the receiving chamber 1, where it contacts with the reagents using a mechanical impeller 2, and then enters the flotation chamber 5. This feed of the original feed, the foam layer, ensures maximum extraction of useful minerals into the foam by reducing the flow rate of the initial feed and, as a result, eliminating the breakthrough

five

0

five

. foam layer. In the flotation chamber 5, intensive aeration is maintained with aerators 7, the degree of which decreases as it approaches the adhesive drum 9. The flotation material in the form of mineralized foam is removed from the flotation chamber 5 by means of a rotating adhesive drum 9. The product is removed from the drum with a knife device 10 into the foam chute 11. The reduction in air consumption as it approaches the adhesive drum 9 creates favorable conditions for the precipitation of hydrophilic gangue rock from the foam. Unparticulate particles enter the zone below the aerators 7 and are discharged through the window 14 into the discharge pocket 13. The mixer 18 prevents solid from settling in the separation chamber 5. The pulp level in the maquine is regulated by means of the regulator 15, with a wide drain threshold, the sand fraction of the tails is discharged through the adjustable opening 16. In compartment 6, partial demineralization of the price and its removal from mechanically dispersed fine hydrophilic particles occurs. The upper edge of the threshold 8 is set at a level corresponding to the pulp level in the chamber, which ensures that only mineralized foam without pulp streams containing waste rock enters the zone of action of the adhesive drum. The minerals particles deposited in the compartment 6 from the foam are returned to the foam separation feed with the help of the circulation pipe 12.

/.

An essential parameter for increasing the efficiency of the proposed foam separation machine is 45 with the distance between the vertical wall 4 and the adhesion of drum 9. At a ratio d, in the interval

/ 2-2 / 3 maximum 50 values of extraction and content of useful component in concentrate are reached.

When the ratio r is more than 2/3, a decrease in the quality of the component components is observed due to a decrease in the quiet zone for the foam from the particles of inhibited minerals. When the ratio of Y is less than 1/2 content is useful0

The amount of mineral content in the concentrate does not increase, but the extraction of valuable components decreases due to the partial precipitation of psce minerals from the foam.

Claims (1)

Invention Formula A foam separation machine that includes a loading chamber with a mechanical impeller block, a housing divided by a transverse partition with a height-adjustable threshold to a flotation cell with pneumatic aerators installed in it and a still-cooling chamber with devices for unloading foam and chamber products, characterized in that, in order to improve the extraction of valuable components and the quality of the concentrates obtained by optimizing the flotation product discharge mode, the device for unloading foam product is filled in the form of an adhesion drum, and soothing the chamber communicates with the mechanical impeller unit by the circulation tube, the ratio of the diameter of the drum to the distance from its axis to the transverse partition is 1 / 2-2 / 3. 13 15 / / sixteen / 9 In tt FCB, 2