SU1384341A2 - Machine for froth separation - Google Patents

Abstract

The invention relates to the enrichment of minerals and m. used in the beneficiation of ores of non-ferrous and ferrous metals, non-metallic minerals and coal. The purpose of the invention is to increase the extraction and content of the useful component in the concentrate by increasing the number of circulated flotation material in each chamber (K) of the machine.

Description

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us Flotation machines K contain a rectangular casing 2 with a pyramidal bottom. Inside the K, a vertical partition 7 is installed between the loading pocket 4 and the chute 6 to collect the frothy product. The latter divides K into compartments 8 and 9, respectively, of the primary and secondary flotation communicating below through window 25, at the top - above the adjustable threshold 10, Aerators (A) 11 and 12 are installed in compartments 8 and 9, In each compartment 9, between A 11 and 12, inclined plates (P) 22 and 23 are cascaded at an angle exceeding the angle of repose

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The invention relates to the enrichment of minerals and can be used in the enrichment of non-ferrous and ferrous ores, non-metallic minerals and coal,

The aim of the invention is to increase the recovery and content of the useful component in the concentrate by increasing the number of circulated floatable material in each chamber of the machine.

Fig. 1 schematically shows a foam separation machine, a general appearance; in Fig.2, one of the chambers of the machine, a cross-section.

A machine for foam separation contains two or more flotation chambers 1, each of which contains a rectangular casing 2 connected to a pyramidal bottom 3, filled in the form of two side and one lower inclined walls. In chamber 1 there is a loading pocket 4 with a distribution box. 5 to evenly distribute the pulp over the area of the chamber 1. Inside the chamber 1, a vertical partition 7 is installed between the loading-pocket 4 and the chute 6 to collect the frothy product, which separates the chamber 1 into the main flotation compartment 8 and 9 s flotation.

Vertical partition 7 is installed relative to the bottom 3 with a gap, through which both compartments 8 and 9

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The bottom edge of the P 23 is located above the A 11 "In the compartment 8 above the A 11 there is a fender guard 24. Each K has a discharge pocket 15 connected to the pulp lifter 19. The material floated in the compartment 8 passes over the threshold 10 compartment 9о The finished foam product flows into chute 6. Unpartitioned material gets into P 2: 2, then to P 23 and through window 25 into compartment 8. The material deposited on the bottom 3 goes into pocket 15 and pulp lifter 19 is pumped into Pocket 4 of the next K, 1 ZoP. f-lyo 2 ill.

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communicate with each other in the lower part of the chamber. In the upper part of the partition 7 there is an adjustable threshold 10 fixed to it by means of bolts. In the upper part of the chamber 1 compartments 8 and 9 communicate with each other above the adjustable threshold 10, inside the chamber 1 in the compartment 8 of the main flotation at The aerators 11 are installed in the lower part of the partition 7, and aerators 12 are installed in the cleaning cell 9 of the purification flotation. The aerators 12 are installed in the compartment 9 of the cleaning flotation 9 below the level of the aerators 12 there are windows 13 through which the adjacent e chambers 1, chambers 1 on the side of chute 6 for collecting the frothy product are provided with an adjustable threshold 14, which is fixed with bolts to the wall of the rectangular case 2o

Each chamber 1 has an unloading pocket 15 with a flap 16, with which the outlet opening connecting the lower part of the body 2 with the pocket 15 can be adjusted. To move the flap 16 a handwheel 17 is installed. The outer wall of the pocket 15 is connected by a nozzle 18 with a pulp lift 19, discharge pipe of which is connected to the loading pocket 4. The discharge pockets 15 are interconnected by windows 20, the end wall of the last discharge pocket

15 is equipped with an outlet nozzle 21 o In the preheating compartment 9, cascade-inclined plates 22 and 23 are installed between the aerators 11 of the primary and 12 preheater flotation. Plate 22 is located under the preheater flotation aerators 12 at an angle that exceeds the angle of repose of the enriched material in the liquid phase. Plate 23 is also oriented at an angle greater than the angle of repose of the enriched material in the liquid phase, and its lower edge is located directly above the main flotation aerators 11. The length of the plates 22 and 23 is chosen equal to the length of the chamber 1 of the machine, and their width is such that they jointly overlap the cross section of the cleaner cell 9 of the machine. In the main flotation compartment 8 above the aerators 11, a visor 24 is provided to prevent the aerated slurry from entering compartment 8 main flotation into compartment 9 of the cleaner cell flotation "Bays 8 and 9 communicate with each other through a window 25 o

Machine for foam separation works as follows

The pulp treated with reagents through the boot pocket 4 through the distribution peaks 5 enters the compartment 8 of the main flotation chamber 1, where with the help of aerators 11 intensive aeration is maintained. cleaner networks, to the aerators 12 of which much less air is supplied than to the aerators 11 o With weaker aeration, part of the foam is demineralized and cleaned of mechanically discharged hydrophilic particles. The finished foam product flows into the chute 6, the unplanted material falls onto the inclined plate 22, and then onto the plate

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23 and flows through window 25 into compartment 8 of the main flotation, where it is again picked up by an aerated stream of pulp and carried to the foam layer. The material with a part of the liquid phase settled on the bottom 3 through an outlet orifice regulated by the flap 16 enters the discharge pocket 15 and then is pumped into the loading pocket 4 of the next chamber 1 by the pulp lifter 19 (1), due to the pyramidal downwardly narrowing shape of the lower part of the chamber the outlet opening is compacted. The excess liquid phase can freely flow from the chamber into the chamber through the window 13. When the machine is stopped, the slurry is removed through the injection port into the discharge pockets - 15 and m through the discharge port 20 - in the industrial sewage plant.

Claims (1)

Invention Formula 1, Machine for foam separation, autom., No. 599849, characterized in that, in order to increase the extraction and content of the useful component in the concentrate by increasing the number of circulation of the material to be floated in each chamber of the machine, the machine is equipped with inclined plates cascaded in each compartment of the cell cleaner flotation between the aerators of the main and cell cleaner flotation at an angle greater than the angle of repose of the enriched material in the liquid phase, with the lower edge of the most buried plate located a wife directly over the main flotation compartment aerators, 2, Machine pop 1, characterized in that each compartment of the main flotation is equipped with a baffle goat installed above the aerators of this compartment. Nutrition Fue. R