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Machine-column-machine rapid and efficient zinc flotation method and system

A column machine and fast technology, applied in the field of fast and efficient zinc separation method and system of column machine, can solve the problems of high resource recovery rate, high beneficiation cost, high reagent consumption, etc., achieve smooth process, prolong flotation time, and operate Reliable and convenient effect

Inactive Publication Date: 2019-04-19
南京银茂铅锌矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional flotation process is difficult to further improve the recovery rate of zinc ore dressing and the grade of concentrate, which makes it difficult to improve the resource recovery rate. The equipment consumes a lot of energy, and the consumption of reagents is high, resulting in high cost of mineral processing, and there is also serious flotation overflow. And other issues

Method used

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  • Machine-column-machine rapid and efficient zinc flotation method and system

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Experimental program
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Effect test

Embodiment 1

[0034] The method of fast and efficient zinc selection by the column machine of this machine includes the following steps:

[0035]A. The slurry of lead tailings (concentration is about 40%) is sucked into the No. 1 lifting mixing tank, adding copper sulfate 300-400g / t to activate zinc minerals, adding lime 3000-4000g / t (pH=11.0-11.5), adjusting pH, Inhibit pyrite, add pine oil 10-20g / t for foaming, stir for 10 minutes, then enter No. 2 stirring, add butyl xanthate 150-200g / t as zinc mineral collector, stir for 10 minutes, pass through the pipeline Enter the fast selection flotation machine for a fast roughing, and then pass through the first selection flotation machine and the second selection flotation machine for two fast selections to obtain zinc concentrates containing 55-57% zinc , The recovery rate of zinc operation is about 60%. Add lime 1000-1500g / t and pH =12.0-12.2 to the secondary selection flotation machine to adjust the pH and further suppress pyrite. The tailing...

Embodiment 2

[0039] The column machine of this machine is a fast and efficient zinc separation system, including fast separation flotation machine 1, first selection flotation machine 2, second selection flotation machine 3, rough selection flotation column 4, selection flotation column 5, The first scavenging flotation machine 6, the second scavenging flotation machine 7, the third scavenging flotation machine 8;

[0040] The concentrate outlet of the quick separation flotation machine 1 is connected with the pulp inlet of the first concentration flotation machine 2, and the tailings outlet is connected with the pulp inlet of the rougher flotation machine 4;

[0041] The concentrate outlet of the first concentration flotation machine 2 is connected to the pulp inlet of the second concentration flotation machine 3, and the tailings outlet is connected to the pulp inlet of the quick separation flotation machine 1;

[0042] The concentrate outlet of the second concentration flotation machine...

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Abstract

The invention discloses a machine-column-machine rapid and efficient zinc flotation method. The method adopts the flotation procedure of one time of roughing and two times of concentration of a flotation machine, one time of roughing and one time of concentration of a flotation column and three times of sweeping of the flotation machine. Firstly, coarse particle zinc which is easy to float is rapidly produced through the flotation machine, then zinc which is floated in medium difficulty is produced in concentration of the flotation column through the flotation column, zinc which is very difficult to float is produced under synergy of the flotation column through the long-time excitation and capturing functions in the flotation machine, the floating time and procedure of the zinc minerals which are easy to float are shortened, the cyclic loss of the medium minerals is reduced, and the zinc minerals difficult to float have longer time and much chance to float. The method not only well solves the problem that the same kind of minerals have different floatability, but also solves the problem that zinc minerals of different size fractions have different floatability, achieves refine selection, remarkably improves the zinc recovery rate, achieves efficient zinc flotation, and has great importance significance for improving the zinc recovery rate and concentrate quality, saving energy, reducing consumption and achieving clean production.

Description

technical field [0001] The present invention relates to a method and system for beneficiation, in particular to a method and system for fast and efficient zinc beneficiation by column machine. Background technique [0002] Lead-zinc resources are important mineral resources in my country. There are nearly a thousand lead-zinc non-ferrous mines, mainly lead-zinc polymetallic sulfide ores. Generally, the grade of zinc is higher than that of lead, and the sales revenue of zinc in the mining of lead-zinc sulfide mines is average. Accounted for more than 60%. Zinc concentrate is the main raw material for the production of metal zinc and zinc compounds. How to make good use of limited zinc mineral resources and improve the recovery rate of zinc mineral processing is particularly important for both enterprises and countries. [0003] In lead-zinc non-ferrous metal mines, the traditional flotation process of zinc flotation in my country is 1 roughing + 3-4 sweeps + 2-3 selections t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00
CPCB03B9/00
Inventor 陈如凤缪建成范寻胡继华汤成龙马斌付伟
Owner 南京银茂铅锌矿业有限公司
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