Re-dressing utilizing method for non-ferrous metal tailings

A technology for non-ferrous metals and tailings, applied in flotation, solid separation, etc., can solve the problems of unreasonable development and utilization of tailings, reasonable process flow, unqualified concentrate grade, narrow mining and selection range, etc., to reduce drug pollution and Hazards of slime, realization of recovery rate, effect of high recovery rate

Inactive Publication Date: 2006-08-09
上海维莎宝矿产设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no enterprise that industrializes the development and utilization of tailings in our country. Many concentrators know that there are certain residual valuable components in their tailings, but they fail to achieve success by adopting conventional equipment and technological processes. , that is, the grade of the concentrate is unqualified. Only folks use heavy flotation equipment such as shaking tables, glass-steel spiral chutes, felt chutes, and A-type flotation machines and simple processes to engage in some small-scale comprehensive utilization of tailings, and mining The selection range is narrow and the enrichment ratio is low. The reason is that there is no reasonable process for the rational development and utilization of tailings.

Method used

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  • Re-dressing utilizing method for non-ferrous metal tailings

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Embodiment 1

[0011] For the treatment of Xinmiao tailings in Yingjing, Ya'an, Sichuan, the plant is about 40KM away from Yingjing County, with a daily processing capacity of 200T / day. The tailings dam is stacked along the Yinghe River with block stone cofferdams, with a storage capacity of 200,000M 3 , The tailings stacking time is from 1972 to the present, the average fineness of the tailings is 200 mesh, the muddy part accounts for 30%, and the deep muddy part accounts for 15%. When processing, first put the old tailings into the slurry tank, inject water and stir them into a slurry, and then put the slurry into a vertical flotation machine for classification and re-election through two-stage series scavenging to obtain a mixture of Pa, Zn, and S. Coarse concentrate, of which Zn25%, S38%, Pa19%, and the rest are impurities, and then through A-type machine-pressed sulfur flotation lead and zinc selection and fine grinding to obtain Pb, Zn mixed concentrate, of which Pb29%, Zn32%, bottom fl...

Embodiment 2

[0013] Put the old tailings into 10 pulping tanks for pulping treatment. The garbage and mud in the old tailings are screened out during the pulping process, and then prepared into a slurry with a concentration of 30%. After the spiral mixer stirs evenly, it enters the next processing procedure. After the slurry flows through the classifier, the suspended part of the overflow is processed by a vertical compound flotation machine. When the selected object reaches a certain grade, the coarse concentrate foam is discharged. Then the ore pulp is classified and re-selected, and the medium-coarse particles above 120 mesh in the ore pulp are extracted by a classifier, and the precipitated valuable components are extracted by shaking table re-selection, and a large amount of waste such as gangue is discarded, and then sent to a ball mill for grinding to obtain medium At the same time, the overflow part of the classifier is treated by the vertical compound high school flotation machine...

Embodiment 3

[0015] Take out the old tailings from the tailings dam, then pour water into the slurry mixing tank and stir to form a slurry with a concentration of 35%, while the garbage and mud in the old tailings are screened out during the slurry mixing process, and then After being evenly stirred by the spiral mixer, the ore pulp is classified, and the overflow part after classification is subjected to flotation treatment, and the medium and coarse ore particles larger than 120 mesh in the ore pulp are subsequently settled, and are transferred by the grading spiral blade and dehydrated to the slurry mixing Slurry in the barrel, and then the sorting object (that is, the middle ore) after the shaker treatment, and a large amount of waste rocks are removed, and then the coarse concentrate obtained after the classification is foamed and the middle ore obtained after re-selection is classified and refined again. Grinding to further dissociate the single crystal and intergrowth; the overflow p...

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Abstract

This invention relates to a recleaning using method of non-ferrous metal tailings, its feature is that the procedures of the method said are as following: a. obsolescence tailings are selected from tailings dam, then ore magma is agitated with water in conditioning pool. b. the magma is stage treated, then flotation treatment is done to overflow part, macrograin part is selected again. c. the ore foam and middlings got from reelecting after classification are done another calssificaiton and fine grinding. d. the overflow part from procedure c is flotation treated, then finished ore product is got after progressive enrichment. The waste water in tailings can be eliminated by using segregation processing, and damage of argillization matter and medicine pollution. Mineral grain120-300 items can be large treated in classification and reelection. Its accommodation limit is wide, then the monomer is liberated after again classification and fine grinding of the foam and middlings so the concentration ratio is heightened and high recovery is realized.

Description

Technical field: [0001] The invention relates to the technical field of re-selection and utilization of tailings, in particular to a method for re-selection and utilization of obsolete non-ferrous metal tailings. Background technique: [0002] Due to the non-renewability of mineral resources, and with the acceleration of human civilization, the demand for material resources is increasing, and mineral resources are becoming less and less, so the comprehensive utilization of residual metals in tailings is particularly important. At present, there is no enterprise that industrializes the development and utilization of tailings in our country. Many concentrators know that there are certain residual valuable components in their tailings, but they fail to achieve success by adopting conventional equipment and technological processes. , that is, the grade of the concentrate is unqualified. Only folks use heavy flotation equipment such as shaking tables, glass-steel spiral chutes, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02
Inventor 乔素钦刘巽珑
Owner 上海维莎宝矿产设备有限公司
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