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Tailings resource recovery technology

A resource recovery and process technology, applied in recycling technology, mechanical material recovery, solid separation and other directions, can solve problems such as encroaching on large land, hidden dangers, and forming safety, achieving high metal recovery grade, high metal recovery rate, and environmental protection. The effect of pollution

Active Publication Date: 2015-08-19
西安特瑞钒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the tailings in our country are stored in the tailings dam by natural accumulation method, which not only occupies a large amount of land, pollutes the environment of the mining area and surrounding areas, and poses a safety hazard, but also causes a large amount of valuable metal and non-metal resources to be lost. severe constraints to development

Method used

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  • Tailings resource recovery technology
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Examples

Experimental program
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Effect test

example 1

[0120] The method according to the present invention is used to screen the tailings of the ultra-poor vanadium-titanium magnetite from an ultrabasic rock mass in a certain place in Hebei Province.

[0121] According to the test report of the testing department: the mineral content of the above mine tailings sand is as follows (100% in total): pyroxene minerals account for 47.59% of the tailings sand, amphibole minerals account for 18.53%, feldspar minerals account for 14.51%, ilmenite minerals Accounting for 5.87%, montmorillonite minerals accounted for 5.19%, chlorite minerals accounted for 1.75%, illite minerals accounted for 6.55%. It can be seen that there is no single mineral of magnetite in the tailings sand.

[0122]In the tailings treatment process of the prior art, there is almost no way to select iron fine powder that meets the requirements of industrial indicators from the above-mentioned ultra-poor vanadium-titanium magnetite tailings sand. Because based on common...

example 2

[0126] Sampling 32 tons of tailings in a mine for mineral processing test.

[0127] Utilize tailings recycling process according to the present invention, (the tailings sand of the same ore deposit industry type) beneficiation test result is:

[0128] The Tfe content is 8.52%; the refined powder grade is 65.67%; the tailings Tfe grade is 3.61%; the metal recovery rate of the beneficiation is 60.98%, and the yield is 7.9%.

[0129] In contrast: with the same tailings sand, the best indicators obtained by the tailings recovery process in the prior art are:

[0130] The Tfe grade of the tailings sand is 7.91%; the fine powder grade is also 65.76%, but the metal recovery rate of the beneficiation is 21.23%, and the yield rate is 2.46%.

[0131] It can be seen that the recovery rate of beneficiation metal obtained by the tailings recovery process of the present invention is 39.75% higher than the best index of 21.23%, and the yield is 5.44% higher than the current national best in...

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Abstract

The invention discloses a tailings recovery technology. The tailings recovery technology includes feeding ore pulp into a concentrating cylinder of a concentrating machine; driving the concentrating cylinder to rotate around own central axis to enable the ore pulp to stir and tumble in an inner chamber of the concentrating cylinder incessantly while the ore pulp flows; applying a magnetic field on the ore pulp by a magnetic field generator, and subjecting the ore pulp to precise separation by a separator to enable separated ores in the ore pulp to be attached to the inner wall of the concentrating cylinder to move upwards during ascent and descent under the action of the magnetic field so as to arrive at an ore discharging area; in the discharging area, enabling the separated ores to fall into a receiving groove of the concentrating machine and enabling other substances, except for the separated ores, in the ore pulp to enter a tailings trough of the concentrating machine from the bottom of the inner chamber of the concentrating cylinder and then enter a tailings conveying system.

Description

technical field [0001] The invention relates to environmental improvement and resource recovery, and more specifically, to a process for recovery of tailings resources and environmental control. Background technique [0002] As a mature industrial technology, mineral processing has a history of nearly a hundred years. However, in the case of the gradual reduction of rich ore resources, the existing mineral processing technology and equipment have serious problems of waste of mineral resources. [0003] In the current mineral processing industry, the existing equipment usually only screens and purifies a mineral with a relatively high content, and other minerals with a relatively low content are discharged as tailings waste, and all kinds of metal minerals contained in the tailings are not treated. The re-purification operation causes the loss and waste of a large amount of usable and valuable metal minerals, and a large amount of tailings is piled up and pollutes the surrou...

Claims

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Application Information

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IPC IPC(8): B03B9/06
CPCY02W30/52
Inventor 张宝祥
Owner 西安特瑞钒环保科技有限公司
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