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Titanium placer mineral processing and tailing fast reclamation method

A technology for titanium placer and tailings, which is applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems that the economy cannot meet production needs, it is difficult to form large-scale mining, and the safety hazards of tailings ponds. The effect of reducing tailings pond capacity, solving transportation cost problems and reducing reclamation costs

Inactive Publication Date: 2015-03-11
YUNNAN COPPER GRP TITANIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Titanium placer mining and beneficiation currently use a combined gravity-magnetic process to obtain ilmenite concentrate and iron concentrate. Mine reclamation is to level the goaf, add fertilizer to solve the problem of soil depletion, and plant plants suitable for local growth. The purpose of reclamation has been achieved, but there are still potential safety hazards in the tailings pond. If not dealt with in time, it will cause damage to the ecological environment
In addition, because the value of titanium concentrate is low, the mine belongs to an open-pit mine, the depth of the mine is shallow, and the distribution is wide, it is difficult to form a large-scale mining, and it is difficult to meet the production needs economically. Therefore, it is necessary to solve the problem of tailings dehydration, tailings or slurry. Transportation issues to form simultaneous mining, simultaneous reclamation

Method used

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  • Titanium placer mineral processing and tailing fast reclamation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) TiO 2 Titanium sand ore with a content of 8.1% is screened through a vibrating screen to remove solid minerals larger than 8 mm to obtain the residue;

[0019] (2) Mix the residue of step (1) with water through a twin-shaft mixer for slurry adjustment to obtain a slurry with a concentration of 28%;

[0020] (3) The ore slurry obtained in step (2) is finely screened by a spiral groove separator to remove ores larger than 1.5 mm;

[0021] (4) The finely screened ore pulp in step (3) is subjected to strong magnetic desliming at a magnetic field strength of 0.65T to obtain tailings pulp and TiO 2 Coarse titanium concentrate with content >28%;

[0022] (5) Concentrating and dehydrating the tailings slurry obtained in step (4) with a vibration dehydrator to obtain dehydrated tailings with a moisture content of 12%;

[0023] (6) The dewatered tailings obtained in step (5) are tiled for mine reclamation, wherein the tile thickness is 1 meter. The economical wood chestnu...

Embodiment 2

[0025] (1) TiO 2 Titanium sand ore with a content of 8.5% is screened by a vibrating screen to remove solid minerals larger than 8 mm to obtain the residue, which is used for the wall masonry of stepped reclamation;

[0026] (2) Mix the residue of step (1) with water through a twin-shaft mixer for slurry adjustment to obtain a slurry with a concentration of 29.3%;

[0027] (3) The ore slurry obtained in step (2) is finely screened by a spiral groove separator to remove ores larger than 1.5 mm;

[0028] (4) The finely screened ore pulp in step (3) is subjected to strong magnetic desliming at a magnetic field strength of 0.8T to obtain tailings pulp and TiO 2 The crude titanium concentrate with a content of 28.2%, the crude titanium concentrate is sent to the beneficiation process for beneficiation;

[0029] (5) Concentrate and dehydrate the tailings slurry obtained in step (4) with a vibration dehydrator to obtain dehydrated tailings with a moisture content of 15%, and return...

Embodiment 3

[0032] (1) The titanium placer is screened through a vibrating sieve to remove solid minerals larger than 8 mm to obtain the residue, and the solid minerals are used for the wall masonry of stepped reclamation;

[0033] (2) Mix the residue of step (1) with water through a twin-shaft mixer for slurry adjustment to obtain a slurry with a concentration of 35%;

[0034] (3) The ore slurry obtained in step (2) is finely screened by a spiral groove separator to remove ores larger than 1.5 mm;

[0035] (4) The finely sieved pulp in step (3) is subjected to strong magnetic desliming at a magnetic field strength of 0.75T to obtain tailings pulp and TiO 2 Coarse titanium concentrate with a content of >28%, the crude titanium concentrate is sent to the beneficiation process for beneficiation;

[0036] (5) Concentrate and dehydrate the tailings slurry obtained in step (4) with a vibrating dehydrator to obtain dehydrated tailings with a moisture content of 10%, and return the dehydrated w...

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Abstract

The invention discloses a titanium placer mineral processing and tailing fast reclamation method. According to the method, titanium placer is subjected to slurry mixing after preliminary screening, then, high-magnet desliming is carried out after fine screening, tailing pulp and coarse titanium concentrate with the TiO2 content being greater than 28 percent are obtained, the tailing pulp is subjected to concentration dehydration, dehydrated tailings with the moisture content being 10 to 15 percent are obtained, and the dehydrated tailings are subjected to mine reclamation in a flat pavement mode or a step mode. The method provided by the invention has the advantages that the TiO2 content in the dehydrated tailings is similar to that of the traditional gravity and magnetic associated process, the titanium mining and dressing recovery rate can be ensured, the requirements of resource comprehensive utilization are reached, the simultaneous mining and the simultaneous reclamation can be realized, the goal of fast reclamation is achieved, the problem of high transportation cost of tailings or tailing pulp is solved, and the reclamation cost is greatly reduced. Any chemical reagent is not added into the titanium placer mining and dressing processes, no pollution is cased on soil, the tailings are adopted for reclamation, the soil does not need to be improved, grass and plants can be directly planted for reclamation, the water consumption by the method is low, and the method is particularly suitable for the mining of titanium placer mine lack of water resources.

Description

technical field [0001] The invention relates to a method for rapid reclamation of titanium placer ore dressing and tailings, and belongs to the technical field of mining development. Background technique [0002] Titanium placer mining and beneficiation currently use a combined gravity-magnetic process to obtain ilmenite concentrate and iron concentrate. Mine reclamation is to level the goaf, add fertilizer to solve the problem of soil depletion, and plant plants suitable for local growth. The purpose of reclamation has been achieved, but there are still hidden dangers to the safety of tailings ponds. If not dealt with in time, it will cause damage to the ecological environment. In addition, because the value of titanium concentrate is low, the mine belongs to an open-pit mine, the depth of the mine is shallow, and the distribution is wide, it is difficult to form a large-scale mining, and it is difficult to meet the production needs economically. Therefore, it is necessary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 王维昌周天华祝永红
Owner YUNNAN COPPER GRP TITANIUM CO LTD
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