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Mine waste treatment process

A technology of mine waste and treatment process, applied in mining equipment, solid waste removal, filling and other directions, can solve the problems of goaf hazards, land occupation, impact on living and living environment, etc., to protect the ecological environment, improve recycling Utilization rate, the effect of avoiding ground subsidence

Inactive Publication Date: 2016-09-21
安徽金联地矿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of society, there is more and more demand for energy, mines are developed all over the place, useful materials such as ores are effectively used, and by-products brought about by mining, abandoned ores and other waste materials are abandoned. Acidic, long-term accumulation of abandoned waste has caused a relatively large impact on the environment, and at the same time occupied a large area of ​​land, affecting people's life and living environment
[0003] On the one hand, mine development promotes economic development and social progress; Empty areas also present potential hazards for people

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A mine waste treatment process, the process includes the following steps:

[0020] (1) Pretreatment: The mine waste is crushed through a filter with a diameter of 20mm under high pressure, and then the filtered waste is crushed by a ball mill, the particle size of the waste is controlled to be 3mm, and the surface foreign matter is cleaned by soaking and air drying in turn;

[0021] (2) Mixing and stirring: Put the pretreated waste into the stirring device, and add bauxite, bentonite, fly ash, and add water every 15 minutes, and stir for 1 hour at 60°C to form a slurry;

[0022] (3) Mixed sedimentation: The mixed and stirred slurry is introduced into the cyclone, and the slurry is concentrated and precipitated through the high-speed separation of the hydrocyclone, and then introduced into the coagulation tank, where the feed of the hydrocyclone is The concentration is controlled at 20%, the frequency is controlled at 50Hz, and the inlet and outlet pressure is controlled at 1 k...

Embodiment 2

[0027] A mine waste treatment process, the process includes the following steps:

[0028] (1) Pretreatment: The mine waste is crushed through a filter with a diameter of 30mm under high pressure, and then the filtered waste is crushed by a ball mill, the particle size of the waste is controlled to 5mm, and the surface foreign matter is cleaned by soaking and air drying in sequence;

[0029] (2) Mixing and stirring: Put the pretreated waste into the stirring device, and add bauxite, bentonite, fly ash, and add water every 20 minutes, and stir for 2 hours at 70°C to form a slurry;

[0030] (3) Mixed sedimentation: The mixed and stirred slurry is introduced into the cyclone, and the slurry is concentrated and precipitated through the high-speed separation of the hydrocyclone, and then introduced into the coagulation tank, where the feed of the hydrocyclone The concentration is controlled at 30%, the frequency is controlled at 70Hz, and the inlet and outlet pressure is controlled at 2 kg...

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PUM

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Abstract

The invention discloses a mine waste treatment process, which comprises the following steps: pretreating, mixing and stirring, mixing and depositing, preparing filler and filling. The process disclosed by the invention makes the full use of the tailings and other wastes in mining processes, recovers and utilizes the wastes effectively, and fills goaves, therefore, avoids the surface subsidence in mining areas, protects the ecological environment, and improves the recycling ratio of resources. By filling the goaves, the process stores some active mineral substances that cannot be extracted out by the existing technologies and can be re-developed when the technologies mature in the future, therefore, sustainable development is realized.

Description

Technical field [0001] The invention belongs to the field of mine management, and in particular relates to a mine waste treatment process. Background technique [0002] With the development of society, the demand for energy is increasing. Mines are being developed everywhere, and useful materials such as ore are effectively used. By-products from mining, waste ore and other waste materials are abandoned. In general, waste materials are present. Acidic, long-term accumulation of abandoned waste has caused a relatively large impact on the environment, and at the same time invaded a large area of ​​land, affecting people's lives and living environment. [0003] On the one hand, mine development has promoted economic development and social progress, but on the other hand, it has caused environmental pollution. The large amount of tailings not only takes up a lot of land, but also wastes a lot of money for regular maintenance. At the same time, a large amount of mining caused by mining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00E21F15/00
CPCB09B3/00B09B5/00E21F15/005
Inventor 秦月琴任飞孙忠伟明桂林吴海东王前张传琦牛杏杏王赞王代飞
Owner 安徽金联地矿科技有限公司