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Ecological management method of gold ore tailings after hydrometallurgy

A technology of hydrometallurgy and ecological management, applied in the field of smelting, can solve problems affecting roads and surrounding villages, fertile fields and forests, easy to form sandstorms, dust, human respiratory hazards, etc., to achieve low maintenance and management costs, and is conducive to growth and construction Effect with few seasonal restrictions

Inactive Publication Date: 2014-05-28
ZIJIN MINING GROUP
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to cause large-scale land damage due to mining, which is a very serious problem that is increasingly valued both at home and abroad. In the natural state, debris flows and gullies are easily formed on the slag slope after raining, causing large-scale landslides. Large-scale landslides affect roads and fertile fields and forests in surrounding villages, and are extremely destructive; in dry seasons, sandstorms and dust are easily formed, causing harm to the human respiratory tract

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  • Ecological management method of gold ore tailings after hydrometallurgy

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Embodiment 1

[0018] In the first step, after spraying by hydrometallurgical spraying technology, the tailings waste residue needs to be pulled to the specified discharge point for accumulation. The tailings residue of this kind of gold mine is crushed into irregular crushed ore of 8-20cm. Therefore, the particle size is small and relatively uniform, weakly alkaline, and the pH value is 8.0-9.5. The main body of the soil is a variety of mineralized and oxidized medium-fine-grained granite, gold minerals have been leached and recovered, and the content of heavy metals such as copper and silver is extremely low. . It has loose structure, low strength, high sand and gravel content, very little soil, barren soil, poor water holding capacity, strong water permeability, weak resistance to softening, and poor shear strength, so the tailings form a stable slope. In addition, the terrain of the mining area is strongly cut, the terrain is steep, and the shape of the mountain is steep, so they general...

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Abstract

The invention relates to a method of carrying out ecological management on mineral waste residues left by gold exaction in hydrometallurgy, in particular to an ecological management method of gold ore tailings after hydrometallurgy. According to the method, a land consolidation and plant seed selection ecological restoration treatment technology is utilized, a large amount of mineral separation solid wastes after hydrometallurgy crushing mineral separation are treated, the regional ecological functions are recovered, the water and soil loss and the atmospheric dust are effectively controlled, excellent ecological benefits and social benefits are realized, and the method has the characteristics of low cost and rapid effect.

Description

1. Technical field [0001] The invention relates to the smelting industry, in particular to a method for ecological treatment of slag left by gold extraction by hydrometallurgy, in particular to an ecological treatment method for gold mine tailings after hydrometallurgy. 2. Background technology [0002] Since the mining of the Zijinshan gold-copper mine, after continuous exploration, it has sought low-cost, low-energy consumption, and high-efficiency mining and beneficiation methods. At the same time, it will produce a large amount of beneficiation waste slag. If these waste residues are not handled properly, the piles of solid waste residues will easily cause large-scale soil erosion, or even mudslides, which will have a huge impact on the natural ecology. [0003] Studies have shown that in most cases, the natural succession process of vegetation in mine abandoned land is relatively slow, and it generally takes 50-100 years to obtain satisfactory vegetation coverage. On ...

Claims

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Application Information

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IPC IPC(8): A01G1/00E02D3/00
Inventor 钟均华黄福才钟吉祥
Owner ZIJIN MINING GROUP
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