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Complete type artificial bottom plate manufacturing method and application

A bottom plate and complete technology, applied in the construction method and application field of a complete artificial floor plate, can solve the problems of non-environmental protection, leakage of rare earth mother liquor, groundwater pollution, etc.

Active Publication Date: 2021-12-24
GANZHOU NONFERROUS METALLURGICAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the full-cover type, the liquid collection adopts the artificial floor technology, specifically setting a roadway at the floor of the ore body, and drilling diversion holes on the roadway, and recovering the rare earth mother liquor through the diversion holes and the roadway, but this method is easy Leakage of rare earth mother liquor, causing groundwater pollution, does not meet environmental protection requirements, and causes low recovery rate of rare earth

Method used

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  • Complete type artificial bottom plate manufacturing method and application
  • Complete type artificial bottom plate manufacturing method and application
  • Complete type artificial bottom plate manufacturing method and application

Examples

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Embodiment 1

[0061] In this embodiment, a rare earth hilltop with a diameter of 30-60m is taken as an example. The average thickness of the topsoil layer is 2.5m, and the average thickness of the ionic rare earth ore layer is 7m. According to geological exploration, the ore-bearing ore-bearing layers are all present in the fully weathered layer, with semi-weathered layer and bedrock underneath, and the bedrock is buried deep. According to the mining geological conditions, the rare earth is leached by in-situ leaching process, and the bottom structure of the recovered mother liquor is determined to adopt a complete artificial floor.

[0062] The construction method of the complete artificial floor is as follows:

[0063] 1. Excavate the main roadway in the middle of the floor of the ore body. The main roadway is rectangular with a size of 1.8m (height) × 1.2m (width). Digging from one side of the mountain to the other side is conducive to ventilation. Before digging through, use a small lo...

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Abstract

The invention relates to the technical field of mining, and provides a complete type artificial bottom plate manufacturing method and an application. According to the complete type bottom plate provided by the invention, diversion holes do not need to be drilled, rare earth mother liquor is led out in a roadway access mode, waterproof cloth is laid at the bottom of the main roadway and the bottom of the access, the waterproof cloth forms a whole at the bottom of an ore body, and therefore leakage of the rare earth mother liquor is avoided, and the problem that underground water ammonia nitrogen exceeds the standard is solved. When the complete type bottom plate is applied to an in-situ ore leaching process of the ionic rare earth ore, the rare earth recovery rate can be greatly increased, environmental pollution is avoided, and the economic benefits of mine enterprises are increased.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a method and application of a complete artificial floor. Background technique [0002] Rare earth-bearing granite or volcanic rocks have been weathered for many years to form clay minerals, and the dissociated rare earth ions are adsorbed on the clay minerals as hydrated ions or hydroxyl hydrated ions, which are called ion-adsorbed rare earths. Ion-adsorbed rare earths are unique, valuable, limited and non-renewable strategic resources in China. They have the characteristics of high content of medium and heavy rare earth elements, simple extraction process and low radioactivity. They are important supporting materials in high-tech fields. [0003] At present, the main methods of ion adsorption type rare earth mining are in-situ leaching technology and heap leaching technology. The heap leaching process is a method of pouring ore leaching liquid on the surface of the piled ore soi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/02C22B3/04C22B59/00
CPCC22B3/02C22B3/04C22B59/00Y02P10/20
Inventor 李春杨勇叶光祥李健张树标曾凡珍周凌波钟建民
Owner GANZHOU NONFERROUS METALLURGICAL RES INST
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