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Waste rock-dry tailing combined stockpiling method

A technology for dry tailings and waste rock, applied in the field of waste rock-dry tailings combined storage, can solve problems such as complex construction process, and achieve the effects of reducing costs, saving construction and operating costs, and reducing pollution

Pending Publication Date: 2022-03-01
WANBAO MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This design still belongs to the category of traditional tailings stockpiling, and there are problems such as complex construction technology

Method used

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  • Waste rock-dry tailing combined stockpiling method
  • Waste rock-dry tailing combined stockpiling method
  • Waste rock-dry tailing combined stockpiling method

Examples

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Embodiment 1

[0035] The waste rocks and dry tailings and other wastes mined in the mine are jointly stored in the way of "vertical layering and horizontal slitting".

[0036] The vertical stratification, that is, the waste rock and dry tailings are stored on multiple steps, and the height of a single step is between 5-12m. Among them, before the joint pile construction, a large waste rock layer is laid on the bottom of the pile first, and after rolling, it will be used as a seepage drainage layer at the bottom of the combined pile yard to ensure smooth drainage of the base, thereby improving the overall stability of the combined pile.

[0037] The horizontal slitting means that waste rocks and dry tailings are distributed alternately in strips at a certain interval in the plane direction. Among them, when each step is piled up, hard rocks are used to pile up waste rock dams on the periphery first, and the slope angle of the dam body should be smaller than the natural repose angle of waste ...

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Abstract

The invention relates to a waste rock-dry tailing combined stockpiling method, and belongs to the field of mine solid waste disposal. The method comprises the following steps that a barren rock water seepage layer is laid along the outer side of the site selection position of the barren rock-dry tailing combined storage yard; taking the barren rock permeable layer as a base, building a step above the barren rock permeable layer, and arranging a large barren rock dam on the periphery of the step; dry tailings and barren rocks are stacked along the large barren rock dam from outside to inside, so that the dry tailings and the barren rocks are alternately distributed in a strip mode according to a certain interval in the plane direction; after the dry tailings and the barren rocks are compacted in a rolling mode, a two-stage step is built on the layer, and a large barren rock dam is arranged on the periphery of the step; and when the combined storage yard reaches the designed discharge amount, the waste rocks, the dry tailings and other mine wastes are jointly stockpiled in a vertical layering and transverse striping mode, so that the safety problem of combined stockpiling of the mine waste rocks and the dry tailings is effectively solved, and the potential safety hazards of landslide of a dump and dam break of a tailing pond are eliminated.

Description

technical field [0001] The invention belongs to the field of mine solid waste disposal, and in particular relates to a combined storage method of waste rock and dry tailings. Background technique [0002] During the mining process of this mine, a large amount of waste rock is often produced and stored in the dump. Taking my country as an example, the annual discharge of waste rock in mines exceeds 1 billion tons, covering an area of ​​more than 2,000 hectares. The tailings, as the waste after the sorting operation of the concentrator, usually exist in the form of ore slurry. my country is one of the countries with the largest tailings discharge in the world, and the vast majority of mines store tailings by building tailings ponds. Due to the low concentration of tailings mortar discharged from the concentrator, the stability of the tailings pond is directly affected by the high potential energy and fluidity of the tailings mortar in the pond, and dam failure accidents are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/18E02D3/10
CPCE02D17/18E02D3/103
Inventor 李涛刘敬智沈汉李路梁昌鸿宋洪勇祁赟朴周旭
Owner WANBAO MINING
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