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frame mining method

A mining method and frame-type technology, which are applied in the field of frame-type mining, can solve the problems of ore powder dilution, large losses, and large safety risks, and achieve the effects of reducing dilution losses and improving operation safety.

Active Publication Date: 2021-05-04
内蒙古金陶股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this disclosure is to provide a frame-type mining method to solve the problems of mineral powder dilution, large losses and high safety risks during mining in related technologies

Method used

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Embodiment Construction

[0032] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0033] In this disclosure, unless otherwise stated, the used orientation words such as "upper" and "lower" refer to the upper and lower of the actual orientation of the stope. For details, please refer to Figure 2 to Figure 5 direction of the drawing.

[0034] First of all, it needs to be explained that when mining, refer to figure 2 Firstly, a vertical sky shaft 42 is opened from the middle of the ore block 10 for ventilation and as a transportation channel, and a bottom roadway is provided at the bottom of the ore block 10 for transporting the collapsed ore after mining. The method provided in the present disclosure is applied after the raised shaft 42 ...

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Abstract

The disclosure relates to a frame-type mining method, comprising the following steps: a. Arranging a concrete bottom in the bottom roadway below the ore block, and arranging a slip in the concrete bottom; b. Blasting layer by layer from the bottom of the ore block; b1. After the first blasting, the ore is transported out through the chute; b2. After the ore is transported out, the middle concrete roof is arranged in the stope space; c. After each blasting, the surrounding rocks will be collapsed from the bottom on both sides of the ore block; d. After the ore is completely transported out, a concrete roof will be placed above the uppermost middle concrete roof; e. Pedestrians form concrete columns along the way. Through the above technical scheme, the ore blocks are blasted layer by layer, and after each blasting and the ore is transported out, the working safety can be improved by setting the multi-layer intermediate concrete roof to support the stope space. After the blasting is completed, the concrete column is set so that the entire stope space is supported by a rectangular frame formed by the concrete column, the concrete bottom and the upper concrete roof, thereby effectively and stably compressing.

Description

technical field [0001] The present disclosure relates to the technical field of mining, and in particular, relates to a frame-type mining method. Background technique [0002] According to the geological conditions of the ore lode and the type of the ore lode itself, different mining methods will be adopted in the prior art. For thin veins, such as gold mines with a width of 0.5 meters to 1 meter, the wall cutting and filling method is usually used for mining. In the related technology, the wall cutting and filling method generally first collapses the ore lode once, and after recovering the ore, then collapses the surrounding rock once, and uses the surrounding rock to fill the stope space where the original ore is located, and so on until the mining of the ore block is completed. [0003] However, during the mining process, due to the narrow ore veins, the amount of falling ore is small, and the surrounding rock is easily mixed into the ore pile after the surrounding rock ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22E21D11/10E21F13/04E21D15/00F42D3/04
CPCE21C41/22E21D11/10E21D11/107E21D15/005E21F13/04F42D3/04
Inventor 张长征李达高延龙王成龙王军张孝章邦琼张建华马学社张洪廷陈万龙杨秀森董连福王寿刚刘凤君王士强
Owner 内蒙古金陶股份有限公司
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