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High sublevel double-hexagon caving mining method

A caving mining and double hexagonal technology, which is applied in the field of high-section double hexagonal caving mining, can solve the problems of large amount of mining and cutting works, high loss rate and high cost, so as to improve economic benefits, improve recovery rate, The effect of reducing the chunk rate

Inactive Publication Date: 2019-02-19
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Abstract
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AI Technical Summary

Problems solved by technology

The segmented caving method without pillars that is currently widely used requires a large amount of mining and cutting work, high cost, and a high loss rate

Method used

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  • High sublevel double-hexagon caving mining method
  • High sublevel double-hexagon caving mining method

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as Figure 1-2 As shown, a high segmental double hexagon caving mining method, the method is carried out according to the following steps:

[0023] Step 1: Use the upper and lower plate combined mining standard system to carry out mining and cutting, the cutting roadway 11 is arranged along the boundary of the upper wall of the ore body, and the cutting shaft 10 and the cutting roadway 11 are combined to form the cutting groove 13 space, and the cutting shafts 10 are staggered between the sections Arrangement, with the cutting well 10 as the free surface, the cutting groove 13 with a width of 4-5m and a height of 14m is formed by blasting in stages, and the slotting hole 9 required for the cutting groove 13 has a hole diameter of 60mm, a side hole angle of 60°, and a row spacing of 1.0m. The hole bottom distance is 1.6-1.8m, and ...

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Abstract

The invention belongs to the technical field of mining, and particularly relates to a high sublevel double-hexagon caving mining method. The method comprises the following steps of 1, preliminary mining cutting; 2, rock drilling; 3, exploding and ore breaking; and 4, ore removing. The method integrates the advantages of the sublevel caving without sill pillar method, the block stoping method, thehigh-end wall drawing method and other methods, and therefore the recovery rate of pure ore is improved, and the problem of excessive loss and dilution is solved.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a high-section double-hexagon caving mining method. Background technique [0002] With the gradual depletion of high-grade ore deposits and the increasing emphasis on environmental and social issues, the mining industry will become less and less attractive. In order to maintain the sustainable development of the mining industry, the mining industry has shifted from large-scale mining of high-grade ore deposits to Mining of low-grade and large-reserve deposits. [0003] The mining methods of metal deposits are generally divided into three categories: open field method, caving method and filling mining method. In the case of poor mining technical conditions, it is necessary to ensure the safety of mining operations and control costs, and the caving method is often used. At present, the sub-section caving method without pillars, which is widely used, has a large amount ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C37/00E21C41/22
CPCE21C37/00E21C41/22
Inventor 周健强焦满岱刘财林张亭张海磊高志荣张睿孟慧媚
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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