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Mechanical continuous mining method for gently inclined thin ore body

A mining method and thin ore body technology, which is applied in the field of mechanized continuous mining of underground mines, can solve the problems of high production material consumption, low resource utilization, poor production safety, etc., achieve high production efficiency, solve mining problems, and ore loss low rate effect

Active Publication Date: 2011-02-16
CENT SOUTH UNIV
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Problems solved by technology

In the traditional mining method, for the mining of gently inclined thin veins, the problems faced by the wall caving method are complex mining procedures, low efficiency, high consumption of production materials, resulting in high mining costs; The problem is that the loss of ore pillars is relatively large, the ore recovery rate is low, and the utilization of resources is low. Sometimes support measures such as bolts are required, and the process is complicated, and personnel generally work under goafs or caving rock formations. , its production safety is poor

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  • Mechanical continuous mining method for gently inclined thin ore body
  • Mechanical continuous mining method for gently inclined thin ore body
  • Mechanical continuous mining method for gently inclined thin ore body

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 , in the forward and backward mining design drawings, a main uphill roadway 2 is arranged every 120m along the ore body, and the ore body is divided into 120m wide ore blocks. The mine room is arranged along the inclined direction, and the length of the mine room is The width is 120m, and the width is 57.5m. Two continuous ore pillars with a width of 8m are left in the mine room with a distance of 3m. The angle direction of 45° is divided into 5 stopes, each stope is 23m wide, and the rock drilling roadway 6 is arranged obliquely, which can reduce the inclination angle of the roadway and reduce the load of the scraper; , connected to the upper horizonta...

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Abstract

The invention discloses a mechanical continuous mining method for a gently inclined thin ore body. Based on the principle of lengthening the slope distance to reduce the angle, ore blocks are arranged in an inclined way, so that an angle smaller than the original inclination angle can be formed between a working plane and the horizontal plane, thus creating an operating space for a drill jumbo and a scraper; a return air shaft is arranged at the corner of one ore room so as to be communicated with an upper horizontal return airway; each ore room is provided with an orepass used for the transmission of ores in the ore room; and a tunnel is respectively excavated along the strike direction above and below each ore room, the upper tunnel is used for ventilation connection, and the lower tunnel is used for ore removal connection. The invention is especially applicable to the mining of the gently inclined thin ore body of an underground mine, mining preparation has no requirements for undercutting projects, and the drill jumbos and scrapers are used for the operation, thereby achieving the characteristics of high degree of mechanization, high production efficiency, full-thickness continuous mining and low ore loss rate.

Description

technical field [0001] The invention relates to a mechanized continuous mining method for underground mines, especially suitable for gently inclined thin ore bodies in underground metal mines. Background technique [0002] Due to the limitation of the ore body occurrence conditions, the mining of gently inclined thin ore bodies cannot realize self-slipping by gravity, and it is difficult to realize large-scale mechanized operations. Gently inclined thin ore bodies have always been regarded as a difficult-to-mining ore body. In the traditional mining method, for the mining of gently inclined and thin veins, the problem faced by the wall caving method is that the mining process is complex, the efficiency is low, and the consumption of production materials is high, resulting in high mining costs; The problem is that the loss of ore pillars is relatively large, the ore recovery rate is low, and the utilization of resources is low. Sometimes support measures such as bolts are req...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22E21C41/16
Inventor 周科平邓红卫胡建华李杰林郭旺雷涛
Owner CENT SOUTH UNIV
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