Underground cutting mining method of process ore

Abstract

The invention discloses an underground cutting mining method of process ore. The method concretely comprises the following steps: (1) firstly, digging a tunnel in the side of an ore body, and transversely tunneling from the tunnel to the ore body so as to form a chamber access, wherein the chamber access penetrates through the ore body, and the upper and lower sides of the ore body are provided with two free surfaces; (2) drilling in one free surface, and respectively drilling in four corners of the free surface so as to obtain four drill holes which penetrate through the two free surfaces; (3) passing a wire saw through the drill holes in the same side; (4) connecting the wire saw to a wire cutter, starting the wire cutter, driving the wire saw to cut the ore body between the drill holes, so that the ore body is completely separated from surrounding ore bodies or surrounding rocks. The underground cutting mining method is simple in operation, small in labor intensity, good in safety, and high in economic benefits. The ore exploited by the method disclosed by the invention is regular in shape, large in size and high in process value.

Description

technical field [0001] The invention relates to a mining method, in particular to an underground cutting mining method for craft mines such as pyrophyllite, fluorite and jade, and belongs to the technical field of mining. Background technique [0002] At present, with the continuous improvement of people's material living standards, high requirements are also put forward for spiritual life, and the pursuit of artworks is also changing with each passing day. Carving high-art handicrafts must have high-quality craft materials. Since high-grade and high-quality craft materials of minerals are often stored underground, underground mining is often due to factors such as less free surface of the ore body, narrow mining operation space, and high hardness of the ore body. In order to separate the ore body from the ore body or surrounding rock, blasting is generally used for mining. Due to the blasting method for mining, although some high-quality lump ore is relatively large in siz...

AI Technical Summary

Problems solved by technology

Due to the blasting method for mining, although some high-quality lump ore is relatively large in size, it can be used as a process material, but due to the impact of blasting vibration, the surface and internal structure have been damaged, and even cracks have been generated, so the lump ore cannot be used as a whole. The use of process materials; at the same time, the shape of the lump ore mined by blasting is extremely irregular, the volume is relatively small, and the process value is low

For example, mineral resources such as pyrophyllite and fluorite are used as materials for crafts and artworks, which are often relatively small in size, and the craft value of resources is low.

Some underground process mines are mined manually, and intensive drilling is used around the mined process ore body, and then manual beating is used to separate the process ore body from the surrounding area. Although artificially mined process mines are relatively destructive to the internal structure of the ore body less, but the labor intensity is high, and at the same time, where the craft ore body cannot be hammered manually, the process ore body is still connected with the internal ore body or surrounding rock, which cannot ensure that all high-quality process materials are mined

Images