A Upward Mining Method of Steeply Inclined Thin Ore Body

Abstract

The invention discloses an upper mining method of a steeply inclined thin ore body, and belongs to the technical field of underground mine mining. The mining method comprises the steps that the steeply inclined thin ore body is divided into inclined ore blocks, and by using a driving pulse interior inclined rampway as a channel of rock drilling and ore removal of a miniature rock drilling trolleyand a miniature carry-scraper, mechanical mining of the steeply inclined thin ore body is achieved; meanwhile, a pulse interior inclined rampway is used as an ore block rock drilling channel and alsoused as an ore removal channel of the adjacent ore blocks so as to simplify preliminary mining engineering; and in addition, according to the mining method, top columns are not reserved in the ore blocks, studdings only reserved on one sides of the ore blocks can be recycled in time in the layer mining process, and mineral resources are recycled to the utmost extent. The above processes can obviously improve the mining efficiency of the steeply inclined thin ore body, and compared with an existing mining method, the stope production capacity of the mining method can be improved by three times.

Description

technical field [0001] The invention belongs to the technical field of underground mine mining, in particular to an upward mining method of steeply inclined thin ore bodies. Background technique [0002] Steeply inclined thin ore bodies usually refer to ore bodies with a dip angle greater than 50° and an ore body thickness less than 5m. Based on domestic and foreign mining experience in non-ferrous, gold, and uranium mines, at present, the mining of steeply inclined thin ore bodies mostly adopts the shallow hole ore retention method and the wall cutting filling method. Mining of ore bodies that are not easy to agglomerate with a thickness of more than 2m and an inclination angle greater than 50°; when the thickness of the ore body is 0.8-1.5m, the wall-cutting filling method is often used. However, whether it is the shallow hole ore retention method or the wall cutting and filling method, it is necessary to use an air-leg rock drill to drill rock, and to use electric rakes ...

AI Technical Summary

Problems solved by technology

However, whether it is the shallow hole ore retention method or the wall cutting and filling method, an air leg rock drill is required to drill rock, and electric rakes and funnels are used to extract ore, so that the efficiency of both rock drilling, ore falling and ore extraction low

In short, the low level of modernization of rock drilling and mining equipment seriously limits the mining efficiency of the shallow hole ore retention method and the wall cutting and filling method.

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