Working face stoping and mining-stopping equipment withdrawal cooperative operation method realizing three-purpose of one roadway

Abstract

The invention relates to the field of coal mining, in particular to a working face stoping and mining-stopping equipment withdrawal cooperative operation method realizing three-purpose of one roadway.Combining with the problems of coal loss, high roadway cost, long connection time of working faces and the like in the layout of the end mining of an existing working face and a coal pillar recoveryworking face, the end mining is adopted without a special passage and a coal pillar, and a working face is directly connected with district rise or a main entry, thus a gob-side entry is automaticallyformed as a mining roadway of a coal pillar recovery working face; and with the advance of the coal pillar recovery working face, withdrawing frame by frame is carried out. Unlike a traditional technology, according to the working face stoping and mining-stopping equipment withdrawal cooperative operation method realizing the three-purpose of one roadway, the method of no special withdrawal passage, no coal pillar, no waiting connection between working faces and direct withdrawal equipment in the district rise or the main entry with a large cross section and an auxiliary transportation systemis adopted; and the arrangement mode can improve the mine stoping rate significantly, reduce the amount of roadway engineering and maintenance costs, and realize the efficient connection between thecoal pillar recovery working face and the last working face in a mining area or a belt area, so as to improve the production efficiency of a coal mine.

Description

technical field [0001] The invention relates to the field of coal mining, in particular to a collaborative operation method for realizing the retraction of working face recovery and shutdown equipment for three purposes in one lane. Background technique [0002] When mining at the last working face in the mining area or belt area, the recovery of coal pillars up the hill or in the main road is generally considered. The common final mining techniques include two types: 20-40m protective coal pillars need to be reserved between the main roads, and equipment withdrawal channels are arranged outside the protective coal pillars, see figure 1 shown. Mining stops when the working face pushes to the position of the withdrawal channel, which is also called the production stop line. After the working face reaches the production stop line, the equipment including the hydraulic support needs to be relocated to other working faces or locations, which is also called "moving" or "equipme...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned technical problems, the object of the present invention is to propose a collaborative operation method for the recovery of a working face with three uses in one lane and the retraction of stop production equipment, so as to solve the problems of low recovery rate, high cost of roadway and recovery of coal pillars in the prior art. The problem of long connection time between work faces

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