A coal mining method with full negative pressure continuous miner for edge coal

Abstract

The invention discloses a coal mining method with a full negative pressure continuous miner for corner coal, which belongs to the technical field of coal mining; it solves the problem of inability to have full negative pressure ventilation in the mining tunnel and the production capacity when the continuous miner coal mining method is adopted in corner coal resources. The lower problem includes four steps: roadway layout along the channel, mining unit branch roadway layout, mining unit mining, and corner coal section mining; the roadway layout of the present invention is flexible, the resource recovery rate is high, and it is completely eliminated during mining tunnel mining. The local ventilator is used for air supply, and the lack of wind flow is avoided from returning to the mining branch roadway. The branch roadway hole is added inside the mining unit, which is conducive to ventilation management and safety; at the same time, the coal mining method of the present invention adopts a continuous mining machine and supporting equipment Carry out roadway excavation and mining back mining, excavation integrated, less new personnel, relatively low investment, not only to ensure the coal output, but also to achieve better benefits.

Description

technical field [0001] The invention belongs to the technical field of coal mining, and in particular relates to a coal mining method with a full negative pressure continuous miner for edge coal. Background technique [0002] During the mining process of the mine, due to the influence of geological conditions, mining methods, and working face layout, a large amount of corner coal resources will be left behind. Due to the small, scattered and irregular resource area, the conventional longwall fully mechanized mining method cannot be adopted. to mine. At present, in the recovery of marginal coal resources, the main mining methods are: short-wall mining, filling mining, roadway mining, continuous miner mining and the combination of these methods. Many mining methods have improved the resource recovery rate of coal mines to a certain extent, but there are still some problems, such as too many times of moving and reversing in short-wall mining, and for small-area corner coal, it...

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Problems solved by technology

[0005] The present invention overcomes the deficiencies in the prior art, and proposes a coal mining method with a full negative pressure continuous miner for edge coal resources, which solves the problem of the failure of full negative pressure ventilation in the mining tunnel when the continuous miner coal mining method is used in edge coal resources. low yield problem

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