Coal mine underground rotary coal mining method
A coal mining method and coal mine technology, which is applied in ground mining, earth square drilling, underground mining, etc., can solve the problems of long preparation time of coal mining face, increased number of moving of coal mining equipment, short continuous advance length of working face, etc. Achieve the effects of reducing the preparation time and workload for replacement, reducing mining costs, and being easy to operate
Inactive Publication Date: 2020-07-14
BEIJING YZH COAL ENG DESIGN
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Problems solved by technology
[0002] At present, coal mining in coal mines is limited by geological and other mining conditions, and it is difficult to plan and arrange large-length continuous coal mining faces
However, the conventional coal mining method is used to arrange the mining of the working face. The disadvantage is that the continuous advancing length of the working face is short, and the number of moving coal mining equipment on the working face increases, which leads to a long preparation time for the coal mining face and tight replacement time between the working faces. , thus seriously reducing the mining efficiency of coal mines, increasing mining costs, and increasing the difficulty of coal mine management
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[0017] The underground rotary coal mining method of coal mine that the present invention proposes, this method comprises the following steps:
[0018] (1) the underground coal mining area is equally divided into a first block section 7 and a second block section 8;
[0019] (2) Adopt the advancing coal mining method, start coal mining, arrange a coal mining face 2 from the left boundary 1 of the coal mining area of the first block, make the coal mining face 2 advance continuously, and form a goaf 6;
[0020] (3) Maintain the transport chute 3 and the track chute 4 in the goaf 6;
[0021] (4) Make the coal mining face 2 continuously advance towards the right side boundary 5 of the coal mining area of the first block, and maintain the transport chute 3 and the track chute 4 while advancing, when the coal mining face 2 advances to the first When the right side boundary 5 of the coal mining area of the block section 7 is separated by a length of the working face, the coal ...
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The invention relates to a coal mine underground rotary coal mining method, and belongs to the technical field of mining technology and environmental protection. The method includes the steps that anexisting advanced coal mining method is adopted to mine, while gob-side entry retaining is carried out on a goaf, a transport and track crossheading is maintained, in the case of uninterrupted coal mining, rotation mining is carried out at a specified period of time, two working face coal volumes are mined at a time, the transport and track crossheading work amount can be less prepared, working face equipment can be moved once less, continuous mining is achieved, coal pillars between working faces are reduced, the replacement preparation time is shortened and workload is reduced, the equipmentmoving cost is reduced, more mining coal resources are mined, and the mining cost is reduced. The method can solve the problem of large influence of mining in adjacent coal mining working faces, gob-side entry retaining no coal pillar mining is realized, smooth mining is carried out in a mining area, and the problem of stressed replacing of the mining working faces is solved; and continuous mining is realized, the number of people working underground at the same time is reduced, the management difficulty is reduced, and the safety is improved.
Description
technical field [0001] The invention relates to an underground rotary coal mining method in a coal mine, belonging to the technical fields of mining technology and environmental protection. Background technique [0002] At present, coal mining in coal mines is limited by geological and other mining conditions, and it is difficult to plan and arrange large-length continuous coal mining faces. However, the conventional coal mining method is used to arrange the mining of the working face. The disadvantage is that the continuous advancing length of the working face is short, and the number of moving coal mining equipment on the working face increases, which leads to a long preparation time for the coal mining face and tight replacement time between the working faces. Therefore, the mining efficiency of coal mines is seriously reduced, and the mining cost is increased, which also increases the difficulty of coal mine management. Contents of the invention [0003] The purpose o...
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CPCE21C41/18
Inventor 李明武冷锋
Owner BEIJING YZH COAL ENG DESIGN