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Close-range thin coal layer simultaneous mining and parallel transporting method

A thin coal seam, short-distance technology, applied in ground mining, mining equipment, earthwork drilling and mining, etc., can solve the problems of difficult tunneling support, long mining cycle, low output, etc., to improve mine output and production efficiency, reduce The effect of excavation engineering quantity and production cost reduction

Inactive Publication Date: 2013-11-06
SHANXI LUAN ENVIRONMENTAL ENERGY DEV +1
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Problems solved by technology

[0003] The invention provides a method for simultaneous mining and transport of short-distance thin coal seams, which overcomes the waste of resources, serious flooding, difficult mining layout of lower coal seams, long mining period, low output, and difficult tunneling and support in existing short-distance thin coal seam layered mining. high cost issues

Method used

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  • Close-range thin coal layer simultaneous mining and parallel transporting method
  • Close-range thin coal layer simultaneous mining and parallel transporting method
  • Close-range thin coal layer simultaneous mining and parallel transporting method

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Embodiment Construction

[0032] Such as figure 1 with figure 2 Shown:

[0033] According to the design department's design, three concentrated lanes are arranged along the coal seam or its roof and floor, namely centralized transportation lane 1, concentrated track lane 2, and concentrated return air lane 3, which are used as the main transportation, ventilation and pedestrians in the mining area;

[0034] Excavating the lower transport channel 13 in the lower coal seam, connecting the concentrated transportation lane 1, the concentrated track lane 2 and the lower cutout 10; excavating the lower track trough 5 in the lower coal seam, connecting the concentrated track lane 2, the concentrated return air lane 3 and the lower cutout 10 ;

[0035] In the excavation of the upper coal seam, the transport channel 14 is connected to the concentrated track roadway 2 and the upper cutout 9; in the upper coal seam excavation, the upper track track trough 6 is connected to the concentrated track roadway 2 and ...

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Abstract

The invention discloses a close-range thin coal layer simultaneous mining and parallel transporting method, aiming to solve the problems caused by layer mining of the existing close-range thin coal layers, such as resource waste, serious flood, difficult mining distribution of lower layer coal, long mining period, low yield, high tunneling and supporting difficulties, high cost and the like. The method is characterized by arranging a centralized transport roadway, a centralized track roadway and a centralized air return roadway along the coal layers or top and bottom plates of the coal layers, simultaneously arranging two coal faces on the close-range thin coal layers and simultaneously mining and transporting coal. The method has the following beneficial effects: simultaneous mining and centralized transporting of the upper and lower coal layers are realized; relative to layer mining, by adopting the method, the tunneling quantities of the roadways are reduced, a belt conveyer can be simultaneously omitted, and the convenience is provided for centralized management of production; and especially for the close-range thin coal layers, the production system is simplified, the convenience is provided for centralized management, the production cost is lowered, and the mine output and the production efficiency are improved.

Description

technical field [0001] The invention relates to a method for simultaneous mining and transportation of short-distance thin coal seams. Background technique [0002] At present, the short-distance thin coal seam, that is, the coal seam with an interlayer spacing of less than 8 meters, is mainly mined in layers, that is, after the upper layer of coal has been mined, the lower layer of coal will be mined after the roof is stable. The disadvantages of this mining method The reason is: after the upper layer coal is mined, due to the long-term water accumulation in the goaf, the mining of the lower layer coal will cause serious flooding; the various coal pillars left during the mining process of the upper layer coal will cause local area damage to the roof of the lower layer coal. Stress concentration, the development roadway of the lower layer coal must avoid the stress concentration area, which brings adverse factors to the layout of the roadway. In order to avoid the stress con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21C25/06E21C35/20E21F13/06E21F7/00E21D15/00E21D23/00
Inventor 郝建国胡耀青宋献忠张彦弘崔振清谢建军李清艳侯林望陈红春李旭森祁涛
Owner SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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