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Longwall mining N00 construction method

A longwall and mining process technology, applied in ground mining, mining equipment, earth drilling and mining, etc., can solve problems such as low work efficiency and waste of resources, and achieve the effect of improving efficiency and saving resources

Active Publication Date: 2016-01-13
何满潮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the current structure, coal pillars need to be reserved, resulting in a large waste of resources
Moreover, each working face needs to excavate two roadways, and the work efficiency is low

Method used

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Embodiment Construction

[0019] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature and not limiting. this invention.

[0020] Longwall mining N00 method is a new type of coal mining method, which is characterized in that it does not need to dig up and down troughs when mining at the working face, and does not need to leave coal pillars, and can ensure the ventilation of the entire panel. The structure of a specific embodiment will be described below.

[0021] Longwall mining N00 construction method of the present invention in a specific application such as figure 2 As shown, including the entire panel 2, a return air downhill passage 25 and a track downhill passage 26 are dire...

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Abstract

The invention discloses a longwall mining N00 construction method, which is characterized in that roadway-free tunneling and coal-pillar-free mining are performed in N working faces of a bran-new panel; the whole panel is provided with an air return downhill passage, a belt downhill passage and a rail downhill passage; the air return downhill passage and the rail downhill passage are positioned at one end of the panel; and the belt downhill passage is communicated with the other end of the panel and is communicated with the air return downhill passage. The longwall mining N00 construction method has the advantages that the ventilation of the whole coal mining region can be ensured; during the mining of each working face in the panel, one part of a goaf is used for implementing roof cutting and pressure relief automatic roadway forming; any crossheading roadway does not need to be tunneled; and coal pillars do not need to be reserved, so that resources are saved, and the efficiency is improved.

Description

technical field [0001] The invention relates to the longwall mining technology in coal mines. Background technique [0002] At present, in the process of longwall mining, such as figure 1 The 121 construction method is used as shown, that is, two roadways need to be excavated in one working face, and a coal pillar is reserved as a support. Specifically, each working face 10 includes an upper trough 11, a lower trough 12 and a mining face 13, the upper trough 11 of each working face 10 is connected to the belt downhill passage 14, and the lower trough 12 of each working face 10 is connected back to The wind downhill passage 15 is also provided with a track downhill passage 16 in addition. In the current structure, coal pillars need to be left, resulting in a large waste of resources. Moreover, each working face needs to excavate two roadways, and the working efficiency is low. Contents of the invention [0003] Aiming at the problems existing in the prior art, the objec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/18
CPCE21C41/18E21C41/16E21D19/02E21D23/0034E21D23/0463E21F1/00E21F1/006
Inventor 何满潮
Owner 何满潮
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