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Coal Mining Method without Coal Pillar in the Whole Mining Area and No Roadway Tunneling

A coal mining method and roadway technology, applied in mining equipment, tunnels, ground mining, etc., can solve the problems of waste of coal resources, high excavation costs, long excavation time, etc., to save time and money, eliminate excavation, and improve recovery rate effect

Active Publication Date: 2019-11-05
BEIJING ZHONGKUANG INNOVATION ALLIANCE ENERGY & ENVIRONMENTAL SCI RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the embodiment of the present invention, a coal mining method with no coal pillars and no roadway is provided in the whole mining area to solve the coal mine mining in the prior art that requires large amount of excavation, long excavation time, high excavation cost, and great inconvenience caused by leaving coal pillars. Big waste of coal resources

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  • Coal Mining Method without Coal Pillar in the Whole Mining Area and No Roadway Tunneling
  • Coal Mining Method without Coal Pillar in the Whole Mining Area and No Roadway Tunneling
  • Coal Mining Method without Coal Pillar in the Whole Mining Area and No Roadway Tunneling

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0032] see figure 1 As shown, according to the embodiment of the present invention, there is provided a coal mining method without coal pillars in the whole mining area without roadway excavation, and the coal mining method includes the following steps:

[0033] Open the main shaft 1, auxiliary shaft 2 and return air shaft 3 from the ground to the coal seam;

[0034] After the main shaft 1, the auxiliary shaft 2 and the air return shaft 3 are opened to the coal mining seam, a working face production system is arranged on the coal mining seam;

[0035] Excavating the coal wall by cutting the coal wall in the first direction with the shearer, and forming the first mining face 4 with the first direction as the traveling direction;

[0036] When the shearer cuts the coal wall at the firs...

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Abstract

The invention discloses a coal mining method with no coal pillars and roadway excavation in the whole mining area. The coal mining method includes the following steps: opening a main shaft, an auxiliary shaft and a return air shaft from the ground to the coal seam; One direction is the first mining face in the direction of travel; when the coal shearer cuts the coal wall at the first mining face, the first transport lane and the first return air lane are cut out at the same time, and the first transport lane and the first return air lane are kept , the first transport lane and the first air return lane are respectively located on both sides of the first mining face, the first transport lane is connected with the main shaft and the auxiliary shaft at the same time, and the first air return lane is connected with the return air shaft; When the second working face cuts the coal wall, the second transportation lane and the second air return lane are cut out at the same time, and the second transportation lane and the second air return lane are reserved. The second transportation lane and the second air return lane are respectively located in Both sides of the second working surface. The invention effectively solves the problems in the prior art that the mining of coal mines requires a large amount of excavation, long excavation time, high excavation cost, and waste of coal resources caused by leaving coal pillars.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a coal mining method with no coal pillars left in the whole mining area and no roadway excavation. Background technique [0002] The development layout mode of existing coal mine mining needs to excavate at least 3 development lanes earlier when mining a coal seam to serve the entire mining area. Then dig at least 3 roadways from the development road to the mining area to serve each mining area. Two roadways shall be excavated in advance for each working face in the mining area as the working face transportation roadway and the working face return air roadway to serve the working face. In order to make the normal connection of each mining face, each coal mine needs to arrange a plurality of tunneling faces, employing a large number of people, a large amount of tunneling, long tunneling time, high tunneling costs, and alternate tension between coal mining and tunneling. Two roadw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/18E21D9/14
CPCE21C41/18E21D9/14
Inventor 何满潮高玉兵付强王亚军
Owner BEIJING ZHONGKUANG INNOVATION ALLIANCE ENERGY & ENVIRONMENTAL SCI RES INST
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