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A kind of circular coal mining method and its mining system

A mining method and circular technology, which is applied in ground mining, mining equipment, underground mining, etc., can solve the problems of high cost of mining methods, achieve operations with fewer people, reduce mutual superposition, and reduce the probability of mine disaster accidents Effect

Active Publication Date: 2022-03-04
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a circulating coal mining method and its mining system, which solves the technical problem of high cost of the existing coal mining method

Method used

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  • A kind of circular coal mining method and its mining system
  • A kind of circular coal mining method and its mining system
  • A kind of circular coal mining method and its mining system

Examples

Experimental program
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Embodiment 1

[0025] Embodiment 1, a kind of circulation type coal mining method, such as figure 1 As shown, an end-to-end circulating roadway 5 is arranged in the well field area 6. The circulating roadway 5 includes a mining roadway 51 and a transportation roadway 52. Between the roadways 51 , a roadheader 1 is arranged in each mining roadway 51 . The roadheader 1 in each mining roadway 51 mines in each mining roadway 51 sequentially along the circular roadway 5 , and the mining face 61 of each mining roadway 51 advances in the same or opposite direction.

[0026] Further, the circulating roadway 5 is rectangular and includes two mining roadways 51 and two transportation roadways 52, the two transportation roadways 52 are respectively connected to the two ends of the two mining roadways 51, and the mining direction of the roadheader 1 is in line with the The advancing direction of the mining face 61 is vertical.

[0027] Or the circular roadway 5 is triangular and includes an obliquely ...

Embodiment 2

[0031] Embodiment 2, a kind of circulating type coal mining system, such as Figure 2-Figure 4 As shown, it includes the roadheader 1 arranged in the mining roadway 51, the slag discharge system of the roadheader 1 is connected with the coal transport belt conveyor 3, the hydraulic roof protection bracket 2 is arranged in the mining roadway 51, and the mining direction of the roadheader 1 is consistent with the mining direction. The advancing directions of the mining face 61 of the roadway 51 intersect, and the roadheader 1 is provided with a bolter 15 facing the mining face 61 .

[0032] The roadheader 1 is a rectangular TBM, and the rectangular TBM includes a rectangular TBM cutterhead 11. A screw conveyor 13 extending backward to the supporting trailer is arranged behind the rectangular TBM cutterhead 11, and a connecting screw conveyor 13 is arranged on the rear matching trailer 13. With the TBM belt conveyor 14 of the coal conveyor 3, the TBM belt conveyor 14 is connected...

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Abstract

The invention discloses a circular coal mine mining method and its mining system. The method is to arrange a circular roadway connected end to end in the mine field area. The circular roadway includes at least two mining roadways and at least one transportation roadway. The mining roadway extends Within the width of the minefield area, the transportation roadway is connected between the mining roadways, and each mining roadway is equipped with a roadheader, and the roadheaders in each mining roadway mine in sequence along the circular roadway in each mining roadway. The mining face of the roadway advances in the same or opposite direction. Its mining system includes roadheaders, hydraulic roof supports, coal belt conveyors and bolters, etc. The present invention subverts the existing mining area or panel mining method, and for a large-scale well field, only two mining roadways and transportation roadways are left, which greatly reduces roadway layout.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a circular coal mining method and a mining system thereof. Background technique [0002] Coal, as the main energy source in our country, occupies an important position in the development of the national economy. In the existing coal mining methods, the mine field layout mostly adopts the mining area type or the panel type, and the mining method mostly adopts the retreat type mining. In the existing mining method, a large number of roadways need to be arranged in the mine, and the cost of roadway excavation and support is high. [0003] Existing coal mining machinery mostly adopts drum shearer, and the mining stroke of drum shearer is generally less than 500 m, which cannot realize large-scale long-distance mining. Moreover, the retreating coal mining method of the drum shearer needs to be used in conjunction with the air inlet lane and the air return lane, which greatly inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/18E21D9/14E21D9/087E21D9/12E21D23/04E21D20/00
CPCE21C41/18E21D9/14E21D9/087E21D9/03E21D9/12E21D9/124E21D23/0086E21D23/04E21D20/003
Inventor 鲁义强李光贺飞刘腾龙高翔范书恒王勇
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD