CN102155224A - Parallel fully-mechanized working surface for coal mine open-off cut coal pillar - Google Patents
Parallel fully-mechanized working surface for coal mine open-off cut coal pillar Download PDFInfo
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- CN102155224A CN102155224A CN2011100348675A CN201110034867A CN102155224A CN 102155224 A CN102155224 A CN 102155224A CN 2011100348675 A CN2011100348675 A CN 2011100348675A CN 201110034867 A CN201110034867 A CN 201110034867A CN 102155224 A CN102155224 A CN 102155224A
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Abstract
The invention discloses a parallel fully-mechanized working surface for a coal mine open-off cut coal pillar. The parallel fully-mechanized working surface for the coal mine open-off cut coal pillar is a fully-mechanized working surface of which the length of an upward along groove is less than that of a lower along groove, wherein the length difference is small and close to zero; the lower along groove is 68 meters away from the open-off cut position of the working surface, and turns upward 11 degrees; an included angle of 169 degrees is formed in the lower along groove; and an open-off cut of the working surface is parallel to a coal pillar line. The parallel fully-mechanized working surface for the coal mine open-off cut coal pillar has a simple structure, improves the recovery rate of coal resources and working safety and reliability, greatly reduces the labor intensity of workers, and extremely has practical value.
Description
Technical field
The present invention relates to a kind of colliery fully-mechanized mining working, specifically is that gugen kohle post run-in index fully-mechanized mining working is cut in a kind of colliery.
Background technology
Coal in China output and consumption figure have accounted for 1/3 of the world, and will be the main energy sources of China in a very long time from now on.Coal is again non-renewable resource, and the research that therefore improves coal recovery rate has significance.At present, the coal-mining method of the actual employing of China's underground mining mainly is divided into: longwell caving method, the method for collecting coal by the means of filling, hydraulic mining method and post and stall.The longwell caving method accounts for absolute leading position, accounts for coal production more than 96%.Yet common fully-mechanized mining working is cut eye and 95 °-105 ° of following crossheading angles, cut and pillar line between not parallel, cause the loss of coal resources.Coal-face often causes the increase and decrease of transporter intermediate channel because of face length changes, and coal recovery rate is not high, and working strength of workers is big, and also there is hidden danger in safe and reliable property.
Summary of the invention
The coal recovery rate that has the existence of coal mine fully-mechanized mining face now is not high in order to solve, working strength of workers reaches the problem that also there is hidden danger in safe and reliable property greatly.The invention provides a kind of colliery and cut gugen kohle post run-in index fully-mechanized mining working, this a kind of colliery is cut gugen kohle post run-in index fully-mechanized mining working and has been improved coal recovery rate and safe and reliable property, greatly reduces working strength of workers.
The technical solution adopted for the present invention to solve the technical problems is: this a kind of colliery is cut gugen kohle post run-in index fully-mechanized mining working and is comprised pillar line, work plane is cut eye, last crossheading, following crossheading, fully-mechanized mining working, it is that a last crossheading length is less than following crossheading length that gugen kohle post run-in index fully-mechanized mining working is cut in this a kind of colliery, and length difference is apart from less, tend to isometric fully-mechanized mining working, this time crossheading is cut 68 meters, a position apart from work plane, upwards change 11 ° of angles, described crossheading inside down is 169 ° of angles, work plane is cut eye and is parallel to pillar line, improved coal recovery rate, take to tend to the fully-mechanized mining working of isometric setting, avoided causing the increase and decrease of transporter intermediate channel because of face length changes, alleviate working strength of workers, improved security reliability.
The invention has the beneficial effects as follows: it is simple in structure that gugen kohle post run-in index fully-mechanized mining working is cut in this a kind of colliery, improved coal recovery rate and safe and reliable property, greatly reduces working strength of workers, has practical value.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is cut the structural principle schematic diagram of gugen kohle post run-in index fully-mechanized mining working for this a kind of colliery.
Among the figure, 1. pillar line, 2. work plane cut eye, 3. go up crossheading, 4. descend crossheading, 5. fully-mechanized mining working.
The specific embodiment
In the drawings, this a kind of colliery is cut gugen kohle post run-in index fully-mechanized mining working and is comprised pillar line 1, work plane is cut eye 2, last crossheading 3, following crossheading 4, fully-mechanized mining working 5, it is that last crossheading 3 length are less than following crossheading 4 length that gugen kohle post run-in index fully-mechanized mining working is cut in this a kind of colliery, and length difference is apart from less, tend to isometric fully-mechanized mining working 5, this time crossheading 4 is cut eye 68 meters, 2 positions apart from work plane, upwards change 11 ° of angles, the described inside of crossheading 4 down is 169 ° of angles, work plane is cut eye 2 and is parallel to pillar line 1, improved coal recovery rate, take to tend to the fully-mechanized mining working 5 of isometric setting, avoided causing the increase and decrease of transporter intermediate channel because of face length changes, alleviate working strength of workers, improved security reliability.
Claims (2)
1. gugen kohle post run-in index fully-mechanized mining working is cut in a colliery, this a kind of colliery is cut gugen kohle post run-in index fully-mechanized mining working and is comprised that pillar line (1), work plane are cut eye (2), gone up crossheading (3), crossheading (4), fully-mechanized mining working (5) down, it is characterized in that: it is that last crossheading (a 3) length is less than descending crossheading (4) length and length difference apart from fully-mechanized mining working (5) little, that trend is isometric that gugen kohle post run-in index fully-mechanized mining working is cut in this a kind of colliery, this time crossheading (4) is cut eye 68 meters, (2) position apart from work plane, upwards changes 11 ° of angles.
2. gugen kohle post run-in index fully-mechanized mining working is cut in a kind of colliery according to claim 1, it is characterized in that: the described inside of crossheading (4) down is 169 ° of angles, and work plane is cut eye (2) and is parallel to pillar line (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100348675A CN102155224A (en) | 2011-01-27 | 2011-01-27 | Parallel fully-mechanized working surface for coal mine open-off cut coal pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100348675A CN102155224A (en) | 2011-01-27 | 2011-01-27 | Parallel fully-mechanized working surface for coal mine open-off cut coal pillar |
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| CN102155224A true CN102155224A (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100348675A Pending CN102155224A (en) | 2011-01-27 | 2011-01-27 | Parallel fully-mechanized working surface for coal mine open-off cut coal pillar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074520A (en) * | 2014-06-25 | 2014-10-01 | 中国矿业大学 | Method for determining lower open-off cut positions of shallow-buried short-distance goaf-side coal pillars |
| CN112012741A (en) * | 2020-09-03 | 2020-12-01 | 神华神东煤炭集团有限责任公司 | Fully mechanized coal mining face inclination adjusting method |
-
2011
- 2011-01-27 CN CN2011100348675A patent/CN102155224A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074520A (en) * | 2014-06-25 | 2014-10-01 | 中国矿业大学 | Method for determining lower open-off cut positions of shallow-buried short-distance goaf-side coal pillars |
| CN104074520B (en) * | 2014-06-25 | 2016-04-27 | 中国矿业大学 | A kind of shallow embedding closely adopts sky coal column incision eye method for determining position in side |
| CN112012741A (en) * | 2020-09-03 | 2020-12-01 | 神华神东煤炭集团有限责任公司 | Fully mechanized coal mining face inclination adjusting method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |