CN107725097A - Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion in a kind of Qie Dingcheng lanes - Google Patents
Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion in a kind of Qie Dingcheng lanes Download PDFInfo
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- CN107725097A CN107725097A CN201711053953.4A CN201711053953A CN107725097A CN 107725097 A CN107725097 A CN 107725097A CN 201711053953 A CN201711053953 A CN 201711053953A CN 107725097 A CN107725097 A CN 107725097A
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- coal
- goaf
- carbon dioxide
- liquid carbon
- spontaneous combustion
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- 239000003245 coal Substances 0.000 title claims abstract description 67
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 25
- 238000005065 mining Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 80
- 239000001569 carbon dioxide Substances 0.000 claims description 40
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- 230000003245 working effect Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion the invention discloses a kind of Qie Dingcheng lanes, the interdrive for making full use of Qie Dingcheng lanes to be remained without coal column technology, including E type face-airing systems, goaf step type pipe laying fluid injection state CO 2 technology, wherein E types face-airing system is by both sides tunnel, interdrive, district dip (is gone up a hill), connection roadway forms, E type face-airings system is used for administering the gas that current stope is gushed out, and goaf step type pipe laying fluid injection state CO 2 technology is used for preventing and treating goaf coal spontaneous combustion problem.Stope gas of the present invention controls method altogether with coal spontaneous combustion, effectively reduce the gas emission during working face extraction, avoid Gas overflow at working face and goaf coal spontaneous combustion is dangerous, accelerate the drawing speed of working face, improve coal recovery rate simultaneously and working face extraction continues speed, ensure the safety in production of working face.
Description
Technical field
The invention belongs to the technical field such as mine ventilation and gas preventing and control, and in particular to Qie Dingcheng lanes are without coal pillar mining gas
Method is controlled altogether with coal spontaneous combustion.
Background technology
Edge air gallery technology is the main direction of development of China deep coal mining along Kong Hu lanes, and the technology can realize no coal
Post is exploited, and has the advantages of high resource recovery, low digging ratio, while the bump that reserved coal pillar can be avoided to be triggered, real
Existing working face reciprocating mining, and then eliminate island working face；Domestic and foreign scholars have been done greatly with engineers and technicians to the technology
Quantifier elimination works, and in girdle, medium-thickness seam and comprehensive puts the certain application to engineering practice of the acquirements such as coal seam.It is but traditional along sky
The reason for staying lane technology to form longer and insufficient outstanding top being caving in goaf side, causing the problem is mainly manifested in two
Aspect：On the one hand due to directly top with base object model contact stress reduction, deformation and failure by shear easily occurs；The opposing party
Face is violent to coal column and roadside support system destruction due to the larger amount of crushing and rotational deformation.For from root
Solve the above problems, what full sea academician etc. proposes Qie Dingcheng lanes without coal pillar mining technology, i.e. 110 engineering methods.Each working face returns
1 gate road need to only be tunneled by adopting, and another 1 tunnel is by cutting the formation of top release automatic lane forming and being not required to reserved coal pillar.Cut top into
Lane without coal pillar mining technology before the back production of working face coal seam, first in stope drift active workings along the goaf side positioning explosion that will be formed
Top is cut in presplitting, while uses constant resistance and large deformation cable bolting stope drift active workings roof rock, after working face extraction, in mine pressure
Top plate is cut to fall to form lane side along joint-cutting under effect, the technology had both isolated goaf and in turn ensure that the stope drift active workings integrality, together
When weaken the periodic pressure of top plate, so as to by traditional digging pattern by becoming " while single lane " " when double lanes ".Cut at present
The gas problem of current stope is mainly administered in Ding Cheng lanes without coal pillar mining technology using Y types draft type, but Y types are divulged information
There is the problem of goaf is largely leaked out in mode, the exploitation for spontaneous fire seam, and serious coal spontaneous combustion will be caused by largely leaking out
Problem, and then threaten the safe working in coal seam.Therefore, spontaneous fire seam using Qie Dingcheng lanes without coal pillar mining technology, having must
Seek a kind of more rational draft type, in combination with effective goaf fire extinguishing mode, propose a kind of Qie Dingcheng lanes
Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion.
The content of the invention
The problem of existing for prior art, the present invention provide a kind of Qie Dingcheng lanes and are total to without coal pillar mining gas with coal spontaneous combustion
Method is controlled, this method realizes the flexible change of current stope ventilating system by designing E type ventilating systems, and then effectively
Solve the problems, such as the Gas of stope, while eliminated and worked as using goaf step type pipe laying fluid injection state carbon dioxide process
The danger of preceding actual mining face goaf coal spontaneous combustion.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of Qie Dingcheng lanes are without coal pillar mining gas
Method, including E type face-airing systems are controlled altogether with coal spontaneous combustion, goaf step type pipe laying fluid injection state CO 2 technology, its
Middle E types face-airing system (is gone up a hill) by both sides tunnel, interdrive, district dip, and connection roadway composition, E type working faces lead to
Wind system is used for administering the gas that current stope is gushed out, and goaf step type pipe laying fluid injection state CO 2 technology is used for
Prevent and treat goaf coal spontaneous combustion problem.
Described E type face-airings system uses both sides tunnel air intake, the draft type of interdrive return air, wherein two
Side tunnel, interdrive and district dip tunnel of (going up a hill) are joined directly together or connected by connection roadway, according to current actual mining
Face ventilation needs, and by setting Ventilation Structures in tunnel is connected, realizes the ventage for flexibly changing current stope
System.
Described both sides tunnel refers respectively to work at present musculus cutaneus band crossheading and Adjacent Working Face track crossheading.
Described interdrive is work at present face track crossheading, when current stope is pushed ahead, using cutting
Ding Cheng lanes retain the interdrive without coal column technology, while drill site can be arranged in interdrive, complete adjacent coal seam release up and down
The extraction of gas.
Described goaf step type pipe laying fluid injection state CO 2 technology is in work at present face haulage gate along goaf
Pre-buried first time note liquid carbon dioxide steel pipe for being used for injecting liquid carbon dioxide, liquid carbon dioxide steel pipe is noted when first time
During into goaf 50m, first time note liquid carbon dioxide steel pipe is connected with noting liquid carbon dioxide main line, and then to adopting
Liquid carbon dioxide is injected in dead zone, and then pre-buried second time note liquid carbon dioxide steel pipe, when second time fluid injection state titanium dioxide
When carbon steel pipe is embedded to goaf 50m, stop, to first time note liquid carbon dioxide steel pipe injection liquid carbon dioxide, beginning through
Second time note liquid carbon dioxide steel pipe injects liquid carbon dioxide, while pre-buried 3rd time fluid injection state two again to goaf
Carbon steel pipe is aoxidized, steel pipe selects length 100m, and the specification that 2 cun of diameter, so circulation, pipe laying step pitch is 50m, until current work
Untill having been adopted as face.
Described Qie Dingcheng lanes are without coal column technology by implementing Advance presplitting, cut-out interdrive top to middle back
Plate and the relation directly pushed up, pushed up always, Stope roof is cut to form lane side along pre- broken face under periodic weighting effect, separates goaf
And support upper mobile rock stratum.
Beneficial effects of the present invention：
Method is controlled in Qie Dingcheng lanes provided by the invention altogether without coal pillar mining gas and coal spontaneous combustion, make full use of Qie Dingcheng lanes without
The interdrive that coal column technology remains, constitute " E types ventilating system+goaf step type pipe laying note liquid carbon dioxide "
Gas and coal spontaneous combustion comprehensive treatment scheme, effectively reduce the gas emission during working face extraction, avoid back production work
Make face gas exceeding limit and goaf coal spontaneous combustion is dangerous, accelerate the drawing speed of working face, realize stope ventage
The flexible change of system, while improve coal recovery rate and working face extraction continues speed, ensure the safety in production of working face.
Brief description of the drawings
Fig. 1 is overall schematic of the present invention
Fig. 2 is Ventilation Structures arrangement schematic diagram
Fig. 3 is goaf step type pipe laying fluid injection state CO 2 technology pipe laying schematic diagram
In figure, 1-current stope, 2-Adjacent Working Face, 3-goaf, 4-both sides tunnel, 5-interdrive,
6-district rise (is gone down the hill), 7-connection roadway, 8-Ventilation Structures, 9-note liquid carbon dioxide steel pipe.
Embodiment
As shown in Figures 1 to 3, method, including E are controlled in a kind of Qie Dingcheng lanes of the invention altogether without coal pillar mining gas and coal spontaneous combustion
Type face-airing system, goaf step type pipe laying fluid injection state CO 2 technology, wherein E types face-airing system is by two
Side tunnel 4, interdrive 5, district dip (going up a hill) 6, connection roadway 7 forms, and E type face-airings system is used for administering current return
The gas that mining face 1 is gushed out, and the pressure difference at the current both ends of stope 1 can be reduced, reduce leaking out to goaf 3；
Goaf step type pipe laying fluid injection state CO 2 technology is used for preventing and treating the coal spontaneous combustion problem of goaf 3, and liquid carbon dioxide has
The dynamic effect such as cooling, inerting, and density ratio air is big, is easily covered in above the something lost coal in goaf 3, preventing and treating coal spontaneous combustion effect shows
Write.E type face-airings system uses the air intake of both sides tunnel 4, the draft type of the return air of interdrive 5, wherein both sides tunnel 4,
Interdrive 5 is joined directly together with the tunnel of district dip (going up a hill) 6 or connected by connection roadway 7, logical according to current stope 1
Wind needs, and by setting Ventilation Structures 8 in tunnel is connected, realizes the ventilating system for flexibly changing current stope 1,
Ventilation Structures 8 include 801-806, when current stope 1 is using E type face-airing systems, 801,803,805,806
For regulation wind window, Ventilation Structures 802,804 are air door；By the type for changing current Ventilation Structures 8, it is possible to achieve current
The flexible change of face-airing system.When Ventilation Structures 802 are regulation wind window, to construct 801,803,806 be air door for ventilation,
Ventilation Structures 805 are removed, the ventilating system in work at present face 1 has reformed into work at present musculus cutaneus band crossheading 401, interdrive
5 air intakes, the Y type face-airing systems of the return air of both sides tunnel 402.Both sides tunnel 4 refers respectively to the belt crossheading of work at present face 1
401 and the track crossheading 402 of Adjacent Working Face 2.Interdrive 5 is the track crossheading of work at present face 1, in current stope 1
When pushing ahead, the interdrive 5 is retained without coal column technology using Qie Dingcheng lanes, while drill site can be arranged in interdrive 5, it is complete
Into the extraction of upper and lower adjacent coal seam gas pressure relief.Goaf step type pipe laying fluid injection state CO 2 technology is in current actual mining
Face haulage gate 402 is embedded to first time note liquid carbon dioxide steel first along the pre-buried note liquid carbon dioxide steel pipe 9 in goaf 3
Pipe 901, when first time, which is noted liquid carbon dioxide steel pipe 901, enters 3 deep 50m of goaf, by first time fluid injection state titanium dioxide
Carbon steel pipe 901 be connected with note liquid carbon dioxide main line, and then to goaf injection liquid carbon dioxide, and and then pre-buried the
Two times note liquid carbon dioxide steel pipes 902, when second time, which is noted liquid carbon dioxide steel pipe 902, is embedded to 3 deep 50m of goaf,
Stop injecting liquid carbon dioxide to first time note liquid carbon dioxide steel pipe 901, begin through second time fluid injection state titanium dioxide
Carbon steel pipe 902 injects liquid carbon dioxide, while pre-buried 3rd time note liquid carbon dioxide steel pipe 903 again to goaf 3,
Steel pipe selects length 100m, and the specification that 2 cun of diameter, so circulation, the pre-buried step pitch of note liquid carbon dioxide steel pipe 9 is 50m,
Untill work at present face has been adopted.Qie Dingcheng lanes are without coal column technology by implementing Advance presplitting, cut-out to the top plate of interdrive 5
The top plate of interdrive 5 and the relation directly pushed up, pushed up always, Stope roof is cut to fall to form lane along pre- broken face under periodic weighting effect
Side, separate goaf 5 and support upper mobile rock stratum.
Claims (6)
1. method, including E type face-airing systems, goaf are controlled in a kind of Qie Dingcheng lanes altogether without coal pillar mining gas and coal spontaneous combustion
Step type pipe laying fluid injection state CO 2 technology, wherein E types face-airing system are by both sides tunnel, interdrive, under exploiting field
Mountain (is gone up a hill), and connection roadway composition, E type face-airings system is used for administering the gas that current stope is gushed out, goaf
Step type pipe laying fluid injection state CO 2 technology is used for preventing and treating goaf coal spontaneous combustion problem.
2. method is controlled in a kind of Qie Dingcheng lanes according to claim 1 altogether without coal pillar mining gas and coal spontaneous combustion, its feature exists
In：Described E type face-airings system uses both sides tunnel air intake, the wherein draft type of interdrive return air, both sides lane
Road, interdrive and district dip tunnel of (going up a hill) are joined directly together or connected by connection roadway, are led to according to current stope
Wind needs, and by setting Ventilation Structures in tunnel is connected, realizes the ventilating system for flexibly changing current stope.
3. method is controlled in a kind of Qie Dingcheng lanes according to claim 1 altogether without coal pillar mining gas and coal spontaneous combustion, its feature exists
In：Described both sides tunnel refers respectively to work at present musculus cutaneus band crossheading and Adjacent Working Face track crossheading.
4. method is controlled in a kind of Qie Dingcheng lanes according to claim 1 altogether without coal pillar mining gas and coal spontaneous combustion, its feature exists
In：Described interdrive is work at present face track crossheading, when current stope is pushed ahead, using Qie Dingcheng lanes
Retain the interdrive without coal column technology, while drill site can be arranged in interdrive, adjacent coal seam gas pressure relief above and below completion
Extraction.
5. method is controlled in a kind of Qie Dingcheng lanes according to claim 1 altogether without coal pillar mining gas and coal spontaneous combustion, its feature exists
In：Described goaf step type pipe laying fluid injection state CO 2 technology is in work at present face haulage gate along the pre-buried use in goaf
To inject the first of liquid carbon dioxide time note liquid carbon dioxide steel pipe, adopted when first time note liquid carbon dioxide steel pipe enters
During the 50m of dead zone, first time note liquid carbon dioxide steel pipe is connected with noting liquid carbon dioxide main line, and then to goaf
Enter liquid carbon dioxide, and then pre-buried second time note liquid carbon dioxide steel pipe, liquid carbon dioxide steel pipe is noted when second time
When being embedded to goaf 50m, stop, to first time note liquid carbon dioxide steel pipe injection liquid carbon dioxide, beginning through second time
Note liquid carbon dioxide steel pipe and inject liquid carbon dioxide, while pre-buried 3rd time note liquid carbon dioxide again to goaf
Steel pipe, steel pipe select length 100m, and the specification that 2 cun of diameter, so circulation, pipe laying step pitch is 50m, until work at present face is adopted
Untill complete.
6. method is controlled in a kind of Qie Dingcheng lanes according to claim 4 altogether without coal pillar mining gas and coal spontaneous combustion, its feature exists
In：Described Qie Dingcheng lanes without coal column technology by middle back implement Advance presplitting, cut-out interdrive top plate with
The relation directly push up, pushed up always, Stope roof is cut to form lane side along pre- broken face under periodic weighting effect, separates goaf and props up
Support upper mobile rock stratum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053953.4A CN107725097A (en) | 2017-10-31 | 2017-10-31 | Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion in a kind of Qie Dingcheng lanes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053953.4A CN107725097A (en) | 2017-10-31 | 2017-10-31 | Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion in a kind of Qie Dingcheng lanes |
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| CN107725097A true CN107725097A (en) | 2018-02-23 |
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| CN201711053953.4A Pending CN107725097A (en) | 2017-10-31 | 2017-10-31 | Method is controlled altogether without coal pillar mining gas and coal spontaneous combustion in a kind of Qie Dingcheng lanes |
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Cited By (9)
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| CN109083674A (en) * | 2018-10-30 | 2018-12-25 | 中国矿业大学(北京) | A kind of safety clean ventilating system suitable for cutting top 110 engineering method of release exploitation working face |
| CN110454134A (en) * | 2019-09-05 | 2019-11-15 | 湖南科技大学 | A kind of method of underground raw coal gasification |
| CN111577281A (en) * | 2020-05-22 | 2020-08-25 | 中国矿业大学 | High-gas coal seam coal pillar-free mining and gas control method |
| CN111622795A (en) * | 2020-04-30 | 2020-09-04 | 中国矿业大学(北京) | Three-dimensional ventilation method and system for mining by 110-method coal and gas outburst mine |
| CN111636870A (en) * | 2020-04-30 | 2020-09-08 | 王炯 | Roof-cutting roadway-retaining coal-pillar-free mining method |
| CN113550782A (en) * | 2021-08-20 | 2021-10-26 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
| CN113669060A (en) * | 2021-09-13 | 2021-11-19 | 中国矿业大学 | H-shaped coal face stoping roadway arrangement method |
| CN114961728A (en) * | 2022-06-20 | 2022-08-30 | 太原理工大学 | Stope coal pillar-free mining method for comprehensively preventing rock burst and gas |
| CN115839240A (en) * | 2023-02-23 | 2023-03-24 | 煤炭工业太原设计研究院集团有限公司 | Coal mining method of continuous mining machine for high-gas mine corner coal |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083674A (en) * | 2018-10-30 | 2018-12-25 | 中国矿业大学(北京) | A kind of safety clean ventilating system suitable for cutting top 110 engineering method of release exploitation working face |
| CN110454134A (en) * | 2019-09-05 | 2019-11-15 | 湖南科技大学 | A kind of method of underground raw coal gasification |
| WO2021219131A1 (en) * | 2020-04-30 | 2021-11-04 | 中国矿业大学(北京) | Roof-cutting tunnel-retaining no-pillar mining method |
| CN111622795A (en) * | 2020-04-30 | 2020-09-04 | 中国矿业大学(北京) | Three-dimensional ventilation method and system for mining by 110-method coal and gas outburst mine |
| CN111636870A (en) * | 2020-04-30 | 2020-09-08 | 王炯 | Roof-cutting roadway-retaining coal-pillar-free mining method |
| CN111622795B (en) * | 2020-04-30 | 2021-03-30 | 中国矿业大学(北京) | Three-dimensional ventilation method and system for mining by 110-method coal and gas outburst mine |
| CN111636870B (en) * | 2020-04-30 | 2021-10-08 | 王炯 | Roof-cutting roadway-retaining coal-pillar-free mining method |
| CN111577281B (en) * | 2020-05-22 | 2021-07-30 | 中国矿业大学 | High-gas coal seam coal pillar-free mining and gas control method |
| CN111577281A (en) * | 2020-05-22 | 2020-08-25 | 中国矿业大学 | High-gas coal seam coal pillar-free mining and gas control method |
| CN113550782A (en) * | 2021-08-20 | 2021-10-26 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
| CN113669060A (en) * | 2021-09-13 | 2021-11-19 | 中国矿业大学 | H-shaped coal face stoping roadway arrangement method |
| CN114961728A (en) * | 2022-06-20 | 2022-08-30 | 太原理工大学 | Stope coal pillar-free mining method for comprehensively preventing rock burst and gas |
| CN114961728B (en) * | 2022-06-20 | 2022-12-13 | 太原理工大学 | Method for mining area without coal pillars for comprehensively preventing and controlling rock burst and gas |
| CN115839240A (en) * | 2023-02-23 | 2023-03-24 | 煤炭工业太原设计研究院集团有限公司 | Coal mining method of continuous mining machine for high-gas mine corner coal |
| CN115839240B (en) * | 2023-02-23 | 2023-04-21 | 煤炭工业太原设计研究院集团有限公司 | Coal mining method of continuous miner for high-gas mine corner coal |
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Application publication date: 20180223 |