CN107035400A - Three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems - Google Patents
Three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems Download PDFInfo
- Publication number
- CN107035400A CN107035400A CN201710187440.6A CN201710187440A CN107035400A CN 107035400 A CN107035400 A CN 107035400A CN 201710187440 A CN201710187440 A CN 201710187440A CN 107035400 A CN107035400 A CN 107035400A
- Authority
- CN
- China
- Prior art keywords
- gas
- stratum
- fully mechanized
- marine site
- return airway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 33
- 238000002627 tracheal intubation Methods 0.000 claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
Abstract
A kind of three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems, including the fully mechanized coal face return airway in three soft marine site stratum, middle part in fully mechanized coal face return airway is provided with the belt conveyor for being used for transferring out coal, gas master is additionally provided with fully mechanized coal face return airway and takes out flexible pipe, the outer end that gas master takes out flexible pipe is connected by bifurcated pipe with the air inlet of many gas suction pumps, the gas outlet of every gas suction pump is connected by conveying air flue with the external world respectively, many gas suction pumps are arranged in the gas drainage under suction chamber in fully mechanized coal face return airway, the gas master takes out the inner end of flexible pipe and is connected by one-level branching-passage device for tube with the outer end of Duo Gen one-levels branch gas exhaust sebific duct.Simple the purpose is to provide a kind of construction, local gas drainage results substantially, effectively reduce goaf gas and gushed out, and prevent three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the oxidation and spontaneous combustion of Residual coal in goaf.
Description
Technical field
The present invention relates to a kind of three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems.
Background technology
The lower coal mining gas emission in three soft formations sea is big.By face-airing mode, geological conditions, Coal Spontaneous Combustion Period
The factor restriction such as short, gas control difficulty is big, and the gas for exploring the easy spontaneous progress fully mechanized coal face in suitable " three is soft " stratum is taken out
Put, lead to anti-safe top priority as guarantee marine site expansion area coal-face.
Marine site expansion area fully mechanized coal face is limited by stope condition, using material lane air intake, the air feed side of transportation roadway return air
Formula, the easy accumulated methane of coal-face upper corner, and return airway near exit pressure are big, leakiness top, roof fall, easily because of ventilation
Negative pressure causes goaf gas largely to be discharged along the leakage head space hole short time, causes distinguished and admirable gas exceeding limit.Marine site expansion area is by " three
It is soft " influence of stratum cranny development, coal-bed gas The book of Changes mining induced fissure scurries out in face of." three is soft " stratum is with adopting with collapsing, and a high position is bored
Hole is difficult to construct, and the easy plugging of fine particle in pipeline frangibility, crack is influenceed by dynamic pressure after construction, so as to cause drilling high
Bit position fails or effect is bad.
The content of the invention
It is an object of the invention to provide one kind construction simply, local gas drainage results substantially, effectively reduce goaf gas and gushed
Go out, prevent three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the oxidation and spontaneous combustion of Residual coal in goaf.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention, including positioned at three soft marine sites
Middle part in fully mechanized coal face return airway in stratum, fully mechanized coal face return airway is provided with the conveying for being used for transferring out coal
The side of left and right two in belt, fully mechanized coal face return airway, which is respectively equipped with row's pillar, fully mechanized coal face return airway, to be additionally provided with watt
This master takes out flexible pipe, and the outer end that gas master takes out flexible pipe is connected by bifurcated pipe with the air inlet of many gas suction pumps, every gas
The gas outlet of drainage pump is connected by conveying air flue with the external world respectively, and many gas suction pumps are arranged on fully mechanized coal face return airway
In gas drainage under suction chamber in, the inner end that the gas master takes out flexible pipe passes through one-level branching-passage device for tube and Duo Gen one-levels branch gas exhaust
The outer end of sebific duct is connected, and the inner end of every one-level branch gas exhaust sebific duct passes through two grades of branching-passage device for tube and Duo Generji branches gas
The outer end of pump drainage sebific duct is connected；
The inner end of the fully mechanized coal face return airway, which is provided with working face, working face, is provided with force piece, works as force piece
When the stratum of top is fissure zone, crept into side by side in multiple firedamp taking-out discharging drillings, each firedamp taking-out discharging drilling to fissure zone stratum
Be inserted with gas drainage under suction intubation respectively, the outer end of each gas drainage under suction intubation respectively with two grades of branch's gas exhaust sebific ducts
End is connected, and each gas drainage under suction intubation is made of the floral tube in foundation ditch strengthening engineering, and the inner end of gas drainage under suction intubation is point
Hold shape.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention, wherein on the working face
With goaf, the standpipe for taking a breath is provided with goaf, the tube wall of standpipe is provided with multiple rows of air-vent, and the top of standpipe leads to
One end that threeway is crossed with two extraction pipe layings is connected, and screen cloth, the other end point of two extraction pipe layings are provided with two extraction pipe layings
It is not connected by pipeline with the outer end of two grades of branch's gas exhaust sebific ducts.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention, wherein adjacent described watt
The distance between this extraction intubation is 0.8~1.6m.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention, wherein adjacent described watt
The distance between this extraction intubation is 1.0~1.4m, and the gas master is taken out flexible pipe and is made of polyethylene.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention when in use, can open one
Platform or many gas suction pumps, you can the methane gas in fissure zone stratum is intubated via multiple gas drainage under suctions and extracted out.Therefore,
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention have construction simple, local gas drainage results
Substantially, effectively reduce goaf gas to gush out, the characteristics of preventing the oxidation and spontaneous combustion of Residual coal in goaf.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems to the present invention are made below in conjunction with the accompanying drawings
It is further described.
Brief description of the drawings
Fig. 1 is the structural representation of the three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention
Figure.
Embodiment
As shown in figure 1, the three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention, including position
Middle part in fully mechanized coal face return airway 1 in three soft marine site stratum, fully mechanized coal face return airway 1 is provided with for coal is defeated
The side of left and right two in the belt conveyor seen off, fully mechanized coal face return airway 1 is respectively equipped with row's pillar, fully mechanized coal face return air
Gas master is additionally provided with lane 1 and takes out flexible pipe 3, the outer end that gas master takes out flexible pipe 3 passes through the air inlet of bifurcated pipe and many gas suction pumps
Mouth is connected, and the gas outlet of every gas suction pump is connected by conveying air flue with the external world respectively, and many gas suction pumps are arranged on
In gas drainage under suction chamber in fully mechanized coal face return airway 1, the gas master take out the inner end of flexible pipe 3 by one-level branching-passage device for tube 4 with
The outer end of Duo Gen one-levels branch gas exhaust sebific duct 5 is connected, and the inner end of every one-level branch gas exhaust sebific duct 5 passes through two fractions
Pipe device 8 is connected with the outer end of Duo Generji branches gas exhaust sebific duct 9；
The inner end of the fully mechanized coal face return airway 1, which is provided with working face, working face, is provided with force piece, works as force piece
When the stratum of top is fissure zone, crept into side by side in multiple firedamp taking-out discharging drillings, each firedamp taking-out discharging drilling to fissure zone stratum
Be inserted with gas drainage under suction intubation 6 respectively, the outer end of each gas drainage under suction intubation 6 respectively with two grades of branch's gas exhaust sebific ducts 5
Inner end be connected, each gas drainage under suction intubation 6 is made of the floral tube in foundation ditch strengthening engineerings, in gas drainage under suction intubation 6
Hold to be tip-shape.
As a further improvement on the present invention, have on working face described above in goaf 2, goaf 2 along vertical side
To or horizontal direction be provided with standpipe 7 for taking a breath, the tube wall of standpipe 7 is provided with multiple rows of air-vent, and the top of standpipe 7 passes through three
It is logical to be connected with one end of two extraction pipe layings 10, screen cloth, the other end of two extraction pipe layings 10 are provided with two extraction pipe layings 10
It is connected respectively by pipeline with the outer end of two grades of branch's gas exhaust sebific ducts 9.
As a further improvement on the present invention, above-mentioned adjacent gas drainage under suction intubation the distance between 6 be 0.8~
1.6m。
As a further improvement on the present invention, above-mentioned adjacent gas drainage under suction intubation the distance between 6 be 1.0~
1.4m, the gas master is taken out flexible pipe 3 and is made of polyethylene.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention when in use, can open one
Platform or many gas suction pumps, you can extract the methane gas in fissure zone stratum via multiple gas drainage under suctions intubation 6 out.
The three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems of the present invention are applied to ground and underground
Operation field, the labor intensity for effectively reducing operating personnel is cut than man-hour manually hand-held cutter, and belt strip processing is greatly shortened
Time, particularly in belt strip wilderness demand, 3 times of operating efficiency can be improved, and it is irregular to solve artificial cutting belt
And the problems such as flash.
Claims (4)
1. three soft marine site stratum spontaneous fire seam gas exceptions area gas control systems, it is characterised in that：Including positioned at three soft seas
Fully mechanized coal face return airway in the stratum of domain（1）, fully mechanized coal face return airway（1）Interior middle part, which is provided with, to be used to transfer out coal
The belt conveyor gone, fully mechanized coal face return airway（1）The interior side of left and right two is respectively equipped with row's pillar, fully mechanized coal face return airway
（1）Inside it is additionally provided with gas master and takes out flexible pipe（3）, gas master takes out flexible pipe（3）Outer end pass through bifurcated pipe and many gas suction pumps
Air inlet is connected, and the gas outlet of every gas suction pump is connected by conveying air flue with the external world respectively, many gas suction pump peaces
Mounted in fully mechanized coal face return airway（1）In gas drainage under suction chamber in, the gas master takes out flexible pipe（3）Inner end pass through a fraction
Pipe device（4）With Duo Gen one-levels branch gas exhaust sebific duct（5）Outer end be connected, every one-level branch gas exhaust sebific duct（5）'s
Inner end passes through two grades of branching-passage device for tube（8）With Duo Generji branches gas exhaust sebific duct（9）Outer end be connected；
The fully mechanized coal face return airway（1）Inner end be provided with working face, force piece is provided with working face, when working face branch
When stratum above frame is fissure zone, multiple firedamp taking-out discharging drillings, each firedamp taking-out discharging drilling are crept into side by side to fissure zone stratum
Gas drainage under suction intubation is inside inserted with respectively（6）, each gas drainage under suction intubation（6）Outer end respectively with two grades of branch's gas exhausts
Sebific duct（5）Inner end be connected, each gas drainage under suction intubation（6）It is made of the floral tube in foundation ditch strengthening engineering, gas drainage under suction
Intubation（6）Inner end to be tip-shape.
2. three soft marine site stratum spontaneous fire seam gas exceptions area gas control system according to claim 1, its feature
It is：There is goaf on the working face（2）, goaf（2）In be provided with for take a breath standpipe（7）, standpipe（7）Tube wall
It is provided with multiple rows of air-vent, standpipe（7）Top pass through threeway and two extraction pipe layings（10）One end be connected, two extractions are buried
Pipe（10）It is interior to be provided with screen cloth, two extraction pipe layings（10）The other end pass through pipeline and two grades of branch's gas exhaust sebific ducts respectively
（9）Outer end be connected.
3. three soft marine site stratum spontaneous fire seam gas exceptions area gas control system according to claim 2, its feature
It is：Adjacent gas drainage under suction intubation（6）The distance between be 0.8~1.6m.
4. three soft marine site stratum spontaneous fire seam gas exceptions area gas control system according to claim 3, its feature
It is：Adjacent gas drainage under suction intubation（6）The distance between be 1.0~1.4m, the gas master takes out flexible pipe（3）Using poly-
Ethene is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187440.6A CN107035400B (en) | 2017-03-27 | 2017-03-27 | Gas treatment system for abnormal gas region of easily spontaneous combustion coal bed of three-soft sea area stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187440.6A CN107035400B (en) | 2017-03-27 | 2017-03-27 | Gas treatment system for abnormal gas region of easily spontaneous combustion coal bed of three-soft sea area stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107035400A true CN107035400A (en) | 2017-08-11 |
| CN107035400B CN107035400B (en) | 2020-06-30 |
Family
ID=59534360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187440.6A Expired - Fee Related CN107035400B (en) | 2017-03-27 | 2017-03-27 | Gas treatment system for abnormal gas region of easily spontaneous combustion coal bed of three-soft sea area stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035400B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1317161A1 (en) * | 1985-12-02 | 1987-06-15 | А.М.Морев, В.И.Николин, Ю.В.Деев, В.А.Маркин и Л.Н.Карагодин | Method of degassing working-face adjoining zone of a seam being mined |
| CN104632272A (en) * | 2015-01-29 | 2015-05-20 | 西安科技大学 | 'Three-soft' low-breathability work surface rib shallow hole gas extraction method |
| CN104832209A (en) * | 2015-04-04 | 2015-08-12 | 西安科技大学 | Roadway advanced borehole diversion drainage goaf gas technology |
| CN106223996A (en) * | 2016-09-14 | 2016-12-14 | 煤科集团沈阳研究院有限公司 | Super-large diameter coal bed drilling intubates extraction goaf gas technique |
-
2017
- 2017-03-27 CN CN201710187440.6A patent/CN107035400B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1317161A1 (en) * | 1985-12-02 | 1987-06-15 | А.М.Морев, В.И.Николин, Ю.В.Деев, В.А.Маркин и Л.Н.Карагодин | Method of degassing working-face adjoining zone of a seam being mined |
| CN104632272A (en) * | 2015-01-29 | 2015-05-20 | 西安科技大学 | 'Three-soft' low-breathability work surface rib shallow hole gas extraction method |
| CN104832209A (en) * | 2015-04-04 | 2015-08-12 | 西安科技大学 | Roadway advanced borehole diversion drainage goaf gas technology |
| CN106223996A (en) * | 2016-09-14 | 2016-12-14 | 煤科集团沈阳研究院有限公司 | Super-large diameter coal bed drilling intubates extraction goaf gas technique |
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| Publication number | Publication date |
|---|---|
| CN107035400B (en) | 2020-06-30 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Gas control system in gas abnormal area of spontaneous combustion coal seam in soft sea area Effective date of registration: 20221012 Granted publication date: 20200630 Pledgee: Yantai financing guarantee Group Co.,Ltd. Pledgor: LONGKOU MINING GROUP Co.,Ltd. Registration number: Y2022980018071 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |