CN111734476A - Deep outburst mine gas three-dimensional extraction method - Google Patents
Deep outburst mine gas three-dimensional extraction method Download PDFInfo
- Publication number
- CN111734476A CN111734476A CN202010660112.5A CN202010660112A CN111734476A CN 111734476 A CN111734476 A CN 111734476A CN 202010660112 A CN202010660112 A CN 202010660112A CN 111734476 A CN111734476 A CN 111734476A
- Authority
- CN
- China
- Prior art keywords
- roadway
- extraction
- pipeline
- pumping
- lane
- 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.)
- Pending
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 233
- 238000005086 pumping Methods 0.000 claims abstract description 69
- 239000003245 coal Substances 0.000 claims abstract description 32
- 238000005553 drilling Methods 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005065 mining Methods 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 69
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000006855 networking Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a deep outburst mine gas three-dimensional extraction method, which comprises the following steps: excavating a bottom suction roadway, arranging a plurality of drill sites in the bottom suction roadway, arranging a plurality of cross-layer drill holes in each drill site, arranging a bottom suction roadway extraction pipeline communicated with an extraction pump station in the bottom suction roadway, and then performing gas pre-extraction through the extraction pump station, the bottom suction roadway extraction pipeline and the cross-layer drill holes; excavating a stoping lane corresponding to the bottom extraction lane, arranging a stoping lane extraction pipeline communicated with an extraction pump station and a plurality of bedding drill holes respectively communicated with the stoping lane in the stoping lane, and pre-extracting the coal bed gas in the stoping area through the extraction pump station, the stoping lane extraction pipeline and the bedding drill holes; and arranging a high pumping roadway in the coal face, wherein one end of the high pumping roadway is communicated with the goaf, the other end of the high pumping roadway is communicated with an extraction pump station through an extraction pipeline, and then the goaf is subjected to closed extraction through the extraction pump station, the extraction pipeline and the high pumping roadway. The invention realizes the source-divided treatment of the gas in the deep outburst mine.
Description
Technical Field
The invention relates to the technical field of mine gas extraction, in particular to a three-dimensional extraction method for deep outburst mine gas.
Background
Along with the continuous increase of coal mining depth, the gas content and the gas pressure of a coal seam are increased, the gas emission quantity is increased, and finally, the gas concentration on a working face is too high, so that the safe and efficient production of a coal mine is influenced. In the coal mining process, gas extraction treatment is a measure for effectively reducing the gas emission quantity and preventing gas explosion and coal and gas outburst. The main factors influencing the gas overrun of the fully mechanized top coal caving working face include that gas instantly gushes out under the high-strength fully mechanized top coal caving process of the working face and the top coal caving process produces mining on the goaf so that the gas in the goaf rushes to the working face. The continuous innovation of the coal mining method leads the gas concentration of the upper corner of the working face and the return air flow to be often out of limit, and seriously restricts the safety and the efficiency of mine production. The existing extraction measures can only effectively treat the gas of the coal seam and the gas of the worked-out area, cannot realize the three-dimensional extraction of the gas of the mine and threatens the safety production of the mine.
Disclosure of Invention
The invention aims to provide a deep outburst mine gas three-dimensional extraction method, which is used for solving the problems in the prior art, realizing the source division treatment of gas in a deep outburst mine and ensuring the safe production of the mine.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a deep outburst mine gas three-dimensional extraction method, which comprises the following steps:
(1) excavating a bottom suction lane, arranging a plurality of drill sites in the bottom suction lane, arranging a plurality of cross-layer drill holes in each drill site, arranging a bottom suction lane extraction pipeline communicated with an extraction pump station in the bottom suction lane, communicating each drill hole with the bottom suction lane extraction pipeline, and then pre-extracting gas through the extraction pump station, the bottom suction lane extraction pipeline and the cross-layer drill holes;
(2) excavating a stoping roadway corresponding to the bottom drainage roadway, arranging a stoping roadway extraction pipeline communicated with the extraction pump station and a plurality of bedding drill holes respectively communicated with the stoping roadway in the stoping roadway, and pre-extracting the coal bed gas in the stoping area through the extraction pump station, the stoping roadway extraction pipeline and the bedding drill holes;
(3) and arranging a high pumping lane in the coal face, wherein one end of the high pumping lane is communicated with the goaf, the other end of the high pumping lane is communicated with the pumping pump station through a pumping pipeline, a sealing device is arranged between the high pumping lane and the pumping pipeline, and then the goaf is hermetically pumped through the pumping pump station, the pumping pipeline and the high pumping lane.
Preferably, the bottom pumping roadway comprises an air roadway pumping roadway, a middle pumping roadway and a machine roadway pumping roadway, the air roadway pumping roadway is provided with an air roadway pumping roadway extraction pipeline, the middle pumping roadway is provided with a middle pumping roadway extraction pipeline, and the machine roadway pumping roadway is provided with a machine roadway pumping roadway extraction pipeline.
Preferably, the extraction roadway comprises an air roadway, a machine roadway and an intermediate machine roadway, the air roadway corresponds to the air roadway drainage roadway, the machine roadway corresponds to the machine roadway drainage roadway, the intermediate machine roadway corresponds to the intermediate drainage roadway, an air roadway extraction pipeline is arranged in the air roadway, a machine roadway extraction pipeline is arranged in the machine roadway, and an intermediate machine roadway upper-wall extraction pipeline and an intermediate machine roadway lower-wall extraction pipeline are arranged in the intermediate machine roadway.
Preferably, the mining face further comprises a cutting hole and a cutting hole drainage roadway arranged corresponding to the cutting hole, wherein a cutting hole drainage roadway extraction pipeline is arranged in the cutting hole drainage roadway, the air roadway drainage roadway extraction pipeline, the middle drainage roadway extraction pipeline and the machine roadway drainage roadway extraction pipeline are respectively communicated with the cutting hole drainage roadway extraction pipeline, and the mining face is communicated with the air inlet and return roadway through the cutting hole.
Preferably, the air-way drainage-lane extraction pipeline, the middle drainage-lane extraction pipeline, the machine-way drainage-lane drainage pipeline, the machine-way extraction pipeline and the air-way extraction pipeline are respectively communicated with a return-air lower-mountain extraction main pipeline, the middle machine-way upper-wall extraction pipeline is communicated with the middle machine-way lower-wall extraction pipeline, the air-way extraction pipeline is communicated with the middle machine-way lower-wall extraction pipeline through a first connecting-lane extraction pipeline, the machine-way extraction pipeline is communicated with a second connecting-lane extraction pipeline, the middle machine-way lower-wall extraction pipeline is communicated with the return-air lower-mountain extraction main pipeline, a central return-air large-lane extraction main pipeline, an air shaft extraction main pipeline, a ground extraction main pipeline and an extraction pump station are sequentially connected.
Preferably, the bedding drill hole is arranged through hydraulic hole making; the drilling sites are fan-shaped, and each drilling site comprises 11 through-layer drilling holes.
Preferably, the bottom pumping roadway is positioned on the floor of the coal seam.
Preferably, the extraction pipeline of the stoping roadway comprises a gas extraction main pipe and a plurality of gas extraction branch pipes, each gas extraction branch pipe is communicated with the gas extraction main pipe through a connecting pipe, and an extraction metering device and a valve are arranged on each connecting pipe; the bedding drill hole is communicated with the gas extraction branch pipe through a connecting net pipe, a sampling hole is formed in the connecting net pipe, and a detachable rubber plug is arranged on the sampling hole; one end of the gas extraction branch pipe is connected with a water drainage device.
Compared with the prior art, the invention has the following technical effects:
the method for three-dimensional extraction of the gas in the deep outburst mine realizes the source-divided treatment of the gas in the deep outburst mine and can ensure the safe production of the mine. According to the method for three-dimensional extraction of the gas in the deep outburst mine, an integrated three-dimensional extraction method is realized through the bottom extraction roadway cross-layer drilling, the stoping roadway bedding drilling and the high extraction roadway extraction goaf, so that the gas extraction efficiency is improved, and the labor intensity of workers is reduced; and the dangerous links of gas control are greatly reduced, a large amount of outburst prevention cost is saved, and conditions are provided for safe production of working faces.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of the deep outburst mine gas three-dimensional extraction method of the invention;
FIG. 2 is a schematic plan view of the arrangement of a roadway in the deep outburst mine gas three-dimensional extraction method;
FIG. 3 is a schematic diagram of an arrangement section of a roadway in the deep outburst mine gas three-dimensional extraction method;
FIG. 4 is a schematic networking diagram of bedding drill holes in the deep outburst mine gas three-dimensional extraction method;
FIG. 5 is a schematic diagram of a pipeline structure in the deep outburst mine gas three-dimensional extraction method of the invention;
wherein: 1-goaf, 2-cutting, 3-air lane, 4-high suction lane, 5-machine lane, 6-sealing device, 7-extraction pipe, 8-middle machine lane, 9-air lane suction lane, 10-middle suction lane, 11-machine lane suction lane, 12-working face, 13-coal bed, 14-gas extraction main pipe, 15-gas extraction branch pipe, 16-network connection pipe, 17-bedding drilling, 18-extraction metering device, 19-valve, 20-sampling hole, 21-water drainage device, 22-bedding drilling, 23-drill site, 25-first connection extraction lane pipeline, 26-cutting-hole suction lane extraction pipeline, 27-middle machine lane upper extraction pipeline, 28-middle machine lane lower extraction pipeline, 29-machine lane extraction pipeline, 30-machine lane drainage roadway drainage pipeline, 31-second connecting roadway extraction pipeline, 32-middle drainage roadway extraction pipeline, 33-return air downhill extraction main pipeline, 34-air lane drainage roadway extraction pipeline, 35-central return air main roadway extraction main pipeline, 36-air shaft wellbore extraction main pipeline, 37-ground extraction main pipeline and 38-extraction pump station.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a deep outburst mine gas three-dimensional extraction method, which is used for solving the problems in the prior art, realizing the source division treatment of gas in a deep outburst mine and ensuring the safe production of the mine.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 5: the embodiment provides a deep outburst mine gas three-dimensional extraction method, which comprises the following steps:
(1) excavating a bottom suction roadway, arranging a plurality of drill sites 23 in the bottom suction roadway, arranging a plurality of cross-layer drill holes 22 in each drill site 23, arranging a bottom suction roadway extraction pipeline communicated with an extraction pump station 38 in the bottom suction roadway, communicating each drill hole with the bottom suction roadway extraction pipeline, and then performing gas pre-extraction through the extraction pump station 38, the bottom suction roadway extraction pipeline and the cross-layer drill holes 22;
the bottom pumping roadway comprises an air roadway pumping and releasing roadway 9, a middle pumping and releasing roadway 10 and a machine roadway pumping and releasing roadway 11, wherein an air roadway pumping and releasing roadway extraction pipeline 34 is arranged in the air roadway pumping and releasing roadway 9, a middle pumping and releasing roadway extraction pipeline 32 is arranged in the middle pumping and releasing roadway 10, and a machine roadway pumping and releasing pipeline 30 is arranged in the machine roadway pumping and releasing roadway 11; a cutting drainage roadway extraction pipeline 26 is arranged in the cutting 2 drainage roadway, an air roadway drainage roadway extraction pipeline 34, a middle drainage roadway extraction pipeline 32 and a machine roadway drainage roadway extraction pipeline 30 are respectively communicated with the cutting drainage roadway extraction pipeline 26, and the coal face 12 is communicated with an air inlet and return roadway through the cutting 2; all the bottom pumping lanes are positioned on the bottom plate of the coal seam 13, the vertical distance between the bottom pumping lanes and the coal seam 13 is kept to be 10m, and the distance between the through-layer drill holes 22 and the holes is 4.8 m; the distance between the bottom suction lane of the machine lane 5 and the middle level of the machine lane 5 is 5 m. And (3) constructing layer-penetrating drill holes 22 at 1m of the opening of the machine lane pumping and releasing lane 11, controlling the contour lines of the upper and lower sides of the machine lane 5 to be 15m outside each group of 11 holes. The middle machine lane 8 adopts a bottom suction lane layer-penetrating drill hole 22 to pre-pump the coal seam 13 gas area outburst prevention of the coal lane, and the middle horizontal distance between the middle suction lane 10 and the middle machine lane 8 is 5 m. And constructing layer-penetrating drill holes 22 from 1m at the opening of the middle drainage roadway 10, wherein each group of 11 holes controls 15m outside the contour lines of the upper and lower sides of the middle machine roadway 8 of the working face 12. And (3) opening the cutting hole 2, drawing a layer-penetrating drill hole 22 at the bottom, constructing the layer-penetrating drill hole 22 from the intersection of the working face 12 machine lane drawing and releasing lane 11 and the cutting hole 2, and controlling the contour lines of the upper and lower sides of the cutting hole 2 of the working face 12 to be 20m away from each other by each group of 11 holes. The drill sites 23 are fan-shaped, each drill site 23 comprises 11 through-layer drill holes 22, the fan-shaped drill sites 23 are small in engineering quantity, and drilling accuracy is high.
(2) Excavating a stoping roadway corresponding to the bottom extraction roadway, arranging a stoping roadway extraction pipeline communicated with an extraction pump station 38 and a plurality of bedding drill holes 17 respectively communicated with the stoping roadway in the stoping roadway, and pre-extracting 13 gas in the stoping area coal seam through the extraction pump station 38, the stoping roadway extraction pipeline and the bedding drill holes 17;
wherein, the regional gas control measure of the stope face 12 adopts the bedding drilling 17 to pre-pump the gas of the stope region coal seam 13. The coal seam 13 bedding drill holes 17 are constructed from the air way 3 downwards, the machine way 5 upwards and the middle machine way 8 to two sides, a drill bit with the diameter of 94mm is adopted, the diameter of the formed hole is 110mm, and the designed hole depth is 65-85 m. Four groups of parallel drill holes are constructed in the outer section of the air roadway 3 in the vertical roadway tunneling direction along the coal seam 13, the hole intervals are 1.6m, 2.4m, 3.2m and 4.0m respectively, the designed lengths of the drill holes are 75m, hole sealing is immediately carried out after the drill hole construction is finished, the hole sealing depth is about 12m, the hole sealing pipes of the drill holes are connected with the network connecting pipe 16 through right-angle elbows, and the pre-drainage drill holes in the bedding of the air roadway 3 are extracted by a ground permanent gas extraction pump station 38. And (3) constructing hole making and drilling holes at the upper side and the lower side of the middle machine lane 8, wherein the hole distribution distance of the hydraulic hole making and drilling holes is 4m, the drilling depth is 90m, the hydraulic hole making starts to be constructed when the hole depth is 30m, the hole making interval is 8m, and the size of each hole is about 1 m.
The stoping lane comprises an air lane 3, a machine lane 5 and an intermediate machine lane 8, the air lane 3 corresponds to an air lane drainage lane 9, the machine lane 5 corresponds to a machine lane drainage lane 11, the intermediate machine lane 8 corresponds to an intermediate drainage lane 10, an air lane extraction pipeline is arranged in the air lane 3, a machine lane extraction pipeline 29 is arranged in the machine lane 5, and an intermediate machine lane upper side extraction pipeline 27 and an intermediate machine lane lower side extraction pipeline 28 are arranged in the intermediate machine lane 8.
The extraction pipeline of the stoping roadway comprises a gas extraction main pipe 14 and a plurality of gas extraction branch pipes 15, each gas extraction branch pipe 15 is communicated with the gas extraction main pipe 14 through a connecting pipe, and an extraction metering device 18 and a valve 19 are arranged on each connecting pipe; the bedding drill hole 17 is communicated with the gas extraction branch pipe 15 through a connecting net pipe 16, a sampling hole 20 is formed in the connecting net pipe 16, and a detachable rubber plug is arranged on the sampling hole 20; one end of the gas extraction branch pipe 15 is connected with a water discharger 21 to prevent water accumulation and blockage of the pipeline.
Specifically, the diameter of the extraction branch pipe is 63mm or more, the extraction drill hole is required to be provided with the sampling hole 20 so as to measure the concentration and the negative pressure of single-hole gas (or other gases), and the sampling hole 20 is plugged by a rubber plug when not in use so as to prevent the sampling hole 20 from leaking gas. The mine gas extraction system is provided with a plurality of sets of automatic measurement and monitoring devices for gas extraction, and the gas extraction concentration, pipeline negative pressure, extraction quantity and the like are monitored in real time and accurately measured.
(3) A high pumping lane 4 is arranged in the coal face 12, one end of the high pumping lane 4 is communicated with the goaf 1, the other end of the high pumping lane 4 is communicated with an extraction pump station 38 through an extraction pipeline, a sealing device 6 is arranged between the high pumping lane 4 and the extraction pipeline, and then the goaf 1 is subjected to sealing extraction through the extraction pump station 38, the extraction pipeline and the high pumping lane 4.
Specifically, the height of the caving zone is 3-5 times of the mining height in general, the average mining height of the mining face is 5.5m in the case of combining the example, and the high suction roadway 4 is arranged in a rock fracture development area between 117-27m away from the goaf. And in combination with the lithology of the mining face roof, the high suction lane 4 is arranged at the position of the inner staggered air lane 3 with the horizontal distance of 20 m. The high drawing lane 4 adopts phi 20 multiplied by 2000mm equal strength resin anchor rods, the row spacing between the anchor rods is 800 multiplied by 800mm, each anchor rod is injected with 3 coils of Z2335 type resin anchor explosive rolls, the anchor cable adopts phi 17.8 multiplied by 6500 mm steel stranded wires, the anchor cable disc adopts a 300 multiplied by 14mm butterfly-shaped tray, the three and three are arranged, and the row spacing between the anchor cables is 1500 multiplied by 3200 mm.
The air-way pumping and releasing roadway extraction pipeline 34, the middle pumping and releasing roadway extraction pipeline 32, the machine-way pumping and releasing roadway pumping and releasing pipeline 30, the machine-way extraction pipeline 29 and the air-way extraction pipeline are respectively communicated with a return air lower-mountain extraction main pipeline 33, the middle machine-way upper-slope extraction pipeline 27 is communicated with a middle machine-way lower-slope extraction pipeline 28, the air-way extraction pipeline is communicated with the middle machine-way lower-slope extraction pipeline 28 through a first connecting roadway extraction pipeline 25, the machine-way extraction pipeline 29 is communicated with the middle machine-way lower-slope extraction pipeline 28 through a second connecting roadway extraction pipeline 31, and the return air lower-mountain extraction main pipeline 33, the central return air large-area extraction roadway main pipeline 35, the air shaft main pipeline 36, the ground extraction main pipeline 37 and the extraction pump station 38 are sequentially connected.
The gas extraction in the stoping roadway comprises modes of pre-extraction, simultaneous extraction and enhanced extraction, wherein the gas pre-extraction, the synchronous execution of the mine extraction and the gas extraction are carried out before the mine extraction, the enhanced extraction efficiency of a high gas area is realized, the gas in the pre-extraction coal body is pre-extracted by drilling holes 17 on the bedding layer in the transportation roadway and the return air roadway in the tunneling period, the fan-shaped drilling field 23 is arranged along the transportation roadway after the working face 12 is communicated, the simultaneous extraction and the simultaneous extraction are realized, and the enhanced extraction is carried out aiming at the high gas area. And (3) adopting bedding pre-pumping drilling holes for gas extraction in the stoping roadway, and immediately sealing the holes after the drilling construction is finished. In order to prevent coal and gas outburst during mining operation, a hydraulic punching hole cave-making pressure-relief permeability-increasing technology is adopted, the hydraulic punching hole is made of 1 phi 1.8+2 phi 4.0mm nozzles, and the nozzles with the included angle of 25 degrees are respectively positioned on the top of the nozzle and the three-hole nozzles on the two sides of the nozzle. In order to improve the extraction efficiency, the hole-drilling and hole-sealing pipe is connected with the networking pipe 16 through a right-angle elbow and is connected with the vertical networking pipe 16 through a tee joint, the networking pipe 16 is smoothly and smoothly hung, water accumulation is prevented, and all joints are sealed and do not leak air. And after 24 hours, the extraction drill hole is sealed, networking extraction is needed, a PVC (polyvinyl chloride) connecting pipe 16 matched with the extraction drill hole sealing pipe is selected for connection, and the connecting pipe 16, the hole sealing pipe, the sampling device, the equal-diameter tee joint, the branch port of the extraction pipe 7 and the like are firmly fixed by using a special clamping ring when being connected with each other, so that the hanging is smooth and free from right-angled bend, the water accumulation in the connecting pipe 16 is prevented, and the sealing and air-tight sealing of each connection part are ensured.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A deep outburst mine gas three-dimensional extraction method is characterized by comprising the following steps:
(1) excavating a bottom suction lane, arranging a plurality of drill sites in the bottom suction lane, arranging a plurality of cross-layer drill holes in each drill site, arranging a bottom suction lane extraction pipeline communicated with an extraction pump station in the bottom suction lane, communicating each drill hole with the bottom suction lane extraction pipeline, and then pre-extracting gas through the extraction pump station, the bottom suction lane extraction pipeline and the cross-layer drill holes;
(2) excavating a stoping roadway corresponding to the bottom drainage roadway, arranging a stoping roadway extraction pipeline communicated with the extraction pump station and a plurality of bedding drill holes respectively communicated with the stoping roadway in the stoping roadway, and pre-extracting the coal bed gas in the stoping area through the extraction pump station, the stoping roadway extraction pipeline and the bedding drill holes;
(3) and arranging a high pumping lane in the coal face, wherein one end of the high pumping lane is communicated with the goaf, the other end of the high pumping lane is communicated with the pumping pump station through a pumping pipeline, a sealing device is arranged between the high pumping lane and the pumping pipeline, and then the goaf is hermetically pumped through the pumping pump station, the pumping pipeline and the high pumping lane.
2. The deep outburst mine gas stereoscopic extraction method according to claim 1, characterized in that: the bottom pumping roadway comprises an air roadway pumping roadway, a middle pumping roadway and a machine roadway pumping roadway, wherein an air roadway pumping roadway extraction pipeline is arranged in the air roadway pumping roadway, a middle pumping roadway extraction pipeline is arranged in the middle pumping roadway, and a machine roadway pumping roadway extraction pipeline is arranged in the machine roadway pumping roadway.
3. The deep outburst mine gas stereoscopic extraction method according to claim 2, characterized in that: the extraction roadway comprises an air roadway, a machine roadway and an intermediate machine roadway, wherein the air roadway corresponds to the air roadway drainage roadway, the machine roadway corresponds to the machine roadway drainage roadway, the intermediate machine roadway corresponds to the intermediate drainage roadway, an air roadway extraction pipeline is arranged in the air roadway, a machine roadway extraction pipeline is arranged in the machine roadway, and an intermediate machine roadway upper side extraction pipeline and an intermediate machine roadway lower side extraction pipeline are arranged in the intermediate machine roadway.
4. The deep outburst mine gas stereoscopic extraction method according to claim 3, characterized in that: the coal mining face is communicated with the air inlet and return roadway through the cutting hole.
5. The deep outburst mine gas stereoscopic extraction method according to claim 4, characterized in that: the air roadway drainage roadway extraction pipeline, the middle drainage roadway extraction pipeline, the machine roadway drainage pipeline, the machine roadway extraction pipeline and the air roadway extraction pipeline are respectively communicated with a return air lower side extraction main pipeline, the upper side extraction pipeline of the middle machine roadway is communicated with the lower side extraction pipeline of the middle machine roadway, the air roadway extraction pipeline is communicated with the lower side extraction pipeline of the middle machine roadway through a first connecting roadway extraction pipeline, the machine roadway extraction pipeline is communicated with the lower side extraction pipeline of the middle machine roadway through a second connecting roadway extraction pipeline, and the return air lower side extraction main pipeline, the central return air large return air extraction main pipeline, the air shaft main pipeline, the ground extraction main pipeline and the extraction pump station are sequentially connected.
6. The deep outburst mine gas stereoscopic extraction method according to claim 1, characterized in that: setting the bedding drill hole through hydraulic hole making; the drilling sites are fan-shaped, and each drilling site comprises 11 through-layer drilling holes.
7. The deep outburst mine gas stereoscopic extraction method according to claim 1, characterized in that: the bottom pumping roadway is positioned on the bottom plate of the coal seam.
8. The deep outburst mine gas stereoscopic extraction method according to claim 1, characterized in that: the extraction pipeline of the stoping roadway comprises a gas extraction main pipe and a plurality of gas extraction branch pipes, each gas extraction branch pipe is communicated with the gas extraction main pipe through a connecting pipe, and an extraction metering device and a valve are arranged on each connecting pipe; the bedding drill hole is communicated with the gas extraction branch pipe through a connecting net pipe, a sampling hole is formed in the connecting net pipe, and a detachable rubber plug is arranged on the sampling hole; one end of the gas extraction branch pipe is connected with a water drainage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660112.5A CN111734476A (en) | 2020-07-10 | 2020-07-10 | Deep outburst mine gas three-dimensional extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660112.5A CN111734476A (en) | 2020-07-10 | 2020-07-10 | Deep outburst mine gas three-dimensional extraction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111734476A true CN111734476A (en) | 2020-10-02 |
Family
ID=72655861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010660112.5A Pending CN111734476A (en) | 2020-07-10 | 2020-07-10 | Deep outburst mine gas three-dimensional extraction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111734476A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513361A (en) * | 2021-08-10 | 2021-10-19 | 北京大学 | Method and system for regulating and controlling gas concentration of stope face of high-gas coal mine |
| CN113513359A (en) * | 2021-08-09 | 2021-10-19 | 太原理工大学 | Fully-mechanized coal mining coal seam high-position roadway one-roadway dual-purpose gas extraction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2299972C2 (en) * | 2005-08-04 | 2007-05-27 | Андрей Станиславович Клямко | Method for combined solid mineral and highly-viscous hydrocarbon development |
| CN103758561A (en) * | 2014-02-21 | 2014-04-30 | 淄博安益矿用设备有限公司 | Coal mine gas extraction control system and extraction control method |
| CN104481578A (en) * | 2014-11-27 | 2015-04-01 | 辽宁工程技术大学 | Gas control method for large-mining-height working face of high gas coal seam |
| CN105927269A (en) * | 2016-06-28 | 2016-09-07 | 杨国和 | Gas control method of outburst coal seam |
| CN106761902A (en) * | 2016-12-06 | 2017-05-31 | 安徽理工大学 | A kind of stereo synthesis pressure relief gas pumping mining method suitable for soft rock protective coat extracted |
| CN108397227A (en) * | 2018-03-21 | 2018-08-14 | 六盘水师范学院 | A kind of progressive extinction roadway layout method of tendency |
| CN109899105A (en) * | 2017-12-07 | 2019-06-18 | 陇东学院 | A kind of multistage crossing-hole gas extraction method of low level for coal petrography alternating layers coal seam |
| CN110894794A (en) * | 2019-12-17 | 2020-03-20 | 大同煤矿集团有限责任公司 | Comprehensive treatment method for gas on fully mechanized caving face of three-soft extra-thick coal seam |
-
2020
- 2020-07-10 CN CN202010660112.5A patent/CN111734476A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2299972C2 (en) * | 2005-08-04 | 2007-05-27 | Андрей Станиславович Клямко | Method for combined solid mineral and highly-viscous hydrocarbon development |
| CN103758561A (en) * | 2014-02-21 | 2014-04-30 | 淄博安益矿用设备有限公司 | Coal mine gas extraction control system and extraction control method |
| CN104481578A (en) * | 2014-11-27 | 2015-04-01 | 辽宁工程技术大学 | Gas control method for large-mining-height working face of high gas coal seam |
| CN105927269A (en) * | 2016-06-28 | 2016-09-07 | 杨国和 | Gas control method of outburst coal seam |
| CN106761902A (en) * | 2016-12-06 | 2017-05-31 | 安徽理工大学 | A kind of stereo synthesis pressure relief gas pumping mining method suitable for soft rock protective coat extracted |
| CN109899105A (en) * | 2017-12-07 | 2019-06-18 | 陇东学院 | A kind of multistage crossing-hole gas extraction method of low level for coal petrography alternating layers coal seam |
| CN108397227A (en) * | 2018-03-21 | 2018-08-14 | 六盘水师范学院 | A kind of progressive extinction roadway layout method of tendency |
| CN110894794A (en) * | 2019-12-17 | 2020-03-20 | 大同煤矿集团有限责任公司 | Comprehensive treatment method for gas on fully mechanized caving face of three-soft extra-thick coal seam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513359A (en) * | 2021-08-09 | 2021-10-19 | 太原理工大学 | Fully-mechanized coal mining coal seam high-position roadway one-roadway dual-purpose gas extraction method |
| CN113513361A (en) * | 2021-08-10 | 2021-10-19 | 北京大学 | Method and system for regulating and controlling gas concentration of stope face of high-gas coal mine |
| CN113513361B (en) * | 2021-08-10 | 2022-04-29 | 北京大学 | Method and system for regulating and controlling gas concentration of stope face of high-gas coal mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103835651B (en) | A kind of single hole directional drilling local slip casting mine shaft rising boring technique | |
| CN111206933A (en) | Tunnel construction method for traversing karst water-rich section | |
| CN104653161A (en) | Coal mine underground pulse hydraulic slot cutting-fracturing integral anti-reflection extraction device and method | |
| CN106917637B (en) | Borehole type rock stratum settlement monitoring system and monitoring method | |
| CN111734476A (en) | Deep outburst mine gas three-dimensional extraction method | |
| CN106121657A (en) | A kind of multifunctional numerical control shaft sinking device and construction method | |
| CN113006867B (en) | Combined prevention and control method for multiple disasters before coal mining on high-gas low-lying island working face | |
| CN102644476A (en) | Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel | |
| CN112343647B (en) | Method for preventing and controlling self-discharging pressure-eliminating outburst-eliminating rapid tunneling gas of adjacent air tunnel | |
| CN112377243B (en) | Outburst prevention construction method for coal and gas outburst tunnel | |
| CN104975868A (en) | Top plate high-position boring large-diameter long-drill-hole gas extraction method based on directional drilling | |
| CN103277129A (en) | Technology preventing gas on upper corner of coal mining working face from exceeding limit | |
| CN115199269B (en) | Multi-disaster integrated prevention and control method for strong and weak coupling structure of island outburst coal seam | |
| CN111878079A (en) | Method for treating gas of soft outburst coal seam of underground large mining length working face of coal mine | |
| CN204327172U (en) | Formula boring goaf extraction structure before and after high-rise position | |
| RU2422610C1 (en) | Starting drilling site for directed drilling and preparation of rocks, mineral product for removal | |
| CN111022050A (en) | Fully-closed blasting pressure relief and self-retained roadway method for grouting reconstruction of composite roof | |
| CN114278372B (en) | Diversion arrangement method for underground directional drilling area of huge thick water-rich layer | |
| RU2097568C1 (en) | Method of degassing worked-out spaces of mine fields | |
| CN110778356B (en) | Deep-buried soft coal seam full-hole deep reducing hole protection and sealing system and method | |
| CN110552735B (en) | Method and system for combined extraction of coal seam gas and gas near goaf | |
| CN210049927U (en) | Connecting structure of gas extraction pipeline of lower adjacent layer of directional long drill hole with floor penetrating layer | |
| CN214035758U (en) | Three-dimensional gas extraction system aiming at upper corner gas overrun | |
| CN114575791B (en) | Structure and process for extracting gas from lower protective layer of high-level high-drainage roadway and downward drilling hole | |
| CN113586134B (en) | Method for controlling gas by hole-instead-of-lane combined drainage on coal seam working face |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201002 |