CN110107346B - Dedicated automatic gas system of arranging in colliery hole - Google Patents
Dedicated automatic gas system of arranging in colliery hole Download PDFInfo
- Publication number
- CN110107346B CN110107346B CN201910542858.3A CN201910542858A CN110107346B CN 110107346 B CN110107346 B CN 110107346B CN 201910542858 A CN201910542858 A CN 201910542858A CN 110107346 B CN110107346 B CN 110107346B
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- Prior art keywords
- mixing cavity
- gas
- air
- coal mine
- air inlet
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- Expired - Fee Related
Links
- 238000002156 mixing Methods 0.000 claims abstract description 51
- 239000003245 coal Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000010790 dilution Methods 0.000 claims abstract description 8
- 239000012895 dilution Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 62
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000126 substance Substances 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Accessories For Mixers (AREA)
- Ventilation (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses an automatic gas discharging system special for a coal mine tunnel, which comprises a dilution tank, wherein a mixing cavity is arranged in the dilution tank, the left end face of the mixing cavity is fixedly connected with a connecting rod, the left end of the connecting rod is provided with a judging device for mechanical identification content, the judging device can be used for judging the gas content in a roadway by virtue of the characteristic that gas is insoluble in water and utilizing the change of water level difference as a judging basis for the gas content in the roadway, so that the delay and inaccuracy of manual judgment are avoided, the concentration content of the gas is diluted by utilizing the mode of pumping and pressurizing new gas back and forth, the gas content in the area is ensured not to exceed a dangerous value, the safety in a mine is enhanced, an air inlet pipeline and an air outlet pipeline are designed by utilizing the principle of gas circulation, the conflict between the air inlet pipeline and the air outlet pipeline is ensured, and the safety of equipment is improved.
Description
Technical Field
The invention relates to the technical field of mine hole safety, in particular to an automatic gas discharging system special for a mine hole.
Background
In a coal mining mine, gas generally accumulates at the upper end part of a roadway due to chemical characteristics, when the gas content in a local area reaches a certain concentration, miners can be choked due to oxygen deficiency, and combustion explosion occurs when encountering a fire source to influence the safety in the mine.
Disclosure of Invention
The technical problem is as follows:
the gas exhausting mode of ventilation of blowing needs manual starting, and is easy to forget to open or open untimely, and meanwhile, gas has the characteristic of backflow, so that gas can be brought back again, and potential safety hazards are increased.
In order to solve the problems, the automatic gas exhaust system specially used in the coal mine hole is designed in the embodiment, the automatic gas exhaust system specially used in the coal mine hole comprises a dilution tank, a mixing cavity is arranged in the dilution tank, a connecting rod is fixedly connected with the left end surface of the mixing cavity, a judging device for identifying the content of machinery is arranged at the left end of the connecting rod, the judging device can use a U-shaped pipe which is fixedly connected with the connecting rod and contains water to make the water in the U-shaped pipe have a height difference as a judging basis according to the characteristic that the gas is insoluble in water, a gas inlet device positioned at the upper end of the connecting rod is communicated with the left inner wall of the mixing cavity, the gas inlet device can send gas into the mixing cavity through a gas inlet pipe which is communicated with the mixing cavity, and the left inner wall of the mixing cavity is rotatably connected with a starting piece for controlling, the gas flow meter comprises a starting piece, a transmission shaft, a turntable, a judgment device and a fan, wherein the transmission shaft is rotatably connected with the mixing cavity, the turntable is arranged on the transmission shaft and is slidably connected with the gas inlet pipe to control the gas inlet device, the right-angle deflector rod is slidably connected with the turntable to be linked with the judgment device, a flow guide device capable of guiding and conveying gas is arranged in the mixing cavity, the flow guide device can be arranged on the inner wall of the bottom end of the mixing cavity through a flow guide plate arranged on the inner wall of the bottom end of the mixing cavity, the fan positioned at the upper end of the flow guide plate enables the gas to flow, an inflating device capable of flushing external gas into diluted gas is arranged in the flow guide device, the end face of the right.
Preferably, a pressure sensor abutting against the right-angle deflector rod is arranged on the left end face of the mixing cavity, and the pressure sensor controls the opening or closing of the motor.
The judgment device comprises an air suction cylinder communicated with the left end part of the U-shaped pipe, the right end part of the U-shaped pipe is connected with a piston in a sliding mode, and the piston is connected with the vertical end part of the right-angle deflector rod in a sliding mode.
Wherein, air inlet unit include sliding connection in the air inlet pipe and with the fixed valve that the carousel meshing is connected, be equipped with the fixed through-hole of longitudinal symmetry in the fixed valve, fixed valve left side terminal surface is equipped with the fixed axle, it is connected with the rotation valve to rotate on the fixed axle, be equipped with the through-hole that moves of longitudinal symmetry on the rotation valve.
The starting part comprises a groove arranged at the right end of the transmission shaft, symmetrical slideways are arranged in the groove in the front-back direction in a communicated mode, a sliding block is connected in the groove in a sliding mode and can be connected with the slideways in a sliding mode, a rotating shaft is arranged at the right end of the sliding block, a connecting disc is arranged on the rotating shaft, chain rods which are symmetrical in the center are hinged to the connecting disc, a telescopic plate is arranged in the mixing cavity, a sliding groove which is provided with an opening leftwards and outwards is arranged in the telescopic plate, and a clamping rod which is connected with the chain rods in a hinged mode is connected in the sliding groove.
Wherein, guiding device including set up in sealing ring in the hybrid chamber, sealing ring inner circle fixedly connected with crossbeam, it is connected with the driven shaft to rotate on the crossbeam, be equipped with on the driven shaft can with the lower runner of kelly butt, the fan is located just be located on the driven shaft the lower extreme of crossbeam.
The air charging device comprises a track wheel arranged at the lower end of the driven shaft, air charging holes which extend to the outer side of the mixing cavity and are bilaterally symmetrical are formed in the guide plate in a communicating mode, a sieve plate is fixedly connected into the air charging holes, a lifting rod is connected into the sieve plate in a sliding mode, a lifting ball which is connected with the track wheel in a sliding mode is arranged on the lifting rod, and an air charging barrel which can be extruded by the lifting rod is arranged at the lower end of the sieve plate.
Wherein, the air outlet means including communicate with each other set up in blast pipe on the inner wall of hybrid chamber right side, communicate with each other on the blast pipe and be equipped with and extend to the conveying pipe of sealing ring downside and bilateral symmetry, it is left be equipped with on the conveying pipe and encircle the annular pipe in the transmission shaft outside, conveying pipe inboard fixedly connected with can with slider sliding connection's annular slide rail.
The power part comprises a motor arranged on the inner wall of the top end of the mixing cavity, the lower end of the motor is in power connection with a driving shaft extending to the lower end of the exhaust pipe, and an upper rotating wheel which can be abutted against the clamping rod is arranged on the driving shaft.
The invention has the beneficial effects that: according to the invention, through the characteristic that gas is insoluble in water, the change of water level difference is used as the judgment basis of the gas content in the roadway, the delay and inaccuracy of manual judgment are avoided, the concentration content of the gas is diluted by using the mode of pumping and pressurizing the new gas back and forth, the gas content in the area is ensured not to exceed the dangerous value, the safety in the mine is enhanced, the gas inlet pipeline and the gas outlet pipeline are designed by using the gas circulation principle, the conflict between the gas inlet pipeline and the gas outlet pipeline is ensured, and the safety of equipment is improved.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of the overall structure of an automatic gas discharge system for coal mine tunnel;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a structural view of the interior of the groove of FIG. 1;
FIG. 4 is a schematic view of the structure in the direction "B-B" of FIG. 1;
FIG. 5 is a schematic view of the structure in the direction "C-C" of FIG. 1;
FIG. 6 is a schematic view of the structure in the direction "D-D" of FIG. 1;
FIG. 7 is a schematic view of the structure in the direction "E-E" of FIG. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a special automatic gas discharging system in a coal mine, which is mainly applied to the process of discharging gas from a mine, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to an automatic gas discharging system special for a coal mine hole, which comprises a dilution tank 11, wherein a mixing cavity 12 is arranged in the dilution tank 11, the left end surface of the mixing cavity 12 is fixedly connected with a connecting rod 29, the left end of the connecting rod 29 is provided with a judging device 901 for mechanical identification content, the judging device 901 can make water in the U-shaped pipe 27 generate a height difference as a judging basis according to the water-insoluble characteristic of gas through a U-shaped pipe 27 fixedly connected with the connecting rod 29, the left inner wall of the mixing cavity 12 is communicated with a gas inlet device 902 positioned at the upper end of the connecting rod 29, the gas inlet device 902 can send gas into the mixing cavity 12 through a gas inlet pipe 19 communicated with the mixing cavity 12, the left inner wall of the mixing cavity 12 is rotatably connected with a starting piece 903 for controlling the ventilation state of the gas inlet pipe 19, the starting piece 903 can control the air inlet device 902 through a transmission shaft 23 rotatably connected with the mixing cavity 12, a turntable 22 arranged on the transmission shaft 23 and slidably connected with the air inlet pipe 19, and a right-angle deflector rod 24 slidably connected to the turntable 22 to link with the determining device 901, a flow guide device 904 capable of guiding and conveying air is arranged in the mixing cavity 12, the flow guide device 904 can guide the air through a flow guide plate 36 arranged on the inner wall of the bottom end of the mixing cavity 12 and a fan 38 arranged at the upper end of the flow guide plate 36 to enable the air to flow, an inflating device 905 capable of flushing external air into diluted gas is arranged in the flow guide device 904, an air outlet device 906 is communicated with the right end face of the mixing cavity 12, and a power piece 907 capable of controlling the flow guide device 904 through the starting piece 903 is arranged on the inner wall of the.
Advantageously, the left end face of the mixing chamber 12 is provided with a pressure sensor 25 abutting against the right-angle deflector rod 24, and the pressure sensor 25 controls the opening or closing of the electric motor 14.
According to an embodiment, the following is a detailed description of the determination device 901, wherein the determination device 901 comprises a suction cylinder 26 communicated with the left end portion of the U-shaped tube 27, a piston 28 is slidably connected to the right end portion of the U-shaped tube 27, the piston 28 is slidably connected with the vertical end portion of the quarter-turn lever 24, and the turntable 22 is rotated by the quarter-turn lever 24 during the piston 28 is lifted.
According to the embodiment, the following detailed description is made on the air inlet device 902, the air inlet device 902 includes a fixed valve 18 slidably connected in the air inlet pipe 19 and connected with the rotary disc 22 in a meshing manner, a fixed through hole 17 is formed in the fixed valve 18 in an up-down symmetrical manner, a fixed shaft 21 is arranged on the left end face of the fixed valve 18, a rotary valve 20 is rotatably connected on the fixed shaft 21, a rotary through hole 53 is formed in the rotary valve 20 in a front-back symmetrical manner, and the communication state of the air inlet pipe 19 is controlled by changing the position between the rotary through hole 53 and the fixed through hole 17.
According to an embodiment, the actuating element 903 is described in detail below, the actuating element 903 includes a groove 52 disposed at the right end of the transmission shaft 23, a slide rail 51 symmetrical front and back is disposed in the groove 52, a slide block 50 is slidably connected in the groove 52, the slide block 50 is slidably connected with the slide rail 51, a rotating shaft 47 is disposed at the right end of the slide block 50, a connecting disc 46 is disposed on the rotating shaft 47, a central symmetrical link rod 45 is hinged to the connecting disc 46, a telescopic plate 44 is disposed in the mixing chamber 12, a slide groove 48 with a leftward opening and an outward opening is disposed in the telescopic plate 44, and a clamping rod 49 hinged to the link rod 45 is slidably connected in the slide groove 48.
According to an embodiment, the following detailed description is directed to a flow guiding device 904, where the flow guiding device 904 includes a sealing ring 40 disposed in the mixing chamber 12, a cross beam 39 is fixedly connected to an inner ring of the sealing ring 40, a driven shaft 37 is rotatably connected to the cross beam 39, a lower rotating wheel 41 capable of abutting against the clamping rod 49 is disposed on the driven shaft 37, and the fan 38 is disposed on the driven shaft 37 and at a lower end of the cross beam 39.
According to the embodiment, the following detailed description is carried out to aerating device 905, aerating device 905 including set up in the rail wheel 35 of driven shaft 37 lower extreme, the last expert of guide plate 36 is equipped with the hole 32 of aerifing that extends to the hybrid chamber 12 outside and bilateral symmetry, fixedly connected with sieve 31 in the hole 32 of aerifing, sliding connection has lifting rod 33 in the sieve 31, be equipped with on lifting rod 33 with rail wheel 35 sliding connection's lifting ball 34, sieve 31 lower extreme be equipped with can by lifting rod 33 extruded barrel 30 of inflating fills the air of tunnel lower extreme, and is right the gas in the hybrid chamber 12 dilutes.
According to an embodiment, the following detailed description is provided on the air outlet device 906, the air outlet device 906 includes an exhaust pipe 13 disposed on the inner wall of the right side of the mixing chamber 12, the exhaust pipe 13 is disposed with a conveying pipe 16 extending to the lower side of the sealing ring 40 and symmetrically left and right, the conveying pipe 16 on the left side is disposed with an annular pipe 54 surrounding the outer side of the transmission shaft 23, and the inner side of the conveying pipe 16 is fixedly connected with an annular slide rail 42 capable of being slidably connected with the slide block 50.
According to the embodiment, the power member 907 is described in detail below, the power member 907 includes an electric motor 14 disposed on the inner wall of the top end of the mixing chamber 12, a driving shaft 15 extending to the lower end of the exhaust pipe 13 is connected to the lower end of the electric motor 14, and the upper rotating wheel 43 capable of abutting against the clamping rod 49 is disposed on the driving shaft 15.
The following detailed description of the steps of the automatic gas discharging system dedicated for use in a coal mine tunnel is provided with reference to fig. 1 to 7:
in the content judging process, gas at the upper end of the roadway enters the U-shaped pipe 27 from the air suction cylinder 26, and because the gas is insoluble in water, the water level in the U-shaped pipe 27 rises, the piston 28 is pushed to move upwards, the turntable 22 is further rotated through the right-angle deflector rod 24, and when the content in the air reaches a limit value, the turntable 22 rotates for a quarter of a circle.
During operation, the rotary disc 22 rotates to rotate the fixed valve 18 through meshing, so that the fixed through hole 17 and the movable through hole 53 are overlapped, gas can enter the mixing cavity 12 from the gas inlet pipe 19, meanwhile, the rotary disc 22 enables the connecting disc 46 to rotate for a quarter circle through the slide block 50, further the chain rod 45 pushes the clamping rod 49 to move outwards and respectively abut against the upper rotary wheel 43 and the lower rotary wheel 41, at the moment, the pressure on the pressure sensor 25 is removed, the motor 14 is started, power sequentially passes through the driving shaft 15, the upper rotary wheel 43, the clamping rod 49, the lower rotary wheel 41 and the driven shaft 37 to drive the fan 38 and the rail wheel 35 to rotate, the fan 38 rotates to blow wind from top to bottom, at the same time, the rail wheel 35 enables the lifting rod 33 to move up and down through the sliding of the lifting ball 34, the gas at the bottom of the roadway is filled into the mixing cavity 12, the diluted gas is guided by the guide plate 36, and is filled into the exhaust, finally, the gas is discharged out of the mixing cavity 12, and the gas dilution and blending in local areas are realized.
The invention has the beneficial effects that: according to the invention, through the characteristic that gas is insoluble in water, the change of water level difference is used as the judgment basis of the gas content in the roadway, the delay and inaccuracy of manual judgment are avoided, the concentration content of the gas is diluted by using the mode of pumping and pressurizing the new gas back and forth, the gas content in the area is ensured not to exceed the dangerous value, the safety in the mine is enhanced, the gas inlet pipeline and the gas outlet pipeline are designed by using the gas circulation principle, the conflict between the gas inlet pipeline and the gas outlet pipeline is ensured, and the safety of equipment is improved.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (9)
1. An automatic gas discharge system special for a coal mine tunnel comprises a dilution tank;
a mixing cavity is arranged in the diluting tank, a connecting rod is fixedly connected to the left end face of the mixing cavity, a judging device for identifying the content mechanically is arranged at the left end of the connecting rod, the judging device can make the water in the U-shaped pipe have a height difference as a judgment basis according to the characteristic that gas is insoluble in water by virtue of a U-shaped pipe which is fixedly connected with the connecting rod and contains water, and an air inlet device positioned at the upper end of the connecting rod is communicated with the inner wall of the left side of the mixing cavity;
the air inlet device can send air into the mixing cavity through an air inlet pipe communicated and connected with the mixing cavity, the inner wall of the left side of the mixing cavity is rotatably connected with a starting piece for controlling the air communication state of the air inlet pipe, the starting piece can control the air inlet device through a transmission shaft rotatably connected with the mixing cavity, a turntable arranged on the transmission shaft and slidably connected with the air inlet pipe, and a right-angle deflector rod slidably connected with the turntable is linked with the judging device, and a flow guide device capable of guiding and conveying the air is arranged in the mixing cavity;
the flow guide device can pass through a flow guide plate arranged on the inner wall of the bottom end of the mixing cavity and a fan positioned at the upper end of the flow guide plate to enable gas to flow, an inflating device capable of flushing external gas into the mixing cavity to dilute the gas is arranged in the flow guide device, an air outlet device is communicated with the end face of the right side of the mixing cavity, and a power part capable of controlling the flow guide device through the starting part is arranged on the inner wall of the top end of the mixing cavity.
2. The automatic gas discharging system special for the coal mine tunnel according to claim 1 is characterized in that: and a pressure sensor which is abutted against the right-angle deflector rod is arranged on the left end face of the mixing cavity, and the pressure sensor controls the opening or closing of the motor.
3. The automatic gas discharging system special for the coal mine tunnel according to claim 1 is characterized in that: the judging device comprises an air suction cylinder communicated with the left end part of the U-shaped pipe, the right end part of the U-shaped pipe is connected with a piston in a sliding mode, and the piston is connected with the vertical end part of the right-angle deflector rod in a sliding mode.
4. The automatic gas discharging system special for the coal mine tunnel according to claim 1 is characterized in that: the air inlet device comprises a fixed valve which is connected with the air inlet pipe in a sliding mode and is meshed with the rotary disc, an up-and-down symmetrical fixed through hole is formed in the fixed valve, a fixed shaft is arranged on the left end face of the fixed valve, a rotating valve is connected to the fixed shaft in a rotating mode, and a front-and-back symmetrical rotating through hole is formed in the rotating valve.
5. The automatic gas discharging system special for the coal mine tunnel according to claim 1 is characterized in that: the starting part comprises a groove arranged at the right end of the transmission shaft, symmetrical slideways are arranged in the groove in the front and back direction in a communicated mode, a sliding block is connected in the groove in a sliding mode and can be connected with the slideways in a sliding mode, a rotating shaft is arranged at the right end of the sliding block, a connecting disc is arranged on the rotating shaft, chain rods which are symmetrical in the center are hinged to the connecting disc, a telescopic plate is arranged in the mixing cavity, a chute which is provided with an opening leftwards and outwards is arranged in the telescopic plate, and a clamping rod which is connected with the chain rods in a hinged mode is connected in the chute.
6. The automatic gas discharging system special for the coal mine tunnel according to claim 5, wherein: the guiding device is including setting up in sealing ring in the hybrid chamber, sealing ring inner circle fixedly connected with crossbeam, it is connected with the driven shaft to rotate on the crossbeam, be equipped with on the driven shaft can with the lower runner of kelly butt, the fan is located on the driven shaft and be located the lower extreme of crossbeam.
7. The automatic gas discharging system special for the coal mine tunnel according to claim 6, wherein: the air charging device comprises a track wheel arranged at the lower end of the driven shaft, air charging holes which extend to the outer side of the mixing cavity and are bilaterally symmetrical are formed in the guide plate, a sieve plate is fixedly connected in the air charging holes, a lifting rod is connected in the sieve plate in a sliding mode, a lifting ball which is connected with the track wheel in a sliding mode is arranged on the lifting rod, and an air charging barrel which can be extruded by the lifting rod is arranged at the lower end of the sieve plate.
8. The automatic gas discharging system special for the coal mine tunnel according to claim 6, wherein: the air outlet device including communicate with each other set up in blast pipe on the inner wall of hybrid chamber right side, communicate with each other on the blast pipe and be equipped with and extend to the conveying pipe of sealing ring downside and bilateral symmetry, it is left be equipped with on the conveying pipe and encircle the ring tube in the transmission shaft outside, conveying pipe inboard fixedly connected with can with slider sliding connection's annular slide rail.
9. The automatic gas discharging system special for the coal mine tunnel according to claim 8, wherein: the power part comprises a motor arranged on the inner wall of the top end of the mixing cavity, the lower end of the motor is in power connection with a driving shaft extending to the lower end of the exhaust pipe, and an upper rotating wheel which can be abutted against the clamping rod is arranged on the driving shaft.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542858.3A CN110107346B (en) | 2019-06-21 | 2019-06-21 | Dedicated automatic gas system of arranging in colliery hole |
| JP2019149194A JP2021001720A (en) | 2019-06-21 | 2019-08-15 | Automatic gas discharge system exclusive for use in coal mine |
| GBGB1912037.7A GB201912037D0 (en) | 2019-06-21 | 2019-08-22 | An automatic self-discharge gas drainage system used in a coal mine cave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542858.3A CN110107346B (en) | 2019-06-21 | 2019-06-21 | Dedicated automatic gas system of arranging in colliery hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107346A CN110107346A (en) | 2019-08-09 |
| CN110107346B true CN110107346B (en) | 2020-03-24 |
Family
ID=67495713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910542858.3A Expired - Fee Related CN110107346B (en) | 2019-06-21 | 2019-06-21 | Dedicated automatic gas system of arranging in colliery hole |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2021001720A (en) |
| CN (1) | CN110107346B (en) |
| GB (1) | GB201912037D0 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567589U (en) * | 1979-06-26 | 1981-01-22 | ||
| SU1023109A1 (en) * | 1980-01-30 | 1983-06-15 | Карагандинское отделение Восточного научно-исследовательского института по безопасности работ в горной промышленности | Method of forming front relief and draining slits in development workings |
| JPS6044406U (en) * | 1983-09-05 | 1985-03-28 | 株式会社東芝 | Enclosed internal pressure explosion-proof control system |
| JPS60179073A (en) * | 1984-02-28 | 1985-09-12 | 山中 弘 | Method,equipment and machinery for preventing diasters in hermetically closed space |
| JPH032500A (en) * | 1989-05-30 | 1991-01-08 | Fujita Corp | Operation controller for air blower for ventilation of shaft |
| JP4454163B2 (en) * | 2001-01-26 | 2010-04-21 | 株式会社熊谷組 | Ventilation method in tunnel during construction |
| CN101726572B (en) * | 2009-11-06 | 2013-09-11 | 郑州光力科技股份有限公司 | Gas drainage detection device and water removing device capable of automatically draining water |
| CN102322287B (en) * | 2011-08-23 | 2013-06-19 | 山东理工大学 | Gas drainage, dilution and mixing demister |
| CN102943687B (en) * | 2012-12-03 | 2014-08-20 | 中国矿业大学 | Pressure equalizing and hole sealing method for gas extraction drilling |
| CN203635048U (en) * | 2013-12-12 | 2014-06-11 | 陕西彬长矿业集团有限公司 | Guide device for ventilation air methane oxidation |
-
2019
- 2019-06-21 CN CN201910542858.3A patent/CN110107346B/en not_active Expired - Fee Related
- 2019-08-15 JP JP2019149194A patent/JP2021001720A/en active Pending
- 2019-08-22 GB GBGB1912037.7A patent/GB201912037D0/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN110107346A (en) | 2019-08-09 |
| JP2021001720A (en) | 2021-01-07 |
| GB201912037D0 (en) | 2019-10-09 |
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