CN110107346A - Dedicated automatic gas-removing system in a kind of coal mine hole - Google Patents
Dedicated automatic gas-removing system in a kind of coal mine hole Download PDFInfo
- Publication number
- CN110107346A CN110107346A CN201910542858.3A CN201910542858A CN110107346A CN 110107346 A CN110107346 A CN 110107346A CN 201910542858 A CN201910542858 A CN 201910542858A CN 110107346 A CN110107346 A CN 110107346A
- Authority
- CN
- China
- Prior art keywords
- mixing chamber
- gas
- coal mine
- removing system
- slidably connected
- 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
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Classifications
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- 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
Abstract
Dedicated automatic gas-removing system in a kind of coal mine hole disclosed by the invention, including thinning tank, mixing chamber is equipped in the thinning tank, the mixing chamber left end face is fixedly connected with connecting rod, the connecting rod left end is equipped with the decision maker of mechanical identification content, the decision maker can pass through U-tube aqueous in being fixedly connected with the connecting rod, the present invention characteristic not soluble in water by gas, changed using water-head as the judgment basis of gas bearing capacity in tunnel, avoid the retardance and inaccuracy of artificial judgment, by be filled with come pumpback pressure new gas in the way of, dilute the levels of gas, ensure that the gas bearing capacity in the region does not exceed dangerous values, reinforce the safety inside mine, the principle to be circulated using gas, design air inlet and outlet pipe, guarantee will not conflict between the two, the safety of lifting means.
Description
Technical field
The present invention relates to mine hole security technology area, dedicated automatic gas-removing system in specially a kind of coal mine hole.
Background technique
In the mine of coal mining, gas generally accumulates in the upper part in tunnel due to its chemical characteristic, and in part
When gas bearing capacity in region reaches a certain concentration, miner's anoxic can be made and suffocated, and generation burning is quick-fried when encountering fire source
It is fried, the safety inside mine is influenced, traditional method is just single blowing ventilation, but the reflux of unavoidable gas, nothing
Miner's personal safety in method effective protection mine, and air-exchanging structure needs manually start, and people is not easy to judge mine
In gas bearing capacity, there is the property delayed, a kind of device that can solve the above problem that the present invention illustrates.
Summary of the invention
Technical problem:
The gas-removing mode of blowing ventilation, needs to manually start, is easy to forget to turn on or open not in time, while gas exists back
The characteristic of stream may take back again gas, increase security risk.
To solve the above problems, this example devises dedicated automatic gas-removing system in a kind of coal mine hole, one kind of this example
Dedicated automatic gas-removing system in coal mine hole, including thinning tank, the thinning tank is interior to be equipped with mixing chamber, the mixing chamber left side
End face is fixedly connected with connecting rod, and the connecting rod left end is equipped with the decision maker of mechanical identification content, and the decision maker can
By U-tube aqueous in being fixedly connected with the connecting rod, according to gas characteristic not soluble in water, so that the U-tube
There is difference in height as judgment basis in interior water, the mixing chamber inner left wall communicate be equipped with positioned at the connecting rod upper end into
Device of air, the inlet duct can be fed gas into the mixing chamber by the air inlet pipe being connected with the mixing chamber,
The mixing chamber inner left wall is rotatably connected to the activation members for controlling the air inlet pipe aeration status, the activation members can by with
The transmission shaft of the mixing chamber rotation connection, is set on the transmission shaft and the turntable being slidably connected with the air inlet pipe controls
The inlet duct, and the right angle driving lever that is slidably connected on the turntable link the decision maker, in the mixing chamber
Equipped with the guiding device that gas can be oriented to conveying, the guiding device can be by being set to leading for mixing chamber bottom end inner wall
Flowing plate, and fan positioned at the deflector upper end flow gas, and ambient atmos can be rushed by being equipped in the guiding device
Enter to dilute the air charging system of gas, the mixing chamber right end face is communicated equipped with air-out apparatus, and mixing chamber top inner wall is set
There is the force piece that the guiding device can be controlled by the activation members.
It may be preferred that the mixing chamber left end face is equipped with the pressure sensor abutted with the right angle driving lever, and described
Pressure sensor controls opening or closing for the motor.
Wherein, the decision maker includes communicating the aspiration column for being set to the U-tube left end portion, and the U-tube is right
End part slidably connects piston, and the piston is slidably connected with the vertical end part of right angle driving lever.
Wherein, the inlet duct include be slidably connected in the air inlet pipe and engage with the turntable connect determine valve
Door, it is described determine in valve equipped with through-hole of determining symmetrical above and below, it is described to determine valve left end face and be equipped with fixing axle, in the fixing axle
It is rotatably connected to movable valve, the movable valve is equipped with front and back and symmetrically moves through-hole.
Wherein, the activation members include the groove for being set to the transmission shaft right end, are communicated in the groove equipped with front and back
Symmetrical slideway slidably connects sliding block in the groove, and the sliding block can be slidably connected with the slideway, the sliding block right end
Equipped with shaft, the shaft is equipped with linking disk, is hingedly connected with centrosymmetric chain bar, the mixing chamber on the linking disk
It is interior to be equipped with expansion plate, the sliding slot of opening to the left and outward is equipped in the expansion plate, slidably connected in the sliding slot with it is described
The kelly of chain bar articulated connection.
Wherein, the guiding device includes the sealing ring being set in the mixing chamber, and the sealing ring inner ring is fixed to be connected
It is connected to crossbeam, driven shaft is rotatably connected on the crossbeam, the driven shaft is equipped with the lower runner that can be abutted with the kelly,
The fan is located at the lower end on the driven shaft and being located at the crossbeam.
Wherein, the air charging system includes the rail wheel for being set to the driven shaft lower end, communicates and sets on the deflector
Mixing chamber outside and symmetrical aeration aperture are extended to, sieve plate is fixedly connected in the aeration aperture, is slided in the sieve plate
Dynamic to be connected with lifting rod, the lifting rod, which is equipped with, mentions ball with what the rail wheel was slidably connected, and the sieve plate lower end is equipped with
What can be squeezed by the lifting rod inflates bucket.
Wherein, the air-out apparatus includes communicating the exhaust pipe being set on the right side of the mixing chamber on inner wall, the exhaust
It communicates to be equipped on pipe and extends to the sealing ring downside and symmetrical dispatch tube, the dispatch tube in left side, which is equipped with, to be surround
Ring pipe on the outside of the transmission shaft, it is sliding that the dispatch tube inside is fixedly connected with the annular that can be slidably connected with the sliding block
Rail.
Wherein, the force piece includes the motor being set on the inner wall of the mixing chamber top, the motor lower end
It is connected by power the drive shaft for extending to exhaust pipe lower end, the drive shaft is equipped with the upper runner that can be abutted with the kelly.
The beneficial effects of the present invention are: the characteristic that the present invention is not soluble in water by gas, is changed using water-head as lane
The judgment basis of gas bearing capacity in road, avoids the retardance and inaccuracy of artificial judgment, is filled with new gas using come pumpback pressure
Mode, dilute the levels of gas, ensure that the gas bearing capacity in the region does not exceed dangerous values, reinforce inside mine
Safety, the principle to be circulated using gas design air inlet and outlet pipe, and guarantee will not conflict between the two, lifting means
Safety.
Detailed description of the invention
The present invention is described in detail by following specific embodiments and drawings for ease of explanation,.
Fig. 1 is the overall structure diagram of dedicated automatic gas-removing system in a kind of coal mine hole of the invention；
Fig. 2 is the structural schematic diagram in direction " A-A " of Fig. 1；
Fig. 3 is the topology view of the inside grooves of Fig. 1；
Fig. 4 is the structural schematic diagram in direction " B-B " of Fig. 1；
Fig. 5 is the structural schematic diagram in direction " C-C " of Fig. 1；
Fig. 6 is the structural schematic diagram in direction " D-D " of Fig. 1；
Fig. 7 is the structural schematic diagram in direction " E-E " of Fig. 1.
Specific embodiment
Below with reference to Fig. 1-Fig. 7, the present invention is described in detail, for sake of convenience, now provides to hereafter described orientation
As follows: hereafter described front-rear direction up and down is consistent with the front-rear direction up and down of Fig. 1 projection relation itself.
The present invention relates to automatic gas-removing systems dedicated in a kind of coal mine hole, are mainly used in mine gas-removing gas
In the process, below in conjunction with attached drawing of the present invention, the present invention will be further described:
Dedicated automatic gas-removing system in a kind of coal mine hole of the present invention, including thinning tank 11, in the thinning tank 11
Equipped with mixing chamber 12,12 left end face of mixing chamber is fixedly connected with connecting rod 29, and 29 left end of connecting rod is equipped with machinery
Identify that the decision maker 901 of content, the decision maker 901 can pass through U aqueous in being fixedly connected with the connecting rod 29
Shape pipe 27, according to gas characteristic not soluble in water, so that the water in the U-tube 27 difference in height occurs as judgment basis, institute
It states 12 inner left wall of mixing chamber and communicates the inlet duct 902 being equipped with positioned at 29 upper end of connecting rod, the inlet duct 902 can
It by the air inlet pipe 19 being connected with the mixing chamber 12, feeds gas into the mixing chamber 12, the mixing chamber 12 is left
Side inner wall is rotatably connected to the activation members 903 for controlling 19 aeration status of air inlet pipe, the activation members 903 can by with it is described
The transmission shaft 23 that mixing chamber 12 is rotatablely connected, the turntable for being set on the transmission shaft 23 and being slidably connected with the air inlet pipe 19
The 22 control inlet ducts 902, and the right angle driving lever 24 that is slidably connected on the turntable 22 link the decision maker
901, the mixing chamber 12 is interior to be equipped with the guiding device 904 that gas can be oriented to conveying, and the guiding device 904 can pass through setting
Fan 38 in the deflector 36 of the 12 bottom end inner wall of mixing chamber, and positioned at 36 upper end of deflector flows gas,
The air charging system 905 that ambient atmos can be poured to dilution gas, 12 right-hand end of mixing chamber are equipped in the guiding device 904
Face is communicated equipped with air-out apparatus 906, and the 12 top inner wall of mixing chamber, which is equipped with, to control the water conservancy diversion by the activation members 903
The force piece 907 of device 904.
Valuably, 12 left end face of mixing chamber is equipped with the pressure sensor 25 abutted with the right angle driving lever 24, and
The pressure sensor 25 controls opening or closing for the motor 14.
According to embodiment, decision maker 901 is described in detail below, the decision maker 901 includes communicating setting
In the aspiration column 26 of 27 left end portion of U-tube, 27 right end portion of U-tube slidably connects piston 28, the piston
28 are slidably connected with the vertical end part of the right angle driving lever 24, in 28 uphill process of piston, pass through the right angle driving lever 24
Rotate the turntable 22.
According to embodiment, inlet duct 902 is described in detail below, the inlet duct 902 includes being slidably connected
Valve 18 is determined in engage connection in the air inlet pipe 19 and with the turntable 22, it is described determine in valve 18 equipped with symmetrical above and below
Determine through-hole 17, it is described to determine 18 left end face of valve equipped with fixing axle 21, movable valve 20, institute are rotatably connected in the fixing axle 21
It states movable valve 20 and symmetrically moves through-hole 53 equipped with front and back, become by the dynamic through-hole 53 and the position determined between through-hole 17
Change, controls 19 connected state of air inlet pipe.
According to embodiment, activation members 903 are described in detail below, the activation members 903 include being set to the biography
The groove 52 of 23 right end of moving axis communicates in the groove 52 equipped with the symmetrical slideway 51 in front and back, is slidably connected in the groove 52
There is sliding block 50, the sliding block 50 can be slidably connected with the slideway 51, and 50 right end of sliding block is equipped with shaft 47, the shaft 47
It is equipped with linking disk 46, centrosymmetric chain bar 45 is hingedly connected on the linking disk 46, is equipped with and stretches in the mixing chamber 12
Contracting plate 44 is equipped with the sliding slot 48 of opening to the left and outward in the expansion plate 44, slidably connected in the sliding slot 48 with it is described
The kelly 49 that chain bar 45 is articulated and connected.
According to embodiment, guiding device 904 is described in detail below, the guiding device 904 includes being set to institute
The sealing ring 40 in mixing chamber 12 is stated, 40 inner ring of sealing ring is fixedly connected with crossbeam 39, is rotatablely connected on the crossbeam 39
There is driven shaft 37, the driven shaft 37 is equipped with the lower runner 41 that can be abutted with the kelly 49, and the fan 38 is located at described
Lower end on driven shaft 37 and positioned at the crossbeam 39.
According to embodiment, air charging system 905 is described in detail below, the air charging system 905 includes being set to institute
The rail wheel 35 of 37 lower end of driven shaft is stated, is communicated on the deflector 36 on the outside of mixing chamber 12 and symmetrical equipped with extending to
Aeration aperture 32 is fixedly connected with sieve plate 31 in the aeration aperture 32, lifting rod 33 is slidably connected in the sieve plate 31, described to mention
Pull rod 33, which is equipped with, mentions ball 34 with what the rail wheel 35 was slidably connected, and 31 lower end of sieve plate is equipped with can be by the lifting rod
33 squeeze inflate bucket 30, be filled with the air of filling tunnel lower end, the gas in the mixing chamber 12 be diluted.
According to embodiment, air-out apparatus 906 is described in detail below, the air-out apparatus 906 includes communicating setting
Exhaust pipe 13 on the 12 right side inner wall of mixing chamber, communicates on the exhaust pipe 13 to be equipped with and extends under the sealing ring 40
Side and symmetrical dispatch tube 16, the dispatch tube 16 in left side are equipped with the ring pipe around 23 outside of transmission shaft
54, the endless glide 42 that can be slidably connected with the sliding block 50 is fixedly connected on the inside of the dispatch tube 16.
According to embodiment, force piece 907 is described in detail below, the force piece 907 includes being set to described mix
The motor 14 on 12 top inner wall of chamber is closed, 14 lower end of motor is connected by power the driving for extending to 13 lower end of exhaust pipe
Axis 15, the drive shaft 15 are equipped with the upper runner 43 that can be abutted with the kelly 49.
Below in conjunction with Fig. 1 to Fig. 7 to the use step of dedicated automatic gas-removing system in the coal mine hole one of this paper
It is described in detail:
In content deterministic process, the gas of tunnel upper end enters inside U-tube 27 from aspiration column 26, since gas is not soluble in water,
So that the water level in U-tube 27 rises, piston 28 is pushed to move up, and then pass through the rotation turntable 22 of right angle driving lever 24, in air
When content reaches the limit values, turntable 22 rotates a quarter circle.
When work, the rotation of turntable 22 determines valve 18 by engagement rotation, so that determining position between through-hole 17 and dynamic through-hole 53
It being overlapped, gas can enter in mixing chamber 12 from air inlet pipe 19, meanwhile, turntable 22 makes to be connected four points of the rotation of disk 46 by sliding block 50
One of circle, and then by chain bar 45 push kelly 49 on the outside of move, abutted respectively with upper runner 43, lower runner 41, at this point, pressure
Pressure cancels on sensor 25, starts motor 14, and power passes sequentially through drive shaft 15, upper runner 43, kelly 49, lower runner
41, driven shaft 37 drives fan 38 and rail wheel 35 to rotate, and the rotation of fan 38 blows wind from top to bottom, meanwhile, rail wheel 35 according to
By proposing the sliding of ball 34 so that lifting rod 33 moves up and down, squeezes inflate bucket 30 back and forth, the gas of tunnel bottom is filled with mixed
It closes in chamber 12, gas is filled in exhaust pipe 13 by the gas after dilution since deflector 36 is oriented to from dispatch tube 16, final to be discharged
Outside mixing chamber 12, realize that the gas dilution of regional area reconciles.
The beneficial effects of the present invention are: the characteristic that the present invention is not soluble in water by gas, is changed using water-head as lane
The judgment basis of gas bearing capacity in road, avoids the retardance and inaccuracy of artificial judgment, is filled with new gas using come pumpback pressure
Mode, dilute the levels of gas, ensure that the gas bearing capacity in the region does not exceed dangerous values, reinforce inside mine
Safety, the principle to be circulated using gas design air inlet and outlet pipe, and guarantee will not conflict between the two, lifting means
Safety.
In the above manner, those skilled in the art can be made within the scope of the invention according to operating mode it is various
Change.
Claims (9)
1. dedicated automatic gas-removing system in a kind of coal mine hole, including thinning tank；
Mixing chamber is equipped in the thinning tank, the mixing chamber left end face is fixedly connected with connecting rod, the connecting rod left end
Decision maker equipped with mechanical identification content, the decision maker can pass through U aqueous in being fixedly connected with the connecting rod
Shape pipe, according to gas characteristic not soluble in water, so that there is difference in height as judgment basis in the water in the U-tube, it is described mixed
It closes chamber inner left wall and communicates the inlet duct being equipped with positioned at the connecting rod upper end；
The inlet duct can be fed gas into the mixing chamber, institute by the air inlet pipe being connected with the mixing chamber
State mixing chamber inner left wall and be rotatably connected to the activation members for controlling the air inlet pipe aeration status, the activation members can by with institute
The transmission shaft for stating mixing chamber rotation connection, is set on the transmission shaft and the turntable being slidably connected with the air inlet pipe controls institute
Inlet duct is stated, and the right angle driving lever linkage decision maker being slidably connected on the turntable, is set in the mixing chamber
There is the guiding device that gas can be oriented to conveying；
The guiding device can be by being set to the deflector of mixing chamber bottom end inner wall, and is located at the deflector upper end
Fan flow gas, the air charging system that ambient atmos can be poured to dilution gas is equipped in the guiding device, it is described mixed
It closes chamber right end face to communicate equipped with air-out apparatus, mixing chamber top inner wall is equipped with can be by leading described in activation members control
Flow the force piece of device.
2. dedicated automatic gas-removing system in a kind of coal mine hole as described in claim 1, it is characterised in that: the mixing chamber
Left end face is equipped with the pressure sensor abutted with the right angle driving lever, and the pressure sensor controls opening for the motor
It opens or closes.
3. dedicated automatic gas-removing system in a kind of coal mine hole as described in claim 1, it is characterised in that: the judgement dress
The aspiration column that the U-tube left end portion is set to including communicating is set, the U-tube right end portion slidably connects piston, institute
Piston is stated to be slidably connected with the vertical end part of right angle driving lever.
4. dedicated automatic gas-removing system in a kind of coal mine hole as described in claim 1, it is characterised in that: the air inlet dress
The valve of determining including being slidably connected in the air inlet pipe and engaging with the turntable connection is set, it is described to determine to be equipped with up and down in valve
Symmetrically determine through-hole, it is described determine valve left end face and be equipped with fixing axle, movable valve is rotatably connected in the fixing axle, it is described to move
Valve is equipped with front and back and symmetrically moves through-hole.
5. dedicated automatic gas-removing system in a kind of coal mine hole as described in claim 1, it is characterised in that: the activation members
Groove including being set to the transmission shaft right end communicates in the groove equipped with the symmetrical slideway in front and back, sliding in the groove
Dynamic to be connected with sliding block, the sliding block can be slidably connected with the slideway, and the sliding block right end is equipped with shaft, and the shaft is equipped with
It is connected disk, centrosymmetric chain bar is hingedly connected on the linking disk, is equipped with expansion plate, the expansion plate in the mixing chamber
It is interior to be equipped with the sliding slot of opening to the left and outward, the kelly with chain bar articulated connection is slidably connected in the sliding slot.
6. dedicated automatic gas-removing system in a kind of coal mine hole as claimed in claim 5, it is characterised in that: the water conservancy diversion dress
The sealing ring including being set in the mixing chamber is set, the sealing ring inner ring is fixedly connected with crossbeam, rotates on the crossbeam
It is connected with driven shaft, the driven shaft is equipped with the lower runner that can be abutted with the kelly, and the fan is located at the driven shaft
Lower end that is upper and being located at the crossbeam.
7. dedicated automatic gas-removing system in a kind of coal mine hole as claimed in claim 6, it is characterised in that: the inflation dress
The rail wheel including being set to the driven shaft lower end is set, communicates to be equipped on the deflector and extends on the outside of mixing chamber and left and right
Symmetrical aeration aperture is fixedly connected with sieve plate in the aeration aperture, lifting rod, the lifting rod is slidably connected in the sieve plate
It is equipped with and mentions ball with what the rail wheel was slidably connected, the sieve plate lower end is equipped with and can be inflated by what the lifting rod squeezed
Bucket.
8. dedicated automatic gas-removing system in a kind of coal mine hole as claimed in claim 5, it is characterised in that: the outlet dress
It sets including communicating the exhaust pipe being set on the right side of the mixing chamber on inner wall, is communicated on the exhaust pipe described close equipped with extending to
On the downside of seal ring and symmetrical dispatch tube, the dispatch tube in left side are equipped with the ring pipe on the outside of the transmission shaft,
The endless glide that can be slidably connected with the sliding block is fixedly connected on the inside of the dispatch tube.
9. dedicated automatic gas-removing system in a kind of coal mine hole as claimed in claim 8, it is characterised in that: the force piece
Including the motor being set on the inner wall of the mixing chamber top, the motor lower end, which has been connected by power, to be extended under exhaust pipe
The drive shaft at end, the drive shaft are equipped with the upper runner that can be abutted with the kelly.
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 true CN110107346A (en) | 2019-08-09 |
| CN110107346B CN110107346B (en) | 2020-03-24 |
Family
ID=67495713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910542858.3A Active 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) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101726572A (en) * | 2009-11-06 | 2010-06-09 | 郑州市光力科技发展有限公司 | Gas drainage detection device and water removing device capable of automatically draining water |
| CN102322287A (en) * | 2011-08-23 | 2012-01-18 | 山东理工大学 | Mash gas extraction diluted mixture demister |
| CN102943687A (en) * | 2012-12-03 | 2013-02-27 | 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567589U (en) * | 1979-06-26 | 1981-01-22 | ||
| 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 |
-
2019
- 2019-06-21 CN CN201910542858.3A patent/CN110107346B/en active Active
- 2019-08-15 JP JP2019149194A patent/JP2021001720A/en active Pending
- 2019-08-22 GB GBGB1912037.7A patent/GB201912037D0/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101726572A (en) * | 2009-11-06 | 2010-06-09 | 郑州市光力科技发展有限公司 | Gas drainage detection device and water removing device capable of automatically draining water |
| CN102322287A (en) * | 2011-08-23 | 2012-01-18 | 山东理工大学 | Mash gas extraction diluted mixture demister |
| CN102943687A (en) * | 2012-12-03 | 2013-02-27 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021001720A (en) | 2021-01-07 |
| GB201912037D0 (en) | 2019-10-09 |
| CN110107346B (en) | 2020-03-24 |
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