CN110439616B - Mining optical fiber gas monitoring and conversion device - Google Patents
Mining optical fiber gas monitoring and conversion device Download PDFInfo
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- CN110439616B CN110439616B CN201910690117.XA CN201910690117A CN110439616B CN 110439616 B CN110439616 B CN 110439616B CN 201910690117 A CN201910690117 A CN 201910690117A CN 110439616 B CN110439616 B CN 110439616B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000005065 mining Methods 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 title claims description 3
- 239000013307 optical fiber Substances 0.000 title abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000000284 extract Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
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- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Mining & Mineral Resources (AREA)
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Abstract
The invention belongs to the technical field of mine safety equipment, and particularly relates to a mining optical fiber gas monitoring and converting device; the gas monitoring device comprises a shell, wherein a walking mechanism is arranged at the bottom of the shell, a gas monitor is arranged on the wall thickness of the shell, an exhaust fan is arranged in the shell, an exhaust pipe is arranged on one side of the exhaust fan, one end of the exhaust pipe is arranged on the outer side of the shell, and an exhaust pipe is arranged on the other side of the exhaust fan; the gas monitor and the exhaust pipe are arranged on the same surface of the shell in a penetrating manner; according to the invention, the exhaust fan is arranged, when the gas monitor monitors that the gas in front has high concentration, the exhaust fan can be started to switch to the disposal mode, the exhaust fan extracts the gas in front through the exhaust pipe and discharges the gas to the rear through the exhaust pipe, the gas is dispersed, danger caused by the collection of the gas with high concentration is prevented, and the disposal efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of mine safety equipment, and particularly relates to a mining optical fiber gas monitoring and converting device.
Background
In recent years, underground gas outburst and explosion events are one of the main reasons of mine accidents, in order to guarantee the life of miners and the property safety of the state and improve the production conditions of mines, China consumes huge resources to assemble a large number of gas detection devices, and plays a certain role in guaranteeing the gas explosion prevention and the personal safety, the optical fiber gas detection technology appearing in the 20 th century and the 80 th year is a novel gas detection method and has incomparable advantages compared with other gas detection methods. The gas monitoring device produced by the optical fiber gas detection technology has the advantages of high measurement precision, large measurement range, long transmission distance, strong anti-electromagnetic interference capability, good gas selectivity, long service life and the like, and can well monitor and alarm gas.
However, when the existing gas monitor is used, only concentration monitoring can be performed on gas in an area, the area with higher concentration cannot be processed in time, a specially-assigned person is required to be assigned for processing, the efficiency is low, and the danger is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mining optical fiber gas monitoring and converting device, which mainly reduces the concentration of gas through an exhaust fan when a gas monitor monitors that the gas has higher concentration in front so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the mining optical fiber gas monitoring and converting device comprises a shell, wherein a traveling mechanism is arranged at the bottom of the shell, a gas monitor is arranged on the wall thickness of the shell, an exhaust fan is arranged in the shell, an exhaust pipe is arranged on one side of the exhaust fan, one end of the exhaust pipe is arranged on the outer side of the shell, and an exhaust pipe is arranged on the other side of the exhaust fan; the gas monitor and the exhaust pipe are arranged on the same surface of the shell in a penetrating manner; the during operation, current gas monitor can only carry out the monitoring of concentration to the gas in the region when using, can not in time handle the higher region of concentration, consequently install the gas monitor on the casing, through running gear's drive, can monitor the region that needs the monitoring, simultaneously at casing internally mounted air exhauster, when the gas monitor is monitored the place ahead and has the gas of higher concentration, start the air exhauster, convert to the processing mode, the air exhauster passes through the gas extraction pipe and extracts the gas in the place ahead, and discharge to the rear through the dispersion blast pipe, open gas, prevent the gas gathering of higher concentration and arouse danger, the efficiency of handling has been improved.
Preferably, one side of the exhaust pipe is connected with an elastic cylinder, one end of the elastic cylinder is arranged outside the shell, one end of the elastic cylinder, which is positioned outside the shell, is provided with an air injection hole, and the diameter of one end, which is positioned on the inner surface of the elastic cylinder, of the air injection hole is zero; when drawing gas through the blast pipe discharge through the air exhauster, the gas of extraction can be discharged into the elastic cylinder earlier, makes the elastic cylinder of shrink straighten to one side extension, the back of rising, the fumarole can be opened under the influence that the elastic cylinder warp, and gas passes through the elastic cylinder and is discharged in the region far away from the casing, under the unchangeable condition of gas volume, and the density of gas can diminish, can further reduce dangerous emergence.
Preferably, the outer side of the shell is fixedly connected with a supporting rod, the top of the supporting rod is rotatably connected with a rotating plate, and the position of the rotating plate, which is close to the shell, is fixedly connected with an adsorption block; when the elastic cylinder that contracts stretches and rises under the effect of air exhauster, can promote the rotor plate of being connected with the elastic cylinder and rotate, at the pivoted in-process, the adsorption block on the rotor plate of both sides can adsorb together in the twinkling of an eye after reaching the magnetic adsorption scope around the elastic cylinder, extrudees the elastic cylinder in the twinkling of an eye, makes the gas in the elastic cylinder spout with faster speed from the fumarole, and the scope of discharging gas is farther, has further reduced dangerous emergence.
Preferably, the surface of the adsorption block is provided with a contact air bag, and the top and the bottom of the contact air bag are both arranged in an arc shape; adsorb the absorption gasbag on piece surface and adsorb back together each other at the absorption piece, can extrude the contact gasbag, the contact gasbag receives the extrusion and makes two contact gasbag tops and bottom contact together, can block elastic tube bottom and top, elastic tube expands to top and bottom when preventing to extrude elastic tube, make gas can all move to the fumarole, when the fumarole blowout is followed simultaneously to the gas of a great amount, can have faster blowout speed, and then have farther blowout distance.
Preferably, a support plate is fixedly connected to the shell at the bottom of the gas monitor, the gas monitor is connected with the support plate in a sliding manner, a pull rope is fixedly connected to one side of the gas monitor, an elastic rope is fixedly connected to the other side of the gas monitor, the elastic rope is fixedly connected with the inner wall of the shell, and the pull rope is arranged at the top of the support rod through a guide wheel; the surface of the pull rope is provided with a vertical plate, an electric push rod is arranged at the position where the pull rope penetrates through the shell, two sections of plates are arranged at the bottom of the electric push rod, and the two sections of plates can rotate to the right side from the middle part and return to the original position; when the exhaust fan works and the elastic cylinder is expanded by gas, the rotating plate can pull the pull rope once by pulling the vertical plate when the elastic cylinder is expanded every time, the gas monitor is pulled forwards through the pull rope, so that the gas monitor is close to a gas gathering area under the condition that the shell does not move, whether the gas concentration in the front is reduced too fast is monitored, then determining whether the shell needs to move forwards, when the concentration is reduced too fast, the shell does not need to move forwards, otherwise, when the concentration is reduced too slow, the shell moves forwards to continue to extract the concentrated gas in front and discharge the concentrated gas backwards through the exhaust pipe, the two sections of plates can block the vertical plate to prevent the pull rope from returning, when the gas monitor needs to return to the original position, the controller can control the electric push rod to lift the two sections of plates upwards, and the elastic rope pulls the gas monitor back to the original position.
Preferably, a dispersing ball is arranged in the air injection hole and is connected with the elastic cylinder through a connecting rope; when the gas cylinder fumarole was spouted, through the blockking and the direction of dispersion ball, can make the distance behind the gas blowout farther, make the whole scope of blowout simultaneously bigger, the gas can spread fast and make the concentration reduce to below the safety line.
The invention has the technical effects and advantages that:
1. according to the mining optical fiber gas monitoring and converting device, the exhaust fan is arranged, when the gas monitor monitors that the gas in front has high concentration, the exhaust fan is started to convert the gas into a disposal mode, the exhaust fan extracts the gas in front through the exhaust pipe and discharges the gas to the rear through the exhaust pipe, the gas is dispersed, danger caused by the collection of the gas with high concentration is prevented, and the disposal efficiency is improved.
2. According to the mining optical fiber gas monitoring and converting device, the elastic cylinder is arranged, when gas extracted by the exhaust fan is exhausted through the exhaust pipe, the extracted gas can be discharged into the elastic cylinder firstly, the contracted elastic cylinder is straightened and extends to one side, after the gas expands, the gas orifice can be opened under the influence of the deformation of the elastic cylinder, the gas is discharged into a region far away from the shell through the elastic cylinder, the density of the gas can be reduced under the condition that the gas quantity is unchanged, and the occurrence of danger can be further reduced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3 according to the present invention;
FIG. 5 is a view from D-D of FIG. 1 in accordance with the present invention;
FIG. 6 is an enlarged view of the portion C of FIG. 5 in accordance with the present invention;
in the figure: the gas-liquid separation device comprises a shell 1, a traveling mechanism 2, a gas monitor 3, an exhaust fan 4, an exhaust pipe 5, an exhaust pipe 6, an elastic cylinder 7, an air jet hole 8, a support rod 9, a rotating plate 10, an adsorption block 11, a contact air bag 12, a support plate 13, a pull rope 14, an elastic rope 15, a vertical plate 16, an electric push rod 17, two sections of plates 18 and a dispersion ball 19.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, the mining optical fiber gas monitoring and converting device comprises a shell 1, wherein a traveling mechanism 2 is arranged at the bottom of the shell 1, a gas monitor 3 is arranged on the wall thickness of the shell 1, an exhaust fan 4 is arranged inside the shell 1, an exhaust pipe 5 is arranged on one side of the exhaust fan 4, one end of the exhaust pipe 5 is arranged outside the shell 1, and an exhaust pipe 6 is arranged on the other side of the exhaust fan 4; the gas monitor 3 and the exhaust pipe 5 are both arranged on the same surface of the shell 1 in a penetrating way; during operation, current gas monitor 3 can only carry out the monitoring of concentration to the gas in the region when using, can not in time handle the higher region of concentration, consequently install gas monitor 3 on casing 1, through the drive of running gear 2, can monitor the region that needs the monitoring, simultaneously at 1 internally mounted air exhauster 4 of casing, when gas monitor 3 monitors the place ahead has the gas of higher concentration, start air exhauster 4, convert to the processing mode, air exhauster 4 passes through exhaust tube 5 and extracts the gas in the place ahead, and discharge behind blast pipe 6, scatter the gas, prevent the gas gathering of higher concentration and arouse danger, the efficiency of handling has been improved.
One side of the exhaust pipe 6 is connected with an elastic cylinder 7, one end of the elastic cylinder 7 is arranged on the outer side of the shell 1, one end of the elastic cylinder 7, which is positioned on the outer side of the shell 1, is provided with a gas orifice 8, and the diameter of one end, which is positioned on the inner surface of the elastic cylinder 7, of the gas orifice 8 is zero; when drawing gas through blast pipe 6 and discharging through air exhauster 4, the gas of extraction can be discharged into elastic cylinder 7 earlier, makes the elastic cylinder 7 of shrink straighten to extend to one side, and after the expansion, fumarole 8 can be opened under the influence that elastic cylinder 7 warp, and gas passes through elastic cylinder 7 and is discharged in the region far away from casing 1, and under the unchangeable condition of gas volume, the density of gas can diminish, can further reduce dangerous emergence.
A supporting rod 9 is fixedly connected to the outer side of the shell 1, the top of the supporting rod 9 is rotatably connected with a rotating plate 10, and an adsorption block 11 is fixedly connected to the position, close to the shell 1, of the rotating plate 10; when the elastic tube 7 that contracts straightens and rises under the effect of air exhauster 4, can promote the rotor plate 10 of being connected with elastic tube 7 and rotate, at the pivoted in-process, the adsorption blocks 11 on the rotor plate 10 of elastic tube 7 front and back both sides can reach the magnetic adsorption scope after adsorb together in the twinkling of an eye, extrude elastic tube 7 in the twinkling of an eye, make the gas in the elastic tube 7 spout with faster speed from fumarole 8, the scope of discharging gas is farther, has further reduced dangerous emergence.
The surface of the adsorption block 11 is provided with a contact air bag 12, and the top and the bottom of the contact air bag 12 are both arc-shaped; adsorb 11 surperficial absorption gasbags of piece and adsorb back together adsorbing each other in piece 11, can extrude contact gasbag 12, contact gasbag 12 receives the extrusion and makes two contact gasbag 12 tops and bottom contact together, can block elastic tube 7 bottom and top, elastic tube 7 expands to top and bottom when preventing extrusion elastic tube 7, make gas can all move to fumarole 8, when the fumarole 8 blowout is followed simultaneously to the gas of more, can have faster blowout speed, and then have farther blowout distance.
A support plate 13 is fixedly connected to the shell 1 at the bottom of the gas monitor 3, the gas monitor 3 is connected with the support plate 13 in a sliding mode, a pull rope 14 is fixedly connected to one side of the gas monitor 3, an elastic rope 15 is fixedly connected to the other side of the gas monitor 3, the elastic rope 15 is fixedly connected with the inner wall of the shell 1, and the pull rope 14 is arranged at the top of the support rod 9 through a guide wheel; a vertical plate 16 is arranged on the surface of the pull rope 14, an electric push rod 17 is arranged at the position where the pull rope 14 penetrates through the shell 1, two sections of plates 18 are arranged at the bottom of the electric push rod 17, and the two sections of plates 18 can rotate towards the right side from the middle part and return to the original position; when the exhaust fan 4 works and the elastic cylinder 7 is expanded by gas, and the expansion is performed each time, the rotating plate 10 can pull the pull rope 14 once by shifting the vertical plate 16, the gas monitor 3 is pulled forwards by the pull rope 14, so that the gas monitor 3 is close to a gas gathering area under the condition that the shell 1 is not moved, whether the concentration of the gas in the front is reduced too fast is monitored, whether the concentration of the gas in the front is reduced too fast is determined, when the concentration is reduced too fast, the gas monitor is not required to be moved forwards, otherwise, when the concentration is reduced too slow, the shell 1 is moved forwards, the concentrated gas is continuously extracted in the front and is discharged backwards through the exhaust pipe 6, the vertical plate 16 can be blocked by the two plates 18, the pull rope 14 is prevented from returning, when the gas monitor 3 is required to the original position, the electric push rod 17 can be controlled by the controller, the two plates 18 are pulled upwards, the elastic rope 15 pulls the gas monitor 3 back to the original position.
A dispersing ball 19 is arranged in the air injection hole 8, and the dispersing ball 19 is connected with the elastic cylinder 7 through a connecting rope; when the gas cylinder jet orifice 8 is sprayed out, the distance after the gas is sprayed out can be farther through the blocking and guiding of the dispersion ball 19, meanwhile, the whole spraying range is larger, and the gas can be rapidly diffused to reduce the concentration below a safety line.
When the gas monitoring device works, the existing gas monitoring device 3 can only monitor the concentration of gas in the region when in use and cannot timely process the region with higher concentration, therefore, the gas monitoring device 3 is arranged on the shell 1 and can monitor the region to be monitored through the driving of the traveling mechanism 2, meanwhile, the exhaust fan 4 is arranged in the shell 1, when the gas monitoring device 3 monitors that the gas in front has higher concentration, the exhaust fan 4 is started to be converted into a disposal mode, the exhaust fan 4 extracts the gas in front through the exhaust pipe 5 and discharges the gas to the rear through the exhaust pipe 6 to disperse the gas, thereby preventing the danger caused by the aggregation of the gas with higher concentration, improving the disposal efficiency, when the gas extracted through the exhaust fan 4 is discharged through the exhaust pipe 6, the extracted gas can be discharged into the elastic cylinder 7 firstly to enable the contracted elastic cylinder 7 to be straightened, and extend to one side, after rising, the fumarole 8 will be opened under the influence that the elastic cylinder 7 deforms, the gas is discharged to the area far away from the shell 1 through the elastic cylinder 7, under the condition that the gas quantity is not changed, the density of the gas will be reduced, and the danger can be further reduced, when the contracted elastic cylinder 7 is straightened and rises under the action of the exhaust fan 4, the rotating plate 10 connected with the elastic cylinder 7 can be pushed to rotate, in the rotating process, the adsorption blocks 11 on the rotating plate 10 at the front side and the rear side of the elastic cylinder 7 can be adsorbed together instantly after reaching the magnetic adsorption range, the elastic cylinder 7 is extruded instantly, so that the gas in the elastic cylinder 7 is sprayed out from the fumarole 8 at a faster speed, the range of discharging the gas is far, and the danger is further reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a mining optic fibre gas monitoring conversion equipment, includes casing (1), its characterized in that: a travelling mechanism (2) is arranged at the bottom of the shell (1), a gas monitor (3) is arranged on the wall thickness of the shell (1), an exhaust fan (4) is arranged in the shell (1), an exhaust pipe (5) is arranged on one side of the exhaust fan (4), one end of the exhaust pipe (5) is arranged on the outer side of the shell (1), and an exhaust pipe (6) is arranged on the other side of the exhaust fan (4); the gas monitor (3) and the exhaust pipe (5) are arranged on the same surface of the shell (1) in a penetrating manner;
one side of the exhaust pipe (6) is connected with an elastic cylinder (7), one end of the elastic cylinder (7) is arranged on the outer side of the shell (1), one end, located on the outer side of the shell (1), of the elastic cylinder (7) is provided with an air injection hole (8), and the diameter of one end, located on the inner surface of the elastic cylinder (7), of the air injection hole (8) is zero;
a supporting rod (9) is fixedly connected to the outer side of the shell (1), the top of the supporting rod (9) is rotatably connected with a rotating plate (10), and an adsorption block (11) is fixedly connected to the position, close to the shell (1), of the rotating plate (10);
the surface of the adsorption block (11) is provided with a contact air bag (12), and the top and the bottom of the contact air bag (12) are both arranged in an arc shape;
a support plate (13) is fixedly connected to the shell (1) at the bottom of the gas monitor (3), the gas monitor (3) is connected with the support plate (13) in a sliding mode, a pull rope (14) is fixedly connected to one side of the gas monitor (3), an elastic rope (15) is fixedly connected to the other side of the gas monitor (3), the elastic rope (15) is fixedly connected with the inner wall of the shell (1), and the pull rope (14) is arranged at the top of the support rod (9) through a guide wheel; a vertical plate (16) is arranged on the surface of the pull rope (14), an electric push rod (17) is arranged at the position where the pull rope (14) penetrates through the shell (1), two sections of plates (18) are arranged at the bottom of the electric push rod (17), and the two sections of plates (18) can rotate towards the right side from the middle part and return to the original position;
a dispersion ball (19) is arranged in the fumarole (8), and the dispersion ball (19) is connected with the elastic cylinder (7) through a connecting rope;
the gas monitoring instrument is characterized in that a gas monitoring instrument (3) is arranged on a shell (1), a region needing to be monitored can be monitored through the driving of a traveling mechanism (2), an exhaust fan (4) is arranged inside the shell (1), when the gas monitoring instrument (3) monitors that the front of the gas monitoring instrument has gas with higher concentration, the exhaust fan (4) is started to be converted into a disposal mode, the exhaust fan (4) extracts the gas in the front through an exhaust pipe (5) and discharges the gas to the rear through an exhaust pipe (6), the gas is dispersed, the danger caused by the gathering of the gas with higher concentration is prevented, the disposal efficiency is improved, when the gas extracted through the exhaust fan (4) is discharged through the exhaust pipe (6), the extracted gas can be firstly discharged into an elastic cylinder (7), the contracted elastic cylinder (7) is straightened and extends to one side, after the gas expands, an air jet hole (8) is under the influence of the deformation of the elastic cylinder (7, the gas can be opened, the gas is discharged to an area far away from the shell (1) through the elastic tube (7), the density of the gas can be reduced under the condition that the gas quantity is not changed, the danger can be further reduced, when the contracted elastic tube (7) is straightened and expanded under the action of the exhaust fan (4), the rotating plate (10) connected with the elastic tube (7) can be pushed to rotate, in the rotating process, the adsorption blocks (11) on the rotating plates (10) on the front side and the rear side of the elastic tube (7) can be adsorbed together instantly after reaching a magnetic adsorption range, the elastic tube (7) is extruded instantly, the gas in the elastic tube (7) is sprayed out from the air injection hole (8) at a higher speed, the gas discharge range is far away, and the danger is further reduced.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690117.XA CN110439616B (en) | 2019-07-29 | 2019-07-29 | Mining optical fiber gas monitoring and conversion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910690117.XA CN110439616B (en) | 2019-07-29 | 2019-07-29 | Mining optical fiber gas monitoring and conversion device |
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| CN110439616A CN110439616A (en) | 2019-11-12 |
| CN110439616B true CN110439616B (en) | 2020-12-01 |
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| CN111396127B (en) * | 2020-02-27 | 2021-09-10 | 中铁十九局集团第三工程有限公司 | Intelligent tunnel gas monitoring and processing device and control system thereof |
| CN114384207B (en) * | 2021-12-30 | 2023-07-07 | 安徽理工大学 | Colliery is environmental monitoring equipment in pit |
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| CN206338644U (en) * | 2017-02-13 | 2017-07-18 | 宁波金盾电子工业股份有限公司 | Gas warning head lamp |
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| FI110806B (en) * | 2000-03-17 | 2003-03-31 | Sandvik Tamrock Oy | Arrangement for locating unmanned mining vehicles |
| CN202580639U (en) * | 2012-05-18 | 2012-12-05 | 北京扬德环境科技有限公司 | Gas wet-type booster dewatering device |
| CN102777406B (en) * | 2012-07-10 | 2015-04-01 | 胡玮琳 | Advanced reaction type speed regulation wind quantity control method |
| CN202914127U (en) * | 2012-11-28 | 2013-05-01 | 王平显 | Whole sealing mine pneumatic methane accumulation drainage machine |
| CN203285479U (en) * | 2013-05-30 | 2013-11-13 | 黑龙江省延海高新科技有限责任公司 | Underground movable gas drainage pump for coal mine |
| CN104727899A (en) * | 2014-07-25 | 2015-06-24 | 马勒技术投资(中国）有限公司 | Novel one-way valve |
| CN206737941U (en) * | 2017-05-12 | 2017-12-12 | 张丽军 | A kind of coal mine gas, cannon fodder, dust separation ventilation equipment |
| CN207813643U (en) * | 2018-01-16 | 2018-09-04 | 周少玺 | A kind of device for preventing drilling gas from spraying |
| CN207879381U (en) * | 2018-02-13 | 2018-09-18 | 山东腾远建材科技股份有限公司 | A kind of new type mining gas drainage under suction tubing |
| CN208578580U (en) * | 2018-05-06 | 2019-03-05 | 骆少锋 | A kind of high efficiency coal mine ventilation device |
| CN108776207A (en) * | 2018-06-08 | 2018-11-09 | 张丽聪 | A kind of coal mine tunnel safety gas bearing capacity detection device and detection method |
| CN208885338U (en) * | 2018-07-29 | 2019-05-21 | 新昌县凌智机械有限公司 | A kind of coal mine underground mobile gas drainage under suction equipment |
| CN208845227U (en) * | 2018-09-28 | 2019-05-10 | 山西潞安环保能源开发股份有限公司 | A kind of coal mine is with air bag plugging device |
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| CN206338644U (en) * | 2017-02-13 | 2017-07-18 | 宁波金盾电子工业股份有限公司 | Gas warning head lamp |
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