CN109184798B - Gas monitoring system under karst landform - Google Patents
Gas monitoring system under karst landform Download PDFInfo
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- CN109184798B CN109184798B CN201811148155.4A CN201811148155A CN109184798B CN 109184798 B CN109184798 B CN 109184798B CN 201811148155 A CN201811148155 A CN 201811148155A CN 109184798 B CN109184798 B CN 109184798B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 76
- 239000003245 coal Substances 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims description 68
- 238000007789 sealing Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 15
- 230000008054 signal transmission Effects 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 239000003623 enhancer Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims 6
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a gas monitoring system under karst landform, which not only starts from a coal mine tunnel to accurately monitor the gas condition in the tunnel, but also detects the gas condition in a coal seam, so that the internal and external combination can improve the reliability of gas monitoring and reduce the difficulty of the gas monitoring in the gas regionality.
Description
Technical Field
The invention relates to a gas monitoring system under karst landform, and belongs to the technical field of gas monitoring equipment.
Background
The east karst landform of China is distributed latitudinally, and the east karst, the subtropical karst and the temperate karst are from south to north. The west of China is limited by water or influenced by topography, and belongs to karsts in arid regions (northwest regions) and karsts in frozen plateaus (Qinghai-Tibet plateaus). For the karst landform, due to the complexity of the formation of the karst landform, the karst landform has great difficulty in mining coal mines and the like under the landform, the gas content in underground layers is often great, in addition, the karst landform has great regionality, the gas content difference at different positions is great, and the higher requirement for monitoring the gas is improved.
At present, a gas monitoring system is generally arranged in a coal mine tunnel by using a simple gas monitoring sensor, which is simple, but has regionality due to the accumulation of gas, and once the gas content in a certain region is too large, irremediable danger can be caused. Therefore, how to improve the accuracy and the safety of monitoring the coal mine underground gas is extremely important for the coal mine gas, especially for monitoring the gas under the karst landform.
Aiming at the problems, the invention provides a gas monitoring system under the karst landform, and improves the accuracy and reliability of gas monitoring.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: the gas monitoring system under the karst landform is characterized by comprising a roadway gas monitoring system, a coal bed gas monitoring system, a wireless communication module and an integrated control center, wherein the roadway gas monitoring system and the coal bed gas monitoring system are respectively provided with the wireless communication module and are in wireless communication connection with the integrated control center through the wireless communication module; wherein the content of the first and second substances,
the roadway gas monitoring system comprises a plurality of movable roadway gas monitoring assemblies arranged on a support at the top of a roadway, each roadway gas monitoring assembly is responsible for monitoring gas information of a certain area in the roadway, and each roadway gas monitoring assembly is movably arranged in the respective monitoring area;
the coal bed gas monitored control system is sealed stretches into and sets up in the drilling in coal bed, and is provided with wireless signal transmission intensifier on the coal bed gas monitored control system, the gas detection sensor signal connection on wireless signal transmission intensifier and the coal bed gas monitored control system.
Further, as preferred, the roadway gas monitoring system comprises a movable suspension guide rail, a longitudinal movable seat, a longitudinal movable plate, a transverse frame, a transverse driving assembly, a support column, a detection control box and a detection sensing assembly, wherein the movable suspension guide rail extends and is fixed on a roadway support along the length direction of the roadway, the longitudinal movable seat can be suspended on the movable suspension guide rail along the movable suspension guide rail in a sliding manner, the longitudinal movable seat is driven by a longitudinal driver to move, the longitudinal movable plate is fixedly arranged at the lower end of the longitudinal movable seat, the transverse frame is arranged on the lower end face of the longitudinal movable plate by adopting the connection of the transverse driving assembly, the detection control box is arranged on the transverse frame by adopting the support column support, and the detection sensing assembly for monitoring gas is connected and arranged on the lower end face of the detection control box, the detection control box is internally provided with a signal processor in signal connection with the detection sensing assembly, and the detection control box is externally provided with a wireless communication module.
Preferably, a longitudinal moving driving gear is arranged in the longitudinal moving seat, a tooth groove matched with the longitudinal moving driving gear is formed in the moving suspension guide rail, the longitudinal moving driving gear rolls along the tooth groove in a matched mode, and the longitudinal moving driving gear is controlled and driven by a control driving assembly.
Further, as preferred, the transverse driving assembly includes positive and negative motor, lead screw, screw seat, guide bar and direction sliding seat, wherein, positive and negative motor is fixed bottom surface one side of longitudinal movement board, the output of positive and negative motor is connected to through the reduction gear the lead screw, the lead screw adopts the screw seat to support on the longitudinal movement board, the lead screw with screw seat screw-thread fit, the guide bar adopts the guide bar seat to support to fix the opposite side of longitudinal movement board, the gliding setting of direction sliding seat shell is in on the guide bar, one of them transverse frame fixed mounting be in on the screw seat, another transverse frame fixed mounting be in on the direction sliding seat.
Further, preferably, the supporting column is provided with an air plate, and the air plate extends downwards along the radial direction of the supporting column and extends to the lower side of the detection control box; and a dust cover is arranged on the wireless communication module on the detection control box.
Further, as a preferred option, the detection sensing assembly is installed on a shock absorption assembly, the shock absorption assembly comprises a first-level shock absorption assembly and a second-level shock absorption assembly, the first-level shock absorption assembly comprises an upper cover plate, a sealing piece, a spring and a lower support plate, the upper cover plate is fixed on the lower support plate through an outer frame, the sealing piece is arranged above the lower support plate, the spring is arranged between the sealing piece and the lower support plate, an installation shaft is fixedly arranged on the lower support plate, the installation shaft sequentially penetrates through the sealing piece and the upper cover plate and then is connected to the lower end side of the detection control box, and the sealing piece and the outer frame are both made of shock absorption elastic materials;
the second grade damper includes down the elasticity bag, it installs to detect sensing element in the elasticity bag down, be provided with the power supply controller who supplies power and control to detecting sensing element on the backup pad down, power supply controller is connected to through the wire detect sensing element, the wire is located down in the elasticity bag.
Further, as preferred, coal seam gas monitored control system includes fixed measuring pole, air extractor, gas detection sensor, wireless signal transmission intensifier, wherein, the sealed income of fixed measuring pole sets up in the drilling of coal seam, the inside hollow structure that is of fixed measuring pole, just gas detection sensor, the spaced laying of wireless signal transmission intensifier are in the cavity intracavity in the fixed measuring pole, the outside intercommunication of fixed measuring pole has the air extractor.
Preferably, the inner end of the fixed detection rod is provided with a ventilation pad, and the ventilation pad prevents the fixed detection rod from being blocked by a coal seam.
Further, as preferred, still be provided with the outer ring chamber coaxial rather than the cavity in inside on the fixed measuring pole, the outer ring chamber is located inside cavity outside, the outer ring intracavity is filled and is provided with the sealed ring cover, the outside of sealed ring cover is the outer loop body of fixed measuring pole, the inboard of sealed ring cover is the inner ring body of fixed measuring pole, and the outer loop body stretches into after the coal seam drilling, the outer loop body receives extrusion deformation to it is right to fix the sealed of measuring pole.
Further, preferably, the inner ring body is further provided with an auxiliary air exhaust hole extending along the length direction of the inner ring body, and the auxiliary air exhaust hole is also communicated with the air extractor.
Compared with the prior art, the invention has the beneficial effects that:
the invention not only starts from a coal mine tunnel to accurately monitor the gas condition in the tunnel, but also detects the gas condition in the coal seam, so that the internal and external combination can improve the reliability of gas monitoring and reduce the difficulty of the gas regionality on gas monitoring.
Drawings
FIG. 1 is a schematic diagram of a gas monitoring system according to the present invention;
FIG. 2 is a schematic structural diagram of a roadway gas monitoring system of the gas monitoring system under the karst landform;
FIG. 3 is a schematic structural diagram of a coal bed gas monitoring system of the gas monitoring system under the karst landform;
FIG. 4 is a schematic view of the inner end structure of the fixed detection rod of the gas monitoring system under the karst landform of the present invention;
FIG. 5 is a schematic view of a shock absorbing assembly of the gas monitoring system of the present invention in a karst terrain;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the gas monitoring system under the karst landform is characterized by comprising a roadway gas monitoring system 2, a coal bed gas monitoring system 4, a wireless communication module 6 and an integrated control center 7, wherein the roadway gas monitoring system and the coal bed gas monitoring system 4 are both provided with the wireless communication module 6 and are both in wireless communication connection with the integrated control center 7 through the wireless communication module 6; wherein the content of the first and second substances,
the roadway gas monitoring system 2 comprises a plurality of movable roadway gas monitoring components 3 which are arranged on a support 1 at the top of the roadway, each roadway gas monitoring component 3 is responsible for monitoring gas information of a certain area in the roadway, and each roadway gas monitoring component is movably arranged in the respective monitoring area;
the coal seam gas monitored control system 4 is sealed stretches into and sets up in the drilling in coal seam, and is provided with wireless signal transmission intensifier on the coal seam gas monitored control system 4, the gas detection sensor signal connection on wireless signal transmission intensifier and the coal seam gas monitored control system.
In this embodiment, the roadway gas monitoring system includes a mobile suspension guide rail 1, a longitudinal moving seat 8, a longitudinal moving plate 2, a transverse frame 19, a transverse driving assembly, a supporting column 15, a detection control box 14 and a detection sensing assembly, wherein the mobile suspension guide rail 1 is fixed on a roadway support along the length direction of the roadway, the longitudinal moving seat 8 can be suspended on the mobile suspension guide rail 1 along the mobile suspension guide rail in a sliding manner, the longitudinal moving seat 8 is driven by a longitudinal driver 9 to move, the longitudinal moving plate 2 is fixedly arranged at the lower end of the longitudinal moving seat, the transverse frame 19 is arranged at the lower end face of the longitudinal moving plate 2 by adopting the transverse driving assembly for connection, the detection control box 14 is arranged on the transverse frame 19 by adopting the supporting column 15 for support, the detection sensing assembly 3 for monitoring gas is arranged on the lower end face of the detection control box 14 by connecting, the detection control box is internally provided with a signal processor in signal connection with the detection sensing assembly, and the detection control box is externally provided with a wireless communication module.
The longitudinal moving seat is internally provided with a longitudinal moving driving gear, the moving suspension guide rail is provided with a tooth groove matched with the longitudinal moving driving gear, the longitudinal moving driving gear rolls along the tooth groove in a matched mode, and the longitudinal moving driving gear is controlled and driven by a control driving assembly.
As a preferred embodiment, the transverse driving assembly includes a forward and reverse rotation motor 10, a screw rod 11, a nut seat, a guide rod 13 and a guide sliding seat 12, wherein the forward and reverse rotation motor 10 is fixed on one side of the bottom surface of the longitudinal moving plate 2, an output end of the forward and reverse rotation motor is connected to the screw rod 11 through a speed reducer, the screw rod 11 is supported on the longitudinal moving plate by the screw rod seat, the screw rod 11 is in threaded fit with the nut seat, the guide rod 13 is supported and fixed on the other side of the longitudinal moving plate by the guide rod seat, the guide sliding seat shell is slidably arranged on the guide rod, one of the transverse frames is fixedly mounted on the nut seat, and the other transverse frame 19 is fixedly mounted on the guide sliding seat 12.
In a preferred embodiment, the supporting column 15 is provided with a wind plate 16, and the wind plate 16 extends downwards along the radial direction of the supporting column and extends to the lower side of the detection control box; and a dust cover is arranged on the wireless communication module on the detection control box.
As a preferred embodiment, the detection sensing assembly is mounted on a shock-absorbing assembly, the shock-absorbing assembly includes a first-level shock-absorbing assembly 17 and a second-level shock-absorbing assembly 18, wherein the first-level shock-absorbing assembly includes an upper cover plate 27, a sealing sheet 28, a spring and a lower support plate, the upper cover plate 27 is fixed on the lower support plate by using an outer frame, the sealing sheet 28 is arranged above the lower support plate, the spring is arranged between the sealing sheet and the lower support plate, an installation shaft is fixedly arranged on the lower support plate, the installation shaft sequentially penetrates through the sealing sheet and the upper cover plate and then is connected to the lower end side of the detection control box, and the sealing sheet and the outer frame are both made of shock-absorbing elastic;
second grade damper includes down the elasticity bag, and lower elasticity bag comprises lower inner bag 30 and lower outer bag 31, it installs to detect the sensing component in the elasticity bag down, be provided with the power supply controller 29 that supplies power and control to detecting the sensing component down in the backup pad, power supply controller 29 is connected to through wire 33 detect the sensing component 32, the wire is located in the elasticity bag down.
As a preferred embodiment, the coal seam gas monitoring system includes a fixed detection rod 19, an air extractor 5, a gas detection sensor 21, and a wireless signal transmission enhancer 20, wherein the fixed detection rod 19 is hermetically inserted into a bore hole formed in a coal seam, the inside of the fixed detection rod 19 is a hollow structure, the gas detection sensor and the wireless signal transmission enhancer are alternately arranged in a hollow cavity in the fixed detection rod, and the outside of the fixed detection rod is communicated with the air extractor. The inner end of the fixed detection rod is provided with a breathable pad 22 which prevents the blockage of the fixed detection rod by the coal seam.
As a preferred embodiment, the fixed detection rod is further provided with an outer ring cavity coaxial with the hollow cavity inside the fixed detection rod, the outer ring cavity is located outside the hollow cavity, a sealing ring sleeve 25 is filled in the outer ring cavity, an outer ring body 24 of the fixed detection rod is arranged outside the sealing ring sleeve 25, an inner ring body 23 of the fixed detection rod is arranged inside the sealing ring sleeve, and after the outer ring body extends into the coal seam drilled hole, the outer ring body is extruded and deformed so as to be convenient for sealing and fixing the fixed detection rod. The inner ring body is also provided with an auxiliary air exhaust hole 26 extending along the length direction of the inner ring body, and the auxiliary air exhaust hole is also communicated with the air extractor 5.
The invention not only starts from a coal mine tunnel to accurately monitor the gas condition in the tunnel, but also detects the gas condition in the coal seam, so that the internal and external combination can improve the reliability of gas monitoring and reduce the difficulty of the gas regionality on gas monitoring.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The gas monitoring system under the karst landform is characterized by comprising a roadway gas monitoring system, a coal bed gas monitoring system, a wireless communication module and an integrated control center, wherein the roadway gas monitoring system and the coal bed gas monitoring system are respectively provided with the wireless communication module and are in wireless communication connection with the integrated control center through the wireless communication module; wherein the content of the first and second substances,
the roadway gas monitoring system comprises a plurality of movable roadway gas monitoring assemblies arranged on a support at the top of a roadway, each roadway gas monitoring assembly is responsible for monitoring gas information of a certain area in the roadway, and each roadway gas monitoring assembly is movably arranged in the respective monitoring area;
the coal bed gas monitoring system hermetically extends into a drill hole in a coal bed, a wireless signal transmission enhancer is arranged on the coal bed gas monitoring system, and the wireless signal transmission enhancer is in signal connection with a gas detection sensor on the coal bed gas monitoring system;
the roadway gas monitoring system comprises a movable suspension guide rail, a longitudinal movable seat, a longitudinal movable plate, a transverse frame, a transverse driving assembly, a support column, a detection control box and a detection sensing assembly, wherein the movable suspension guide rail is fixed on a roadway support along the length direction of a roadway in an extending manner, the longitudinal movable seat can be hung on the movable suspension guide rail along the movable suspension guide rail in a sliding manner, the longitudinal movable seat is driven to move by a longitudinal driver, the longitudinal movable plate is fixedly arranged at the lower end of the longitudinal movable seat, the transverse frame is arranged on the lower end face of the longitudinal movable plate by adopting the transverse driving assembly in a connecting manner, the detection control box is arranged on the transverse frame by adopting the support column in a supporting manner, the detection sensing assembly for monitoring gas is connected and arranged on the lower end face of the detection control box, and a signal processor connected with the detection sensing assembly is arranged in the detection control box, and a wireless communication module is arranged outside the detection control box.
2. The karst-landform gas monitoring system according to claim 1, wherein: the longitudinal moving seat is internally provided with a longitudinal moving driving gear, the moving suspension guide rail is provided with a tooth groove matched with the longitudinal moving driving gear, the longitudinal moving driving gear rolls along the tooth groove in a matched mode, and the longitudinal moving driving gear is controlled and driven by a control driving assembly.
3. The karst-landform gas monitoring system of claim 2, wherein: horizontal drive assembly includes positive and negative motor, lead screw, screw seat, guide bar and direction sliding seat, wherein, positive and negative motor is fixed bottom surface one side of longitudinal movement board, the output of positive and negative motor is connected to through the reduction gear the lead screw, the lead screw adopts the screw seat to support on the longitudinal movement board, the lead screw with screw seat screw-thread fit, the guide bar adopts the guide bar seat to support to fix the opposite side of longitudinal movement board, the gliding setting of direction sliding seat shell is in on the guide bar, one of them horizontal frame fixed mounting be in on the screw seat, another horizontal frame fixed mounting be in on the direction sliding seat.
4. The karst-landform gas monitoring system of claim 3, wherein: the supporting column is provided with an air plate, and the air plate extends downwards along the radial direction of the supporting column and extends to the lower side of the detection control box; and a dust cover is arranged on the wireless communication module on the detection control box.
5. The karst-landform gas monitoring system of claim 4, wherein: the detection sensing assembly is installed on a damping assembly, the damping assembly comprises a primary damping assembly and a secondary damping assembly, the primary damping assembly comprises an upper cover plate, a sealing piece, a spring and a lower support plate, the upper cover plate is fixed on the lower support plate through an outer frame, the sealing piece is arranged above the lower support plate, the spring is arranged between the sealing piece and the lower support plate, an installation shaft is fixedly arranged on the lower support plate, the installation shaft sequentially penetrates through the sealing piece and the upper cover plate and then is connected to the lower end side of the detection control box, and the sealing piece and the outer frame are both made of damping elastic materials;
the second grade damper includes down the elasticity bag, it installs to detect sensing element in the elasticity bag down, be provided with the power supply controller who supplies power and control to detecting sensing element on the backup pad down, power supply controller is connected to through the wire detect sensing element, the wire is located down in the elasticity bag.
6. The karst-landform gas monitoring system of claim 5, wherein: coal seam gas monitored control system includes fixed measuring pole, air extractor, gas detection sensor, wireless signal transmission intensifier, wherein, the sealed income of fixed measuring pole sets up in the drilling of coal seam, the inside hollow structure that is of fixed measuring pole, just gas detection sensor, the spaced laying of wireless signal transmission intensifier are in cavity in the fixed measuring pole, the outside intercommunication of fixed measuring pole has the air extractor.
7. The karst-landform gas monitoring system of claim 6, wherein: the inner end of the fixed detection rod is provided with a breathable pad which prevents the coal bed from blocking the fixed detection rod.
8. The karst-landform gas monitoring system of claim 6, wherein: the fixed detection rod is further provided with an outer ring cavity coaxial with the hollow cavity inside the fixed detection rod, the outer ring cavity is located outside the hollow cavity inside the fixed detection rod, a sealing ring sleeve is filled in the outer ring cavity, the outer side of the sealing ring sleeve is an outer ring body of the fixed detection rod, the inner side of the sealing ring sleeve is an inner ring body of the fixed detection rod, and after the outer ring body extends into a coal seam for drilling, the outer ring body is extruded and deformed so as to be convenient for fixing the sealing of the fixed detection rod.
9. The karst-landform gas monitoring system of claim 8, wherein: the inner ring body is also provided with an air exhaust auxiliary hole extending along the length direction of the inner ring body, and the air exhaust auxiliary hole is also communicated with the air extractor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811148155.4A CN109184798B (en) | 2018-09-29 | 2018-09-29 | Gas monitoring system under karst landform |
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| CN201811148155.4A CN109184798B (en) | 2018-09-29 | 2018-09-29 | Gas monitoring system under karst landform |
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| CN109184798B true CN109184798B (en) | 2020-01-14 |
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| CN111911233B (en) * | 2020-07-07 | 2023-03-14 | 安徽理工大学 | Visual monitoring and early warning system for safety behaviors of non-coal mine personnel |
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