CN104405443A - Coal and gas outburst alarming method of coal face - Google Patents
Coal and gas outburst alarming method of coal face Download PDFInfo
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- CN104405443A CN104405443A CN201410547209.XA CN201410547209A CN104405443A CN 104405443 A CN104405443 A CN 104405443A CN 201410547209 A CN201410547209 A CN 201410547209A CN 104405443 A CN104405443 A CN 104405443A
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- 239000003245 coal Substances 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 572
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000010223 real-time analysis Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 5
- 206010003497 Asphyxia Diseases 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000005856 abnormality Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 102220634580 Vacuolar protein-sorting-associated protein 36_T10S_mutation Human genes 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- 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)
- Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a coal and gas outburst alarming method of a coal face. The alarming method includes a method for reasonably arranging sensors. The data changes of sensors and sensor fault information are analyzed in real time by monitoring the data changes of a methane concentration sensor, a wind direction sensor and a wind speed sensor and sensor faults, and if the combined situation of the information abnormality conforms to an alarming condition, a coal and gas outburst alarming and power-down blocking signal is transmitted. By adequately considering various characteristics of the coal and gas outburst of the coal face of a coal mine, the alarming method is simple to implement, the coal and gas outburst of the coal face can be accurately judged, accidents such as gas explosion caused by the coal and gas outburst can be effectively avoided, and the personnel injury and death caused by the gas suffocation and gas explosion can be avoided or reduced.
Description
Technical field
The present invention relates to a kind of coal-face coal and gas prominent alarm method, the method relates to sensor and the field such as to communicate.
Background technology
Coal is China's main energy sources, accounts for primary energy 70%.Coal industry is high risk industries, and the accidents such as gas, floods, fire, top board, coal dust annoying Safety of Coal Mine Production.In China's coal-mine generation severe and great casualty, majority is particularly serious gas accident, and the number of casualties that gas accident causes also is that in all coal mining accident, proportion is maximum.Therefore, gas accident control is very important.
Gas accident comprises the accidents such as gas explosion, coal and gas prominent, gas asphyxiation, gas combustion.Occur for avoiding or reducing coal and gas prominent accident, there has been proposed multiple coal or rock and gas outburst prevention treatment method, play an important role in Safety of Coal Mine Production work.But existing coal and gas prominent Real-Time Monitoring and forecasting procedure (comprising microseism, sound emission, electromagnetic radiation, infrared radiation etc.) rate of false alarm and rate of failing to report also higher, be difficult to the needs meeting Safety of Coal Mine Production.
Easily there is coal and gas prominent in the coal-face of underground coal mine, if judge the coal and gas prominent in this region exactly, coal and gas prominent effectively can be avoided to cause the accidents such as gas explosion, avoid or reduce because gas asphyxiation and gas explosion cause casualties.
Summary of the invention
The present invention proposes a kind of coal-face coal and gas prominent alarm method.When concrete grammar is as follows:
1. in coal-face, coal-face upper corner, coal-face air intake lane in work plane place, coal-face return airway, coal-face air intake lane near a point air port place, air intake lane, exploiting field, exploiting field return airway, a wing air intake lane, a wing return airway, total air intake lane, main return airway place gamut or the dense methane transducer of height; Air velocity transducer is placed at coal-face return airway, exploiting field return airway, a wing return airway and main return airway; In coal-face air intake lane, air intake lane, exploiting field, a wing air intake lane, total air intake lane place wind transducer; Relevant substation and power work normal, when sensing station arranges correct, the data variation of Real-Time Monitoring methane concentration, wind direction, air velocity transducer and sensor fault, the data variation of real-time analysis sensor and sensor fault information, combined situation as Information abnormity meets alert if, then send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
2. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that coal-face return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4, when the wind speed that coal-face return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
3. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that exploiting field return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4, when the wind speed that exploiting field return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
4. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that one wing return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4, when the wind speed that one wing return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
5. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that main return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4, when the wind speed that main return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
6. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that exploiting field return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that one wing return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4; When the methane concentration that main return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
7. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When coal-face air intake lane wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
8. when coal-face methane transducer T1J fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When air intake lane, exploiting field wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
9. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value (1.0%CH4); Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When one wing air intake lane wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
10. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; The methane concentration that coal-face return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4; When total air intake lane wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
11. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value (1.0%CH4); Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is when point methane concentration that air port place methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
12. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When the methane concentration that air intake lane, exploiting field methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
13. when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value (1.0%CH4); Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When the methane concentration that one wing air intake lane methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
14. coal-face methane transducer faults, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When the methane concentration that total air intake lane methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
Accompanying drawing explanation
Fig. 1 underground monitoring system schematic diagram.
Fig. 2 coal-face sensor mounting location schematic diagram.
Detailed description of the invention
Described alarm method need gather each sensor signal by underground monitoring system, realizes data analysis by monitoring server, is comprised by underground monitoring system as shown in Figure 1:
1. monitoring server (1); Be responsible for gathering each sensor signal, storing, and monitor methane concentration, wind direction, the data variation of air velocity transducer and sensor fault, send warning and fail secure signal by analysis data variation and fault message, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS).
2. monitoring host computer (2); Production management personnel check data variation and the sensor fault of sensor by monitoring host computer, manually can send warning and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), issue dispatch command notice and withdraw from coal mine underground operators.And history monitor data can be transferred from monitoring server.
3. monitor guest machine (3); When monitoring host computer breaks down, carry out work by monitoring guest machine.
4. the network switch (4); Be responsible for management and the exchanges data of the equipment of the mining Ethernet of all accesses.
5. down-hole switch (5); Be responsible for access and the exchanges data of substation.
6. substation (6); Be responsible for access and the exchanges data of sensor.
7. methane transducer (7); When methane concentration reaches warning concentration, send alarm signal; When methane concentration reaches power-off required concentration, cut off relevant range power supply.
8. air velocity transducer (8); When wind speed is abnormal, send alarm signal.
9. wind transducer (9); When there is wind current control, send alarm signal.
In coal-face T1, coal-face upper corner T0, coal-face air intake lane in work plane place T3, coal-face return airway T2, coal-face air intake lane near a point air port place T4, air intake lane, exploiting field T5, exploiting field return airway T6, one wing air intake lane T7, a wing return airway T8, total air intake lane T9, these regional locations of main return airway T10, place gamut or height dense methane transducer T1J, T0J, T3J, T2J, T4J, T5J, T6J, T7J, T8J, T9J, T10J respectively; Wherein T8J and T10J alarming value is set as methane concentration 0.7%; T3J, T4J, T5J, T7J, T9J alarming value is set as methane concentration 0.5%; T0J, T1J, T2J, T6J alarming value is set as methane concentration 1.0%.
At coal-face return airway T2, exploiting field return airway T6, a wing return airway T8 and these regional locations of main return airway T10, place air velocity transducer T2S, T6S, T8S, T10S respectively;
At coal-face air intake lane T3, air intake lane, exploiting field T5, a wing air intake lane T7, total air intake lane these regional locations of T9, place wind transducer T3F, T5F, T7F, T9F respectively.
Coal-face sensor setting position as shown in Figure 2, specifically comprises:
1. coal-face upper corner position, methane transducer (201) T0J.
2. coal-face position, methane transducer (202) T1J.
3. position in coal-face return airway, methane transducer (203) T2J and air velocity transducer (204) T2S.
4. coal-face air intake lane is near position, work plane place, methane transducer (205) T3J and wind transducer (206) T3F.
5. coal-face air intake lane is near a point position, air port place, methane transducer (207) T4J.
Monitoring server real time sensor data, when finding that certain methane transducer catastrophic failure or the methane concentration monitored increase rapidly or reach alarming value, then judges this methane transducer data exception; When certain wind transducer of discovery is reported to the police, then judge this wind transducer data exception; The wind speed that reference monitors simultaneously is not less than air velocity transducer during normal value; Judge whether to report to the police according to following breakdown judge table.
Claims (14)
1. a coal-face coal and gas prominent alarm method, it is characterized in that: underground coal mine, in coal-face, coal-face upper corner, coal-face air intake lane in work plane place, coal-face return airway, coal-face air intake lane near a point air port place, air intake lane, exploiting field, exploiting field return airway, a wing air intake lane, a wing return airway, total air intake lane, main return airway place gamut or the dense methane transducer of height; Air velocity transducer is placed at coal-face return airway, exploiting field return airway, a wing return airway and main return airway; In coal-face air intake lane, air intake lane, exploiting field, a wing air intake lane, total air intake lane place wind transducer; Relevant substation and power work normal, when sensing station arranges correct, the data variation of Real-Time Monitoring methane concentration, wind direction, air velocity transducer and sensor fault, the data variation of real-time analysis sensor and sensor fault information, combined situation as Information abnormity meets alert if, then send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
2. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that coal-face return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4, when the wind speed that coal-face return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
3. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that exploiting field return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4, when the wind speed that exploiting field return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
4. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that one wing return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4, when the wind speed that one wing return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
5. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that main return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4, when the wind speed that main return airway air velocity transducer monitors is not less than normal value, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
6. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that exploiting field return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4; The methane concentration that one wing return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4; When the methane concentration that main return airway methane transducer monitors increases rapidly or reaches alarming value 0.7%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
7. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When coal-face air intake lane wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
8. alarm method as claimed in claim 1, is characterized in that: when coal-face methane transducer T1J fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When air intake lane, exploiting field wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
9. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When one wing air intake lane wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
10. alarm method as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; The methane concentration that coal-face return airway methane transducer monitors increases rapidly or reaches alarming value 1.0%CH4; When total air intake lane wind transducer monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
11. alarm methods as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increase rapidly or reach alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is when point methane concentration that air port place methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
12. alarm methods as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increase rapidly or reach alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When the methane concentration that air intake lane, exploiting field methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
13. alarm methods as claimed in claim 1, it is characterized in that: when coal-face methane transducer fault, or the methane concentration monitored increase rapidly or reach alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When the methane concentration that one wing air intake lane methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
14. alarm methods as claimed in claim 1, it is characterized in that: coal-face methane transducer fault, or the methane concentration monitored increase rapidly or reach alarming value 1.0%CH4; Coal-face upper corner methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; Coal-face air intake lane is near work plane place methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 0.5%CH4; Coal-face return airway methane transducer fault, or the methane concentration monitored increases rapidly or reaches alarming value 1.0%CH4; When the methane concentration that total air intake lane methane transducer monitors increases rapidly or reaches alarming value 0.5%CH4, send coal and gas prominent to report to the police and fail secure signal, cut off underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
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| CN201410547209.XA CN104405443B (en) | 2014-10-16 | 2014-10-16 | Coal and gas outburst alarming method of coal face |
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| CN201410547209.XA CN104405443B (en) | 2014-10-16 | 2014-10-16 | Coal and gas outburst alarming method of coal face |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703887A (en) * | 2016-11-24 | 2017-05-24 | 西安科技大学 | Method of judging secondary gas explosion in mine thermodynamic disaster relief |
| CN107605536A (en) * | 2017-11-02 | 2018-01-19 | 湖南科技大学 | Coal and gas prominent real-time early warning device and method based on Multi-source Information Fusion |
| CN107795336A (en) * | 2017-12-01 | 2018-03-13 | 中国矿业大学(北京) | Based on ranging and the coal-face calamity forecast system to test the speed |
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