CN104405443B - 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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- CN104405443B CN104405443B CN201410547209.XA CN201410547209A CN104405443B CN 104405443 B CN104405443 B CN 104405443B CN 201410547209 A CN201410547209 A CN 201410547209A CN 104405443 B CN104405443 B CN 104405443B
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- 239000003245 coal Substances 0.000 title claims abstract description 116
- 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 566
- 238000012544 monitoring process Methods 0.000 claims abstract description 89
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- 239000012491 analyte Substances 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 4
- 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
- 238000005065 mining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 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
- 230000004888 barrier function Effects 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
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention 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 is related to sensor and communication etc.
Field.
Background technology
Coal is China's main energy sources, accounts for primary energy 70%.Coal industry is high risk industries, gas, floods, fire
The accidents such as calamity, top board, coal dust annoying Safety of Coal Mine Production.China's coal-mine occurs in severe and great casualty, and majority is particularly serious watt
This accident, the number of casualties caused by gas accident is also proportion maximum in all coal mining accidents.Therefore, gas accident
Preventing and treating is particularly significant.
Gas accident includes the accidents such as gas explosion, coal and gas prominent, gas asphyxiation, gas combustion.To avoid or subtracting
Few coal and gas prominent accident occurs, there has been proposed various coals or rock and gas outburst prevention treatment method, in Safety of Coal Mine Production
Play an important role in work.But existing coal and gas prominent real-time monitoring is with forecasting procedure (including microseism, acoustic emission, electricity
Magnetic radiation, infra-red radiation etc.) rate of false alarm and rate of failing to report it is also higher, it is difficult to meet the needs of Safety of Coal Mine Production.
Easily there is coal and gas prominent in the coal-face of underground coal mine, if judging the coal and gas in the region exactly
It is prominent, coal and gas prominent can be prevented effectively from and cause the accidents such as gas explosion, it is to avoid or reduce because gas asphyxiation and gas are quick-fried
It is fried to cause casualties.
The content of the invention
The present invention proposes a kind of coal-face coal and gas prominent alarm method.When concrete grammar it is as follows：
1. in coal-face, coal-face upper corner, coal-face air intake lane at work surface, coal work
In the return airway of face, coal-face air intake lane at point air port, exploiting field air intake lane, 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；In coal-face return airway, exploiting field
Return airway, a wing return airway and main return airway place air velocity transducer；In coal-face air intake lane, exploiting field air intake lane, a wing
Air intake lane, total air intake lane place wind transducer；Normal in related substation and power work, sensing station arranges correct feelings
Under condition, real-time monitoring methane concentration, wind direction, the data variation of air velocity transducer and sensor fault, real-time analyte sensors
Data variation and sensor fault information, the combined situation of such as Information abnormity meets alert if, then sends coal and gas prominent
Report to the police and fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from underground coal mine work
Industry personnel.
2. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；The methane concentration that coal-face return airway methane transducer is monitored increases rapidly or reaches alarming value 1.0%
CH4, when the wind speed that coal-face return airway air velocity transducer is monitored is not less than normal value, sends coal and gas prominent warning
With fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notify to withdraw from coal mine operation people
Member.
3. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；The methane concentration that exploiting field return airway methane transducer is monitored increases rapidly or reaches alarming value 1.0%CH4,
When the wind speed that exploiting field return airway air velocity transducer is monitored is not less than normal value, sends coal and gas prominent and report to the police and fail secure
Signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
4. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；The methane concentration that one wing return airway methane transducer is monitored increases rapidly or reaches alarming value 0.7%CH4,
When the wind speed that one wing return airway air velocity transducer is monitored is not less than normal value, sends coal and gas prominent and report to the police and fail secure
Signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
5. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；The methane concentration that main return airway methane transducer is monitored increases rapidly or reaches alarming value 0.7%CH4, always
When the wind speed that return airway air velocity transducer is monitored is not less than normal value, sends coal and gas prominent and report to the police and fail secure letter
Number, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
6. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches report
Alert value 1.0%CH4；The methane concentration that exploiting field return airway methane transducer is monitored increases rapidly or reaches alarming value 1.0%
CH4；The methane concentration that one wing return airway methane transducer is monitored increases rapidly or reaches alarming value 0.7%CH4；Main return airway
When the methane concentration that methane transducer is monitored increases rapidly or reach alarming value 0.7%CH4, coal and gas prominent warning is sent
With fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notify to withdraw from coal mine operation people
Member.
7. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is rapid
Increase or reach alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 1.0%CH4；When coal-face air intake lane wind transducer monitors wind current control, coal is sent
Report to the police with Gas Outburst and fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS) notifies to withdraw from
Coal mine underground operators.
8. coal-face methane transducer T1J failures are worked as, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches report
Alert value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring
Increase or reach alarming value 1.0%CH4 rapidly；When exploiting field air intake lane wind transducer monitors wind current control, send coal with watt
This is projected reports to the police and fail secure signal, and cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from colliery
Underground operators.
9. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
(1.0%CH4)；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches report
Alert value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring
Increase or reach alarming value 1.0%CH4 rapidly；When one wing air intake lane wind transducer monitors wind current control, send coal with watt
This is projected reports to the police and fail secure signal, and cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from colliery
Underground operators.
10. coal-face methane transducer failure is worked as, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is rapid
Increase or reach alarming value 0.5%CH4；The methane concentration that coal-face return airway methane transducer is monitored increase rapidly or
Reach alarming value 1.0%CH4；When total air intake lane wind transducer monitors wind current control, send coal and gas prominent report to the police and
Fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
11. work as coal-face methane transducer failure, or the methane concentration for monitoring increases rapidly or reach alarming value
(1.0%CH4)；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches report
Alert value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring
Increase or reach alarming value 1.0%CH4 rapidly；The first that coal-face air intake lane is monitored near methane transducer at point air port
When alkane concentration increases rapidly or reach alarming value 0.5%CH4, send coal and gas prominent and report to the police and fail secure signal, cut-out
Underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
12. work as coal-face methane transducer failure, or the methane concentration for monitoring increases rapidly or reach alarming value
1.0%CH4；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is rapid
Increase or reach alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 1.0%CH4；The methane concentration that exploiting field air intake lane methane transducer is monitored increases rapidly or reaches
During alarming value 0.5%CH4, send coal and gas prominent and report to the police and fail secure signal, cut-out underground coal mine whole non-intrinsically safe peace
Full electrical equipment power supply, notice withdraws from coal mine underground operators.
13. work as coal-face methane transducer failure, or the methane concentration for monitoring increases rapidly or reach alarming value
(1.0%CH4)；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches report
Alert value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring
Increase or reach alarming value 1.0%CH4 rapidly；The methane concentration that one wing air intake lane methane transducer is monitored increases rapidly or reaches
During to alarming value 0.5%CH4, send coal and gas prominent and report to the police and fail secure signal, cut-out 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 failures, or the methane concentration for monitoring increases rapidly or reaches alarming value
1.0%CH4；Coal-face upper corner methane transducer failure, or the methane concentration for monitoring increases rapidly or reaches warning
Value 1.0%CH4；Coal-face air intake lane methane transducer failure at work surface, or the methane concentration for monitoring is rapid
Increase or reach alarming value 0.5%CH4；Coal-face return airway methane transducer failure, or the methane concentration for monitoring is fast
Speed increases or reaches alarming value 1.0%CH4；The methane concentration that total air intake lane methane transducer is monitored increases rapidly or reaches report
During alert value 0.5%CH4, send coal and gas prominent and report to the police and fail secure signal, cut-out underground coal mine whole non-intrinsically safe safety
Electrical equipment power supply, notice withdraws from coal mine underground operators.
Description of the drawings
Fig. 1 underground monitoring system schematic diagrams.
Fig. 2 coal-face sensor mounting location schematic diagrams.
Specific embodiment
The alarm method need to gather each sensor signal by underground monitoring system, and by monitoring server data point are realized
Analysis, is included by underground monitoring system as shown in Figure 1：
1. monitoring server (1)；Be responsible for each sensor signal is acquired, is stored, and monitor methane concentration, wind direction,
The data variation and sensor fault of air velocity transducer, by analytical data change and fault message warning and fail secure are sent
Signal, cut-out 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 event of sensor by monitoring host computer
Barrier, can manually send warning and fail secure signal, and cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS) issues tune
Degree instruction notification withdraws from coal mine underground operators.And history monitoring data can be transferred from monitoring server.
3. guest machine (3) is monitored；When monitoring host computer breaks down, it is operated by monitoring guest machine.
4. the network switch (4)；It is responsible for management and the data exchange of all equipment for accessing mining Ethernet.
5. down-hole switch (5)；The access of responsible substation and data exchange.
6. substation (6)；The access of responsible sensor and data exchange.
7. methane transducer (7)；When methane concentration reaches warning concentration, alarm signal is sent；When methane concentration reaches
During power-off required concentration, relevant range power supply is cut off.
8. air velocity transducer (8)；When wind speed is abnormal, alarm signal is sent.
9. wind transducer (9)；When there is wind current control, alarm signal is sent.
T3, the coal mining at work surface in coal-face T1, coal-face upper corner T0, coal-face air intake lane
T2, coal-face air intake lane T4, exploiting field air intake lane T5, exploiting field return airway T6 at point air port in tailentry, one
Wing air intake lane T7, a wing return airway T8, total air intake lane T9, main return airway T10 these regional locations, place respectively gamut or height
Low dense methane transducer T1J, T0J, T3J, T2J, T4J, T5J, T6J, T7J, T8J, T9J, T10J；Wherein T8J and T10J reports to the police
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%.
In coal-face return airway T2, exploiting field return airway T6, these region positions of a wing return airway T8 and main return airway T10
Put, air velocity transducer T2S, T6S, T8S, T10S are placed respectively；
In coal-face air intake lane T3, exploiting field air intake lane T5, wing air intake lane T7, these region positions of total air intake lane T9
Put, wind transducer T3F, T5F, T7F, T9F are placed respectively.
Coal-face sensor set location is as shown in Fig. 2 specifically include：
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 position at work surface, methane transducer (205) T3J and wind transducer
(206)T3F。
5. coal-face air intake lane is close divides position at air port, methane transducer (207) T4J.
Monitoring server real time sensor data, when finding that certain methane transducer catastrophic failure or the methane that monitors are dense
Degree increases rapidly or reaches alarming value, then judge the methane transducer data exception；When certain wind transducer warning is found, then
Judge the wind transducer data exception；The air velocity transducer being not less than with reference to the wind speed for monitoring during normal value；According to
Following breakdown judge table judges whether to report to the police.
Claims (14)
1. a kind of coal-face coal and gas prominent alarm method, it is characterised in that：Underground coal mine, in coal-face, adopts
Coal face upper corner angle, coal-face air intake lane are at work surface, in coal-face return airway, coal-face air intake
Lane is at point air port, exploiting field air intake lane, 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；In coal-face return airway, exploiting field return airway, a wing return airway and total return air
Place air velocity transducer in lane；Place wind direction and pass in coal-face air intake lane, exploiting field air intake lane, a wing air intake lane, total air intake lane
Sensor；It is normal in related substation and power work, in the case of sensing station is arranged correctly, real-time monitoring methane concentration, wind
To, the data variation of air velocity transducer and sensor fault, data variation and the sensor fault information of real-time analyte sensors,
Combined situation such as Information abnormity meets alert if, then send coal and gas prominent and report to the police and fail secure signal, cuts off coal
Whole non-intrinsically safe secured electrical device power supply (DPS)s under mine, notice withdraws from coal mine underground operators.
2. alarm method as claimed in claim 1, it is characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；The first that coal-face return airway methane transducer is monitored
Alkane concentration increases rapidly or reaches alarming value 1.0%CH4, and the wind speed that coal-face return airway air velocity transducer is monitored is not low
When normal value, send coal and gas prominent and report to the police and fail secure signal, cut-out 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 characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face return airway methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；The methane that exploiting field return airway methane transducer is monitored is dense
Degree increases rapidly or reaches alarming value 1.0%CH4, and the wind speed that exploiting field return airway air velocity transducer is monitored is not less than normal value
When, send coal and gas prominent and report to the police and fail secure signal, cut-out 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 characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face return airway methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；The methane that one wing return airway methane transducer is monitored is dense
Degree increases rapidly or reaches alarming value 0.7%CH4, and the wind speed that a wing return airway air velocity transducer is monitored is not less than normal value
When, send coal and gas prominent and report to the police and fail secure signal, cut-out 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 characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face return airway methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；The methane concentration that main return airway methane transducer is monitored
Increase or reach alarming value 0.7%CH4 rapidly, when the wind speed that main return airway air velocity transducer is monitored is not less than normal value, send out
Go out coal and gas prominent to report to the police and fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS) is notified
Withdraw from coal mine underground operators.
6. alarm method as claimed in claim 1, it is characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face return airway methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face upper corner methane transducer failure, or
The methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；The methane that exploiting field return airway methane transducer is monitored
Concentration increases rapidly or reaches alarming value 1.0%CH4；The methane concentration that one wing return airway methane transducer is monitored increases rapidly
Or reach alarming value 0.7%CH4；The methane concentration that main return airway methane transducer is monitored increases rapidly or reaches alarming value
During 0.7%CH4, send coal and gas prominent and report to the police and fail secure signal, cut-out 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 characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane
Sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane wind
During to Sensor monitoring to 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, it is characterised in that：When coal-face methane transducer T1J failures, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face upper corner methane transducer failure, or
The methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface
Sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway first
Alkane sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；Exploiting field air intake lane wind direction is passed
When sensor monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut off underground coal mine all non-
Matter secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
9. alarm method as claimed in claim 1, it is characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane
Sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；One wing air intake lane wind direction is sensed
When device monitors wind current control, send coal and gas prominent and report to the police and fail secure signal, cut-out 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 characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane
Sensor monitoring to methane concentration increase or reach alarming value 1.0%CH4 rapidly；Total air intake lane wind transducer monitors wind
When stream is reversed, send coal and gas prominent and report to the police and fail secure signal, cut-out underground coal mine whole non-intrinsically safe secured electrical sets
Stand-by power source, notice withdraws from coal mine underground operators.
11. alarm methods as claimed in claim 1, it is characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane
Sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane is leaned on
When the methane concentration that methane transducer is monitored at nearly point air port increases rapidly or reaches alarming value 0.5%CH4, send coal and watt
This is projected reports to the police and fail secure signal, and cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from colliery
Underground operators.
12. alarm methods as claimed in claim 1, it is characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane
Sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；Exploiting field air intake lane methane sensing
When the methane concentration that device is monitored increases rapidly or reach alarming value 0.5%CH4, send coal and gas prominent warning and power-off is closed
Lock signal, cut-out 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 characterised in that：When coal-face methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or prison
The methane concentration for measuring increases rapidly or reaches alarming value 1.0%CH4；Coal-face air intake lane methane at work surface is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane
Sensor fault, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；One wing air intake lane methane is sensed
When the methane concentration that device is monitored increases rapidly or reach alarming value 0.5%CH4, send coal and gas prominent warning and power-off is closed
Lock signal, cut-out 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 characterised in that：Coal-face methane transducer failure, or monitor
Methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face upper corner methane transducer failure, or monitoring
To methane concentration increase or reach alarming value 1.0%CH4 rapidly；Coal-face air intake lane methane sensing at work surface
Device failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 0.5%CH4；Coal-face return airway methane is passed
Sensor failure, or the methane concentration for monitoring increases rapidly or reaches alarming value 1.0%CH4；Total air intake lane methane transducer prison
When the methane concentration for measuring increases rapidly or reach alarming value 0.5%CH4, send coal and gas prominent and report to the police and fail secure letter
Number, cut-out underground coal mine whole non-intrinsically safe secured electrical device power supply (DPS), notice withdraws from coal mine underground operators.
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| CN106703887B (en) * | 2016-11-24 | 2018-11-09 | 西安科技大学 | Secondary gas explosion determination method during mine heat power disaster assistance |
| CN107605536B (en) * | 2017-11-02 | 2019-04-16 | 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 |
| CN109026158A (en) * | 2018-09-25 | 2018-12-18 | 湖南科技大学 | Tunnel gas containing coal and ventilation condition remote real time monitoring device |
| CN109736892B (en) * | 2018-11-20 | 2020-08-11 | 山西宏安翔科技股份有限公司 | Mining wireless laser methane alarm system and method |
| CN110595525B (en) * | 2019-09-03 | 2020-12-15 | 精英数智科技股份有限公司 | Method, device, system and medium for monitoring abnormality of downhole sensor |
| CN110985129B (en) * | 2019-12-31 | 2021-06-01 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst catastrophe identification method for coal mining working face |
| CN111272954A (en) * | 2020-03-13 | 2020-06-12 | 光力科技股份有限公司 | Self-diagnosis method and device for sensor setting |
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