CN207989066U - High efficiency fire extinguishing system suitable for high methane coal mine well shaft - Google Patents
High efficiency fire extinguishing system suitable for high methane coal mine well shaft Download PDFInfo
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- CN207989066U CN207989066U CN201820366530.1U CN201820366530U CN207989066U CN 207989066 U CN207989066 U CN 207989066U CN 201820366530 U CN201820366530 U CN 201820366530U CN 207989066 U CN207989066 U CN 207989066U
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- carbon dioxide
- oxygen concentration
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Abstract
The utility model discloses a kind of high efficiency fire extinguishing systems suitable for high methane coal mine well shaft, it is related to pitshaft fire extinguishing field, includes CO2 extinguishment system in pit shaft, pit shaft intake volume control system, underground pernicious gas processing system and mine on-line monitoring system.The utility model is in the case where keeping the normal ventilation mode of highly gassy mine; utilize the combination of CO2 extinguishment system, gas drainage system and mine on-line monitoring system in pit shaft; in pitshaft and shaft bottom ingate fire is realized and quickly, is effectively put out a fire, effective protection highly gassy mine underground employee's person and mine property safety.
Description
Technical field
The utility model is related to pitshaft fire extinguishing fields, specifically a kind of height suitable for high methane coal mine well shaft
Imitate fire extinguishing system.
Background technology
From the point of view of the whole nation, pitshaft fire have coverage is big, number of going through dangers is more, caused by safety consequences and property
It loses the features such as huge, therefore is directed to the emphasis in high methane coal mine well shaft with shaft bottom ingate fire management still to prevent fires in advance
Based on calamity.For having there is the fire of open fire with shaft bottom ingate in high methane coal mine well shaft, due to being pacified by back lass
Wind speed is big, fire spread is rapid, operation field fire distinguisher is limited greatly, in pit shaft for full blast danger, fire extinguishing narrow space, mine shaft depth
Big and existing extinguishing method, tool are difficult the restriction that the effectively factors such as fire extinguishing are carried out to fire area, therefore, highly gassy mine well
Safety consequences in cylinder and after shaft bottom ingate generation fire are often catastrophic, these are in all previous well of highly gassy mine
It is verified in cylinder fire incident.
For high methane coal mine well shaft fire, even if after taking back lass measure, since inverted ventilation air quantity is only just
Air quantity 50% or so during normal open wind, gas density is higher by 1 times or more than gas density in normal return in inverted ventilation return,
Return containing high concentration gas passes through pit shaft ignition point, and gas explosion occurs or detonation probability greatly increases, or even can make
People is ruined at mine to die, security risk is very big.During fire, such as keep mine normally divulge information, pernicious gas can along distinguished and admirable rapid sprawling,
The disaster-stricken range personnel probability being rescued of escaping danger is almost nil.Fire cannot such as control in time, and fire heating air pressure can cause underground distinguished and admirable
It reverses, greatly increases the probability that gas explosion or detonation occur for underground.Therefore, high methane coal mine well shaft endogenous fire calamity is not often because can
It takes back lass means and fire extinguishing means deficient, causes fire extinguishing not in time, great damage is brought to employee's life and business property
It loses.
Invention content
To solve above-mentioned technical problem, the utility model provides a kind of height suitable for high methane coal mine well shaft
Effect fire extinguishing system utilizes CO2 extinguishment system, gas drainage under suction in pit shaft in the case where keeping the normal ventilation mode of highly gassy mine
The combination of system and mine on-line monitoring system realizes in pitshaft and shaft bottom ingate fire and quickly, effectively puts out a fire, has
Effect protection highly gassy mine underground employee's person and mine property safety.
In order to achieve the above objectives, technical solution used by the utility model is：
A kind of high efficiency fire extinguishing system suitable for high methane coal mine well shaft, which is characterized in that include titanium dioxide in pit shaft
Carbon fire extinguishing system, pit shaft intake volume control system, underground pernicious gas processing system and mine on-line monitoring system,
In the pit shaft CO2 extinguishment system include be set to the attached subaerial carbon dioxide storage station of mine and
Several annular carbon dioxide vents, on shaft in wall from top to bottom at the ingate of shaft bottom at interval of certain distance setting one
A annular carbon dioxide vent, several annular carbon dioxide vents are connected in parallel with carbon dioxide storage station, if
Set independent control switch；
The pit shaft intake volume control system includes several Boiler pressure control air doors, and the Boiler pressure control air door is set to
On shaft station and the tunnel of downcast shaft bottom unicom, for controlling the air quantity of each air inlet well shaft；
The underground pernicious gas processing system includes pernicious gas evacuation system and aeration system, and the pernicious gas is taken out
Heat-extraction system includes Taked gas out process and the extraction pipeline that is attached thereto, and the extraction pipeline is connected to each Boiler pressure control air door and leans on
Toxic and harmful gas is extracted out using Taked gas out process and is discharged in pit shaft during fire by the side of nearly pit shaft, the aeration system
Include oxygen storage station and oxygen concentration sensor two, the oxygen storage station and oxygen concentration sensor two are set to main shaft
Within the scope of other than auxiliary shaft intake airflow meet 10 meters, the oxygen concentration sensor two detects that the distinguished and admirable middle oxygen of mixing is dense
When degree is less than 20%, the gas cylinder at oxygen storage station is opened, to the distinguished and admirable middle supplemental oxygen of mixing；
Oxygen concentration sensor is set in pit shaft between each two annular carbon dioxide vent and at the ingate of shaft bottom
One, several oxygen concentration sensors one, several Boiler pressure control air doors, several annular carbon dioxide vents,
Oxygen concentration sensor two is connect with mine on-line monitoring system, passes through the behaviour of each interface unit of monitoring data remote control
Make.
The pernicious gas evacuation system is set as the special drainage system in ground gas extraction station or underground, the underground
Gas is directly discharged to goaf air return lane or main return airway by special drainage system.
The utility model elaborates a kind of fire extinguishing system suitable for high methane coal mine well shaft, be suitable for tool there are two and with
The highly gassy mine of enterprising air shaft can pass through another or several air inlets during fire occurs for single air inlet well shaft
Well shaft keeps the normal air feed of mine, and guarantee is each to substantially meet requirement with wind place air quantity, specific to have following significant technology
Effect：
1）CO2 extinguishment system, intake volume control system, pernicious gas processing system are established in underground, in conjunction with mine
Well on-line monitoring system, by each system monitoring component and execution unit connect with mine on-line monitoring system, utilize ground
Face remote control program carries out remote control operation after receiving monitoring data to underground execution unit, is not necessarily to operating personnel
It is safe operation, quick into flame range and disaster area, casualties is not present, there is no fire extinguishing blind areas；
2）Several Boiler pressure control air doors are set on the tunnel that shaft bottom parking lot is connected to downcast shaft bottom, utilize mine well
The intake of downcast during cylinder control wind technical controlling fire, using intake airflow as carrier, by spreading all over pit shaft and shaft bottom head of the horse
Hypoxic air containing great amount of carbon dioxide is sent to ignition point by the CO2 extinguishment system at door, reaches the effect of isolation fire extinguishing
Fruit；
3）Harmful gas handling system is formed by pernicious gas drainage system and aeration system, greatly reduces and is mixed into newly
It is fresh it is distinguished and admirable in pernicious gas total amount, increase mix it is distinguished and admirable in oxygen content, it is ensured that the distinguished and admirable middle pernicious gas in underground does not surpass
Limit, oxygen concentration meet the requirements, and avoid high methane security risk caused by back lass, have reached i.e. guarantee mine ventilation
Safety and quick, high-effect fire-extinguishing purpose, have been effectively ensured the safety of personnel and property in high methane coal mine well shaft fire, have fitted
Close large-scale promotion application.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is ventilating system schematic diagram before catastrophe；
Fig. 3 is catastrophe rear venting system schematic.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments：
As shown in Figs. 1-3, should include carbon dioxide in pit shaft suitable for the high efficiency fire extinguishing system of high methane coal mine well shaft
Fire extinguishing system, pit shaft intake volume control system, underground pernicious gas processing system and mine on-line monitoring system.
CO2 extinguishment system includes to be set to the attached subaerial carbon dioxide storage station of mine 1 in the pit shaft
With several annular carbon dioxide vents 11, from top to bottom to being set at interval of certain distance at the ingate of shaft bottom on shaft in wall
Set an annular carbon dioxide vent 11, several annular carbon dioxide vents 11 with carbon dioxide storage station 1 simultaneously
Connection connection, setting independent control switch.
The pit shaft intake volume control system includes several Boiler pressure control air doors 2, and the Boiler pressure control air door 2 is arranged
In on the tunnel of shaft station and downcast shaft bottom unicom, for controlling the air quantity of each air inlet well shaft.
The underground pernicious gas processing system includes pernicious gas evacuation system and aeration system, and the pernicious gas is taken out
Heat-extraction system includes Taked gas out process 7 and the extraction pipeline 6 that is attached thereto, and the extraction pipeline 6 is connected to each Boiler pressure control wind
Toxic and harmful gas is extracted out using Taked gas out process and is discharged close to during fire in the side of pit shaft, pit shaft by door 2, the increasing
Oxygen system includes oxygen storage station 3 and oxygen concentration sensor 24, the oxygen storage station 3 and oxygen concentration sensor 24
It is set to other than main shaft and auxiliary shaft intake airflow meet within the scope of 10 meters, the oxygen concentration sensor 24 detects mixing
When distinguished and admirable middle oxygen concentration is less than 20%, the gas cylinder at oxygen storage station is opened, to the distinguished and admirable middle supplemental oxygen of mixing.
Oxygen concentration is arranged in pit shaft between each two annular carbon dioxide vent 11 and at the ingate of shaft bottom to sense
Device 1, several oxygen concentration sensors 1, several Boiler pressure control air doors 2, several annular carbon dioxide go out
Gas port 11, oxygen concentration sensor 24 are connect with mine on-line monitoring system, pass through each connector of monitoring data remote control
The operation of part.
As preferred mode, the pernicious gas evacuation system is set as the special pumping in ground gas extraction station or underground
Gas is directly discharged to goaf air return lane or main return airway by place system, the special drainage system in underground.
Illustrate the structure and application of the utility model below by a specific embodiment.
As shown in Figure 1, establishing the CO2 extinguishment system in pit shaft.The density of carbon dioxide is 1.977g/L, is more than
The density 1.293g/L of air, so carbon dioxide is the primary raw material that coal mine administers that breeding fire uses.It is attached in pitshaft
It is near the ground to establish carbon dioxide storage station 1, an annular carbon dioxide vents 11 are set in pit shaft every 100 meters, every two
The each annular dioxy of oxygen concentration sensor 2 5. is set between a annular carbon dioxide vent 11 and at the ingate of shaft bottom
Change carbon gas outlet 11 to be connected in parallel with carbon dioxide storage station 1, individually control switch be set, can individually control open or
It closes.
As shown in Figures 2 and 3, pit shaft air quantity control system is established.Tunnel in shaft station and downcast shaft bottom unicom
It is respectively provided with Boiler pressure control air door 2, the air quantity for controlling each air inlet well shaft during well industrial and mineral well catastrophe.
Pernicious gas processing system is established, pernicious gas drainage system and aeration system are divided into.Noxious gas emission system
Ground Taked gas out process 7 is mainly set, extraction pipeline 6 is connected to each Boiler pressure control air door 2 close to the side of pit shaft, is put down
When each line portals be closed, during downcast is in fire, the valve of each gas drainage under suction main line under closed-in well, and root
According to the valve for needing extraction pipeline needed for opening, toxic, pernicious gas is evacuated to ground using ground gas drainage system and is discharged,
Reduce the toxic and harmful gas entered in mine.Also the special drainage system in underground can be established, but pernicious gas must directly be arranged
It puts into exploiting field air return lane or main return airway, pernicious gas evacuation system processing air quantity cannot be less than 150m3/min.The oxygenation
System, the built-in oxygen storage station 3 of 10 meters of ranges other than main shaft and auxiliary shaft intake airflow meet, when oxygen concentration sensor one
4 detect mixing distinguished and admirable middle oxygen concentration when being less than 20%, open the gas cylinder of oxygen storage sites 3, to mixing distinguished and admirable middle delivery of supplemental oxygen
Gas.
By taking fire of acting in an unreasonable way at below highly gassy mine auxiliary well head 350 meters as an example, monitored by mine on-line monitoring system
It to after fire, is put out a fire by remote control operation, top-down 4 annular dioxies is opened according to the position of ignition point first
Change the valve of carbon gas outlet 11（11 spacing of each two annular carbon dioxide vent is 100 meters）, it is then shut off and auxiliary shaft
The Boiler pressure control air door of unicom controls the intake volume of auxiliary shaft to little such as the Boiler pressure control air door 20 and 21 in Fig. 2
In 150m3/ min, main shaft undertake mine and always enter the wind task as main downcast.Pass through ground carbon dioxide storage station 1 and pit shaft
Interior annular carbon dioxide vent 11 persistently injects great amount of carbon dioxide into auxiliary shaft, utilizes shaft bottom ingate and pit shaft
Interior oxygen concentration sensor 1 adjusts carbon dioxide flow to monitor oxygen concentration by monitoring data, makes in pit shaft
Fire puts the oxygen concentration in above air and is rapidly decreased to 10% hereinafter, when hypoxic air passes through ignition point, and ignition point will be because
Suffocate extinguishing for anoxic, achievees the purpose that isolation fire extinguishing.
When highly gassy mine auxiliary well head occur fire when, using mine control wind technology carry out pit shaft quickly, efficiently go out
While fiery, gas exhaust system is opened immediately, and pump drainage is carried out to the pernicious gas closed within the scope of Boiler pressure control air door, is passed through
Gas exhaust pipeline 6 is emitted into ground（Or main return airway）, and by mounted on the oxygen concentration sensor mixed in distinguished and admirable place
Oxygen concentration during 24 monitoring mixing are distinguished and admirable, the oxygen increment of aeration system is adjusted according to the oxygen concentration data of monitoring, to
Mix distinguished and admirable middle supplemental oxygen, it is ensured that the distinguished and admirable middle oxygen concentration of mixing is not less than 20%.
In conclusion the utility model is suitable for the fire fire extinguishing of each position in high methane pit shaft, it is with intake airflow
Carrier enables hypoxic air all to cover the air inlet well shaft of catastrophe, and there is no fire extinguishing blind areas；Carry out extinguishing operation in pit shaft
When, fire-extinguishing operations personnel do not enter flame range and disaster area, and operation is more safely, quickly；Suitable for tool, there are two enter the wind well shaft
Highly gassy mine, it is single to enter the wind during fire occurs for well shaft, mine can be maintained normal by another air inlet well shaft
Air feed, guarantee is each to substantially meet requirement with wind place air quantity, it is ensured that the distinguished and admirable middle pernicious gas in underground does not transfinite, oxygen concentration meets
It is required that avoiding high methane security risk caused by back lass, reaches and ensured mining ventilation and safety again quickly, efficiently
The purpose of fire extinguishing.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, are also answered
Belong to the scope of protection of the utility model.
Claims (2)
1. a kind of high efficiency fire extinguishing system suitable for high methane coal mine well shaft, which is characterized in that include carbon dioxide in pit shaft
Fire extinguishing system, pit shaft intake volume control system, underground pernicious gas processing system and mine on-line monitoring system,
CO2 extinguishment system includes to be set to the attached subaerial carbon dioxide storage station of mine in the pit shaft（1）If with
Dry annular carbon dioxide vent（11）, it is arranged from top to bottom at the ingate of shaft bottom at interval of certain distance on shaft in wall
One annular carbon dioxide vent（11）, several annular carbon dioxide vents（11）With carbon dioxide storage station
（1）It is connected in parallel, setting independent control switchs；
The pit shaft intake volume control system includes several Boiler pressure control air doors（2）, the Boiler pressure control air door（2）Setting
In on the tunnel of shaft station and downcast shaft bottom unicom, for controlling the air quantity of each air inlet well shaft；
The underground pernicious gas processing system includes pernicious gas evacuation system and aeration system, pernicious gas pump drainage system
System includes Taked gas out process（7）With the extraction pipeline being attached thereto（6）, the extraction pipeline（6）It is connected to each Boiler pressure control
Air door（2）Close to during fire in the side of pit shaft, pit shaft, Taked gas out process is utilized（7）Toxic and harmful gas is extracted out and is discharged,
The aeration system includes oxygen storage station（3）With oxygen concentration sensor two（4）, the oxygen storage station（3）And oxygen
Concentration sensor two（4）It is set to other than main shaft and auxiliary shaft intake airflow meet within the scope of 10 meters, the oxygen concentration sensing
Device two（4）When detecting that the distinguished and admirable middle oxygen concentration of mixing is less than 20%, the gas cylinder at oxygen storage station is opened, to the distinguished and admirable middle benefit of mixing
It is oxygenated；Each two annular carbon dioxide vent in pit shaft（11）Between and shaft bottom ingate at setting oxygen concentration sense
Device one（5）, several oxygen concentration sensors one（5）, several Boiler pressure control air doors（2）, several annular dioxies
Change carbon gas outlet（11）, oxygen concentration sensor two（4）It connect with mine on-line monitoring system, is remotely controlled by monitoring data
Make the operation of each interface unit.
2. the high efficiency fire extinguishing system according to claim 1 suitable for high methane coal mine well shaft, which is characterized in that described to have
Evil gas evacuation system is set as the special drainage system in ground gas extraction station or underground, and the special drainage system in underground will
Gas is directly discharged to goaf air return lane or main return airway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366530.1U CN207989066U (en) | 2018-03-19 | 2018-03-19 | High efficiency fire extinguishing system suitable for high methane coal mine well shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366530.1U CN207989066U (en) | 2018-03-19 | 2018-03-19 | High efficiency fire extinguishing system suitable for high methane coal mine well shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989066U true CN207989066U (en) | 2018-10-19 |
Family
ID=63827237
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820366530.1U Expired - Fee Related CN207989066U (en) | 2018-03-19 | 2018-03-19 | High efficiency fire extinguishing system suitable for high methane coal mine well shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989066U (en) |
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2018
- 2018-03-19 CN CN201820366530.1U patent/CN207989066U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20210319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |