CN2797637Y - Full automatic gas prealarming and explosion-proof device used for coal mine - Google Patents
Full automatic gas prealarming and explosion-proof device used for coal mine Download PDFInfo
- Publication number
- CN2797637Y CN2797637Y CN 200520083847 CN200520083847U CN2797637Y CN 2797637 Y CN2797637 Y CN 2797637Y CN 200520083847 CN200520083847 CN 200520083847 CN 200520083847 U CN200520083847 U CN 200520083847U CN 2797637 Y CN2797637 Y CN 2797637Y
- Authority
- CN
- China
- Prior art keywords
- gas
- explosion
- coal mine
- alarm
- fire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Fire Alarms (AREA)
Abstract
The utility model provides a fully automatic gas pre-alarming and explosion-proof device used for a coal mine. A temperature alarm, a gas alarm, a monitor, a fire extinguisher, a main fire protection water pipe, a water spray pipe and a control cable are arranged in a main underground roadway and on a mining working surface, wherein the temperature alarm, the gas alarm, the monitor and the fire extinguisher are connected by the control cable, the control cable is connected with a ground monitoring computer for transmitting data, the main fire protection water pipe is connected with the water spray pipe via a magnetic-control valve, and the main fire protection water pipe is also connected with a ground high-pressure pump station. The gas pre-alarming and explosion-proof device used for a coal mine of the utility model having the characteristics of reasonable design, simple structure, high safety, convenient operation, easy maintenance, etc. is necessary safety production equipment for a coal mine, and personal casualty and property loss caused by coal mine accidents can be greatly reduced.
Description
1, technical field
The utility model relates to a kind of Safety of Coal Mine Production early warning prevention technique, the full-automatic early warning and explosion device of specifically a kind of coal mine gas.
2, background technology
The colliery of underground mining is because the restriction of condition of coal seam occurrence and mine working condition, has all that gas is outstanding, the disaster danger of gas explosion, coal-dust explosion.Gas is the general name that the down-hole can quick-fried flammable pernicious gas, and main component is a methane, claims biogas again.Gas is a kind of natural and the fuel gas coal symbiosis (as natural gas, coal bed gas), and coal in China department is referred to as coal-bed gas, promptly is stored in the natural gas in the subterranean coal.Gas is outstanding to be meant along with the increase of the coal mining degree of depth, the increase of gas bearing capacity, and burden is broken through in weak coal seam, a large amount of gas of abrupt release and coal bed gas and a kind of geological disaster of causing.The coal mining degree of depth is dark more, and the energy of gas abrupt release also can be big more.
Usually after a large amount of pernicious gas moment pours in, can form and suffocate, the accident of not necessarily can blasting.But, if after following three kinds of situations, will explosion caused accident.One, be that oxygen content reaches more than 12% in the air; Two, be that gas density reaches between the 5%-16%; The 3rd, run into naked light, firing temperature reaches more than 650 degrees centigrade.The concentration of gas is at 5.3% to 14% o'clock in the air, has under the situation of naked light just can blast, and only can burn greater than this concentration.This blast is analyzed theoretically, belongs to mist blast, it is to be mixed with suitable concentration by imflammable gas methane and combustion-supporting gas oxygen, because the combustion wave or the wave propagation of exploding cause.The HTHP that gas explosion produces, impel near the gas in quick-fried source outwards to impact, cause casualties, destroy tunnel and equipment facility with great speed, impact generated by explosion ripple a large amount of coal dusts of can kicking up make it to participate in blast and burning, produce bigger destructive power.In addition, explosive combustion not only exhausts airborne oxygen, also can produce a large amount of pernicious gases, and the personnel that cause poison, death by suffocation.
Newly-built and for many years downhole coal mine of exploitation, in the big lane and the negative of each haulage drift and all long-pending coal dust of expiring of wall, coal dust with suitable thickness attached on the wall.The situation that coal dust participates in gas explosion is continuous, and continues to the outside.Because mine ventilation system is to advance new wind by downcast, new wind is extracted out by upcast shaft through big lane and stope again.The new wind that is entered the down-hole by ventilating shaft is to move in face of the direction of gas explosion.Because airborne oxygen content is 21%, this oxygen content is obviously greater than the critical oxygenous amount of gas explosion 12%.Ventilate fully in other words, aggravated gas explosion after, the coal dust burning of being lighted, near the position of advancing new wind, burning Shaoxing opera row.So make whole big lane become the fire tube.The personnel of speedily carrying out rescue work can't be gone into the well speedily carry out rescue work, rescue.Gas, coal-dust explosion are to form key point heavy, especially big gas explosion accident.Speedily carry out rescue work, give first aid to the basic mechanism and the reason of difficulty after coal mine gas generation that Here it is, blast, the blast.
All multi-experts according to the All-China Federation of Trade Unions once participated in investigation work heavy several times, especially big gas explosion accident.According to their introduction, it is a global difficult problem that gas is given prominence in control gas technology, can't accomplish at present to take precautions against fully.Along with the continuous increase of the domestic coal mining degree of depth and gas density, gas is given prominence to and explosion accident has the situation that increases year by year.
Take place altogether from state-owned colliery in 2003 particularly serious, 44 of gas accidents, dead 520 people, severely injured number 47 people that once dead 3 people are above.Wherein: 31 of once dead 3～9 people's major accidents, dead 146 people, severely injured 19 people; 9 of once dead 10～29 people's serious accidents, dead 155 people, severely injured 13 people; Above special a lot of, dead 219 people of major accident of once dead 30 people, severely injured 15 people.Once dead 166 people's of taking place under the coal mine of Chen Jia mountain to the morning on the 1st December in 2004 spy, great gas explosion accident.And in the time of this last wheat harvesting period, two the especially big gas explosion accidents in the newborn colliery in big flat colliery, Henan and table mountain have caused 181 miners wrecked altogether, as can be seen the severe trend of gas explosion accident development.See the miserable condition that 15 o'clock on the 14th February, Liaoning Sun Jiawan gas explosion 203 people died in an accident in 2005 again.Annual heavy, especially big gas explosion accident straight line rises, and each death toll is multiplied.
Existing coal mine gas detects and explosion-proof emphasis improves gas-warning instrument precision.But the raising of monitoring instrument precision can play certain forewarning function in the local gas detection alarm, but the gas that reality is taken place outstanding with blast be powerless.The spy that will take place, great gas explosion are felt simply helpless especially, let alone speedily carrying out rescue work, giving first aid to after the gas explosion generation.
3, utility model content
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of full automatic coal mine gas prewarning explosion-protection equipment with warning function is provided.
The technical solution of the utility model realizes in the following manner, coal-face in the coal mine of underground mining, return airway, even angle on the work plane, coal-winning machine, the coal road of low gaseous mine, half rock gangway and the stone drifting work plane that has gas to gush out, the coal road of high bottle coal (rock) and gas projecting mine, half rock gangway and the stone drifting work plane that has gas to gush out, before the booster, development machine, inlet side at return electromechanical equipment chamber, in the main transportation lane of highly gassy mine air intake, coaling a little when using stringing electrical locomotive, gas is gushed out in tunnel following distinguished and admirable, air measuring station, the wind cave of ventilation fan etc. locates all to be provided with gas detecting alarm, temperature alarm controllable type fire extinguisher and controllable type dedusting cooling spray equipment.The control line of gas alarm, temperature alarm, controllable type fire extinguisher and controllable type dedusting cooling spray equipment is connected with mster-control centre, ground computer by cable and passes through the display screen display monitoring.The quiet dynamic concentration of the gas of all down-holes is by ground control centre computer monitoring record, and passes through screen display.If the somewhere gas of down-hole or temperature are about to overshoot numerical value, device can in time send warning and strengthen the down-hole when ventilating, and startup dedusting cooling spray equipment carries out the dedusting of long high-pressure spraying humidifying cooling to the getting working face of alarm point periphery with main transportation lane.If in a single day gas explosion take place in the somewhere of down-hole, demolition point and blast can process big lane in fire extinguisher can start immediately, explosion flash gas is contained.Owing to adopt regularly spray water dedusting cooling and the real-time dedusting spray cooling of temperature control humidification, eliminated the combustion-supporting of coal dust, therefore the explosion hazard of local gas can be reduced to minimum degree.Main tunnel can keep unblocked under the effect of high-pressure spraying and fire extinguisher simultaneously, for the personnel of speedily carrying out rescue work provide safe rescue and relief work passage, casualties and property loss is reduced to minimum.
The utility model has the advantages that:
(1) source of early warning of being made up of gas alarm, temperature alarm and monitor links to each other with mster-control centre, ground computer by data cable.Down-hole gas, temperature and personnel's situation everywhere is by the master control computer recording and pass through screen display, the redundant early warning of channeling.According to setting value instant alarm when transfinite in the somewhere, in prompting people hedging, down-hole water spray dedusting cooling is handled automatically, avoids gas explosion.Even generation gas explosion also can prevent a hot chain reaction, promptly the chain reaction after the gas explosion prevents to cause that coal dust participates in explosive combustion, makes the condition of a disaster be reduced to minimum level after the gas explosion.The personnel of speedily carrying out rescue work can't enter the passive situation of speedily carrying out rescue work in the scene after the use of automatic high pressure water injector can change gas explosion in the past.For entering site of the accident, the personnel of speedily carrying out rescue work open escape way.
(2) in case gas explosion takes place in the somewhere, fire extinguisher starts under the control of temperature alarm and puts out explosive source, and directly with coal-face and driving face covering, moment has the situation under control extinguishing chemical, avoids the condition of a disaster to spread.
(3) monitoring and early warning is carried out centralized management, and Based Intelligent Control thoroughly changes the drawback of using the portable gas explosion detector manually to lag behind with false drop, data error, report time-delay, the explosion precaution of machine testing.
(4) detection of ground central authorities master control room and down-hole, that monitor alarm equipment is formed comprehensive mine gas is explosion-proof, has improved the safe coefficient of mine production, has increased the workman's that goes into the well the sense of security.The multichannel redundancy is explosion-proof to provide reserve explosion-proof ability, has changed coal-dust explosion situation and the fear at a loss what to do that present people cause coal mine gas from explosion.
4, description of drawings
Accompanying drawing 1 is the structural representation with coal mine gas full-automatic explosion-proof device of warning function.
Mark in the accompanying drawing is represented respectively; Temperature alarm 1, gas alarm 2; Multimedia monitor 3; Fire extinguisher 4; Sparge pipe 5; Fire-fighting water main 6, control line 7; Magnetic control valve 8; Ground monitoring computer 9; High pressure pumping plant 10; Tunnel 11; Getting working face 12.
The specific embodiment
Below in conjunction with accompanying drawing the coal mine gas full-automatic explosion-proof device with warning function of the present utility model is done following detailed description the in detail.
As shown in drawings, full automatic coal mine gas prewarning explosion-protection equipment of the present utility model is that temperature alarm 1, gas alarm 2, multimedia monitor 3, fire extinguisher 4, fire-fighting water main 6, sparge pipe 5 and control cable 7 are set on the sidewall of main tunnel, down-hole and getting working face, temperature alarm 1, gas alarm 2, multimedia monitor 3 and fire extinguisher 4 by control line 7 be connected with ground monitoring computer 10 transmission data, fire-fighting water main 6 is connected with sparge pipe 5 by magnetic control valve 8, and fire-fighting water main 6 is connected with ground high pressure pumping plant 10.
The work of fire extinguisher 4 and sparge pipe 5 is subjected to the control or the Artificial Control of temperature alarm 1 and ground monitoring computer 9.
Fire extinguisher is electric-controlled type foam fire extinguishing system, electric-controlled type powder fire extinguisher, electric-controlled type dry chemical projectile, also can use naked light to ignite the formula dry chemical projectile.
As shown in the figure, fire extinguisher 4 and sparge pipe 5 adopt on main tunnel 11 and getting working face sidewall and are oppositely arranged or the top is provided with, its sprinkling fire-distinguishing coverage by whole spaces of getting working face 12 or gas detonation point begin flame whole spaces in tunnel 11 of energy process.
As shown in the figure, temperature alarm 1, gas alarm 2, multimedia monitor 3 can be arranged on the top or sidewall of tunnel 12, getting working face 12.
Multimedia monitor is used for the supervision safety in production at ordinary times, and live video is used to check the condition of a disaster when quick-fried, organize rescue and relief work, ensures aboveground downhole communication contact, and Video Document is used to investigate cause of accident afterwards, and the elimination accident potential and the accident of stopping take place.
Embodiment
As shown in drawings, temperature detection alarm and gas alarm are the knowledge of device, it by self temperature pick up and gas concentration sensor detect the down-hole air in the content and the environment temperature of gas, and the dynamic data of gas density and temperature is passed to the supervisory control comuter of face of land master control room by data cable, carry out data analysis and handle, gas, temperature, personnel activity's situation are presented on the giant-screen everywhere with the down-hole simultaneously.
No matter any reason any position open firing point, the gas explosion point that cause, as long as temperature surpasses more than 80 ℃, explosion-proof fire-extinguishing device moment starts automatically in the down-hole.The fire extinguisher adjacent with demolition point with open firing point starts successively under the control of supervisory control comuter and forms three-dimensional back-fire relief fire extinguishing barrier.
In case the down-hole has gas explosion accident to take place, supervisory control comuter also can start the high service pumping plant automatically, high-pressure sprayer moment in all main tunnels all opens, and vaporific spray is formed three-dimensional fire-fighting fire extinguishing back-fire relief barrier, guarantees the unimpeded of disaster relief and rescue personnel's safety and passage.
Employed temperature alarm, gas alarm, multimedia monitor, fire-fighting water main, sparge pipe and control cable and supervisory control comuter are mine common apparatus and universal communication equipment in the utility model device.Installation is a current techique, and construction shown in the by specification accompanying drawing gets final product.
Powder fire extinguisher adopts controllable type, so-called controlledly be meant that starting fire extinguisher moment when detecting burning things which may cause a fire disaster by temperature alarm sprays, the tunnel that the burning things which may cause a fire disaster that produces when gas explosion may pass through, supervisory control comuter start it automatically in advance by program and spray the prevention propagation of flame.Necessary thing can control by artificial auxiliary operation,
The effect of multimedia monitor is the real image that the downhole safety situation is provided for the ground monitoring computer, safety in production by monitor and each point of picket surveillance down-hole, and attach the intercommunication communication apparatus by monitor and in time prevent miner's operation against rules, cruelty to produce, abuse acts of violating regulations such as naked light, the surveillance video machine storage of recording as calculated also provides true strong foundation for accident generation " Invest, Then Investigate " cause of accident.The optional usefulness of monitor has the infrared night vision function, after in case accident takes place, remaining unchanged under the illuminating position condition of poor with the situation under the monitor well that does as usual, concrete destructiveness of grasp accident and scope, the personnel that get rid of the danger are provided by the valuable information that provides for the rescue and relief work personnel.
The full-automatic early warning and explosion device of coal mine gas of the present utility model is compared with existing technology, and has design and closes Reason, simple in structure, safe and reliable, easy to use, be easy to the characteristics such as maintenance, will be the indispensable safety in mine Production equipment is extensively promoted the use of, and can reduce significantly casualties and property loss that accident of mine disaster causes, Thereby, have good value for applications.
Claims (5)
1, full automatic coal mine gas prewarning explosion-protection equipment, it is characterized in that in main tunnel, down-hole and getting working face, being provided with temperature alarm, gas alarm, multimedia monitor, fire extinguisher, fire-fighting water main, sparge pipe and cable, temperature alarm, gas alarm, multimedia monitor and fire extinguisher are connected by the control cable, the control cable is connected the transmission data with the ground monitoring computer, the fire-fighting water main is connected with sparge pipe by the magnetic control valve, and the fire-fighting water main is connected with ground high pressure pumping plant.
2, full automatic coal mine gas prewarning explosion-protection equipment according to claim 1 is characterized in that fire extinguisher is that electric-controlled type foam fire extinguishing system, electric-controlled type powder fire extinguisher, electric-controlled type dry chemical projectile or naked light are ignited the formula dry chemical projectile.
3, full automatic coal mine gas prewarning explosion-protection equipment according to claim 1, the work that it is characterized in that fire extinguisher and sparge pipe is subjected to the control or the Artificial Control of temperature alarm and ground monitoring computer.
4, full automatic coal mine gas prewarning explosion-protection equipment according to claim 1, it is characterized in that fire extinguisher and sparge pipe adopt the subregion multiple spot to be oppositely arranged on the sidewall of main tunnel, its sprinkling fire-distinguishing coverage by whole spaces of getting working face or gas detonation point begin flame whole spaces in tunnel of energy process.
5, full automatic coal mine gas prewarning explosion-protection equipment according to claim 1 is characterized in that temperature alarm, gas alarm, multimedia monitor subregion multiple spot are arranged on the top or sidewall of tunnel, getting working face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083847 CN2797637Y (en) | 2005-06-06 | 2005-06-06 | Full automatic gas prealarming and explosion-proof device used for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083847 CN2797637Y (en) | 2005-06-06 | 2005-06-06 | Full automatic gas prealarming and explosion-proof device used for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797637Y true CN2797637Y (en) | 2006-07-19 |
Family
ID=36868877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520083847 Expired - Lifetime CN2797637Y (en) | 2005-06-06 | 2005-06-06 | Full automatic gas prealarming and explosion-proof device used for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797637Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287232A (en) * | 2011-07-13 | 2011-12-21 | 中煤科工集团重庆研究院 | Method for judging mechanism of inducing secondary fire by gas explosion of coal mine |
| CN101806228B (en) * | 2010-02-01 | 2012-07-25 | 南京紫淮矿用电子高科技有限公司 | Coal bed gas radio frequency spectrum direction finding early warning system |
| WO2014110893A1 (en) * | 2013-01-18 | 2014-07-24 | Liu Hongguang | Gas explosion suppression system and method for coal mine |
| CN109268057A (en) * | 2018-11-28 | 2019-01-25 | 华北科技学院 | A kind of Automatic Control coal mine work area fire extinguishing explosion-protection equipment |
| CN109751086A (en) * | 2019-03-08 | 2019-05-14 | 李静娴 | A kind of mining area safety monitoring system |
-
2005
- 2005-06-06 CN CN 200520083847 patent/CN2797637Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806228B (en) * | 2010-02-01 | 2012-07-25 | 南京紫淮矿用电子高科技有限公司 | Coal bed gas radio frequency spectrum direction finding early warning system |
| CN102287232A (en) * | 2011-07-13 | 2011-12-21 | 中煤科工集团重庆研究院 | Method for judging mechanism of inducing secondary fire by gas explosion of coal mine |
| WO2014110893A1 (en) * | 2013-01-18 | 2014-07-24 | Liu Hongguang | Gas explosion suppression system and method for coal mine |
| CN109268057A (en) * | 2018-11-28 | 2019-01-25 | 华北科技学院 | A kind of Automatic Control coal mine work area fire extinguishing explosion-protection equipment |
| CN109751086A (en) * | 2019-03-08 | 2019-05-14 | 李静娴 | A kind of mining area safety monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1693675B (en) | Full automatic coal mine gas prewarning explosion-proof system | |
| Ray et al. | Recent developments and practices to control fire in undergound coal mines | |
| CN2797637Y (en) | Full automatic gas prealarming and explosion-proof device used for coal mine | |
| CN109448488B (en) | Virtual simulation and emergency escape training method and system for mine external fire accident | |
| RU2400633C1 (en) | System for confinement and suppression of methane-air mixtures and/or coal dust explosions in mines network | |
| Brake | Fire modelling in underground mines using Ventsim Visual VentFIRE Software | |
| CN111425245A (en) | Coal and gas symbiotic disaster prevention and control method based on goaf air leakage field optimization | |
| CN211008732U (en) | Device for preventing spontaneous combustion of goaf in coal mine | |
| CN205387929U (en) | High -gas coal mine gas drainage system | |
| Sahu et al. | Coal mine explosions in India: Management failure, safety lapses and mitigative measures | |
| CN101737048A (en) | Remote control monitoring coal mining method | |
| RU74962U1 (en) | SYSTEM OF AUTOMATIC CONTROL OF THE STATE OF THE ATMOSPHERE AND LOCALIZATION OF EXPLOSIONS AND FIRE IN MINING | |
| CN112943349B (en) | Comprehensive management construction method for gas in high-gas tunnel | |
| CN109838280A (en) | A kind of coal mine gas prewarning processing system | |
| CN102877883B (en) | Security total station | |
| CN208122889U (en) | A kind of driving face coal and gas prominent emergency system | |
| McPherson et al. | Subsurface fires and explosions | |
| CN218046254U (en) | Fire detection, prevention and control system for underground belt transportation roadway | |
| Goertz | Recommendations for the Prevention and Supression of Coal Dust Explosions at Underground Coal Mines in the United States | |
| Goertz et al. | Identifying improved control practices and regulations to prevent methane and coal dust explosions in the United States | |
| CN203257468U (en) | Underground coal mine water permeation monitoring and early warning device | |
| CN209605172U (en) | Associated gas is vented combustion monitoring and controls torch | |
| Mei | A rapid dual-drive technology for extinguishing large high-gas coal mines fires | |
| CN202417596U (en) | Robot for monitoring coal mine underground fire | |
| Brune et al. | Explosion prevention in United States coal mines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150606 Granted publication date: 20060719 |