CN102606189A - Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field - Google Patents
Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field Download PDFInfo
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- CN102606189A CN102606189A CN2012100986261A CN201210098626A CN102606189A CN 102606189 A CN102606189 A CN 102606189A CN 2012100986261 A CN2012100986261 A CN 2012100986261A CN 201210098626 A CN201210098626 A CN 201210098626A CN 102606189 A CN102606189 A CN 102606189A
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Abstract
A fire extinguishing and cooling system for coal cavities and loose areas in a fire district of a coal field comprises a water inlet pipe, a liquid storage tank, a proportioning mixer, a foam generator, a water mist generator, a flow divider, a fire extinguishing agent filling device for ground drilling and an air compressor. After stopping agent or foaming agent in the liquid storage tank and water are quantitatively mixed by the proportioning mixer, the mixture and air provided by the air compressor are mixed in the water mist generator or the foam generator to form flame-retardant water mist or foam, and the flame-retardant mist or the foam is divided to the fire extinguishing agent filling device for ground drilling via the flow divider, the flame-retardant water mist is filled in the coal cavities in the fire district of the coal field, and the foam is filled in the coal loose areas in the fire district of the coal field, so that fire extinguishing and cooling effects are realized. By the aid of the system, the water can be converted into the flame-retardant water mist or the foam, contact areas of the water and the coal cavities and the coal loose areas in the fire district of the coal field are increased, management speed is increased, any external power sources are omitted, and the fire extinguishing and cooling system is simple in operation and convenient and speedy in detachment and movement, and has wide practicality in terms of management of fire districts of coal fields.
Description
Technical field
The present invention relates to coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, a kind of coalfield, be particularly useful for the quick extinguishing cooling of the coal fire of cavity, coalfield district and ravel area.
Background technology
Coal is one of main energy sources of China's economic development, in primary energy production and consumption structure, accounts for about 70%.Coal resources in China mainly is distributed in northwest and North China, and wherein six provinces and regions such as Xinjiang, Inner Mongol, Shanxi, Shaanxi, Ningxia, Gansu are verified coal reserves and accounted for the whole nation about 80%.Yet there is a large amount of fire districts, coalfield in these zones at present, reaches 9,920,000 m like fire district, present coalfield, Xinjiang area
2, existing coalfield, Ningxia fire district 394.56 ten thousand m
2Deng.The coalfield fire not only burns a large amount of coal resources, also causes tens of times dull resource not exploit simultaneously indirectly.In addition, the coalfield fire also causes soil desertification, dead, the surface collapse of vegetation, a large amount of CO, CO
2Enter in the atmosphere heavy damage environment Deng toxic and harmful.The improvement in fire district, coalfield has received the extensive concern of society.
The improvement in coalfield fire district is at present mainly taked to come fire extinguishing cooling through warm oneself in front of a fire district's priming petock, slurry of the face of land or boring.This method can effectively be eliminated the high-temperature region that contacts with water slurry in the fire district, coalfield; But because the high-temperature region of coalfield fire is distributed in the cavity and the loose region of coal petrography more; These regional spaces are big, the space is many, coal petrography is broken, fissured structure is abundant, and the goaf that produces behind the many and previous seam mining is linked up; The water slurry that injects can be very soon in the high-temperature region fixing coal petrography crack channel flow to the low-lying place or the goaf of UNICOM with it; Make water slurry limited with the contact surface in fire district in the governance process of kindling rock cavity, coalfield and ravel area; Can not form effectively the high-temperature region (particularly to these regional high-temperature regions, middle and upper part) of the coal petrography in fire district cavity and loose region and cover, it is low to cause a large amount of water slurrys not have effect and loss in vain, a governance efficiency of absorbing and cooling temperature.In addition; Coalfield fire district compare with general underground coal spontaneous combustion burning area big, have a very wide distribution; It is many that boring is administered in construction in the governance process; Need frequent conversion fill orifice and administer the zone, and mostly the anti-extinguishing device of conventional water filling, slip casting and induction system thereof are that the welding iron pipe flange of fixing connects, and removes and installs complicacy, wastes time and energy; In addition, China's coalfield fire is distributed in mountain area and meagrely-populated field more, and these area electrodes are inconvenient; These have all restricted effectively administering fast of fire district, coalfield.For reducing the loss of water slurry in fire district, the coalfield governance process, will administer with water atomization or foaming, inject thin water smoke in the high-temperature region in coal fire cavity district respectively; At ravel area perfusion foam; Utilize the strong diffusion property of the thin water smoke in atomizing back and the high fill characteristic of foaming back foam, can significantly increase the contact surface of water slurry and coal petrography high-temperature region, make full use of the absorbing and cooling temperature advantage of water; Improving the governance efficiency in fire district, coalfield, will be a kind of effective improvement method.But at present thin water smoke and foam are not also carried out application in fire district in coalfield administers, more do not have supporting governing system.
Summary of the invention
Technical problem: the objective of the invention is to overcome deficiency of the prior art, provide a kind of simple in structure, remove and install coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, easy, time saving and energy saving, effective coalfield.
Technical scheme: coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, coalfield of the present invention; Comprise water inlet pipe, proportioner, fluid reservoir, foam maker, fine water fog generator, ground drilling fire extinguishing medium irrigation device and air compressor machine; The entrance pipe of said proportioner is provided with water inlet pipe control valve and I pressure meter, and the tank connected pipette of proportioner and liquid storage is provided with the I flap valve; The inlet tube of said water inlet pipe control valve and the outlet of proportioner are provided with bypass pipe, and bypass pipe is provided with control valve; Proportioner is connected with the inlet tube of foam maker and fine water fog generator with the outlet of bypass pipe; Foam maker and fine water fog generator parallel connection; The feed liquor pipeline of foam maker is provided with I gate valve and II pressure meter; The air inlet port pipeline of foam maker links to each other with the air inlet port pipeline of fine water fog generator, is connected with air compressor machine through air inlet pipe on the pipeline that links to each other; Be provided with II flap valve, IV pressure meter and I gas control valve on the air inlet port pipeline of foam maker successively, the export pipeline of foam maker is provided with the III gate valve; The inlet pipeline of fine water fog generator is provided with II gate valve and III pressure meter, is provided with III flap valve, V pressure meter and II gas control valve on the air inlet port pipeline of fine water fog generator successively, and the export pipeline of fine water fog generator is provided with the IV gate valve; The outlet of foam maker and fine water fog generator converges through the high pressure resistant flexible pipe of flexibility and is connected with current divider; The import department of current divider is provided with peep hole; Peep hole is provided with ball valve; The export pipeline of current divider is provided with the flexible high pressure resistant flexible pipe that links to each other with the ground drilling fire extinguishing medium irrigation device, is provided with V gate valve, safety relief valve and VI pressure meter on the flexible high pressure resistant flexible pipe successively.
Described current divider is the big fan-shaped cambered surface cavity structure of the little outlet of import, is furnished with 2-6 outlet on the fan-shaped cambered surface; Described air compressor machine is the diesel compressor through the transportation of rubber tire means of transportation; The high pressure resistant pipe of described flexibility is provided with snap joint or jointing clip.
Beneficial effect: coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, coalfield of the present invention are applicable to the quick extinguishing cooling of fire coal petrography cavity, district, coalfield and loose region high-temperature region.The passing ratio blender quantitatively adds to resistance liquid in the fluid reservoir or blowing agent in the inlet pipeline; The mixed liquor that forms with improvement water in the water inlet pipe mixes with gas that air compressor machine provides in fine water fog generator or foam maker, and mixed liquor is become fire-retardant thin water smoke or foam; Branch to the ground drilling fire extinguishing medium irrigation device through current divider again, fire-retardant thin water smoke or foam are delivered to the high-temperature region of coal petrography cavity district and ravel area in the fire district, coalfield respectively; Utilize thin water smoke dispersivity diffusion good and foam the characteristics good with accumulation property; Inject each position that water smoke behind the empty high-temperature region can diffuse to whole empty high-temperature region very soon; The foam that injects the ravel area high-temperature region can effectively spread accumulation in ravel area; Thereby will administer water taken to before the inaccessiable high-temperature region of water in the conventional waterflooding governance process, having solved that water filling administers can not be empty to coal petrography in the coalfield fire district and the high-temperature region of loose region, particularly these regional high-temperature regions, middle and upper part are formed the difficult point of effective covering, has significantly increased the contact surface of water and high-temperature region; Reduce the loss of water, improved regulation effect and progress.Simultaneously; The improvement water is atomized and the back flow that foams significantly increases; The fire-retardant thin water smoke of big flow adopts current divider can be delivered to a plurality of improvement borings simultaneously with the mode of movement that the flexible high pressure resistant flexible pipe that is connected with snap joint or clip mode combines with foam; Reach multizone and administer simultaneously, and conventional quick detachable, good the moving of fixed filling system that connects with welding iron pipe flange.In addition, system adopts rubber tire transportation formula diesel compressor air feed, does not only need extraneous power supply in the air feed process, and the rubber tire means of transportation also makes whole system transportation use more convenient.Can significantly improve the fiery cooling rate of distinguishing coal petrography cavity and ravel area of utilization rate and coalfield of administering water, whole system need not any extraneous power supply.It is simple in structure, it is easy, time saving and energy saving to remove and install, convenient disassembly, move conveniently, easy to operate, safe and reliable, in coalfield fire district governance process, has practicality widely.
Description of drawings
Fig. 1 is coal petrography cavity and a ravel area fire extinguishing cooling system schematic in the fire district, coalfield of the present invention.
Among the figure: 1-water inlet pipe, 2-water inlet pipe control valve, 3-I pressure meter, 4-proportioner, 5-I flap valve, 8-control valve; The 6-pipette, 7-fluid reservoir, 9-bypass pipe, 10-I gate valve, 11-II gate valve, 12-II pressure meter; 13-III pressure meter, 14-foam maker, 15-fine water fog generator, 16-II flap valve, 17-III flap valve, 18-IV pressure meter; 19-V pressure meter, 20-I gas control valve, 21-II gas control valve, 22-air inlet pipe, 23-air compressor machine; 24-III gate valve, 25-IV gate valve, 26-peep hole, 27-ball valve, the flexible high pressure resistant pipe of 28-; The 29-current divider, 32-VI pressure meter, 30-V gate valve, 31-safety relief valve, 33-ground drilling fire extinguishing medium irrigation device.
The practical implementation method
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, coalfield of invention; Mainly form by water inlet pipe 1, proportioner 4, fluid reservoir 7, foam maker 14, fine water fog generator 15, current divider 29, ground drilling fire extinguishing medium irrigation device 33 and air compressor machine 23; Wherein proportioner 4 is connected on the water inlet pipe 1; The entrance pipe of proportioner 4 is provided with water inlet pipe control valve 2 and I pressure meter 3, and the pipette 6 that proportioner 4 is connected with fluid reservoir 7 is provided with I flap valve 5; The outlet of the inlet tube of said water inlet pipe control valve 2 and proportioner 4 is provided with bypass pipe 9, and bypass pipe is provided with control valve 8; Proportioner 4 is connected with the inlet tube of foam maker 14 with fine water fog generator 15 with the outlet of bypass pipe 9; Foam maker 14 and fine water fog generator 15 parallel connections; The feed liquor pipeline of foam maker 14 is provided with I gate valve 10 and II pressure meter 12; The air inlet port pipeline of foam maker 14 links to each other with the air inlet port pipeline of fine water fog generator 15, is connected with air compressor machine 23 through air inlet pipe 22 on the pipeline that links to each other, and described air compressor machine 23 is the diesel compressor through the transportation of rubber tire means of transportation.Be provided with II flap valve 16, IV pressure meter 18 and I gas control valve 20 on the air inlet port pipeline of foam maker 14 successively, the export pipeline of foam maker 14 is provided with III gate valve 24; The inlet pipeline of fine water fog generator 15 is provided with II gate valve 11 and III pressure meter 13; Be provided with III flap valve 17, V pressure meter 19 and II gas control valve 21 on the air inlet port pipeline of fine water fog generator 15 successively, the export pipeline of fine water fog generator 15 is provided with IV gate valve 25; The outlet of foam maker 14 and fine water fog generator 15 converges through the high pressure resistant flexible pipe 28 of flexibility and is connected with current divider 29, and current divider 29 is the big fan-shaped cambered surface cavity structure of the little outlet of import, is furnished with 2～6 outlets on the fan-shaped cambered surface, is 4 outlets shown in Fig. 1.The import department of current divider 29 is provided with peep hole 26; Peep hole 26 is provided with ball valve 27; The export pipeline of current divider 29 is provided with the flexible high pressure resistant flexible pipe 28 that links to each other with ground drilling fire extinguishing medium irrigation device 33, is provided with V gate valve 30, safety relief valve 31 and VI pressure meter 32 successively on the flexible high pressure resistant flexible pipe 28; Flexible high pressure resistant pipe 28 is provided with snap joint or jointing clip.Link to each other with ground drilling fire extinguishing medium irrigation device 33 through the high pressure resistant flexible pipe 28 of flexibility; Fire extinguishing cooling is carried out in the high-temperature region of coal petrography cavity and loose region in fire-retardant thin water smoke that will produce through ground drilling fire extinguishing medium irrigation device 33 or foam delivery to the coalfield fire district; When the high-temperature region of coal petrography cavity and coal petrography loose region is filled with safety relief valve 31 pressure releases after transfer pipeline pressure is increased to the pressure release value behind fire-retardant thin water smoke or the foam; Stop perfusion, the pipelines from bursting accident that takes place because of hypertonia during can avoiding the perfusion of conventional filling system to administer; Peep hole through ground drilling fire extinguishing medium irrigation device 33 is observed administering interval temperature and gas, if also exist high temperature then to treat the perfusion of perfusion area pressure decline continued, accomplishes until administering.Connect through fan-shaped cavity between described current divider 29 imports and the outlet, four outlets are evenly arranged in the top of fan-shaped cavity; Described air compressor machine 23 is a diesel compressor, transports through the rubber tire means of transportation; The high pressure resistant pipe 28 of described flexibility connects with snap joint or clip mode; Described ground drilling fire extinguishing medium irrigation device 33 is provided with peep hole, utilizes peep hole that temperature and the gas of administering the zone are tested.
Operating principle: in fire coal petrography cavity, district, coalfield or loose region high-temperature region governance process; Control valve 2 through regulating on the water inlet pipe 1 is controlled the water yield and pressure with the control valve 8 on the bypass pipe 9; Resistance liquid in the fluid reservoir 7 or blowing agent passing ratio blender quantitative 4 are added in the water inlet pipe 1; The mixed liquor that water in resistanceization liquid or blowing agent and the water inlet pipe 1 forms produces fire-retardant thin water smoke or foam through aerosol generator 15 atomizings or foam maker 14 foaming; Through high pressure resistant flexible pipe of flexibility 28 and current divider 29 fire-retardant thin water smoke or foam are dispensed to four ground drilling fire extinguishing medium irrigation devices 33 simultaneously again, fire-retardant thin water smoke or foam are delivered in the fire district, coalfield coal petrography high-temperature region empty and loose region through ground drilling fire extinguishing medium irrigation device 33 and carry out fire extinguishing cooling.The concrete course of work is following:
When coal petrography hole region high-temperature region is administered in the fire district, coalfield; In fluid reservoir 7, add resistanceization liquid; Close import I gate valve 10, outlet III gate valve 24 and the I gas control valve 20 of foam maker and the V gate valve 30 of current divider outlet; Open the ball valve 27 of import II gate valve 11, outlet IV gate valve 25 and the peep hole of fine water fog generator 15; Regulate water inlet pipe control valve 2 and bypass pipe control valve 8; Resistance liquid passing ratio blender 4 in the fluid reservoir 7 is quantitatively added in the water inlet pipe 1, and the mixed liquor that contains resistanceization liquid is opened II gas control valve 21 and air compressor machine 23 after flowing to fine water fog generator 15, contains the mixed liquor of resistanceization liquid and source of the gas mixed aerosol in fine water fog generator 15 that air compressor machine 23 provides; Regulate the pressure and the flow of mixed liquor and gas through gas control valve 21 and gate valve 11; And observe atomizing effects through peep hole 26, and after water all is transformed into water smoke, open the V gate valve 30 between current divider 29 and the ground drilling fire extinguishing medium irrigation device 33 and close the ball valve 27 of peep hole, pour into fire-retardant thin water smoke to the high-temperature region that coal petrography cavity, coalfield fire district is distinguished simultaneously through four ground drilling fire extinguishing medium irrigation devices 33.When the high-temperature region of hole region be filled with behind the thin water smoke line pressure raise reach the pressure release definite value after safety relief valve 31 pressure releases, stop perfusion; And the peep hole through ground drilling fire extinguishing medium irrigation device 33 observes administering interval temperature and gas, if also exist high temperature then to treat the perfusion of perfusion area pressure decline continued, until administering completion.When coal petrography loose region high-temperature region is administered in the fire district, coalfield; In fluid reservoir 7, add blowing agent; Close import II gate valve 11, outlet IV gate valve 25 and the II gas control valve 21 of fine water fog generator and the V valve 30 of current divider outlet; Open the import I gate valve 10 of foam maker 14 and the ball valve 27 of outlet III gate valve 24 and peep hole; Regulate the control valve 8 of water inlet pipe control valve 2 and bypass pipe; Blowing agent passing ratio blender 4 in the fluid reservoir 7 is quantitatively added in the water inlet pipe 1, and the mixed liquor that contains blowing agent is opened I gas control valve 20 and air compressor machine 23 after flowing to foam maker 14, contains the mixed liquor of blowing agent and source of the gas mixed foaming in foam maker 14 that air compressor machine 23 provides; Regulate the pressure and the flow of mixed liquor and gas through I gas control valve 20 and I gate valve 10; And observe foaming effects through peep hole 26, after water all is transformed into foam, open V gate valve 30 and close the ball valve 27 of peep hole, through four ground drilling fire extinguishing medium irrigation devices 33 simultaneously to the high-temperature region perfusion foam of coalfield fire district coal petrography ravel area.Line pressure raises and to reach safety relief valve 31 pressure releases after the pressure release definite value after foam is filled in the high-temperature region of loose region, stops perfusion; And the peep hole through ground drilling fire extinguishing medium irrigation device 33 observes administering interval temperature and gas, if also exist high temperature then to treat the perfusion of perfusion area pressure decline continued, until administering completion.
Claims (4)
1. coal petrography cavity and ravel area fire extinguishing cooling system during a coalfield fire is distinguished; Comprise water inlet pipe (1), proportioner (4), fluid reservoir (7), foam maker (14), fine water fog generator (15), ground drilling fire extinguishing medium irrigation device (33) and air compressor machine (23); It is characterized in that: the entrance pipe of said proportioner (4) is provided with water inlet pipe control valve (2) and I pressure meter (3), and the pipette (6) that proportioner (4) is connected with fluid reservoir (7) is provided with I flap valve (5); The outlet of the inlet tube of said water inlet pipe control valve (2) and proportioner (4) is provided with bypass pipe (9), and bypass pipe is provided with control valve (8); Proportioner (4) is connected with the inlet tube of foam maker (14) with fine water fog generator (15) with the outlet of bypass pipe (9); Foam maker (14) and fine water fog generator (15) parallel connection; The feed liquor pipeline of foam maker (14) is provided with I gate valve (10) and II pressure meter (12); The air inlet port pipeline of foam maker (14) links to each other with the air inlet port pipeline of fine water fog generator (15), is connected with air compressor machine (23) through air inlet pipe (22) on the pipeline that links to each other; Be provided with II flap valve (16), IV pressure meter (18) and I gas control valve (20) on the air inlet port pipeline of foam maker (14) successively, the export pipeline of foam maker (14) is provided with III gate valve (24); The inlet pipeline of fine water fog generator (15) is provided with II gate valve (11) and III pressure meter (13); Be provided with III flap valve (17), V pressure meter (19) and II gas control valve (21) on the air inlet port pipeline of fine water fog generator (15) successively, the export pipeline of fine water fog generator (15) is provided with IV gate valve (25); The outlet of foam maker (14) and fine water fog generator (15) converges through the high pressure resistant flexible pipe of flexibility (28) and is connected with current divider (29); The import department of current divider (29) is provided with peep hole (26); Peep hole (26) is provided with ball valve (27); The export pipeline of current divider (29) is provided with the flexible high pressure resistant flexible pipe (28) that links to each other with ground drilling fire extinguishing medium irrigation device (33), is provided with V gate valve (30), safety relief valve (31) and VI pressure meter (32) on the flexible high pressure resistant flexible pipe (28) successively.
2. coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, coalfield according to claim 1, it is characterized in that: described current divider (29) is the big fan-shaped cambered surface cavity structure of the little outlet of import, is furnished with 2-6 outlet on the fan-shaped cambered surface.
3. coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, coalfield according to claim 1, it is characterized in that: described air compressor machine (23) is the diesel compressor through the transportation of rubber tire means of transportation.
4. coal petrography cavity and ravel area fire extinguishing cooling system in the fire district, coalfield according to claim 1, it is characterized in that: the high pressure resistant pipe of described flexibility (28) is provided with snap joint or jointing clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210098626.1A CN102606189B (en) | 2012-04-06 | 2012-04-06 | Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210098626.1A CN102606189B (en) | 2012-04-06 | 2012-04-06 | Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field |
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| Publication Number | Publication Date |
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| CN102606189A true CN102606189A (en) | 2012-07-25 |
| CN102606189B CN102606189B (en) | 2014-07-16 |
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| CN201210098626.1A Active CN102606189B (en) | 2012-04-06 | 2012-04-06 | Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691351A (en) * | 2013-12-06 | 2014-04-02 | 中国矿业大学 | Jet flow self-absorption foaming agent parallel foaming system |
| CN104863623A (en) * | 2015-05-26 | 2015-08-26 | 徐州赛孚瑞科高分子材料有限公司 | Mining high-water-content foaming material injection fire-extinguishing system and process |
| CN105953076A (en) * | 2016-05-20 | 2016-09-21 | 西南石油大学 | Thick oil flowing resistance reducing device and method by injecting foam from screw groove hole |
| CN110030028A (en) * | 2018-10-08 | 2019-07-19 | 江苏信创安全技术研究院有限公司 | A kind of Intelligent water injection cooling high-efficiency water-saving system and method administered for coal fire |
| CN110284918A (en) * | 2019-07-03 | 2019-09-27 | 安徽理工大学 | A kind of gel foam extinguishing device and its application method |
| CN111035879A (en) * | 2019-12-16 | 2020-04-21 | 南京睿实消防安全设备有限公司 | Double-medium high-pressure water mist fire extinguishing system and fire extinguishing method thereof |
| CN113236336A (en) * | 2021-06-15 | 2021-08-10 | 国能乌海能源五虎山矿业有限责任公司 | Green energy-saving coal seam water injection and grouting cooperative disaster prevention system and method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103691351A (en) * | 2013-12-06 | 2014-04-02 | 中国矿业大学 | Jet flow self-absorption foaming agent parallel foaming system |
| CN103691351B (en) * | 2013-12-06 | 2015-10-28 | 中国矿业大学 | A kind of jetted self-priming blowing agent foamed system in parallel |
| CN104863623A (en) * | 2015-05-26 | 2015-08-26 | 徐州赛孚瑞科高分子材料有限公司 | Mining high-water-content foaming material injection fire-extinguishing system and process |
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| CN110030028A (en) * | 2018-10-08 | 2019-07-19 | 江苏信创安全技术研究院有限公司 | A kind of Intelligent water injection cooling high-efficiency water-saving system and method administered for coal fire |
| CN110030028B (en) * | 2018-10-08 | 2021-01-26 | 江苏信创安全技术研究院有限公司 | Intelligent water injection cooling efficient water-saving system and method for coal fire treatment |
| CN110284918A (en) * | 2019-07-03 | 2019-09-27 | 安徽理工大学 | A kind of gel foam extinguishing device and its application method |
| CN111035879A (en) * | 2019-12-16 | 2020-04-21 | 南京睿实消防安全设备有限公司 | Double-medium high-pressure water mist fire extinguishing system and fire extinguishing method thereof |
| CN113236336A (en) * | 2021-06-15 | 2021-08-10 | 国能乌海能源五虎山矿业有限责任公司 | Green energy-saving coal seam water injection and grouting cooperative disaster prevention system and method |
| CN113236336B (en) * | 2021-06-15 | 2024-05-14 | 国能乌海能源五虎山矿业有限责任公司 | Environment-friendly energy-saving coal seam water injection and grouting collaborative disaster prevention system and method |
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| CN102606189B (en) | 2014-07-16 |
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