CN103691082B - The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof - Google Patents
The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof Download PDFInfo
- Publication number
- CN103691082B CN103691082B CN201310704991.7A CN201310704991A CN103691082B CN 103691082 B CN103691082 B CN 103691082B CN 201310704991 A CN201310704991 A CN 201310704991A CN 103691082 B CN103691082 B CN 103691082B
- Authority
- CN
- China
- Prior art keywords
- resistanceization
- colloid
- jet
- nozzle
- foam device
- 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 - Fee Related
Links
Abstract
The present invention proposes a kind of lazy bubble preparation facilities of colloid resistanceization preventing and treating coal spontaneous combustion, comprise the jet-flow proportioning mixer apparatus, one-level foam device, secondary foam device and the air transporting arrangement that are connected successively; Jet-flow proportioning mixer apparatus comprises jet-flow proportioning blender, and (ejector in fire-fighting copied by jet-flow proportioning device, according to actual needs, by certain calculating, obtain the size of jet-flow proportioning blender each several part, then design customized), the water under high pressure import that is connected with jet-flow proportioning mixer nozzle, the colloid resistanceization liquid import that is connected with jet-flow proportioning blender imbibition room, jet-flow proportioning blender delivery outlet is connected with one-level foam device inlet; The present invention prevents and treats the lazy bubble preparation facilities of colloid resistanceization and the technique thereof of coal spontaneous combustion, using press water and pressure nitrogen gas as transmitting power, safe and reliable.
Description
Technical field
The present invention relates to coal spontaneous combustion preventing and extinguishing fire technology field, goaf, particularly relate to a kind of lazy bubble preparation facilities of colloid resistanceization and technique thereof of preventing and treating coal spontaneous combustion.
Background technology
The whole nation has the mine of 56% to there is the danger of spontaneous fire in colliery, direct and nearly 10,000,000,000 yuan of the indirect economic loss caused every year.Existing preventing and extinguishing fire technology is all realize fire extinguishing by reducing or reduce mixture of coal with oxygen, larger for the resistance in comparatively unobstructed goaf of leaking out, inerting, leak stopping difficulty.Especially combine and adopt the employing with Longwall top coal caving technology, pit mining intensity strengthens, ventilating system relative complex, and goaf scope constantly expands, and goaf is the most also the region that freely burning fire the most often occurs, significantly increase the frequency of mine spontaneous combustion of coal and the difficulty of control.Goaf drop has a large amount of something lost coals; There is oxygen supply of continuously leaking out; Possess good something lost coal accumulation of heat environment, and goaf area is large, spontaneous combustion " three bands " be dynamic mobile with the propelling of coal-face, loses that coal high temperature range is large, high temperature dot is hidden, once it is large-area often that spontaneous combustion occurs, difficulty of putting out a fire is very large.
The Main Means of current control coal spontaneous combustion is cooling (as water filling, slip casting, glue injection body, note three-phase froth etc.) and goaf inerting (as nitrogen injection, carbon dioxide injection etc.), although the fire extinguishing of these means in the low bit space in Close Quarters Goaf, colliery has played positive role, the high bit space for remote goaf has caught fire and can't prove effective completely.Because coal spontaneous combustion mostly occurs in goaf, the area in goaf is larger, burning things which may cause a fire disaster point is more hidden and be difficult to determine its particular location, conventional fireproofing extinguishing materials is difficult to carry out large area filling, and do not possess good accumulation, undesirable to region coal spontaneous combustion fire effects such as preventing and controlling face goafs.So goaf can be made to fall oxygen, inerting, leak stopping in the urgent need to research, resistance formed material can be taken to remote hidden region resistanceization spontaneous combustion of remaining coal, and easily pile up and the fire proofing material of arrival goaf height bit space, equipment and technique for applying.
Summary of the invention
In order to solve in background technology existing technical problem, the present invention proposes a kind of lazy bubble preparation facilities of colloid resistanceization and technique thereof of preventing and treating coal spontaneous combustion, using press water and pressure nitrogen gas as transmitting power, safe and reliable.
Technical solution of the present invention is: the lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion, is characterized in that: comprise the jet-flow proportioning mixer apparatus, one-level foam device, secondary foam device and the air transporting arrangement that are connected successively;
Jet-flow proportioning mixer apparatus comprises jet-flow proportioning blender, and (ejector in fire-fighting copied by jet-flow proportioning device, according to actual needs, by certain calculating, obtain the size of jet-flow proportioning blender each several part, then design customized), the water under high pressure import that is connected with jet-flow proportioning mixer nozzle, the colloid resistanceization liquid import that is connected with jet-flow proportioning blender imbibition room, jet-flow proportioning blender delivery outlet is connected with one-level foam device inlet;
One-level foam device comprises the spiral nozzle that foaming chamber is connected with the import of colloid resistanceization liquid, foam screen is provided with in foaming chamber, one-level foam device air inlet is connected with air transporting arrangement delivery outlet, and the outlet of one-level foam device foam solution is connected with the import of secondary foam device foam solution;
Air transporting arrangement is for providing the conveying device of gases at high pressure, and described gases at high pressure are nitrogen or carbon dioxide.
Above-mentioned jet-flow proportioning blender comprises nozzle, is positioned at the imbibition room of nozzle periphery, the trunnion be connected with imbibition room and the anemostat be connected with trunnion; Described anemostat is connected with jet-flow proportioning blender delivery outlet.
Above-mentioned foam screen is stainless steel compacting net, and described nozzle is spiral solid conical nozzle.
The press water inlet pipeline of jet-flow proportioning blender and resistanceization liquid inlet pipeline are respectively equipped with explosion-proof vortex-shedding meter, filter screen and mining stop valve.
The connection of one-level foam device and secondary foam device is Flange joint, uses two-stage to foam simultaneously or be used alone one-level foaming according to the different choice of fed distance.
Have foam screen in one-level foam device, be provided with tapping valve bottom secondary foam device, import is connected with air transporting arrangement delivery outlet.
The lazy bubble preparation technology of colloid resistanceization of control coal spontaneous combustion, is characterized in that: comprise the following steps:
1) lazy for colloid resistanceization bubble preparation facilities is put near goaf, press water enters the nozzle of jet-flow proportioning blender by press water import, at nozzle exit due to the stiction between press water jet and air, the air near nozzle is taken away, make to form negative pressure near nozzle;
2) colloid resistanceization liquid is sucked up through imbibition room under negative nozzle pressure and environment atmospheric pressure effect, and together enters in trunnion with press water, forms colloid resistanceization mixed liquor;
3) colloid resistanceization mixed liquor enters anemostat, to the pressure of anemostat exit colloid resistanceization mixed liquor higher than the pressure being flowed into trunnion by the colloid resistanceization liquid pumped, the pressure of trunnion is flowed into lower than press water, colloid resistanceization mixed liquor is discharged from the anemostat of DN20mm, by spiral solid nozzle, enter one-level foam device;
4) through spiral solid nozzle, colloid resistanceization mixed liquor is sprayed onto on foam screen, and by air transporting arrangement, nitrogen enters one-level foam device, and by foam screen, colloid resistanceization mixed liquor carries out one step foaming;
5) in secondary foam device, second time of foaming is carried out by air transporting arrangement nitrogen injection.
Above-mentioned steps 2) in colloid resistanceization mixed liquor and the volume flow ratio of press water be 3:97 or 6:94.
Above-mentioned steps 4) in the design parameter of one step foaming be: the flow of power water is 3m
3/ h, nitrogen flow is 300-600m
3/ h; The flow entering the colloid resistanceization mixed liquor of one-level foam device is 3.093m
3/ h or 3.191m
3/ h.
The present invention has the following advantages:
1) the present invention is using press water and pressure nitrogen gas as transmitting power, so safe and reliable.Because the lazy bubble of colloid resistanceization of preparation is foam-like, power by pressure nitrogen gas can cover the something lost coal of overall large area goaf and high bit space rapidly, resistance, leak stopping, prolongation spontaneous combustion period, play the effect of parcel, resistanceization, inerting and absorbing and cooling temperature, effectively to suppress and the development of prevention coal spontaneous combustion.
2) the present invention can utilize down-hole nitrogen-filling system, and by air transporting arrangement, lazy for colloid resistanceization bubble is transported to the hidden region of goaf coal spontaneous combustion, the nitrogen entering flame range has the effect of falling oxygen inerting.Colloid inhibition foam has that fill volume is at short notice large, mobility and the feature such as accumulation is good, colloid retardant can be delivered to different-thickness, difform loose coal space or falling space, block the passage that leaks out, isolated air, play smothering action, colloid retardant is attached to loose coal surface, the film that one deck can suppress oxygen to contact with coal is formed with water, stop the activity chain cyclic group reaction on oxygen and texture of coal, the affinity of coal and oxygen is reduced, and absorb coal surface oxidation free radical, stop coal body oxidation heat liberation; Bring a large amount of moisture into by foam, absorb a large amount of heats during evaporation, play cooling effect, reduce the heating rate of loose coal.So the lazy bubble of colloid resistanceization has the fire extinguishing effect of multi-effect cooperative, fire extinguishing Be very effective.
3) the present invention adopts secondary foam device, and former device compares that to have foaming effect good, and fed distance is far away, to the utilization rate advantages of higher of colloid resistanceization mixed liquor, well solves the problem of one-level foam device transmitting power deficiency.
4) the present invention adopts jet-flow proportioning blender to mix colloid resistanceization liquid and water, utilizes down-hole pressure water as power, does not need water pump, and then does not also need to use electricity, ensure that the safety of down-hole.
5) the lazy brewed standby device volume of colloid resistanceization provided by the invention is little, structure is simple, easy to operate, security of operation, reliable and stable, the water supply using power that down-hole can be adopted normally to use, nitrogen-filling system, safety and reliability is used at highly gassy mine, and to environment and personnel without any negative effect.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is structure diagram of the present invention;
1-jet-flow proportioning blender; The import of 2-press water; 3-is mining stop valve; 4-filter screen; The explosion-proof vortex-shedding meter of 5-; 6-foam device air inlet; 7-jet-flow proportioning mixer nozzle; 8-imbibition room; 9-trunnion; 10-anemostat; 11-jet-flow proportioning mixer outlet; The import of 12-colloid resistanceization liquid; 13-one-level foam device shell; 14-spiral nozzle; 15-foam screen; 16-foam outlet; 17-hydrops exports; 18-snap joint; 19-flange-interface; 20-secondary foam device shell;
Detailed description of the invention
See Fig. 1, Fig. 2, the lazy bubble preparation facilities of colloid resistanceization of the present invention comprises jet-flow proportioning mixer apparatus, one-level foam device, secondary foam device and air transporting arrangement.Jet-flow proportioning mixer apparatus comprises jet-flow proportioning blender 1, the press water import 2 be connected with jet-flow proportioning device nozzle 7, the colloid resistanceization liquid import 12 that is connected with jet-flow proportioning device imbibition room 8, and jet-flow proportioning device delivery outlet 11 is connected with one-level foam device inlet; One-level foam device comprises the foaming chamber be placed in shell, the spiral nozzle 14 be connected with inlet, foam screen 15 is provided with in foaming chamber, the colloid resistanceization lazy bubble delivery outlet of foaming chamber is connected with the lazy bubble import of secondary foam device colloid resistanceization, and foam device air inlet 6 exports with air transporting arrangement and is connected; Air transporting arrangement is for providing the conveying device of gases at high pressure, and described pressed gas is nitrogen or carbon dioxide, considers the safety to staff, preferred nitrogen.Secondary foam device air inlet 6 exports with air transporting arrangement and is connected, the lazy mouth that bubbles out of secondary foam device colloid resistanceization is connected with foam outlet 16, consider that retardant is to the broken bubble effect of foam and foaming effect, select polymer colloid retardant, a certain amount of foam stabilizer is added, surfactant etc. in resistanceization liquid.The pressure of nitrogen is preferably 0.6 ~ 1.0MPa.
See Fig. 2, jet-flow proportioning blender comprises nozzle 7, is positioned at the imbibition room 8 of nozzle periphery, the trunnion 9 be connected with imbibition room and the anemostat 10 be connected with trunnion, through a series of calculating, different according to selected pressure, and the proportioner selected is also different, length of throat is generally trunnion radius 7 times, diffusion tube lengths is 8 times of trunnion radius, nozzle is trunnion radius to the distance of trunnion, when the pressure of press water is 0.6 ~ 1.2Mpa, the volume flow ratio of resistanceization mixed liquor and press water is 3:97 or 6:94.
Due to the present invention operationally, the lazy bulb apparatus of colloid resistanceization can produce liquid in foaming process, affect foaming work, therefore, the lazy bulb apparatus of colloid resistanceization is provided with leakage fluid dram 17 on secondary foam device, and tapping valve is housed, when colloid resistanceization mixed liquor reach a certain height and affects foaming effect in secondary foam device, open tapping valve, residual liquid is discharged.
In order to pressure and the flow of liquid on real-time monitored pipeline, prevent impurity from entering, on press water import 2 pipeline He on colloid resistanceization liquid import 12 pipeline, be provided with mining stop valve 3, filter screen 4, explosion-proof vortex-shedding meter 5, pipeline enclosure adopts mining quick connector; The pipeline of air transporting arrangement air inlet is provided with explosion-proof vortex-shedding meter 5, mining stop valve 3; The flow of press water and colloid resistanceization liquid and ratio can utilize mining stop valve 3 to carry out regulating and control.Foam screen 15 in one-level foam device is by flange-interface 19, be stuck in foaming chamber, can dismantle, be convenient for changing, one-level foam device is divided into two parts, by Flange joint, be convenient to installation and the replacing of solid spiral nozzle 14, solid spiral nozzle 14 can also be regulated to the distance of foam screen 15.The termination of each pipeline of the present invention have employed mining snap joint, and staff according to the concrete condition of the colliery degree of depth, can increase, dismantles or install device of the present invention flexibly.
As shown in Figure 1, the use flow chart of the lazy bubble preparation facilities of colloid resistanceization, water under high pressure and colloid resistanceization liquid pass through the mixing of jet-flow proportioning blender, enter one-level foam device, through one step foaming, enter secondary foam device by air transporting arrangement, carry out second time of foaming, again by air transporting arrangement, inject target area through foam outlet.
Example illustrates, and pressed gas is for nitrogen:
Process chart as shown in Figure 1, at certain mine, lazy for colloid resistanceization bubble preparation facilities is put near goaf, adopt down-hole special pressure water transfer pipeline, 1.0Mpa press water enters the nozzle of jet-flow proportioning blender by press water import, at nozzle exit due to the stiction between press water jet and air, air near nozzle is taken away, (flow velocity of main flow increases to make to form negative pressure near nozzle, potential energy reduces, kinetic energy increases), under environment atmospheric pressure effect, be sucked up (volume flow ratio of colloid resistanceization liquid and press water is 3:97 or 6:94) by the colloid resistanceization liquid pumped through imbibition room, and together enter in trunnion in company with press water, two bursts of liquid generation momentum-exchanges in trunnion, part energy passes to by the colloid resistanceization liquid pumped by press water, press water flows decrease, accelerated by the colloid resistanceization liquid velocity pumped, the speed arriving two strands of liquid during trunnion end is gradually consistent, mixed process completes substantially, form colloid resistanceization mixed liquor and enter anemostat, reduce gradually (kinetic energy reduces gradually) at diffusion velocity in pipes, potential energy (pressure) increases gradually, to the pressure of anemostat exit colloid resistanceization mixed liquor higher than the pressure being flowed into trunnion by the colloid resistanceization liquid pumped, the pressure of trunnion is flowed into lower than press water, last colloid resistanceization mixed liquor is discharged from the anemostat of DN20mm, by spiral solid nozzle, enter one-level foam device.
In the lazy bulb apparatus of colloid resistanceization, through spiral solid nozzle, colloid resistanceization mixed liquor is sprayed onto on foam screen, and by air transporting arrangement, nitrogen enters one-level foam device, and by foam screen, colloid resistanceization mixed liquor carries out one step foaming, and the flow of power water is 3m
3/ h, nitrogen flow is 300-600m
3/ h, calculates according to the ratio of 3:97 or 6:94, then the colloid resistanceization liquid of consumption per hour is 0.093m
3/ h or 0.191m
3/ h, the flow entering the colloid resistanceization mixed liquor of one-level foam device is 3.093m
3/ h or 3.191m
3/ h.After one step foaming device, 60-80 can being reached doubly through test determination coefficient of foaming, in order to strengthen utilization rate and the coefficient of foaming of resistanceization mixed liquor further, in secondary foam device, carrying out second time of foaming, final coefficient of foaming can reach 120-200 doubly, and the foam volume of generation is 360-700m
3/ h, the steady bubble time is greater than 20 hours.
As shown in Figure 1, after second time of foaming, pass through air transporting arrangement, through pre-buried pipeline, lazy for colloid resistanceization bubble is transported to goaf, utilize flow behavior and transport characteristics that the lazy bubble of colloid resistanceization is good, colloid retardant is taken to remote hidden spontaneous fine seam, and goaf height bit space can be arrived, especially coal is pushed up and coal road spontaneous combustion effect is ideal to prevention goaf " twice two line ", one deck resistanceization film is formed on coal body surface, the composition of resistanceization film has very strong water imbibition, coal can be made to be in dampness for a long time, reduce the functional group of oxidation of coal reaction or stop radical reaction, oxidation rate is suppressed, extend coal spontaneous combustion stage, nitrogen is as the power of Compressed Gas, while inerting spontaneous combustion region, also the effect suppressing gas and water-gas to fire is played.And foam has the advantages that viscosity is high, elasticity is large and density is little, can move and accumulate in the space in goaf, in stope caved gangue, setting up the airtight district of air.Foam also has the character of anti-thermit powder, and the moisture in foam evaporates from absorbing heat around, 1m
3water flash to water vapour heat absorption 46021.5J, simultaneously the thermal capacity of coal and heat conductivility also increase.Foam solution has good humidification to coal in addition, can form film on the surface of coal, hinders coal to the absorption of oxygen, weakens the oxidation of coal, reduce the electrothermal calefactive rate of coal.
After injecting the lazy bubble of colloid resistanceization, carry out Real-Time Monitoring to heterogeneous goaf, carbon monoxide release amount obviously reduces, and temperature is also reduced within zone of reasonableness, fire extinguishing successful.
Claims (9)
1. prevent and treat the lazy bubble preparation facilities of colloid resistanceization of coal spontaneous combustion, it is characterized in that: comprise the jet-flow proportioning mixer apparatus, one-level foam device, secondary foam device and the air transporting arrangement that are connected successively;
Jet-flow proportioning mixer apparatus comprises jet-flow proportioning blender, the water under high pressure import be connected with jet-flow proportioning mixer nozzle, the colloid resistanceization liquid import that is connected with jet-flow proportioning blender imbibition room, and jet-flow proportioning blender delivery outlet is connected with one-level foam device inlet;
One-level foam device comprises the spiral nozzle that foaming chamber is connected with the import of colloid resistanceization liquid, foam screen is provided with in foaming chamber, one-level foam device air inlet is connected with air transporting arrangement delivery outlet, and the outlet of one-level foam device foam solution is connected with the import of secondary foam device foam solution;
Air transporting arrangement is for providing the conveying device of gases at high pressure, and described gases at high pressure are nitrogen or carbon dioxide.
2. the lazy bubble preparation facilities of the colloid resistanceization of control coal spontaneous combustion according to claim 1, is characterized in that: described jet-flow proportioning blender comprises nozzle, is positioned at the imbibition room of nozzle periphery, the trunnion be connected with imbibition room and the anemostat be connected with trunnion; Described anemostat is connected with jet-flow proportioning blender delivery outlet.
3. the lazy bubble preparation facilities of the colloid resistanceization of control coal spontaneous combustion according to claim 1 and 2, is characterized in that: described foam screen is stainless steel compacting net, and described nozzle is spiral solid conical nozzle.
4. the lazy bubble preparation facilities of the colloid resistanceization of control coal spontaneous combustion according to claim 1 and 2, is characterized in that: the press water inlet pipeline of jet-flow proportioning blender and resistanceization liquid inlet pipeline are respectively equipped with explosion-proof vortex-shedding meter, filter screen and mining stop valve.
5. the lazy bubble preparation facilities of the colloid resistanceization of control coal spontaneous combustion according to claim 1 and 2, it is characterized in that: the connection of one-level foam device and secondary foam device is Flange joint, use two-stage to foam according to the different choice of fed distance simultaneously or be used alone one-level foaming.
6. the lazy bubble preparation facilities of the colloid resistanceization of control coal spontaneous combustion according to claim 1 and 2, is characterized in that: have foam screen in one-level foam device, and be provided with tapping valve bottom secondary foam device, import is connected with air transporting arrangement delivery outlet.
7. prevent and treat the lazy bubble preparation technology of colloid resistanceization of coal spontaneous combustion, it is characterized in that: comprise the following steps:
1) lazy for colloid resistanceization bubble preparation facilities is put near goaf, press water enters the nozzle of jet-flow proportioning blender by press water import, at nozzle exit due to the stiction between press water jet and air, the air near nozzle is taken away, make to form negative pressure near nozzle;
2) colloid resistanceization liquid is sucked up through imbibition room and together enters in trunnion with press water under negative nozzle pressure and environment atmospheric pressure effect, forms colloid resistanceization mixed liquor;
3) colloid resistanceization mixed liquor enters anemostat, to the pressure of anemostat exit colloid resistanceization mixed liquor higher than the pressure being flowed into trunnion by the colloid resistanceization liquid pumped, the pressure of trunnion is flowed into lower than press water, colloid resistanceization mixed liquor is discharged from the anemostat of DN20mm, by spiral solid nozzle, enter one-level foam device;
4) through spiral solid nozzle, colloid resistanceization mixed liquor is sprayed onto on foam screen, and by air transporting arrangement, nitrogen enters one-level foam device, and by foam screen, colloid resistanceization mixed liquor carries out one step foaming;
5) in secondary foam device, second time of foaming is carried out by air transporting arrangement nitrogen injection.
8. the lazy bubble preparation technology of the colloid resistanceization of control coal spontaneous combustion according to claim 7, is characterized in that: described step 2) in colloid resistanceization mixed liquor and the volume flow ratio of press water be 3:97 or 6:94.
9. the lazy bubble preparation technology of the colloid resistanceization of control coal spontaneous combustion according to claim 8, is characterized in that: in described step 4), the design parameter of one step foaming is: the flow of power water is 3m
3/ h, nitrogen flow is 300-600m
3/ h; The flow entering the colloid resistanceization mixed liquor of one-level foam device is 3.093m
3/ h or 3.191m
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310704991.7A CN103691082B (en) | 2013-12-19 | 2013-12-19 | The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310704991.7A CN103691082B (en) | 2013-12-19 | 2013-12-19 | The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103691082A CN103691082A (en) | 2014-04-02 |
| CN103691082B true CN103691082B (en) | 2016-01-27 |
Family
ID=50352845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310704991.7A Expired - Fee Related CN103691082B (en) | 2013-12-19 | 2013-12-19 | The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103691082B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107441657A (en) * | 2017-09-30 | 2017-12-08 | 南京工业大学 | Three-phase jet foam produces equipment and its three-phase jet foam production method |
| CN110847948A (en) * | 2019-11-09 | 2020-02-28 | 山东唐口煤业有限公司 | Fire prevention and extinguishing system injected with composite inert gas |
| CN111810218B (en) * | 2020-06-16 | 2021-06-25 | 山东科技大学 | Underground liquid CO2Phase change power multifunctional perfusion system and use method |
| CN117167073B (en) * | 2023-09-15 | 2024-03-12 | 中国矿业大学 | Low-temperature composite inert gas fire extinguishing system and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909775A (en) * | 1997-09-10 | 1999-06-08 | Grindley; Robert M. | Dual chamber foam pump |
| CN1411876A (en) * | 2002-12-02 | 2003-04-23 | 中国矿业大学 | Technique for resisting coal self-combustion and extinguishing fire |
| CN101021160A (en) * | 2007-03-05 | 2007-08-22 | 煤炭科学研究总院重庆分院 | High power inhibition foam for preventing and controlling coal self-ignition and generating device thereof |
| CN102847476A (en) * | 2012-10-08 | 2013-01-02 | 中国矿业大学 | Pneumatic jet-type proportional foaming device |
| CN203694462U (en) * | 2013-12-19 | 2014-07-09 | 西安科技大学 | Colloid inhibition inerting foam preparation device for preventing spontaneous combustion of coal |
-
2013
- 2013-12-19 CN CN201310704991.7A patent/CN103691082B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909775A (en) * | 1997-09-10 | 1999-06-08 | Grindley; Robert M. | Dual chamber foam pump |
| CN1411876A (en) * | 2002-12-02 | 2003-04-23 | 中国矿业大学 | Technique for resisting coal self-combustion and extinguishing fire |
| CN101021160A (en) * | 2007-03-05 | 2007-08-22 | 煤炭科学研究总院重庆分院 | High power inhibition foam for preventing and controlling coal self-ignition and generating device thereof |
| CN102847476A (en) * | 2012-10-08 | 2013-01-02 | 中国矿业大学 | Pneumatic jet-type proportional foaming device |
| CN203694462U (en) * | 2013-12-19 | 2014-07-09 | 西安科技大学 | Colloid inhibition inerting foam preparation device for preventing spontaneous combustion of coal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103691082A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108525166B (en) | Foam generating method using liquid nitrogen, application thereof and fire extinguishing method | |
| CN100547226C (en) | The high power inhibition foam and the generating means thereof of control spontaneous combustionof coal | |
| CN103691082B (en) | The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof | |
| CN105749449B (en) | A kind of tunnel fire system and extinguishing method | |
| RU2620335C2 (en) | Device for creation of fluid rigid foam for fire prevention and extinguishing in coal mine | |
| CN104329109A (en) | Gob retardant efficient spraying system and spraying method | |
| CN1411876A (en) | Technique for resisting coal self-combustion and extinguishing fire | |
| KR101571003B1 (en) | Compressed air foam extinguisher | |
| CN201840804U (en) | Foam producing device used for fire experiment | |
| JP5775217B2 (en) | Foam mixing system using compressed air | |
| CN103306706B (en) | Device and process for preparing aerosol for preventing coal from spontaneous combustion | |
| CN101612458A (en) | Energy storage positive pressure froth fire extinguishing system | |
| CN203694462U (en) | Colloid inhibition inerting foam preparation device for preventing spontaneous combustion of coal | |
| CN209011868U (en) | Fire extinguishing device | |
| CN109372569B (en) | Mining fire prevention and extinguishing device capable of adapting to different mine fires | |
| CN104524717A (en) | Foam fire-extinguishing device with internal screw type air compressor | |
| CN203620123U (en) | Fire extinguishing system applied to 1000KV main transformer | |
| CN112412526B (en) | Coal mine gas and fire disaster co-treatment system and use method thereof | |
| CN203383846U (en) | Device for preparing aerosol for prevention and control of coal spontaneous combustion | |
| CN201492845U (en) | Medium-multiple inert gas foam generator | |
| CN110448838A (en) | Floating plate sealing ring extinguishing device and method | |
| CN210131281U (en) | High-pressure water mist fire extinguishing system applied to urban underground comprehensive pipe gallery | |
| CN201441767U (en) | Energy storing positive pressure foam fire extinguishing system | |
| CN108412536B (en) | Cryogenic three-phase inerting slurry generating device for preventing coal spontaneous combustion and using method | |
| CN215372803U (en) | Compressor factory building ventilation unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Li Inventor before: Deng Jun Inventor before: Fei Jinbiao Inventor before: Cheng Fangming Inventor before: Liu Wenyong Inventor before: Wen Hu Inventor before: Wang Weifeng Inventor before: Wu Linfeng Inventor before: Zhang Xinhai Inventor before: Ma Li Inventor before: Jin Yongfei Inventor before: Luo Zhenmin Inventor before: Zhang Yanni |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DENG JUN WEN HU WANG WEIFENG WU LINFENG ZHANG XINHAI MA LI JIN YONGFEI LUO ZHENMIN ZHANG YANNI FEI JINBIAO CHENG FANGMING LIU WENYONG TO: MA LI |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20171219 |