CN107754117A - Autoreaction generates the goaf fireproof fire-extinguishing device and method of carbon dioxide - Google Patents
Autoreaction generates the goaf fireproof fire-extinguishing device and method of carbon dioxide Download PDFInfo
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- CN107754117A CN107754117A CN201711142146.XA CN201711142146A CN107754117A CN 107754117 A CN107754117 A CN 107754117A CN 201711142146 A CN201711142146 A CN 201711142146A CN 107754117 A CN107754117 A CN 107754117A
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- China
- Prior art keywords
- goaf
- carbon dioxide
- tank body
- fireproof fire
- autoreaction
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 163
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 81
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000007787 solid Substances 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 229920001971 elastomer Polymers 0.000 claims abstract description 40
- 239000003245 coal Substances 0.000 claims abstract description 29
- -1 polyethylene octene Polymers 0.000 claims abstract description 28
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 27
- 239000000806 elastomer Substances 0.000 claims abstract description 27
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 10
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- HEAMQYHBJQWOSS-UHFFFAOYSA-N ethene;oct-1-ene Chemical compound C=C.CCCCCCC=C HEAMQYHBJQWOSS-UHFFFAOYSA-N 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000002277 temperature effect Effects 0.000 claims description 4
- 241000790917 Dioxys <bee> Species 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000011260 aqueous acid Substances 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 239000000052 vinegar Substances 0.000 claims 1
- 235000021419 vinegar Nutrition 0.000 claims 1
- 239000000376 reactant Substances 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 3
- 229960004424 carbon dioxide Drugs 0.000 description 58
- 238000007789 sealing Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229920001617 Vinyon Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/004—Making of fire-extinguishing materials immediately before use for producing carbon-dioxide snow, carbon-dioxide ice, carbon-dioxide gas, carbon-dioxide liquid, or mixtures thereof
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
Landscapes
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Mining & Mineral Resources (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
A kind of goaf fireproof fire-extinguishing device and method of autoreaction generation carbon dioxide, belongs to underground coal mine spontaneous combustion diaster prevention and control field.The device includes hermetically sealed can, completely cuts off thin slice, stephanoporate framework pad, letting out can piece, hollow spiral cover, solid sodium bicarbonate and aqueous acetic acid；Hermetically sealed can is the solid tank body of splendid attire solid sodium bicarbonate and the liquid tank body of splendid attire aqueous acetic acid by polyethylene octene elastomer thin slice and the isolation of stephanoporate framework pad；Hermetically sealed can is arranged in goaf, when oxidization of remained coal spontaneous combustion reaches specified temp, polyethylene octene elastomer thin slice reaches molten condition, rupture, the endothermic reaction occurs for two kinds of reactant contacts, and generates great amount of carbon dioxide, compared with 100~140 times of hermetically sealed can volumetric expansion, caused high pressure causes the energy piece of letting out of hermetically sealed can termination to rupture, and discharges carbon dioxide, suppresses spontaneous combustion in goaf.The present apparatus has the advantages that simple device, small volume, method are easily operated, and fireproof fire-extinguishing is better.
Description
Technical field
The invention belongs to underground coal mine spontaneous combustion diaster prevention and control technical field, and titanium dioxide is generated more particularly to a kind of autoreaction
The goaf fireproof fire-extinguishing device and method of carbon.
Background technology
The freely burning fire of coal is one of most important threat of coal production.In China emphasis colliery, about 50%
Mine exist spontaneous combustionof coal danger, the 94% of mine fire total degree is spontaneous combustionof coal, and wherein spontaneous combustion in goaf accounts for
60%.At present, the method for heterogeneous goaf fire preventing and treating is more, one of most widely used method, i.e., is injected to goaf lazy
Property gas, to reduce goaf oxygen concentration, reaches fireproof fire-extinguishing purpose.
Carbon dioxide as inert gas has absorption resistance oxygen, inerting drop during heterogeneous goaf fire hazard treating
The multi-effects such as oxygen, if directly pressure injection liquid carbon dioxide, is also acted on obvious absorbing and cooling temperature, for suppressing coal oxidation
The further development of spontaneous combustion has remarkable result.
The method that tradition injects carbon dioxide to goaf is broadly divided into two kinds：One kind is by liquid dioxy on ground
After changing carbon gasification, the mode that goaf is injected is delivered to by the road；Another kind is in underground that liquid carbon dioxide is direct
Inject the mode in goaf.Above two mode is by Pipeline transport, selects suitable liberation port position to be injected into mined out
Area.From links such as the preparation of carbon dioxide, storage, transport, releases, whole system is more complicated, and cost is higher.
Therefore, this invention address that research and develop goaf fireproof fire-extinguishing device and the side of a kind of autoreaction generation carbon dioxide of Simple portable
Method, it is intended to realize the convenience of spontaneous combustion in goaf, efficiently preventing and treating.
The content of the invention
The problem of existing for prior art, the present invention provide a kind of goaf fire prevention of autoreaction generation carbon dioxide and gone out
Fiery device and method.Its device mainly includes a kind of hermetically sealed can for sealing two kinds of reactants up for safekeeping, and reactant is by the common bullet of polyethylene octene
Property body thin slice and stephanoporate framework pad completely cut off, hermetically sealed can is arranged in goaf, when oxidization of remained coal spontaneous combustion reaches specified temp
When, polyethylene octene elastomer thin slice reaches molten condition, ruptures, and the endothermic reaction occurs for two kinds of reactant contacts, and
Great amount of carbon dioxide is generated, compared with 100~140 times of hermetically sealed can volumetric expansion, caused high pressure make it that letting out for hermetically sealed can termination can piece
Rupture, carbon dioxide is discharged, suppress spontaneous combustion in goaf.Goaf fireproof fire-extinguishing side is injected with conventional carbon dioxide
Method is compared, and has the advantages that device simple, small volume, easily operated, and fireproof fire-extinguishing is better.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide, including hermetically sealed can, completely cut off thin slice, porous bone
Frame pad, letting out can piece, hollow spiral cover, solid sodium bicarbonate and aqueous acetic acid；
Described hermetically sealed can is solid tank body and liquid tank body by isolation thin slice and the isolation of stephanoporate framework pad, solid tank body
With liquid tank body by being threadedly coupled；Described solid tank body is used to contain solid sodium bicarbonate, and described liquid tank body is used to contain
Fill aqueous acetic acid；
Described isolation thin slice is polyethylene octene elastomer (POE) thin slice that thickness is 2~3mm, stephanoporate framework pad
Piece is arranged at the both sides of isolation thin slice；
The termination of the remote isolation thin slice of described solid tank body, which is provided with, lets out energy piece, lets out energy piece and is fixed on by hollow spiral cover
Solid tank body termination.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described stephanoporate framework pad both sides are set
It is equipped with first pair of rubber sheet gasket, it is therefore intended that stephanoporate framework pad is fixed, plays sealing function.
First pair of described rubber sheet gasket is ring-shaped rubber pad.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, in molar ratio, sodium acid carbonate：Acetic acid=
1:(1~1.2), the mass concentration of acetic acid is 30~36% in aqueous acetic acid.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, the material of described solid tank body is steel
Pipe, steel pipe pipe thickness are 5~8mm, and the material of liquid tank body is steel and plastic composite material, and its outer layer is 2~3mm of thickness steel
Pipe, its internal layer are 3~5mm of thickness plastics, and layer materials are bonded by PUR.
Described plastics are one kind in igelite, vinyon, polypropylene plastics or polystyrene plastics.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described polyethylene octene elastomer
(POE) thin slice, it is polyethylene octene elastomer (POE) thin slice that melting temperature is 50~60 DEG C.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described stephanoporate framework pad, to hold
Thickness made of Compressive Strength >=1.6MPa PPR materials is 3~4mm stephanoporate framework pad, and its object is to will completely cut off thin slice
It is fixed, play skeletal support effect.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described lets out energy piece to bear limit pressure
Power lets out energy piece for 5~6MPa's, lets out energy piece both sides and is provided with second pair of rubber sheet gasket, plays sealing function.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described hermetically sealed can are cylinder, post
Body height 20~40cm, bottom 5~10cm of radius of circle.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, the chemical reaction that two kinds of reactants occur
For：
NaHCO3+CH3COOH=CH3COONa+CO2↑+H2O (endothermic reaction)
The present invention uses said apparatus, the method for realizing goaf fireproof fire-extinguishing, comprises the following steps：
Step 1：Assembling device
Into liquid tank body, injection prepares the aqueous acetic acid of concentration, with polyethylene octene elastomer thin slice with it is porous
Skeleton pad seals liquid tank body；Solid tank body is connected on liquid tank body using screw thread, loads solid to solid tank body
Sodium acid carbonate, it is eventually adding and lets out energy piece, and will let out energy piece with hollow spiral cover and fix, and solid tank body is sealed, assembles reflexive
The goaf fireproof fire-extinguishing device of carbon dioxide should be generated；
Step 2：Apparatus for placing
The autoreaction assembled is generated to the goaf fireproof fire-extinguishing device of carbon dioxide, through coal face hydraulic support
Between space, be arranged in the goaf at coal-face support rear portion；
Step 3：Fireproof fire-extinguishing process
Promoted with coal-face, the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide steps into goaf
Within the oxidation and spontaneous combustion band in deep, when Residual coal in goaf regenerator temperature at initial stage reaches 50~60 DEG C, device cohesion ethylene octene
Elastomer sheet reaches molten condition altogether, ruptures, and solid sodium bicarbonate and aqueous acetic acid contact, it is anti-that acutely chemistry occurs
Should, for the carbon dioxide volume of generation compared with 100~140 times of hermetically sealed can volumetric expansion, caused high pressure make it that letting out energy piece is cut
Cut through bad, discharge carbon dioxide, to reduce goaf oxygen concentration, and reaction reaches absorbing and cooling temperature effect, prevents from losing coal
Further oxidation and spontaneous combustion.
In described step two, an autoreaction generation titanium dioxide is arranged at interval of 1~2 coal face hydraulic support
The goaf fireproof fire-extinguishing device of carbon.
The goaf fireproof fire-extinguishing device and method of the autoreaction generation carbon dioxide of the present invention, its advantage are：
1. the goaf fireproof fire-extinguishing device of the autoreaction generation carbon dioxide of the present invention, small volume, convenience in transport is extremely
Underground coal mine, and goaf hydraulic support rear portion is arranged in without personnel into burying, directly it is thrown into the space for being caving bastard coal
.
2. the internal pressure of device is consistent with outside before the reaction, injection high-pressure liquid dioxy inside conventional apparatus is avoided
Change the potential safety hazard of carbon, security is higher.
3. reaction raw materials cost needed for device is cheap, it is convenient obtain, aqueous acetic acid is in faintly acid, to corrosion of metal
Property it is small, contacted with sodium acid carbonate, vigorous reaction can occur, it is rapid to discharge great amount of carbon dioxide gas, and course of reaction is heat absorption
Reaction, may also function as cooling-down effect.
After 4. device enters goaf, reacted losing coal high temperature dot, fireproof fire-extinguishing position is more accurate.For not sending out
The device of raw reaction, can be embedded in goaf for a long time, reach predetermined temperature once losing coal and oxidation occurring, you can reaction release two
Carbonoxide, the effect time limit is more long, can prevent the spontaneous combustion of remaining coal fire in goaf for a long time, better.
Brief description of the drawings
Fig. 1 is that the goaf fireproof fire-extinguishing apparatus structure decomposition of autoreaction generation carbon dioxide in the embodiment of the present invention 1 is shown
It is intended to；
Fig. 2 is that the goaf fireproof fire-extinguishing apparatus structure decomposition of autoreaction generation carbon dioxide in the embodiment of the present invention 2 is shown
It is intended to；
Fig. 3 is the assembling sealing schematic diagram of the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide of the present invention；
Fig. 4 is stephanoporate framework gasket construction schematic diagram.
In figure, 1, liquid tank body, 2, solid tank body, 3, polyethylene octene elastomer thin slice, 4, stephanoporate framework pad, 5,
Let out can piece, 6, hollow spiral cover, 7, the steel pipe at liquid tank body, 8, plastics, 9, the steel pipe at solid tank body, 10, first pairs of rubber
Pad, 11, the screw thread of liquid tank body and solid tank body, 12, the screw thread of solid tank body and hollow spiral cover, 13, second pairs of rubber blankets
Piece.
Embodiment
With reference to the accompanying drawings and examples, it is right with certain working face natural combustion of remaining coal preventing and treating of colliery 8105 for engineering background
The present invention is described in further detail.
Embodiment 1
A kind of goaf fire extinguishing device of autoreaction generation carbon dioxide, after its STRUCTURE DECOMPOSITION, schematic diagram is shown in Fig. 1, bag
Include：Hermetically sealed can, polyethylene octene elastomer thin slice 3, stephanoporate framework pad 4, let out energy piece 5, the fixed hollow spiral cover for letting out energy piece 5
6th, solid sodium bicarbonate and aqueous acetic acid.
Described hermetically sealed can completely cut off by polyethylene octene elastomer thin slice 3 and stephanoporate framework pad 4 for solid tank body 2 and
Liquid tank body 1, solid tank body 2 and liquid tank body 1 are connected by the screw thread 11 of liquid tank body and solid tank body；Described solid tank body
2 are used to contain solid sodium bicarbonate, and described liquid tank body 1 is used to contain aqueous acetic acid；
Described polyethylene octene elastomer thin slice 3, melting temperature are 50 DEG C, thickness 3mm；
Described stephanoporate framework pad 4, it is arranged at the both sides of polyethylene octene elastomer thin slice 3, it is therefore intended that will be poly-
Ethylene octene altogether fix by elastomer sheet 3, plays skeletal support effect, its material is bearing strength 1.6MPa PPR materials, thick
Spend for 3mm；Wherein, multiple circular holes are provided with stephanoporate framework pad, in the present embodiment, its structural representation is shown in Fig. 4.
The termination of the remote polyethylene octene elastomer thin slice 3 of described solid tank body 2, which is provided with, lets out energy piece 5, lets out energy
Piece 5 is fixed on the termination of solid tank body 2 by hollow spiral cover 6；The connected mode of hollow spiral cover 6 and solid tank body 2 be solid tank body and
The screw thread 12 of hollow spiral cover connects；
It is described let out can piece 5 can to bear limiting pressure be 6MPa.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, the described both sides of stephanoporate framework pad 4
It is provided with first pair of ring-shaped rubber pad 10, it is therefore intended that stephanoporate framework pad 4 is fixed, plays sealing function.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, in molar ratio, sodium acid carbonate：Acetic acid=
1:1, the mass concentration of acetic acid is 36% in aqueous acetic acid.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, the material of described solid tank body 2 are
Steel pipe 9 at solid tank body, steel pipe pipe thickness are 6mm, and the material of liquid tank body 1 is steel and plastic composite material, and its outer layer is thickness
The steel pipe 7 spent at 2mm liquid tank body, its internal layer are thickness 4mm polypropylene plastics 8, and layer materials are bonded by PUR.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described hermetically sealed can are cylinder, post
Body height 40cm, bottom radius of circle 7.5cm.
Described liquid tank body 1, height 30cm, volume about 5.25L.
Described solid tank body 2, height 10cm, volume about 1.75L.
The assembling sealing schematic diagram of the goaf fire extinguishing device of autoreaction generation carbon dioxide, is shown in Fig. 3.
The method that goaf fireproof fire-extinguishing is carried out using the goaf fire extinguishing device of above-mentioned autoreaction generation carbon dioxide,
Comprise the following steps：
Step 1：Assembling device
The aqueous acetic acid of concentration 36%, pouring quality about 5.5kg, by polyethylene are irrigated into the liquid tank body 1 of device
Octene elastomer thin slice 3 seals liquid tank body 1 with stephanoporate framework pad 4, then utilizes liquid tank body and solid tank body
Screw thread 11 is connected with solid tank body 2, and solid sodium bicarbonate, quality about 2.7kg are assembled into solid tank body 2；Finally by letting out energy piece 5
With hollow spiral cover 6, the sealing of solid tank body 2 is completed, assembles the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide；
Step 2：Apparatus for placing
The autoreaction assembled is generated to the goaf fireproof fire-extinguishing device of carbon dioxide, through coal face hydraulic support
Between space, be arranged in the goaf at coal-face support rear portion, at interval of 1 rack arrangement, one autoreaction generation
The goaf fireproof fire-extinguishing device of carbon dioxide.
Step 3：Fireproof fire-extinguishing process
Promoted with coal-face, the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide steps into goaf
Within the oxidation and spontaneous combustion band in deep, when Residual coal in goaf regenerator temperature at initial stage reaches 50 DEG C, the common bullet of tank body cohesion ethylene octene
Property body thin slice 3 reach molten condition, rupture, solid sodium bicarbonate and the contact of the aqueous acetic acid of concentration 36%, occur violent
Chemical reaction, compared with about 140 times of hermetically sealed can volumetric expansion, caused high pressure to let out energy piece 5 the carbon dioxide volume of generation
Destruction is sheared, discharges carbon dioxide, to reduce goaf oxygen concentration, and reaction reaches absorbing and cooling temperature effect, prevents
Lose the further oxidation and spontaneous combustion of coal.
Embodiment 2
A kind of goaf fire extinguishing device of autoreaction generation carbon dioxide, after its STRUCTURE DECOMPOSITION, schematic diagram is shown in Fig. 2, bag
Include：Hermetically sealed can, polyethylene octene elastomer thin slice 3, stephanoporate framework pad 4, let out energy piece 5, the fixed hollow spiral cover for letting out energy piece 5
6th, solid sodium bicarbonate and aqueous acetic acid.
Described hermetically sealed can completely cut off by polyethylene octene elastomer thin slice 3 and stephanoporate framework pad 4 for solid tank body 2 and
Liquid tank body 1, solid tank body 2 and liquid tank body 1 are connected by the screw thread 11 of liquid tank body and solid tank body；Described solid tank body
2 are used to contain solid sodium bicarbonate, and described liquid tank body 1 is used to contain aqueous acetic acid；
Described polyethylene octene elastomer thin slice, melting temperature are 60 DEG C, thickness 3mm；
Described stephanoporate framework pad 4, it is arranged at the both sides of polyethylene octene elastomer thin slice 3, it is therefore intended that will be poly-
Ethylene octene altogether elastomer sheet 3 fix, play skeletal support effect, its material be bearing strength 2MPa PPR materials, thickness
For 4mm；Wherein, multiple circular holes are provided with stephanoporate framework pad, in the present embodiment, its structural representation is shown in Fig. 4.
The termination of the remote polyethylene octene elastomer thin slice 3 of described solid tank body 2, which is provided with, lets out energy piece 5, lets out energy
Piece 5 is fixed on the termination of solid tank body 2 by hollow spiral cover 6；The connected mode of hollow spiral cover 6 and solid tank body 2 be solid tank body and
The screw thread 12 of hollow spiral cover connects；
It is described let out can piece 5 can to bear limiting pressure be 5MPa.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, the described both sides of stephanoporate framework pad 4
It is provided with first pair of ring-shaped rubber pad 10, it is therefore intended that stephanoporate framework pad 4 is fixed, plays sealing function.Described lets out
Energy piece both sides are provided with second pair of rubber sheet gasket, play sealing function.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, in molar ratio, sodium acid carbonate：Acetic acid=
1:1.2, the mass concentration of acetic acid is 30% in aqueous acetic acid.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, the material of described solid tank body 2 are
Steel pipe 9 at solid tank body, steel pipe pipe thickness are 8mm, and the material of liquid tank body 1 is steel and plastic composite material, and its outer layer is thickness
The steel pipe 7 spent at 3mm liquid tank body, its internal layer are thickness 5mm polypropylene plastics 8, and layer materials are bonded by PUR.
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described hermetically sealed can are cylinder, post
Body height 40cm, bottom radius of circle 10cm.
Described liquid tank body 1, height 30cm, volume about 9.3L.
Described solid tank body 2, height 10cm, volume about 3.1L.
The assembling sealing schematic diagram of the goaf fire extinguishing device of autoreaction generation carbon dioxide, is shown in Fig. 3.
The method that goaf fireproof fire-extinguishing is carried out using the goaf fire extinguishing device of above-mentioned autoreaction generation carbon dioxide,
Comprise the following steps：
Step 1：Assembling device
The aqueous acetic acid of concentration 30%, pouring quality about 9.6kg, by polyethylene are irrigated into the liquid tank body 1 of device
Octene elastomer thin slice 3 seals liquid tank body 1 with stephanoporate framework pad 4, then utilizes liquid tank body and solid tank body
Screw thread 11 is connected with solid tank body 2, and solid sodium bicarbonate, quality about 3.4kg are assembled into solid tank body 2；Finally by letting out energy piece 5
With hollow spiral cover 6, the sealing of solid tank body 2 is completed, assembles the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide；
Step 2：Apparatus for placing
The autoreaction assembled is generated to the goaf fireproof fire-extinguishing device of carbon dioxide, through coal face hydraulic support
Between space, be arranged in the goaf at coal-face support rear portion, at interval of 2 rack arrangements, one autoreaction generation
The goaf fireproof fire-extinguishing device of carbon dioxide.
Step 3：Fireproof fire-extinguishing process
Promoted with coal-face, the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide steps into goaf
Within the oxidation and spontaneous combustion band in deep, when Residual coal in goaf regenerator temperature at initial stage reaches 60 DEG C, the common bullet of tank body cohesion ethylene octene
Property body thin slice 3 reach molten condition, rupture, solid sodium bicarbonate and the contact of the aqueous acetic acid of concentration 30%, occur violent
Chemical reaction, compared with about 100 times of hermetically sealed can volumetric expansion, caused high pressure to let out energy piece 5 the carbon dioxide volume of generation
Destruction is sheared, discharges carbon dioxide, to reduce goaf oxygen concentration, and reaction reaches absorbing and cooling temperature effect, prevents
Lose the further oxidation and spontaneous combustion of coal.
Claims (10)
1. a kind of goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide, it is characterised in that the autoreaction generates dioxy
Changing the goaf fireproof fire-extinguishing device of carbon includes hermetically sealed can, completely cuts off thin slice, stephanoporate framework pad, lets out energy piece, hollow spiral cover, solid
Sodium acid carbonate and aqueous acetic acid；
Described hermetically sealed can is solid tank body and liquid tank body by isolation thin slice and the isolation of stephanoporate framework pad, solid tank body and liquid
Body tank body is by being threadedly coupled；Described solid tank body is used to contain solid sodium bicarbonate, and described liquid tank body is used to contain vinegar
Aqueous acid；
Described isolation thin slice is the polyethylene octene elastomer thin slice that thickness is 2~3mm, stephanoporate framework pad be arranged at every
The both sides of exhausted thin slice；
The termination of the remote isolation thin slice of described solid tank body, which is provided with, lets out energy piece, lets out energy piece and is fixed on solid by hollow spiral cover
Tank body termination.
2. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1, it is characterised in that described
Autoreaction generation carbon dioxide goaf fireproof fire-extinguishing device, described stephanoporate framework pad both sides are provided with first pair of rubber
Glue gasket, described first pair of rubber sheet gasket are ring-shaped rubber pad.
3. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1 or 2, it is characterised in that
In the goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, in molar ratio, sodium acid carbonate：Acetic acid=1:(1~
1.2), the mass concentration of acetic acid is 30~36% in aqueous acetic acid.
4. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1 or 2, it is characterised in that
The material of described solid tank body is steel pipe, and steel pipe pipe thickness is 5~8mm, and the material of liquid tank body is steel and plastic composite material,
Its outer layer is 2~3mm of thickness steel pipe, and its internal layer is 3~5mm of thickness plastics, and layer materials are bonded by PUR.
5. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1 or 2, it is characterised in that
Described polyethylene octene elastomer thin slice, it is the polyethylene octene elastomer thin slice that melting temperature is 50~60 DEG C.
6. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1 or 2, it is characterised in that
Described stephanoporate framework pad, be bearing strength >=1.6MPa PPR materials made of thickness be 3~4mm stephanoporate framework pad
Piece.
7. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1 or 2, it is characterised in that
It is described let out can piece be bear limiting pressure be 5~6MPa let out can piece, let out can piece both sides be provided with second pair of rubber sheet gasket.
8. the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide as claimed in claim 1 or 2, it is characterised in that
The goaf fireproof fire-extinguishing device of described autoreaction generation carbon dioxide, described hermetically sealed can are cylinder, height of column 20
~40cm, bottom 5~10cm of radius of circle.
A kind of 9. goaf fireproof fire-extinguishing method of autoreaction generation carbon dioxide, it is characterised in that use such as claim 1~
Device in 8 described in any one, comprises the following steps：
Step 1：Assembling device
Into liquid tank body, injection prepares the aqueous acetic acid of concentration, with polyethylene octene elastomer thin slice and stephanoporate framework
Pad seals liquid tank body；Solid tank body is connected on liquid tank body using screw thread, loads solid carbonic acid to solid tank body
Hydrogen sodium, it is eventually adding and lets out energy piece, and will let out energy piece with hollow spiral cover and fix, and solid tank body is sealed, assembles autoreaction life
Into the goaf fireproof fire-extinguishing device of carbon dioxide；
Step 2：Apparatus for placing
The autoreaction assembled is generated to the goaf fireproof fire-extinguishing device of carbon dioxide, through between coal face hydraulic support
Space, be arranged in the goaf at coal-face support rear portion；
Step 3：Fireproof fire-extinguishing process
Promoted with coal-face, the goaf fireproof fire-extinguishing device of autoreaction generation carbon dioxide steps into goaf deep
Oxidation and spontaneous combustion band within, when Residual coal in goaf regenerator temperature at initial stage reaches 50~60 DEG C, device cohesion ethylene octene altogether bullet
Property body thin slice reach molten condition, rupture, solid sodium bicarbonate and aqueous acetic acid contact, occur acutely chemical reaction,
For the carbon dioxide volume of generation compared with 100~140 times of hermetically sealed can volumetric expansion, caused high pressure make it that letting out energy piece is sheared brokenly
It is bad, carbon dioxide is discharged, reduces goaf oxygen concentration, and reaction reaches absorbing and cooling temperature effect, prevents that something lost coal is further
Oxidation and spontaneous combustion.
10. the goaf fireproof fire-extinguishing method of autoreaction generation carbon dioxide as claimed in claim 9, it is characterised in that institute
In the step of stating two, the goaf of an autoreaction generation carbon dioxide is arranged at interval of 1~2 coal face hydraulic support
Fireproof fire-extinguishing device.
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| CN109865224A (en) * | 2018-12-11 | 2019-06-11 | 珠海格力电器股份有限公司 | Electric appliance box fireproof bag and electric appliance box |
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