CN116943089A - Flameless hot aerosol fire extinguishing agent and preparation method thereof - Google Patents
Flameless hot aerosol fire extinguishing agent and preparation method thereof Download PDFInfo
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- CN116943089A CN116943089A CN202310697988.0A CN202310697988A CN116943089A CN 116943089 A CN116943089 A CN 116943089A CN 202310697988 A CN202310697988 A CN 202310697988A CN 116943089 A CN116943089 A CN 116943089A
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- fire extinguishing
- aerosol fire
- flameless
- extinguishing agent
- agent
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- 239000000443 aerosol Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 49
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 21
- 239000005011 phenolic resin Substances 0.000 claims abstract description 21
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000654 additive Substances 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 239000007800 oxidant agent Substances 0.000 claims abstract description 8
- IWZKICVEHNUQTL-UHFFFAOYSA-M potassium hydrogen phthalate Chemical compound [K+].OC(=O)C1=CC=CC=C1C([O-])=O IWZKICVEHNUQTL-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- AVTYONGGKAJVTE-OLXYHTOASA-L potassium L-tartrate Chemical compound [K+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O AVTYONGGKAJVTE-OLXYHTOASA-L 0.000 claims abstract description 7
- 239000001472 potassium tartrate Substances 0.000 claims abstract description 7
- 229940111695 potassium tartrate Drugs 0.000 claims abstract description 7
- 235000011005 potassium tartrates Nutrition 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 38
- 238000002156 mixing Methods 0.000 claims description 24
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 11
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 10
- 229920002472 Starch Polymers 0.000 claims description 9
- 239000008107 starch Substances 0.000 claims description 9
- 235000019698 starch Nutrition 0.000 claims description 9
- 239000005995 Aluminium silicate Substances 0.000 claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004323 potassium nitrate Substances 0.000 claims description 8
- 235000010333 potassium nitrate Nutrition 0.000 claims description 8
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 8
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004317 sodium nitrate Substances 0.000 claims description 5
- 235000010344 sodium nitrate Nutrition 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 4
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- ULRPISSMEBPJLN-UHFFFAOYSA-N 2h-tetrazol-5-amine Chemical compound NC1=NN=NN1 ULRPISSMEBPJLN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 4
- 239000000843 powder Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004220 aggregation Methods 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002826 coolant Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention provides a flameless hot aerosol fire extinguishing agent and a preparation method thereof, wherein the flameless hot aerosol fire extinguishing agent comprises the following components in percentage by mass: 50-70% of oxidant, 5-30% of reducing agent, 5-20% of adhesive and 0.5-5% of additive; wherein the additive is one or more of phenolic resin, potassium oxalate, potassium hydrogen phthalate and potassium tartrate. The adhesive added in the invention plays a role in bonding all components and also has the effects of cooling and stabilizing combustion; however, after the binder is added, aggregation easily occurs in the combustion process of the hot aerosol fire extinguishing agent, and one or more of phenolic resin, potassium oxalate, potassium hydrogen phthalate and potassium tartrate are adopted as additives, and a small amount of the additives are added into the fire extinguishing agent, so that the binder components are not easy to quickly aggregate, the internal temperature distribution is more uniform when the agent is combusted, the effect of combusting flameless is realized, and the uniform release of the fire extinguishing medium is ensured.
Description
Technical Field
The invention belongs to the technical field of fire extinguishment, and particularly relates to a flameless hot aerosol fire extinguishing agent and a preparation method thereof.
Background
Hot aerosol fire extinguishing technology has been matured for use in the fire fighting field, achieving its value in a variety of fire extinguishing products. The existing hot aerosol fire extinguishing device mainly comprises an aerosol fire extinguishing agent, a coolant and the like, the flame-extinguishing and cooling difficulty is high in the using process of the device, and part of products still have flame to emit, so that the hot aerosol fire extinguishing device is not beneficial to the use of the hot aerosol fire extinguishing technology in flame sensitive scenes.
In addition, the volume of the existing device is larger due to the addition of a large amount of coolant, which also puts higher demands on the installation, maintenance and use of the device.
Disclosure of Invention
The invention provides a flameless hot aerosol fire extinguishing agent and a preparation method thereof, which can realize flameless production of agent combustion, thoroughly avoid the use of coolant, help to reduce the structure and volume of the fire extinguishing device, reduce the device cost and promote the application of the device in flame sensitive scenes.
The technical scheme of the invention is that the flameless hot aerosol fire extinguishing agent comprises the following components in percentage by mass: 50-70% of oxidant, 5-30% of reducing agent, 5-20% of adhesive and 0.5-5% of additive; wherein the additive is one or more of phenolic resin, potassium oxalate, potassium hydrogen phthalate and potassium tartrate.
Further, the oxidant is one or more of potassium nitrate, strontium nitrate, sodium nitrate or magnesium nitrate.
Further, the reducing agent is one or more of starch, wood flour, charcoal, cellulose, urea, nitroguanidine, melamine, dicyandiamide and 5-aminotetrazole.
Further, the adhesive is one or more of kaolin, pottery clay, bentonite and diatomite.
Further preferably, the additive is phenolic resin, and the addition amount is 0.5-2%.
The invention also relates to a preparation method of the flameless aerosol fire extinguishing agent, which comprises the following steps:
s1, sieving an oxidant, a reducing agent, an adhesive and an additive respectively, and mixing in proportion;
s2, adding an ethanol solution into the mixture, and uniformly mixing;
and S3, granulating the material obtained in the step S2, and drying to obtain the flameless hot aerosol fire extinguishing agent.
Further, the screen mesh in the step S1 is a 100-120 mesh screen mesh.
Further, the addition amount of the ethanol solution in the S2 is 15-30% of the total mass of the mixture; the mass concentration of the ethanol solution is 40-60%.
Further, in the step S3, a screen is adopted for granulation, and the aperture of the screen is 14-20 meshes.
Further, the drying temperature is 40-60 ℃.
The invention has the following beneficial effects:
the adhesive added in the invention plays a role in bonding all components and also has the effects of cooling and stabilizing combustion; however, after the binder is added, aggregation is easy to occur in the combustion process of the hot aerosol fire extinguishing agent, so that the flameless effect cannot be achieved due to the fact that the local temperature is too high when the agent is combusted, a hard layer which prevents the fire extinguishing medium from being sprayed out is formed, and the fire extinguishing effect of the hot aerosol fire extinguishing agent is affected. The inventor researches and discovers that the phenolic resin, the potassium oxalate, the potassium hydrogen phthalate and/or the potassium tartrate are adopted as additives, and a small amount of the additives are added into the fire extinguishing agent, so that the combustion reaction is accelerated, the adhesive components are not easy to gather rapidly, the internal temperature distribution is more uniform when the agent is combusted, the effect of flame-free combustion is realized, and the uniform release of the fire extinguishing medium is ensured. In particular, phenolic resin, although it can be used as a refractory material, can burn when it exists together with a large amount of oxidizing agent, and the combustion is exothermic reaction, which is favorable for raising the reaction temperature of the chemical agent, thereby accelerating the chemical agent combustion. Meanwhile, the combustion of the gas can generate gases such as carbon dioxide, and the gases can form gas channels in the rapid escape process to prevent the adhesive components from gathering. The addition of appropriate amounts of potassium oxalate, potassium hydrogen phthalate and/or potassium tartrate may act similarly to phenolic resins.
The hot aerosol fire extinguishing agent reported at present mainly uses combustible high molecular compounds containing carbon, hydrogen and oxygen elements such as resin, shellac, cellulose derivatives and the like as adhesives, and the combustible high molecular compounds are easy to generate combustible gases such as carbon monoxide, hydrogen and the like when burnt, and a large amount of combustible gases form a flame layer to represent combustion flames. The invention uses the non-combustible substance as the adhesive, not only reduces the usage amount of the adhesive capable of generating the combustible gas, but also prevents the combustible gas generated by combustion from being blocked in the escaping process, thus preventing flame from escaping, and further achieving the flameless combustion effect. The phenolic resin can ensure flameless combustion effect of the agent and even release of the fire extinguishing medium by using a small amount in the presence of the non-combustible adhesive.
Drawings
FIG. 1 is a photograph of the hot aerosol fire extinguishing agent of example 1 during the combustion process.
FIG. 2 is a photograph of comparative example 2 after combustion of a hot aerosol fire suppressant.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
Example 1
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 60% of potassium nitrate, 29% of starch, 10% of kaolin and 1% of phenolic resin through a 100-mesh screen according to mass percentage, further stirring and mixing the mixture, adding 15% of ethanol solution (40% of ethanol mass percentage) into the mixture, fully stirring and uniformly mixing the mixture, granulating the mixture through a 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Example 2
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 65% of strontium nitrate, 18% of melamine, 15% of clay and 2% of potassium hydrogen phthalate through a 100-mesh screen according to mass percentage, further stirring and mixing the mixture, adding 20% of ethanol solution (the mass percentage of ethanol is 40%) into the mixture, fully stirring and uniformly mixing the mixture, granulating the mixture through the 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Example 3
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 55% magnesium nitrate, 25% 5-aminotetrazole, 17% bentonite and 3% potassium tartrate through a 100-mesh screen according to mass percentage, further stirring and mixing the mixture, adding 20% ethanol solution (the mass percentage of ethanol is 50%) into the mixture, fully stirring and uniformly mixing the mixture, granulating the mixture through the 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Example 4
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 50% sodium nitrate, 30% dicyandiamide, 15% clay and 5% potassium oxalate through a 100-mesh screen according to mass percentage, further stirring and mixing the mixture, adding 30% ethanol solution (the mass percentage of ethanol is 50%) into the mixture, fully stirring and uniformly mixing the mixture, granulating the mixture through a 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Example 5
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 70% of strontium nitrate, 5% of charcoal, 20% of kaolin and 5% of phenolic resin through a 100-mesh screen according to mass percentage, further stirring and mixing the mixture, adding 20% of ethanol solution (the mass percentage of ethanol is 60%) into the mixture, fully stirring and uniformly mixing the mixture, granulating the mixture through the 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Example 6
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 50% sodium nitrate, 30% dicyandiamide, 15% bentonite and 5% phenolic resin through a 100-mesh screen according to mass percentage, adding 20% ethanol solution (60% of ethanol mass percentage) into the mixture after further stirring and mixing, fully stirring to uniformly mix the mixture, granulating the mixture through the 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Example 7
7-1: based on example 1, the only difference is that the starch is 25% and the phenolic resin is 5%.
7-2: based on example 1, the only difference is that the starch is 27% and the phenolic resin is 3%.
7-3: based on example 1, the only difference is that the phenolic resin is replaced by potassium hydrogen phthalate.
Example 8
The preparation of the flameless hot aerosol fire extinguishing agent comprises the steps of primarily mixing 30% of sodium nitrate, 30% of potassium nitrate, 10% of charcoal, 15% of urea, 5% of clay, 8% of kaolin and 2% of phenolic resin through a 100-mesh screen, further stirring and mixing the mixture, adding 20% of ethanol solution (60% of ethanol mass fraction), fully stirring and uniformly mixing the mixture, granulating the mixture through a 20-mesh screen, and drying the mixture at 50 ℃ to obtain the hot aerosol fire extinguishing agent.
Comparative example 1
Based on example 1, the only difference is that the raw materials are 60% potassium nitrate, 29% starch, 10% epoxy resin, 1% phenolic resin.
Comparative example 2
Based on example 1, the only difference is that the raw materials are 60% potassium nitrate, 30% starch, 10% kaolin, no phenolic resin is added.
Comparative example 3
Based on example 1, the only difference is that the raw materials are 60% potassium nitrate, 29.9% starch, 10% kaolin, 0.1% phenolic resin.
Comparative example 4
Based on example 1, the only differences were 58% potassium nitrate, 28% starch, 8% kaolin, 6% phenolic resin.
The hot aerosol fire extinguishing agent obtained in the above examples and comparative examples was pressed into cylindrical grains of 32mm diameter under a pressure of 5MPa for combustion test, and the test results are shown in table 1 below.
TABLE 1
The above table shows the combustion conditions of the hot aerosol fire extinguishing agent prepared in each example, compared with the existing hot aerosol fire extinguishing agent, the hot aerosol fire extinguishing agent has obvious visible combustion flame when in combustion, and the combustion temperature is even more than 800 ℃, and the hot aerosol fire extinguishing agent prepared in the invention has the combustion temperature below 400 ℃ and has no obvious flame phenomenon when in combustion.
The photograph of the hot aerosol fire extinguishing agent of example 1 during the burning process is shown in fig. 1, and fig. 2 is a photograph of the hot aerosol fire extinguishing agent of comparative example 2 after burning. Compared with the combustion residues without additives, the aggregation phenomenon of the residues after the additives are added is obviously improved, which is favorable for the uniform release of the fire extinguishing medium and plays an important role in improving the fire extinguishing capability.
The foregoing embodiments are merely illustrative of the technical idea and features of the present invention, and the present invention is not limited to the preferred embodiments. Within the technical scope of the present disclosure, the technical solution and the invention concept according to the present disclosure are equivalent to or improved from the above description, and all the equivalent changes or modifications are included in the scope of the present disclosure.
Claims (10)
1. The flameless hot aerosol fire extinguishing agent is characterized by comprising the following components in percentage by mass: 50-70% of oxidant, 5-30% of reducing agent, 5-20% of adhesive and 0.5-5% of additive; wherein the additive is one or more of phenolic resin, potassium oxalate, potassium hydrogen phthalate and potassium tartrate.
2. The flameless aerosol fire suppression agent of claim 1, wherein: the oxidant is one or more of potassium nitrate, strontium nitrate, sodium nitrate or magnesium nitrate.
3. The flameless aerosol fire suppression agent of claim 1, wherein: the reducing agent is one or more of starch, wood powder, charcoal, cellulose, urea, nitroguanidine, melamine, dicyandiamide and 5-aminotetrazole.
4. The flameless aerosol fire suppression agent of claim 1, wherein: the adhesive is one or more of kaolin, pottery clay and bentonite.
5. The flameless aerosol fire suppression agent of claim 1, wherein: the additive is phenolic resin, and the addition amount is 0.5-2%.
6. The method for preparing the flameless hot aerosol fire extinguishing agent according to any one of claims 1 to 5, which is characterized by comprising the following steps:
s1, sieving an oxidant, a reducing agent, an adhesive and an additive respectively, and mixing in proportion;
s2, adding an ethanol solution into the mixture, and uniformly mixing;
and S3, granulating the material obtained in the step S2, and drying to obtain the flameless hot aerosol fire extinguishing agent.
7. The method of manufacturing according to claim 6, wherein: the screen mesh in the S1 is a 100-120 mesh screen mesh.
8. The method of manufacturing according to claim 6, wherein: the addition amount of the ethanol solution in the S2 is 15-30% of the total mass of the mixture; the mass concentration of the ethanol solution is 40-60%.
9. The method of manufacturing according to claim 6, wherein: and S3, granulating by adopting a screen, wherein the aperture of the screen is 14-20 meshes.
10. The preparation method according to any one of claims 6 to 9, characterized by: the drying temperature is 40-60 ℃.
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| CN116943089B CN116943089B (en) | 2024-05-28 |
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