CN102500086A - Fire-extinguishing agent and preparation method thereof - Google Patents
Fire-extinguishing agent and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a fire-extinguishing agent. The fire-extinguishing agent is prepared by uniformly mixing hydrophilic solid powder and water or an aqueous solution, adding hydrophobic solid particles and then carrying out mixing and dispersing, wherein the hydrophilic solid powder is one or more of magnesium hydroxide powder, aluminum oxide powder, aluminum hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, zinc borate powder, montmorillonoid powder, hydrotalcite powder, hydrotalcite like compound powder, fly ash powder, diatomite powder, mica powder and attapulgite powder. The fire-extinguishing agent disclosed by the invention can exert stifling, cooling, separating and chemically restraining functions at the same time, and has the advantages of no toxicity, small environment pollution, high fire extinguishing efficiency and the like. According to the fire-extinguishing agent disclosed by the invention, the hydrophilic solid powder with a certain fire extinguishing performance and smaller solubility in water is added into a water phase so as to reduce the using amount of water-soluble substances, thus the cost of the fire-extinguishing agent is reduced when higher fire-extinguishing efficiency is kept, and the fire-extinguishing agent is easier to clean after being used for extinguishing fire.
Description
Technical field
The invention belongs to chemical technology field, be specifically related to a kind of extinguishing chemical and preparation method thereof.
Background technology
Water is as the extinguishing chemical that the most often uses, and its thermal characteristics makes it can be used for the fire extinguishing procedure of most of type fire.Yet because the flowability of water is very strong, under normal conditions, most of water that fire extinguishing is used also has little time to work just to have run off, and this has just caused the utilization rate of water fire extinguishing lower, and is easy to cause secondary loss.Chinese patent 201010605644.5 provides a kind of extinguishing chemical; This extinguishing chemical is through being strapped in water in the solid housing; Effectively limited flowing freely of water, had certain accumulation property, when reducing foamite amount, improving the fire extinguishing effect; The secondary disaster that water causes when significantly having reduced fire extinguishing; But the extinguishing chemical in the above-mentioned patent only with the aqueous solution with certain extinguishing property as base stock, and use solid hydrophilic powder as active principle with certain extinguishing property, cost is higher.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to above-mentioned prior art, provides a kind of nontoxic, and environmental pollution is little, the extinguishing chemical that fire-fighting efficiency is high.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of extinguishing chemical, it is characterized in that, and add the dispersion of hydrophobic solid mix particles again after this extinguishing chemical is stirred by solid hydrophilic powder and the water or the aqueous solution and form; Said solid hydrophilic powder is one or more in magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder and the attapulgite end; The mass concentration of solute is not more than 10% in the said aqueous solution; Solute is a kind of in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, ammonium dihydrogen phosphate (ADP), NaOH, magnesium chloride, calcium chloride, potassium sulfate, ammonium citrate, ammonium sulfate and the APP in the said aqueous solution; Perhaps being at least two kinds in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, NaOH and the APP, perhaps is one or more the mixture in ammonium dihydrogen phosphate (ADP) and/or ammonium sulfate and potassium chloride, sodium chloride, magnesium chloride, calcium chloride and the APP; Said hydrophobic solid particle is the solids after hydrophobically modified; Said solids are one or more in magnesium hydroxide particles, silicon dioxide granule, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle and the zeolite particles; The mass ratio of said solid hydrophilic powder and the water or the aqueous solution is 0.01～0.25: 1; The mass ratio of the said water or the aqueous solution and hydrophobic solid particle is 1～20: 1.
Above-mentioned a kind of extinguishing chemical, the contact angle of said hydrophobic solid particle are not less than 105 °.
The present invention also provides a kind of preparation method of extinguishing chemical; It is characterized in that; This method is: earlier that solid hydrophilic powder and water or aqueous solution dispersed with stirring is even; In finely dispersed mixture, adding the hydrophobic solid particle then, is to stir 5 seconds～450 seconds under 500 rev/mins～9000 rev/mins the condition in stir speed (S.S.), obtains extinguishing chemical.
Solute and solid hydrophilic powder that violent chemical reaction can take place among the present invention do not advise using simultaneously.
The present invention compared with prior art has the following advantages: extinguishing chemical of the present invention bring into play simultaneously suffocate, cooling, isolation and Chemical Inhibition effect, have nontoxicly, environmental pollution is little, the fire-fighting efficiency advantages of higher.With application number is that 201010605644.5 Chinese patent is compared; Since aqueous phase added have certain extinguishing property but in water the less solid hydrophilic powder of solubility; Reduced the consumption of water-soluble substances; When keeping higher fire-fighting efficiency, reduced the cost of extinguishing chemical, also be easier to cleaning after the fire extinguishing.
Through embodiment technical scheme of the present invention is done further detailed description below.
The specific embodiment
The hydrophobically modified method of solids of the present invention improves method of modifying commonly used such as inorganic solid particle hydrophobicity for adopting silane coupler, titanate coupling agent or LCFA.
Embodiment 1
With stirring in 10 gram magnesium hydroxide powders addings, the 1000 gram water; Adding 1000 gram contact angles then is 105 ° hydrophobic silica particle (through the silicon dioxide granule of titanate coupling agent hydrophobically modified); With 9000 rev/mins speed dispersed with stirring 5 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 10 gram sodium acid carbonates make, but cost is low by 15%, also is easier to cleaning after the fire extinguishing.
Embodiment 2
Present embodiment is identical with embodiment 1; Wherein difference is: used solid hydrophilic powder is alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder or attapulgite end, perhaps is at least two kinds in magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder and the attapulgite end; Used solids are at least two kinds in magnesium hydroxide particles, silicon dioxide granule, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle and the zeolite particles, perhaps are magnesium hydroxide particles, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle or zeolite particles.
Embodiment 3
With stirring in 250 gram magnesium carbonate powder addings, the 1000 gram water; Adding 50 gram contact angles then is 110 ° hydrophobic silica particle (through the silicon dioxide granule of titanate coupling agent hydrophobically modified); With 500 rev/mins speed dispersed with stirring 450 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 200 gram sodium acid carbonates make, but cost is low by 10%, also is easier to cleaning after the fire extinguishing.
Embodiment 4
Present embodiment is identical with embodiment 3; Wherein difference is: used solid hydrophilic powder is magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder or attapulgite end, perhaps is at least two kinds in magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder and the attapulgite end; Used solids are at least two kinds in magnesium hydroxide particles, silicon dioxide granule, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle and the zeolite particles, perhaps are magnesium hydroxide particles, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle or zeolite particles.
Embodiment 5
It is to stir in 10% the sodium bicarbonate aqueous solution that 100 gram magnesium carbonate powder are added 1000 gram mass concentration; Adding 100 gram contact angles then is 120 ° hydrophobic silica particle (through the silicon dioxide granule of titanate coupling agent hydrophobically modified); With 2000 rev/mins speed dispersed with stirring 100 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 200 gram sodium acid carbonates make, but cost is low by 6%, also is easier to cleaning after the fire extinguishing.
Embodiment 6
Present embodiment is identical with embodiment 5; Wherein difference is: used solid hydrophilic powder is magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder or attapulgite end, perhaps is at least two kinds in magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder and the attapulgite end; Used solids are at least two kinds in magnesium hydroxide particles, silicon dioxide granule, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle and the zeolite particles, perhaps are magnesium hydroxide particles, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle or zeolite particles; Solute is a kind of in saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, ammonium dihydrogen phosphate (ADP), NaOH, magnesium chloride, calcium chloride, potassium sulfate, ammonium citrate, ammonium sulfate and the APP in the used aqueous solution; Perhaps be at least two kinds in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, NaOH and the APP; Perhaps be one or more the mixture in ammonium dihydrogen phosphate (ADP) and/or ammonium sulfate and potassium chloride, sodium chloride, magnesium chloride, calcium chloride and the APP, solute and pressed powder that violent chemical reaction wherein can take place do not advise using simultaneously.
Embodiment 7
It is to stir in 8% the ammonium sulfate solution that 120 gram alumina powders are added 1000 gram mass concentration; Adding 80 gram contact angles then is 105 ° hydrophobic silica particle (through the silicon dioxide granule of titanate coupling agent hydrophobically modified); With 3000 rev/mins speed dispersed with stirring 120 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 150 gram ammonium dihydrogen phosphate (ADP)s make, but cost is low by 10%, also is easier to cleaning after the fire extinguishing.
Embodiment 8
Present embodiment is identical with embodiment 7; Wherein difference is: used solid hydrophilic powder is magnesium hydroxide powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder or attapulgite end, perhaps is at least two kinds in magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder and the attapulgite end; Used solids are at least two kinds in magnesium hydroxide particles, silicon dioxide granule, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle and the zeolite particles, perhaps are magnesium hydroxide particles, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle or zeolite particles; Solute is a kind of in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, ammonium dihydrogen phosphate (ADP), NaOH, magnesium chloride, calcium chloride, potassium sulfate, ammonium citrate and the APP in the used aqueous solution; Perhaps be at least two kinds in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, NaOH and the APP; Perhaps be one or more the mixture in ammonium dihydrogen phosphate (ADP) and/or ammonium sulfate and potassium chloride, sodium chloride, magnesium chloride, calcium chloride and the APP, solute and pressed powder that violent chemical reaction wherein can take place do not advise using simultaneously.
Embodiment 9
With stirring in 100 gram alumina powders and 50 gram magnesium hydroxide powders addings, the 1000 gram water; Adding 50 gram contact angles then and be 105 ° hydrophobic silica particle (through the silicon dioxide granule of titanate coupling agent hydrophobically modified) and 50, to restrain contact angles be 110 ° hydrophobicity calcium carbonate particle (through the calcium carbonate particle of stearic acid hydrophobically modified); With 1000 rev/mins speed dispersed with stirring 300 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 100 gram ammonium dihydrogen phosphate (ADP)s make, but cost is low by 15%, also is easier to cleaning after the fire extinguishing.
Embodiment 10
Stir in the mixed aqueous solution with 100 gram aluminium-hydroxide powders and 100 gram Firebrake ZB powder adding 1000 gram ammonium dihydrogen phosphate (ADP)s (mass concentration is 5%) and ammonium sulfate (mass concentration is 3%); Adding 50 gram contact angles then and be 130 ° hydrophobicity flyash particle (through the flyash particle of silane coupler hydrophobically modified) and 20, to restrain contact angles be 128 ° hydrophobicity TiO 2 particles (through the TiO 2 particles of silane coupler hydrophobically modified); With 5000 rev/mins speed dispersed with stirring 100 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 100 gram ammonium dihydrogen phosphate (ADP)s make, but cost is low by 15%, also is easier to cleaning after the fire extinguishing.
Embodiment 11
Stir in the mixed aqueous solution with 10 gram alumina powders, 50 gram imvite powder and 10 gram Firebrake ZB powder adding 1000 gram magnesium chlorides (mass concentration is 6%) and calcium chloride (mass concentration is 1%); Adding 500 gram contact angles then and be 110 ° hydrophobicity aluminum hydroxide particles (through the aluminum hydroxide particles of silane coupler hydrophobically modified), hydrophobicity Firebrake ZB particle (through the Firebrake ZB particle of silane coupler hydrophobically modified) and 10 that 10 gram contact angles are 135 °, to restrain contact angles be 122 ° hydrophobicity hydrotalcite particle (through the hydrotalcite particle of silane coupler hydrophobically modified); With 5000 rev/mins speed dispersed with stirring 100 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 150 gram ammonium dihydrogen phosphate (ADP)s make, but cost is low by 12%, also is easier to cleaning after the fire extinguishing.
Embodiment 12
With stirring in 10 gram aluminium-hydroxide powders, 50 gram imvite powder and 10 gram Firebrake ZB powder addings, the 1000 gram water; Adding 500 gram contact angles then and be 110 ° hydrophobicity aluminum hydroxide particles (through the aluminum hydroxide particles of silane coupler hydrophobically modified), hydrophobicity Firebrake ZB particle (through the Firebrake ZB particle of silane coupler hydrophobically modified) and 10 that 10 gram contact angles are 135 °, to restrain contact angles be 122 ° hydrophobicity hydrotalcite particle (through the hydrotalcite particle of silane coupler hydrophobically modified); With 5000 rev/mins speed dispersed with stirring 100 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 120 gram ammonium dihydrogen phosphate (ADP)s make, but cost is low by 8%, also is easier to cleaning after the fire extinguishing.
Embodiment 13
With stirring in 100 gram aluminium-hydroxide powders and 100 gram Firebrake ZB powder addings, the 1000 gram water; Adding 50 gram contact angles then and be 130 ° hydrophobicity flyash particle (through the flyash particle of silane coupler hydrophobically modified) and 20, to restrain contact angles be 128 ° hydrophobicity TiO 2 particles (through the TiO 2 particles of silane coupler hydrophobically modified); With 5000 rev/mins speed dispersed with stirring 100 seconds, obtain extinguishing chemical.
The extinguishing property of the extinguishing chemical of present embodiment preparation is suitable with the extinguishing chemical performance that the 1000 gram water that contain 100 gram ammonium dihydrogen phosphate (ADP)s make, but cost is low by 16%, also is easier to cleaning after the fire extinguishing.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (3)
1. an extinguishing chemical is characterized in that, adds the hydrophobic solid mix particles again after this extinguishing chemical is stirred by solid hydrophilic powder and water or the aqueous solution and disperses to form; Said solid hydrophilic powder is one or more in magnesium hydroxide powder, alumina powder, aluminium-hydroxide powder, magnesium carbonate powder, calcium carbonate powder, calcium hydroxide powder, Firebrake ZB powder, imvite powder, hydrotalcite powder, houghite powder, flyash powder, diatomite powder, mica powder and the attapulgite end; The mass concentration of solute is not more than 10% in the said aqueous solution; Solute is a kind of in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, ammonium dihydrogen phosphate (ADP), NaOH, magnesium chloride, calcium chloride, potassium sulfate, ammonium citrate, ammonium sulfate and the APP in the said aqueous solution; Perhaps being at least two kinds in sodium acid carbonate, saleratus, potassium chloride, sodium chloride, potash, carbonic hydroammonium, urea, NaOH and the APP, perhaps is one or more the mixture in ammonium dihydrogen phosphate (ADP) and/or ammonium sulfate and potassium chloride, sodium chloride, magnesium chloride, calcium chloride and the APP; Said hydrophobic solid particle is the solids after hydrophobically modified; Said solids are one or more in magnesium hydroxide particles, silicon dioxide granule, calcium carbonate particle, talcum particle, aluminium oxide particles, aluminum hydroxide particles, Firebrake ZB particle, zinc oxide particle, di-iron trioxide particle, TiO 2 particles, imvite particle, hydrotalcite particle, houghite particle, flyash particle, diatomaceous earth particle, mica particle, concavo-convex excellent particle and the zeolite particles; The mass ratio of said solid hydrophilic powder and the water or the aqueous solution is 0.01～0.25: 1; The mass ratio of the said water or the aqueous solution and hydrophobic solid particle is 1～20: 1.
2. a kind of extinguishing chemical according to claim 1 is characterized in that, the contact angle of said hydrophobic solid particle is not less than 105 °.
3. one kind prepares the method for extinguishing chemical according to claim 1; It is characterized in that; This method is: earlier that solid hydrophilic powder and water or aqueous solution dispersed with stirring is even; In finely dispersed mixture, adding the hydrophobic solid particle then, is to stir 5 seconds～450 seconds under 500 rev/mins～9000 rev/mins the condition in stir speed (S.S.), obtains extinguishing chemical.
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| EP2201985A2 (en) * | 2007-06-29 | 2010-06-30 | Kidde IP Holdings Limited | Fire fighting foaming compositions |
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| CN1849420A (en) * | 2003-06-27 | 2006-10-18 | 罗狄亚化学公司 | Yarns, fibres and filaments made of synthetic, flame-resistant material |
| EP2201985A2 (en) * | 2007-06-29 | 2010-06-30 | Kidde IP Holdings Limited | Fire fighting foaming compositions |
| CN102058951A (en) * | 2010-12-25 | 2011-05-18 | 西安科技大学 | Extinguishing agent |
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