WO2011054345A2 - Produit d'extinction d'incendie, notamment mélanges de poudres sèches, procédé de production et utilisation - Google Patents
Produit d'extinction d'incendie, notamment mélanges de poudres sèches, procédé de production et utilisation Download PDFInfo
- Publication number
- WO2011054345A2 WO2011054345A2 PCT/DE2010/001290 DE2010001290W WO2011054345A2 WO 2011054345 A2 WO2011054345 A2 WO 2011054345A2 DE 2010001290 W DE2010001290 W DE 2010001290W WO 2011054345 A2 WO2011054345 A2 WO 2011054345A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- extinguishing agent
- fire extinguishing
- sodium
- fire
- ammonium
- Prior art date
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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
- A62D1/0007—Solid extinguishing substances
- A62D1/0014—Powders; Granules
Definitions
- Fire-extinguishing compositions in particular dry powder mixtures, process for their preparation and use
- the present invention relates to a fire extinguishing agent, in particular dry powder mixtures, processes for their preparation and use.
- GB 783 656 discloses a dry powder mixture comprising 35 to 55% by weight of ammonium sulphate, 30 to 50% by weight of sodium bicarbonate and 7 to 13% by weight of diammonium phosphate and minor constituents of soapstone, silica, talc and (metal) stearates ( Page 1 column 1, lines 34 to 45).
- the particle size of the sulfate and phosphate compounds is in the range of 211 pm.
- DE 1,941,060 discloses a powdered fire extinguishing composition consisting of MONNEX, a mixture of urea and urea derivatives, as well as other additives such as e.g. Ammonium phosphate and ammonium sulfate.
- the proportion of urea mixture is in the range of 5 to 80 wt.%.
- GB 805 393 relates to a dry extinguishing powder for Class A and B fires. Both ammonium sulphate and ammonium phosphate are present therein. A particle size is not specified explicitly. In one variant, the two ammonium compounds are ground together. The ratio of the phosphate compound to the sulfate compound is approximately 1: 1.
- CONFIRMATION COPY Ammonium sulfate wherein in this proportion by weight additionally at least 1/9 of diammonium phosphate is included.
- the composition consists of 30 to 50 wt% sodium carbonate, 35 to 55 wt% ammonium sulfate, and 7 to 13 wt% diammonium phosphate.
- mineral components such as soapstone, silica, talc and the like may be present.
- Ammonium phosphate and ammonium sulfate are ground and have a particle size of 211 pm.
- the sodium carbonate can also have larger particles.
- Other ingredients have particle sizes between 20 and 40 pm.
- GB 1 150 682 discloses improved dry extinguishing agents.
- ammonium salts consisting of phosphate and sulfate compounds
- 10 to 25 wt.% Of sodium carbonate minerals are used with a particle size of> 10pm. According to the description, the components of the mineral group are treated with silicone oil.
- DE 3414931 C2 relates to a quenching powder consisting of alkali metal or ammonium bisulfate, sulfate, hydrogen phosphate, phosphate, hydrogen carbonate, halides, - borates, urea, melamine or dicyandiamide and metal salt catalysts.
- the particle size is within a range of 1 to 200 pm.
- the main constituent of the extinguishing agent may be sesquicarbonates.
- the substances of groups 1 and 2 are special active substances for extinguishing powder for liquid fires (fire class B), the substances of group 3 are suitable for extinguishing light metal and metal fires (fire class D) and are the substances of groups 4 and 5 Active ingredients of. Extinguishing powders for glowing fire objects (fire class A) and for liquid fires. Fire extinguishing agents based on group 1, 2, 4 and 5 active substances are also suitable for extinguishing gas fires (fire class C).
- the extinguishing powders can also contain substances for securing the hydrophobicity and the flow properties and possibly also other additives.
- the most modern dry-erase powders contain the adducts of group 2 as active ingredient.
- Such dry-erase powders are described, for example, in the following patents: GB-PS 1,118,215, GB-PS 1,168,092, GB-PS 1190,132 and DE 2,258,256.
- the extinguishing effect this powder is 3-5 times as large as that of the classic extinguishing powder containing alkali metal bicarbonates.
- the adducts are stable and inert.
- the quenching mechanism of the dry-erase powders is defined as follows.
- the basic quenching property of the dry-erase powders is to inhibit the radical-chain reaction of combustion. The inhibition takes place in heterogeneous or in homogeneous phase.
- the powder particle that has entered the flame zone functions as an "elemental" wall
- the alkali metal particle evaporates from the surface of the powder and in the vapor state recombines the particles continuing the combustion process
- the effect of the inhibition depends on the nature of the particles resulting from the powder during the thermal decomposition, the particle size which determines with the reject parameters the residence time of the powder particle in the flame zone, and the size of the particle surface, in which the size of the particle surface heterogeneous recombination, as well as the amount of vaporized zone influences the secondary, homogeneous recombination can be increased according to the selected type of active substance, the surface of the powder and the residence time of the particle in the flame zone.
- the oxygen displacement effect of the inert gases formed during the thermal decomposition of the extinguishing agent also occurs as a secondary extinguishing effect. Therefore, the dry-erase powders are mostly substances from which a large amount of inert gases (eg carbon dioxide) is released when extinguished. Liberated ammonia also prevents the chemical reaction of the combustion process as radical scavenger.
- fire-extinguishing agents is understood to mean the dry-extinguishing agents which are not formulated with water but are used exclusively as dry powder.
- Another object of the present invention has been to provide a composition of a fire-extinguishing powder, in particular a dry extinguishing powder, which is produced economically and ecologically sensible and generates no further disposal costs after use. Also should the product after the use of environmentally friendly and no or only a slight health impairment and have a high storage stability.
- the object is achieved by a fire extinguishing agent, in particular dry extinguishing powder, the 0.0001 to 19.9 wt.% Ammonium phosphate and / or ammonium dihydrogen phosphate, 70.2 to 95 wt.% Ammonium sulfate and
- the dry-erase powder composition contains
- ammonium phosphate and / or ammonium dihydrogen phosphate 0.01 to 17.5% by weight of ammonium phosphate and / or ammonium dihydrogen phosphate
- the dry-erase powder composition contains
- liquid substances such as gasoline, diesel fuel, alcohol, ether, glycol
- Burning gaseous substances such as hydrogen, methane, propane or mixtures thereof.
- auxiliaries is understood as meaning, inter alia, flow aids, water repellents, markers, flavors, dyes, minerals, combustion inhibitors and the like.
- flavors is understood to mean those from the group of terpenes, resinoids, resins, concentrates and synthetic perfume components such as hydrocarbons, alcohols, aldehydes, ketones, ethers, acids, esters, acetals, ketines, nitriles, etc. containing saturated and unsaturated compounds, called aliphatic, carbocyclic and heterocyclic compounds.
- Examples include noble-fir, pine needle oil, mountain pine oil, pine needle oil, juniper berry oil, lavender oil, rosemary oil, thyme oil, cedar wood oil, lemon oil, tangerine oil, bitter orange oil, palmarosa oil, geranium oil, petitgrain oil, guaiac wood oil.
- the term "dyes” is generally understood to mean inorganic or organic pigments, which may be taken to mean those from the group of copper oxides, iron oxides, titanium dioxide, carbon black or the like, and mixtures thereof. red (Fe2Ü3) or black (FeßO ⁇ ).
- the term “minerals” means substances such as kaolin, silicates, sparingly soluble sulfates, zeolites or the like.
- the term “combustion inhibitor” is understood to mean compounds selected from the series comprising inorganic or organic phosphorus-containing compounds, inorganic or organic nitrogen-containing compounds, hydroxides, carbonates, hydroxide carbonates, metal borates or aluminum trioxide and / or mixtures thereof listed here are the phosphorus and / or nitrogen-containing inhibitors, preferably potassium, calcium and iron phosphates of any degree of substitution, triphenyl phosphate, ammonium phosphates, iron ammonium phosphate, ammonium oxalate, ferric ammonium oxalate and amides, for example urea, triazine and its derivatives, dicycanamide; Sodium, calcium, magnesium, barium and zinc borates are preferred. Also used are aluminum hydroxide, magnesium hydrox
- flow aids are taken to mean those from the group of calcium carbonates, calcium phosphates, calcium silicates, sodium, potassium magnesium or calcium salts of fatty acids and their derivatives, magnesium oxides, magnesium carbonates, magnesium or aluminum silicates, silica sols, aluminum oxides, Zinc oxides, silicas, talc, gluconates fatty amines or the like and mixtures thereof understood.
- water repellents is taken to mean those from the group of sodium, potassium, magnesium or calcium salts of fatty acids and their derivatives, silicic acids, silicon oxides, siloxanes, organosilicon or organosilicon compounds, waxes, metal soaps, paraffins or paraffin oils and similar nonpolar substances and mixtures thereof.
- the term "marker” is understood to mean those from the group of brighteners, dye or dye combinations, chemical compounds, radioactive metals or their compounds, and similar substances which are easily detectable by the manufacturer and mixtures thereof.
- the term "diluents” is understood to mean those from the group of sodium sulfate, sodium tripolyphosphate, sodium sesquicarbonate, sodium chloride, sea salt, sodium hexametaphosphate, sodium metaborate, trisodium phosphate, sodium thiosulfate, titanium dioxide.
- additives of dyes or aromas can be added to the dry-erase powder according to the invention.
- both the Extinguishing quality and the existing in many cases odor nuisance at the fire can be reduced.
- composition according to the invention has improved operating properties.
- the dry extinguishing powder according to the invention has the following particle size distributions.
- the particle size distributions are distributed according to the invention as follows:
- these are distributed according to the invention as follows:> 40 ⁇ m (1) in a range from 25% by weight to 65% by weight.
- Extinguisher types met the requirements of 13 A to 54 A and 183 B of categories A and B for powder extinguishers.
- the dry extinguishing powder used according to the invention corresponds to European Standard EN 615 (2008 not yet published).
- the bulk density according to DIN was 87 + 5 (g / 100 ml).
- the temperature resistance is in the range between -60 to +85 ° C.
- the foam compatibility is also guaranteed.
- the shelf life warranty is appropriate storage for at least 5 years without a reduction in extinguishing capacity.
- the dry-erase powder used according to the invention was optimally hydrophobicized for a wide range of application of temperature fluctuations and moisture.
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- 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
La présente invention concerne un produit d'extinction d'incendie, notamment une poudre sèche d'extinction, ledit produit d'extinction d'incendie contenant 0,0001 à 19,9 % en poids de phosphate d'ammonium et/ou de dihydrogène phosphate d'ammonium, 70,1 à 95 % en poids de sulfate d'ammonium et 0,1 à 10,0 % en poids d'autres adjuvants, et convient aux feux de classes A, B et C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10805673A EP2496315A2 (fr) | 2009-11-08 | 2010-11-08 | Produit d'extinction d'incendie, notamment mélanges de poudres sèches, procédé de production et utilisation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009053186 | 2009-11-08 | ||
DE102009053186A DE102009053186A1 (de) | 2009-11-08 | 2009-11-08 | Feuerlöschmittel, insbesondere Trockenpulvermischungen, Verfahren zur deren Herstellung und Verwendung |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011054345A2 true WO2011054345A2 (fr) | 2011-05-12 |
WO2011054345A3 WO2011054345A3 (fr) | 2011-11-17 |
Family
ID=43853036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2010/001290 WO2011054345A2 (fr) | 2009-11-08 | 2010-11-08 | Produit d'extinction d'incendie, notamment mélanges de poudres sèches, procédé de production et utilisation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2496315A2 (fr) |
DE (1) | DE102009053186A1 (fr) |
WO (1) | WO2011054345A2 (fr) |
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CN102814018A (zh) * | 2011-06-10 | 2012-12-12 | 苏州吴越合成消防科技有限公司 | Abc干粉灭火剂生产工艺 |
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US10332222B1 (en) | 2017-12-02 | 2019-06-25 | M-Fire Supression, Inc. | Just-in-time factory methods, system and network for prefabricating class-A fire-protected wood-framed buildings and components used to construct the same |
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Publication number | Publication date |
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DE102009053186A1 (de) | 2011-05-12 |
WO2011054345A3 (fr) | 2011-11-17 |
EP2496315A2 (fr) | 2012-09-12 |
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