EP0375741A1 - L'Emploi d'un Agent Extincteur. - Google Patents

L'Emploi d'un Agent Extincteur.

Info

Publication number
EP0375741A1
EP0375741A1 EP88909514A EP88909514A EP0375741A1 EP 0375741 A1 EP0375741 A1 EP 0375741A1 EP 88909514 A EP88909514 A EP 88909514A EP 88909514 A EP88909514 A EP 88909514A EP 0375741 A1 EP0375741 A1 EP 0375741A1
Authority
EP
European Patent Office
Prior art keywords
fire extinguishing
extinguishing agent
agent according
water
fire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88909514A
Other languages
German (de)
English (en)
Other versions
EP0375741B1 (fr
Inventor
Gunther Marx
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88909514T priority Critical patent/ATE64312T1/de
Publication of EP0375741A1 publication Critical patent/EP0375741A1/fr
Application granted granted Critical
Publication of EP0375741B1 publication Critical patent/EP0375741B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • A62D1/0028—Liquid extinguishing substances
    • A62D1/005—Dispersions; Emulsions

Definitions

  • the invention relates to a fire extinguishing agent.
  • Typical fire extinguishing agents are water or organic foams.
  • the fire extinguishing agent proposed in DE-AS 1 211 946 contains CO 2 -releasing salts in conjunction with organic acids and vermiculite which has been delivered or rolled out and then grained as a mica component.
  • a dry chemical mixture as fire extinguishing foam is known from DE-PS 570 456.
  • the mixture consists of aluminum sulfate, sodium bicarbonate and ssponin, to which, according to page 1, lines 50 to 55, a kaolin addition of 8 to 35% can also be added, which, however, suppresses the foam yield.
  • the well-known dry chemical mixture has not become established because fire extinguishing foams cannot be made available in large quantities, for example for fighting forest fires.
  • the fire extinguishing agent known from DE-PS 608 037 consists of extinguishing liquid loaded, economical, anerganic, porous, active measurements, the extinguishing liquid being carbon tetrachloride.
  • the use of carbon tetrachloride is already ruled out from an environmental point of view for practical feasibility.
  • a fire-suffocating effect should also be achieved with the fire extinguishing agent according to DE-PS 746 963 (page 1, lines 21 to 25), for which purpose the agent consists of a mixture of sand and an alkaline earth carbonate.
  • the present invention is based on the object of offering a fire extinguishing agent which can also be used or is suitable in large quantities, in particular for fighting large-scale fires, and which is easy to handle and above all should not have any components which are harmful to the environment: on the contrary, it is strived to provide a fire extinguishing agent that not only shows an optimal fire extinguishing effect, but is also as environmentally compatible as possible after performing this function and does not require separate disposal, as is the case with chemical-based fire extinguishing agents.
  • the invention is based on the knowledge that the disadvantages known from the prior art can be overcome if, instead of a single, a targeted combination of different clay minerals is used as an adsorbent for other constituents of the clay mineral, such as kaolimt, which complement each other in a synergistic way with regard to their individual properties and effects.
  • a kaolinite as mentioned in DE-PS 570 456, leads to a very strong coagulation of the fire extinguishing agent, or a bentonite, as mentioned in DE-AS 1 130 294, leads to an undesirable strong thixotropy of the dry powder coming into contact with liquid
  • surprisingly excellent stable suspensions can be achieved from a clay mineral mixture containing smbktite, kaolinite and clay minerals from the mica group as soon as the material comes into contact with the extinguishing liquid (usually water) or is mixed.
  • the agent according to the invention can be used on an industrial scale.
  • Such a clay mineral mixture is capable of absorbing considerable amounts of water, the preferred water / solids ratio being between 10: 1 and 3: 1, and even with these large amounts of water there are outstandingly stable suspensions.
  • the compulsory constituents smectite, kaolimt and mica, in particular illite, are preferably mixed together in the proportions specified in claim 2. Depending on the proportion of the individual clay minerals, the mixture can then absorb a non-flammable extinguishing liquid, in particular water, in the amount specified in claim 7.
  • the smock according to the invention also offers a decisive advantage over known fire extinguishing agents in that its ability to bind water can be maintained over a considerably longer period than previously known. This means that the fire extinguishing agent is available for firefighting or fire prevention for a longer period of time, but it can also reliably prevent the fire from starting again because the solid particles can absorb water again at a later time. The remedy then turns out to be quasi reversible
  • the fire extinguishing agent according to the invention is particularly easy to handle.
  • the density increases from 1.0 g / cm 3 to 1.05 to 1.5 g / cm 3 or above. This increases the falling speed, for example when the extinguishing agent is dropped from an aircraft, and the risk is reduced that the extinguishing agent is carried away by the wind without having its extinguishing effect at the source of the fire.
  • Clay mineral particles are also ensured that, for example, evaporation losses due to the heat of the fire are considerably minimized.
  • the spontaneous readiness of the clay mineral mixture to absorb extinguishing liquid also creates the possibility of first discharging the material dry and only later performing the actual extinguishing by spraying extinguishing water, which in turn results in a longer effectiveness due to the high water binding capacity of the clay mineral particles.
  • the clay / mineral mixture according to the invention can also have natural or added fractions of quartz, opaque and / or feldspar as well as accessory batch fractions.
  • the accessory batch proportions include substances such as magnetite that bind oxygen, especially at higher temperatures at around 1000 ° C.
  • the agent also leads to a reduction in toxic flue gas and soil components through adsorption, absorption and / or catalytic Implementation.
  • Additions of calcium carbonate or magnesium carbonate in particular, for example in the form of lime or dolomite, further increase the fire-suffocating effect of the agents, in particular by releasing CO 2 in the fire or forming Ca (OH) 2 and / or Mg (OH) 2 Contact with water.
  • the fire extinguishing agent according to the invention has its effect not only with regard to the actual fire fighting, but also in the disposal of toxic components in the air and in the ground.
  • the fire extinguishing agent itself is fire-resistant up to approx. 1200 ° C and higher, which means that it can withstand the highest forest fire temperatures and is preferably sprayed or thrown onto the surfaces to be extinguished as a suspension in finely dispersed form. Even if the water evaporates after a certain time, the clay mineral constituents still adhere to the extinguished forest areas (trees) or components and form a kind of "protective layer", as a result of which they remove the "food" from the fire as well as when used in the form of dry powder.
  • the agent Due to the exclusively natural, mineral components, the agent is completely harmless to humans, animals or plants. As explained above, it can then even be used to meliorate damaged soils, for example if it is washed off by subsequent rain.
  • Additions such as sodium carbonate or water glass can have a further positive influence on the water retention capacity.
  • a number of further substances are available to the person skilled in the art which have a dispersing effect and / or which promote water retention.
  • the liquefying cationic or aniomic agents such as sodium silicate or surface active surfactants.
  • the accessory quantity components also include those such as magnetite (Fe 3 O 4 ), which is able to bind oxygen, especially at higher temperatures, such as those prevailing in forest fires. It is evident that such oxygen scavenging makes a further contribution to containing a conflagration.
  • magnetite Fe 3 O 4
  • the agent could be adjusted in such a way that the addition of salt-containing sea water and extinguishing liquid to a clay mineral mixture according to the invention also has a catalytic effect on its activation with respect to the water retention capacity or dispersion of the components.
  • the fire extinguishing agent according to the invention can of course also be applied by means of conventional fire trucks or corresponding devices.
  • the high stability of the suspension ensures that the material does not sediment even with long transport routes or rest periods and therefore still develops its full effectiveness.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dispersion Chemistry (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Agent extincteur à base d'une combinaison de différents minéraux argileux. Le mélange de minéraux argileux contient au moins de la bentonite, de la kaolinite et des minéraux argileux appartenant au groupe du mica.
EP88909514A 1987-11-19 1988-11-08 L'Emploi d'un Agent Extincteur Expired - Lifetime EP0375741B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88909514T ATE64312T1 (de) 1987-11-19 1988-11-08 Verwendung eines feuerloeschmittles.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3739177A DE3739177C1 (de) 1987-11-19 1987-11-19 Feuerloeschmittel
DE3739177 1987-11-19

Publications (2)

Publication Number Publication Date
EP0375741A1 true EP0375741A1 (fr) 1990-07-04
EP0375741B1 EP0375741B1 (fr) 1991-06-12

Family

ID=6340779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88909514A Expired - Lifetime EP0375741B1 (fr) 1987-11-19 1988-11-08 L'Emploi d'un Agent Extincteur

Country Status (5)

Country Link
US (1) US5132030A (fr)
EP (1) EP0375741B1 (fr)
AU (1) AU605937B2 (fr)
DE (1) DE3739177C1 (fr)
WO (1) WO1989004694A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110870963A (zh) * 2019-11-12 2020-03-10 四川天地同光科技有限责任公司 一种新型消防灭火材料及其制备方法

Families Citing this family (28)

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WO1990011800A1 (fr) * 1989-04-10 1990-10-18 Aquamot Ag Procede pour combattre et eteindre les incendies et dispositif correspondant
AT405242B (de) * 1994-01-25 1999-06-25 Twaroch Heinz W Verfahren zur bekämpfung von bränden
US5509485A (en) * 1994-03-04 1996-04-23 Almagro; Guillermo Fire suppressant
AUPN796096A0 (en) * 1996-02-08 1996-02-29 Orion Safety Industries Pty. Limited Fire fighting foams utilising saponins
RU2098158C1 (ru) * 1996-05-24 1997-12-10 Международный фонд попечителей Московского государственного авиационного технологического университета им.К.Э.Циолковского Минерально-водяная суспензия для тушения пожара
US6024295A (en) * 1998-03-26 2000-02-15 Sanchez; John P. Fire retardant
US6168834B1 (en) * 1999-03-26 2001-01-02 Kenneth R. Hallo Method for dissipating heat
DE10003793A1 (de) * 2000-01-28 2001-09-06 Febbex Ag Steinsel Verfahren und Löschmittel zum Löschen eines Öl- und/oder Fettbrandes
US20020020536A1 (en) * 2000-08-15 2002-02-21 Bennett Joseph Michael Method of extinguishing vehicle fires
US8042619B2 (en) * 2001-08-01 2011-10-25 Firetrace Usa, Llc Methods and apparatus for extinguishing fires
US8453751B2 (en) * 2001-08-01 2013-06-04 Firetrace Usa, Llc Methods and apparatus for extinguishing fires
US20030030025A1 (en) * 2001-08-09 2003-02-13 Bennett Joseph Michael Dry chemical powder for extinguishing fires
JP2003051819A (ja) * 2001-08-08 2003-02-21 Toshiba Corp マイクロプロセッサ
RU2262367C1 (ru) * 2004-07-19 2005-10-20 Ветошкин Юрий Павлович Водный состав для тушения пожаров
US7416589B2 (en) * 2005-06-16 2008-08-26 Versa Terra International Water enhancement fire retardant
US7087105B1 (en) 2005-06-16 2006-08-08 Chappell Harry H Water enhancement fire retardant
NO323306B1 (no) * 2005-09-28 2007-03-05 Thermos As Brannslukningsmiddel, fremgangsmate til dets fremstilling samt fremgangsmate ved slukking av brann
GB2436796A (en) * 2006-04-06 2007-10-10 Paul Nathaniel Slater Extinguishing, supressing or controlling fire
US7717988B1 (en) * 2007-06-08 2010-05-18 Versa Terra International Fire resistive coating
KR20100057604A (ko) * 2007-07-13 2010-05-31 파이어 트레이스 유에스에이 엘엘씨 위험 물질을 담는 방법 및 장치
US9169044B2 (en) 2007-07-13 2015-10-27 Firetrace Usa, Llc Methods and apparatus for containing hazardous material
US8505642B2 (en) * 2009-11-05 2013-08-13 Firetrace Usa, Llc Methods and apparatus for dual stage hazard control system
GB2500704B (en) * 2012-03-30 2015-03-25 Goodwin Plc Fire extinguisher and fire extinguishing medium
AU2014399977B2 (en) * 2014-07-01 2017-09-21 Halliburton Energy Services, Inc. Dry powder fire-fighting composition
CN104841082A (zh) * 2015-04-23 2015-08-19 铜陵祥云消防科技有限责任公司 一种含有改性伊利石粉的灭火剂及其制备方法
AU2019269665B2 (en) * 2018-05-18 2021-11-18 Unifrax I Llc Fire protective compositions and associated methods
US20190374804A1 (en) * 2018-06-07 2019-12-12 Halliburton Energy Services, Inc. Compositions for fire suppressant powders
CN110368632B (zh) * 2019-09-10 2021-03-09 刘运喜 一种多功能绿色环保型灭火液及其制备与使用方法

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DE608037C (de) * 1928-02-10 1935-01-14 I G Farbenindustrie Akt Ges Feuerloeschmittel
DE570456C (de) * 1929-12-15 1933-02-16 Excelsior Feuerloeschgeraete A Herstellung eines zur Bereitung von Feuerloeschschaum geeigneten Trocken-Chemikalien-Gemisches
DE746963C (de) * 1940-10-27 1944-09-01 Horst Witthauer Feuerloeschmittel
FR1159404A (fr) * 1956-09-28 1958-06-27 Security Trust Company Poudre extinctrice
US3080316A (en) * 1958-09-15 1963-03-05 Johns Manville Fire retardant and control composition
DE1130294B (de) * 1960-10-24 1962-05-24 Ansul Chemical Company Trocken-Feuerloeschpulver sowie Verfahren zu dessen Anwendung
US3238129A (en) * 1963-11-12 1966-03-01 Grace W R & Co Fire fighting compositions
ZA771177B (en) * 1976-03-15 1978-01-25 A C I Tech Centre Improvements relating to clay compositions
US4070315A (en) * 1976-04-12 1978-01-24 General Motors Corporation Bentonite/halogen flame retarding additive
HU181499B (hu) * 1977-04-07 1983-07-28 Elzett Muevek Tűzoltó porkeverékek és eljá ás hatóanyagok előállítására
ZA817057B (en) * 1980-10-25 1982-09-29 Foseco Int Gel forming compositions
US4664843A (en) * 1985-07-05 1987-05-12 The Dow Chemical Company Mixed metal layered hydroxide-clay adducts as thickeners for water and other hydrophylic fluids

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Title
See references of WO8904694A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110870963A (zh) * 2019-11-12 2020-03-10 四川天地同光科技有限责任公司 一种新型消防灭火材料及其制备方法

Also Published As

Publication number Publication date
WO1989004694A1 (fr) 1989-06-01
US5132030A (en) 1992-07-21
DE3739177C1 (de) 1989-02-02
AU2617688A (en) 1989-06-14
EP0375741B1 (fr) 1991-06-12
AU605937B2 (en) 1991-01-24

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