WO1999026698A1 - Multipurpose dry powder of extinguishing agent for class a, b, c and d fires - Google Patents
Multipurpose dry powder of extinguishing agent for class a, b, c and d fires Download PDFInfo
- Publication number
- WO1999026698A1 WO1999026698A1 PCT/CN1997/000133 CN9700133W WO9926698A1 WO 1999026698 A1 WO1999026698 A1 WO 1999026698A1 CN 9700133 W CN9700133 W CN 9700133W WO 9926698 A1 WO9926698 A1 WO 9926698A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dry powder
- fire extinguishing
- sulfate
- fires
- extinguishing agent
- 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
- the present invention relates to a dry powder fire extinguishing agent, especially a full function A B C D dry powder fire extinguishing agent capable of extinguishing Class A, B, C and D fires and its production method. Background technique
- the object of the present invention is to address the shortcomings of the above-mentioned background technology, and propose a full-featured ABCD dry powder fire extinguishing agent and its production method, so as to improve the fire extinguishing efficiency of the dry powder fire extinguishing agent, expand the fire extinguishing range and fire extinguishing effect of the dry powder fire extinguishing agent variety, while simplifying the production process and reducing production costs.
- Summary of the invention In order to achieve the above object, the present invention provides a full-featured ABCD dry powder fire extinguishing agent, the composition of which is as follows. Ammonium sulfate 50-80%
- the alkali metal sulfate-based penetration enhancers sodium sulfate and potassium sulfate are preferably sodium sulfate.
- the present invention also provides a method for producing the above-mentioned dry powder fire extinguishing agent, the method comprising the following steps:
- composition of each point is as follows: Ammonium sulfate 50-80% Ammonium dihydrogen phosphate 5 - 30 % Sodium chloride 5 - 20 %
- sodium sulfate and potassium sulfate, the alkali metal sulfate penetration enhancers used are preferably sodium sulfate.
- the raw materials used are industrial grade raw materials.
- the full-functional ABCD dry powder fire extinguishing agent of the present invention uses ammonium salt as the base material, and through the modification of its physical and chemical properties, it can be used as a dry powder chemical fire extinguishing agent for extinguishing Class A, B, C and D fires and live equipment fires.
- AB , BC, BCD dry powder as a whole.
- the full-function ABCD dry powder fire extinguishing agent of the present invention has the characteristics of easy to obtain raw materials, low cost, simple production process, no pollution to the environment, wide fire extinguishing range, fast fire extinguishing speed, and high efficiency. Long-term storage will not fail and will not corrode.
- the full-function ABCD dry powder fire extinguishing agent of the present invention also uses a non-toxic inorganic alkali metal sulfate penetration enhancer to better extinguish Class A, B, C and D fires and reduce production costs.
- the penetration enhancer is fully dissolved in water, the solution is sprayed on the surface of the base material particles.
- the dry powder with ammonium salt as the main ingredient will form a waxy substance with waterproof properties on the surface of the base material due to the temperature rise of the material movement.
- the spheres observed with an electron microscope, found that there is a black ring of nearly 1 mm in the section of the dry powder particles of the present invention.
- a denser water-repellent network is formed on the surface of the dry powder particles, which effectively resists the intrusion of water.
- the water repellency of the dry powder fire extinguishing agent is improved, and performance indicators such as its hygroscopicity are improved. It is precisely because the penetration enhancer forms a layer of wax on the surface of the dry powder.
- the special properties of wax-like spheres prevent the inorganic base material in the dry powder from being exposed, so that the dry powder has the ability of anti-corrosion.
- a series of chemical reactions can accelerate the inhibition and penetration of combustibles, thus greatly improving the fire extinguishing performance of dry powder, so as to achieve the purpose of waterproof, anti-corrosion, hydrophobic, hydrophobic, oil-repellent and wide range of fire extinguishing, and make the hygroscopic performance, flow Performance, anti-caking performance, etc. can be stabilized within a certain range.
- the full-function ABCD dry powder fire extinguishing agent of the present invention is different from other dry powders at home and abroad in terms of material selection and process, and its advancement is obvious.
- Examples 1-3 of the present invention adopt the formulations shown in the following table, wherein the alkali metal sulfate penetration enhancer used is sodium sulfate, and all raw materials used are industrial grade, and the dosage is calculated by weight percentage.
- Silicone oil 0.5 0.4 0.2 The production method of the dry powder fire extinguishing agent of the above-mentioned Examples 1-3 is as follows: Mix and dry ammonium sulfate, ammonium dihydrogen phosphate and sodium chloride according to the ratio stated in the table, and pass through the sieve. Add activated clay and mica powder according to the ratio stated in the table, and mix and stir at a temperature of about 70 ° C for about 5 minutes to perform a mixed catalytic reaction. Sodium sulfate was fully dissolved in water, and then the sodium sulfate solution was sprayed onto the surface of the formed mixture material with a pump, and stirred for 8 minutes. Add hydrophobic silicon powder and mix for about 10 minutes.
- the main performance parameter of dry powder fire extinguishing agent of the present invention is as follows:
- the dry powder fire extinguishing agent of the present invention has good permeability when extinguishing Class A fires (wood fires), and the fire extinguishing speed is very fast and does not re-ignite and smolder within 15 minutes after fire extinguishing;
- the test results found that the fire extinguishing speed of the two oil pans is equally fast, and the unit The amount of dry powder used in the fire extinguishing area is 40-50% less than that of common dry powder fire extinguishing agents currently on the market.
- the dry powder fire extinguishing agent of the present invention exhibits performance similar to that of extinguishing class B fires.
- the fire extinguishing efficiency of dry powder fire extinguishing agent in extinguishing Class D fire is determined by the following method:
- a square steel plate with a wall thickness of 6.0 mm, a side length of 500 mm, and a height of 50 mm is used.
- the four sides of the plate are reinforced with No. 36 (L36x5) equilateral angle steel.
- a metal frame is used to support it. Ground at least 450 mm.
- the test fuel is magnesium or sodium.
- the fire extinguishing test is carried out according to the following conditions and steps: Control the test temperature at 0-30 °C, and the wind speed is not greater than 3 m/s; evenly spread 25 mm thick dry sand on the bottom surface of the steel pan; Put 500 grams of metal magnesium or 100 grams of metal sodium in the metal fuel pan; place the metal fuel pan on the dry sand surface in the steel pan; ignite the metal within 20 seconds with an ignition device, and after 30 seconds of pre-combustion, use metal Sprinkle 500 grams of dry powder fire extinguishing agent evenly with the shovel.
- the fire extinguishing efficiency of the full-function ABCD dry powder fire extinguishing agent of the present invention in extinguishing Class D fires was measured, and it was found that the full-function ABCD dry powder fire extinguishing agent of the present invention can quickly cover fires when extinguishing fires caused by metal sodium, magnesium, aluminum, etc. area, and rapidly cools the metal, eventually extinguishing the fire without re-igniting the metal.
- the dry powder fire extinguishing agent of the present invention exhibits satisfactory fire extinguishing efficiency.
- the measured 380 volt loop current is less than 0.1 ampere, and the maximum voltage of the fire extinguisher cylinder to the ground is 2.2 volts, which shows that the dry powder fire extinguishing agent of the present invention can completely put out the live equipment fire.
- the present invention has full-function fire extinguishing features, and is suitable for extinguishing Class A, B, C and D fires.
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)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN1997/000133 WO1999026698A1 (en) | 1997-11-21 | 1997-11-21 | Multipurpose dry powder of extinguishing agent for class a, b, c and d fires |
AU50470/98A AU5047098A (en) | 1997-11-21 | 1997-11-21 | Multipurpose dry powder of extinguishing agent for class a, b, c and d fires |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN1997/000133 WO1999026698A1 (en) | 1997-11-21 | 1997-11-21 | Multipurpose dry powder of extinguishing agent for class a, b, c and d fires |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999026698A1 true WO1999026698A1 (en) | 1999-06-03 |
Family
ID=4575006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN1997/000133 WO1999026698A1 (en) | 1997-11-21 | 1997-11-21 | Multipurpose dry powder of extinguishing agent for class a, b, c and d fires |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU5047098A (zh) |
WO (1) | WO1999026698A1 (zh) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1752195A1 (en) * | 2005-08-12 | 2007-02-14 | Bonex Inc. | Process for producing a fire extinguishing agent |
US7280989B1 (en) | 2000-01-28 | 2007-10-09 | Arizona Board Of Regents | Phase-locked loop oscillatory neurocomputer |
WO2011054345A3 (de) * | 2009-11-08 | 2011-11-17 | Caldic Deutschland Chemie B.V. | Feuerlöschmittel, insbesondere trockenpulvermischungen, verfahren zu deren herstellung und verwendung |
US8080169B2 (en) | 2005-08-08 | 2011-12-20 | Bonex, Inc. | Process for producing extinguishing agent and throw-type fire extinguisher |
CN103170088A (zh) * | 2013-03-12 | 2013-06-26 | 北京理工大学 | 一种abc干粉灭火剂 |
US9238029B2 (en) | 2004-06-16 | 2016-01-19 | Takeda Pharmaceuticals U.S.A., Inc. | Multiple PPI dosage form |
CN105879288A (zh) * | 2016-05-25 | 2016-08-24 | 李涛 | 一种abc干粉灭火剂及制备方法 |
CN107929995A (zh) * | 2017-12-11 | 2018-04-20 | 张仁 | 一种消防用灭火液及其制备工艺 |
CN112774077A (zh) * | 2021-03-22 | 2021-05-11 | 厦门一泰消防科技开发有限公司 | 一种森林灭火剂及其制备方法 |
CN113546361A (zh) * | 2021-08-17 | 2021-10-26 | 湖南神州防务科技有限公司 | 一种基于低聚磷酸铵的复合森林干粉灭火剂及其制备方法和应用 |
Families Citing this family (3)
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CN102512780B (zh) * | 2011-12-02 | 2013-09-11 | 姜发扬 | 一种有机无机复合微胶囊灭火剂及其制备方法 |
CN102974066B (zh) * | 2012-11-19 | 2016-06-01 | 浙江福兴消防设备有限公司 | 一种高效能abc超细干粉灭火剂及其制备方法 |
CN112807600A (zh) * | 2020-12-15 | 2021-05-18 | 华夏永侒(西安)控股集团有限公司 | 组合作用微型颗粒温感灭火剂及其制备方法 |
Citations (6)
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US4194979A (en) * | 1977-06-22 | 1980-03-25 | Harald Gottschall | Dry chemical fire extinguishing powder containing alkali metal gluconate |
JPS5878676A (ja) * | 1981-11-04 | 1983-05-12 | 三井東圧化学株式会社 | 粉末消火薬剤 |
JPS58175575A (ja) * | 1982-04-08 | 1983-10-14 | 三井東圧化学株式会社 | 粉末消火薬剤 |
CN1064818A (zh) * | 1992-04-16 | 1992-09-30 | 肖振三 | 一种森林灭火剂及其制法 |
CN1124171A (zh) * | 1995-09-20 | 1996-06-12 | 武汉消防科研实验工厂 | 全功能abcd干粉灭火剂及生产方法 |
CN1138494A (zh) * | 1995-06-22 | 1996-12-25 | 李茂廷 | 硫酸铵盐多功能干粉灭火剂 |
-
1997
- 1997-11-21 WO PCT/CN1997/000133 patent/WO1999026698A1/zh active Application Filing
- 1997-11-21 AU AU50470/98A patent/AU5047098A/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4194979A (en) * | 1977-06-22 | 1980-03-25 | Harald Gottschall | Dry chemical fire extinguishing powder containing alkali metal gluconate |
JPS5878676A (ja) * | 1981-11-04 | 1983-05-12 | 三井東圧化学株式会社 | 粉末消火薬剤 |
JPS58175575A (ja) * | 1982-04-08 | 1983-10-14 | 三井東圧化学株式会社 | 粉末消火薬剤 |
CN1064818A (zh) * | 1992-04-16 | 1992-09-30 | 肖振三 | 一种森林灭火剂及其制法 |
CN1138494A (zh) * | 1995-06-22 | 1996-12-25 | 李茂廷 | 硫酸铵盐多功能干粉灭火剂 |
CN1124171A (zh) * | 1995-09-20 | 1996-06-12 | 武汉消防科研实验工厂 | 全功能abcd干粉灭火剂及生产方法 |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7280989B1 (en) | 2000-01-28 | 2007-10-09 | Arizona Board Of Regents | Phase-locked loop oscillatory neurocomputer |
US9889152B2 (en) | 2004-06-16 | 2018-02-13 | Takeda Pharmaceuticals U.S.A., Inc. | Multiple PPI dosage form |
US9238029B2 (en) | 2004-06-16 | 2016-01-19 | Takeda Pharmaceuticals U.S.A., Inc. | Multiple PPI dosage form |
US8080169B2 (en) | 2005-08-08 | 2011-12-20 | Bonex, Inc. | Process for producing extinguishing agent and throw-type fire extinguisher |
EP1752195A1 (en) * | 2005-08-12 | 2007-02-14 | Bonex Inc. | Process for producing a fire extinguishing agent |
WO2011054345A3 (de) * | 2009-11-08 | 2011-11-17 | Caldic Deutschland Chemie B.V. | Feuerlöschmittel, insbesondere trockenpulvermischungen, verfahren zu deren herstellung und verwendung |
CN103170088A (zh) * | 2013-03-12 | 2013-06-26 | 北京理工大学 | 一种abc干粉灭火剂 |
CN105879288A (zh) * | 2016-05-25 | 2016-08-24 | 李涛 | 一种abc干粉灭火剂及制备方法 |
CN105879288B (zh) * | 2016-05-25 | 2019-05-24 | 海门市知舟工业设计有限公司 | 一种abc干粉灭火剂及制备方法 |
CN107929995A (zh) * | 2017-12-11 | 2018-04-20 | 张仁 | 一种消防用灭火液及其制备工艺 |
CN112774077A (zh) * | 2021-03-22 | 2021-05-11 | 厦门一泰消防科技开发有限公司 | 一种森林灭火剂及其制备方法 |
CN113546361A (zh) * | 2021-08-17 | 2021-10-26 | 湖南神州防务科技有限公司 | 一种基于低聚磷酸铵的复合森林干粉灭火剂及其制备方法和应用 |
CN113546361B (zh) * | 2021-08-17 | 2022-09-02 | 湖南神州防务科技有限公司 | 一种基于低聚磷酸铵的复合森林干粉灭火剂及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
AU5047098A (en) | 1999-06-15 |
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