CN1138494A - Multifunctional ammonium sulfate dry powdered extinguishant - Google Patents
Multifunctional ammonium sulfate dry powdered extinguishant Download PDFInfo
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- CN1138494A CN1138494A CN 95105553 CN95105553A CN1138494A CN 1138494 A CN1138494 A CN 1138494A CN 95105553 CN95105553 CN 95105553 CN 95105553 A CN95105553 A CN 95105553A CN 1138494 A CN1138494 A CN 1138494A
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Abstract
A multifunctional dry-chemical fire extinguishing agent is prepared from ammonium sulfate as main raw material and others including sodium chloride, calcium carbonate, ammonium polyphosphorate, mica powder, white carbon black, active argil, damp-proofing agent and organosilicon oil, and features wide fire-extinguishing range, quick fire extinguishing, high water-proof, anti corrosion and hydrophobic performance, and long storage period.
Description
The invention relates to a fire extinguishing agent, in particular to a dry powder fire extinguishing agent.
For a long time, the production of the dry powder extinguishing agent is restricted by the influence of small fire extinguishing range, along with the development of economic construction in China, the increasing implementation of configuration design specifications of industrial and civil building fire extinguishers in China and the gradual elimination of the alkyl halide extinguishing agent, the production and thesale of the dry powder extinguishing agent which has various fire extinguishing functions and can extinguish A, B, C fires tend to be on the rise, but only ammonium phosphate dry powder extinguishing agents have the functions at present, but the phosphorite resources in China are not abundant and unreasonable in distribution, so that the production raw materials are short, the production cost is high, and the requirements of economic development are difficult to adapt.
The invention aims to provide a novel dry powder extinguishing agent, so as to enlarge the extinguishing range of the extinguishing agent, improve the extinguishing efficiency, reduce the production cost of the extinguishing agent and the cost of fire suppression, and solve the defects of the conventional dry powder extinguishing agent.
The fire extinguishing principle of the dry powder fire extinguishing agent is actively researched and proposed by all countries in the worldA variety of models are available. We note that the combustion process is a severe oxidation process, and the key to maintaining the development of this process is the free radicals H and OH, so the combustion reaction is also known as a radical chain reaction. The invention takes ammonium sulfate as the main base material of the dry powder extinguishing agent, and the mechanism of extinguishing the fire is to absorb a large amount of free radicals, and the absorption speed is faster than the generation speed of the free radicals, thereby reducing the number of the free radicals, cutting off chain reaction and achieving the purpose of extinguishing the fire. F represents the ammonium sulfate salt multifunctional dry powder extinguishing agent, and the process of participating in combustion reaction is as follows:
at the same time of the above reaction, the ammonium sulfate salt is decomposed in the combustion system, and absorbs heat in the combustion system, and the generation rate of the free radicals is also reduced.
The invention also adds sodium chloride to the selection of base materials, in addition, selects auxiliary base materials calcium carbonate and ammonium polyphosphate which mainly extinguish A fire and increase B, C fire and D fire, and other additives, and the ingredients and the mixture ratio are as follows: 30-55% of ammonium sulfate salt, 25-40% of sodium chloride, 10-20% of calcium carbonate, 1-4% of ammonium polyphosphate, 3.2-4.5% of mica powder, 1-1.8% of white carbon black, 1-2.5% of activated clay, 0.1-0.2% of organic silicon oil and 1-3% of moisture-proof agent
The sum of the weight of the components is 100 percent.
The preparation process of the dry powder extinguishing agent comprises the following steps:
(1) mixing and drying raw materials of ammonium sulfate salt, sodium chloride, calcium carbonate and ammonium polyphosphate;
(2) pulverizing the raw materials and sieving;
(3) adding mica powder and activated clay into the raw materials, mixing, stirring and catalytically reacting for 3-10 minutes, and controlling the reaction temperature at 65-75 ℃;
(4) adding organic silicone oil, mixing, stirring and siliconizing for 5-10 minutes, and improving the moisture resistance, the flow property and the moisture absorption and caking resistance of the dry powder;
(5) adding white carbon black and mixing for 3-5 minutes to absorb moisture in the dry powder subjected to silicification, further improving the moisture-proof and anti-caking capacity, increasing the specific surface area and improving the penetration degree;
(6) stirring and drying for 40-60 min, further removing water, and controlling the temperature at 70-90 ℃;
(7) sieving, filtering to remove larger granule, and packaging.
The invention also adds sodium chloride to the selection of base materials, in addition, selects auxiliary base materials calcium carbonate and ammonium polyphosphate which mainly extinguish A fire and increase B, C fire and D fire, and other additives, and the ingredients and the mixture ratio are as follows: 30-55% of ammonium sulfate salt, 25-40% of sodium chloride, 10-20% of calcium carbonate, 1-4% of ammonium polyphosphate, 3.2-4.5% of mica powder, 1-1.8% of white carbon black, 1-2.5% of activated clay, 0.1-0.2% of organic silicon oil and 1-3% of moisture-proof agent
The sum of the weight of the components is 100 percent.
The preparation process of the dry powder extinguishing agent comprises the following steps:
(1) mixing and drying raw materials of ammonium sulfate salt, sodium chloride, calcium carbonate and ammonium polyphosphate;
(2) pulverizing the raw materials and sieving;
(3) adding mica powder and activated clay into the raw materials, mixing, stirring and catalytically reacting for 3-10 minutes, and controlling the reaction temperature at 65-75 ℃;
(4) adding organic silicone oil, mixing, stirring and siliconizing for 5-10 minutes, and improving the moisture resistance, the flow property and the moisture absorption and caking resistance of the dry powder;
(5) adding white carbon black and mixing for 3-5 minutes to absorb moisture in the dry powder subjected to silicification, further improving the moisture-proof and anti-caking capacity, increasing the specific surface area and improving the penetration degree;
(6) stirring and drying for 40-60 min, further removing water, and controlling the temperature at 70-90 ℃;
(7) sieving, filtering to remove larger granule, and packaging.
The multifunctional ammonium sulfate powder extinguishing agent is prepared with ammonium sulfate as base material and through modification of its physical and chemical properties, and may be used in extinguishing A, B, C,Class D fires and live equipment fires. The test of the fire extinguishing efficiency of the dry powder fire extinguishing agent is an important index for examining the dry powder, GB13532 general technical conditions of the dry powder fire extinguishing agent specifically stipulates a test method for extinguishing class A and class B fires, and a large number of tests for extinguishing class A and class B fires are carried out, so that the fire extinguishing speed is high, and the fire extinguishing time is generally 2-4 seconds. In order to further prove the B-class fire extinguishing efficacy of the ammonium sulfate multifunctional dry powder extinguishing agent, 2.4M of the ammonium sulfate multifunctional dry powder extinguishing agent is respectively used2、2.8M22.4M oil pan to extinguish fire2Oil pan fire was effectively extinguished, 2.8M2The oil pan also has a chance of quenching more than 85%. When the class D fire extinguishing test is carried out, the fire extinguishing test is still carried out according to the original sodium chloride dry powder fire extinguishing agent test method, and a good effect is obtained.
The ammonium sulfate salt dry powder extinguishing agent has the characteristics of wide raw material source, low cost, simple and convenient production process, wide extinguishing range, high extinguishing speed, high waterproof, anticorrosive and hydrophobic performances and the like, and ensures that the moisture absorption performance, the flow performance, the anti-caking performance and the like can be stabilized within a certain range and do not lose efficacy after long-term storage. In addition, the dry powder extinguishing agent is very convenient to use and can be directly matched with the existing dry powder extinguishing equipment for use.
Examples of the invention are provided below.
Example 1: 100 kg of ammonium sulfate salt dry powder extinguishing agent is prepared.
The invention comprises the following components in percentage by weight: 35 kg of ammonium sulfate salt, 40 kg of sodium chloride, 12 kg of calcium carbonate, 2 kg of ammonium polyphosphate, 4.5 kg of mica powder, 1.5 kg of white carbon black, 2 kg of activated clay, 2.8 kg of a moisture-proof agent and 0.2 kg of organic silicon oil.
The preparation process comprises the following steps:
(1) mixing raw materials of ammonium sulfate salt, sodium chloride, calcium carbonate and ammonium polyphosphate, and drying;
(2) pulverizing, and sieving with 0.040mm sieve;
(3) carrying out mixed catalytic reaction, adding mica powder and argil, stirring and mixing for 5 minutes, and keeping the temperature at 75 ℃;
(4) adding silicone oil, mixing, stirring and siliconizing for 10 minutes;
(5) adding white carbon black and a moisture-proof agent, and mixing for 3 minutes;
(6) stirring at low speed, drying for 50 min, controlling the temperature at 80 ℃, and further removing water;
(7) filtering out larger particles in the production process of the dry powder through a screen with the aperture of 0.250mm, and packaging the finished product.
Example 2: 100 kg of ammonium sulfate salt dry powder extinguishing agent is prepared.
The invention comprises the following components in percentage by weight: 53 kg of ammonium sulfate salt, 25 kg of sodium chloride, 15 kg of calcium carbonate, 2 kg of ammonium polyphosphate, 3.3 kg of mica powder, 1.3 kg of white carbon black, 1.3 kg of activated clay, 1.0 kg of a moisture-proof agent and 0.1 kg of organic silicon oil.
The preparation process comprises the following steps:
(1) mixing raw materials of ammonium sulfate salt, sodium chloride, calcium carbonate and ammonium polyphosphate, and drying;
(2) pulverizing, and sieving with 0.040mm sieve;
(3) carrying out mixed catalytic reaction, adding mica powder and argil, stirring and mixing for 4 minutes, and keeping the temperature at 75 ℃;
(4) adding silicone oil, mixing, stirring and siliconizing for 7 minutes;
(5) adding white carbon black and a moisture-proof agent, and mixing for 5 minutes;
(6) stirring at low speed, drying for 60 min, controlling the temperature at 80 ℃, and further removing water;
(7) filtering out larger particles in the production process of the dry powder through a screen with the aperture of 0.250mm, and packaging the finished product.
Claims (2)
1. The multifunctional ammonium sulfate salt dry powder extinguishing agent is characterized in that the main base material is ammonium sulfate salt, sodium chloride is also matched, the auxiliary base materials of calcium carbonate and ammonium polyphosphate are selected, other components comprise mica powder, white carbon black, activated clay, a moisture-proof agent and organic silicon oil, and the multifunctional ammonium sulfate salt dry powder extinguishing agent comprises the following components in parts by weight:
30 to 55 percent of ammonium sulfate salt
25 to 40 percent of sodium chloride
10 to 20 percent of calcium carbonate
1 to 4 percent of ammonium polyphosphate
Mica powder 3.2-4.5%
1 to 1.8 percent of white carbon black
Activated clay 1-2.5%
0.1 to 0.2 percent of organic silicone oil
1 to 3 percent of moisture-proof agent
The sum of the weight of the components is 100 percent.
2. The preparation method of the multifunctional ammonium sulfate salt dry powder extinguishing agent according to claim 1, characterized by comprising the following steps:
(1) mixing and drying raw materials of ammonium sulfate salt, sodium chloride, calcium carbonate and ammonium polyphosphate;
(2) pulverizing the raw materials and sieving;
(3) adding mica powder and activated clay into the raw materials, mixing, stirring and catalytically reacting for 3-10 minutes, and controlling the reaction temperature at 65-75 ℃;
(4) adding organic silicon oil, mixing, stirring and siliconizing for 5-10 minutes;
(5) adding white carbon black and mixing for 3-5 minutes;
(6) stirring and drying for 40-60 min, and controlling the temperature at 70-90 ℃;
(7) sieving, filtering to remove larger particles, and packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95105553 CN1138494A (en) | 1995-06-22 | 1995-06-22 | Multifunctional ammonium sulfate dry powdered extinguishant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95105553 CN1138494A (en) | 1995-06-22 | 1995-06-22 | Multifunctional ammonium sulfate dry powdered extinguishant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1138494A true CN1138494A (en) | 1996-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95105553 Pending CN1138494A (en) | 1995-06-22 | 1995-06-22 | Multifunctional ammonium sulfate dry powdered extinguishant |
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| Country | Link |
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| CN (1) | CN1138494A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999026698A1 (en) * | 1997-11-21 | 1999-06-03 | Chaohai Zhou | Multipurpose dry powder of extinguishing agent for class a, b, c and d fires |
| CN102814017A (en) * | 2011-06-10 | 2012-12-12 | 苏州吴越合成消防科技有限公司 | Production process for silicification of dry powder |
| CN104258532A (en) * | 2014-09-09 | 2015-01-07 | 西安新竹防灾救生设备有限公司 | ABC ultrafine dry powder extinguishing agent and preparation method thereof |
| CN107789784A (en) * | 2017-11-10 | 2018-03-13 | 蚌埠市龙泰消防有限公司 | Good ABC ultra-fine dry powder extinguishing agents of a kind of repellency and preparation method thereof |
| CN109011317A (en) * | 2018-09-25 | 2018-12-18 | 安徽省玉龙消防有限公司 | A kind of New Type Dry Powder Extinguishant and preparation method thereof |
| CN113599759A (en) * | 2021-08-07 | 2021-11-05 | 安徽科技学院 | Perlite type dry powder extinguishing agent and preparation method thereof |
| CN115068872A (en) * | 2022-07-05 | 2022-09-20 | 珩大科技(上海)有限公司 | Fire extinguishing agent with comprehensive fire extinguishing capability |
-
1995
- 1995-06-22 CN CN 95105553 patent/CN1138494A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999026698A1 (en) * | 1997-11-21 | 1999-06-03 | Chaohai Zhou | Multipurpose dry powder of extinguishing agent for class a, b, c and d fires |
| CN102814017A (en) * | 2011-06-10 | 2012-12-12 | 苏州吴越合成消防科技有限公司 | Production process for silicification of dry powder |
| CN102814017B (en) * | 2011-06-10 | 2015-02-18 | 苏州吴越合成消防科技有限公司 | Production process for silicification of dry powder |
| CN104258532A (en) * | 2014-09-09 | 2015-01-07 | 西安新竹防灾救生设备有限公司 | ABC ultrafine dry powder extinguishing agent and preparation method thereof |
| CN107789784A (en) * | 2017-11-10 | 2018-03-13 | 蚌埠市龙泰消防有限公司 | Good ABC ultra-fine dry powder extinguishing agents of a kind of repellency and preparation method thereof |
| CN109011317A (en) * | 2018-09-25 | 2018-12-18 | 安徽省玉龙消防有限公司 | A kind of New Type Dry Powder Extinguishant and preparation method thereof |
| CN113599759A (en) * | 2021-08-07 | 2021-11-05 | 安徽科技学院 | Perlite type dry powder extinguishing agent and preparation method thereof |
| CN115068872A (en) * | 2022-07-05 | 2022-09-20 | 珩大科技(上海)有限公司 | Fire extinguishing agent with comprehensive fire extinguishing capability |
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