CN113018750A - Metal fire extinguishing agent and preparation method thereof - Google Patents
Metal fire extinguishing agent and preparation method thereof Download PDFInfo
- Publication number
- CN113018750A CN113018750A CN202110289161.7A CN202110289161A CN113018750A CN 113018750 A CN113018750 A CN 113018750A CN 202110289161 A CN202110289161 A CN 202110289161A CN 113018750 A CN113018750 A CN 113018750A
- Authority
- CN
- China
- Prior art keywords
- parts
- fire extinguishing
- extinguishing agent
- mixture
- metal
- 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.)
- Pending
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
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)
Abstract
The invention relates to the technical field of fire extinguishing agent formulas, in particular to a metal fire extinguishing agent and a preparation method thereof2O3Has excellent heat and mass insulation effects, and can slow down the decomposition of the carbon layer, thereby being more efficient and stable for extinguishing the fire of metal.
Description
Technical Field
The invention relates to the technical field of fire extinguishing agent formulas, in particular to a metal fire extinguishing agent and a preparation method thereof.
Background
Class D fires refer to fires caused by burning combustible metals, for example, magnesium metal belongs to flammable and explosive dangerous goods, is easy to explode and flammable when meeting water, generates strong white light and emits high heat when burning, reacts violently with water or moisture to emit hydrogen, releases a large amount of heat to cause burning or explosion, reacts violently with chlorine, bromine, iodine, sulfur, arsenic and oxidants, has the danger of burning and explosion, and powder and air can form explosive mixtures, so that the fire extinguishing agent based on water in the prior art cannot be used for extinguishing metal fires, and how to extinguish the fires caused by magnesium metal more efficiently and more safely is an urgent problem to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to more efficiently and safely extinguish the fire caused by the magnesium metal is an urgent problem to be solved.
In order to solve the technical problems, the invention adopts the technical scheme that:
a metal fire extinguishing agent is prepared from the following raw materials in parts by weight: 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles, 15-20 parts of talcum powder, 20-30 parts of kaolin, 20-30 parts of ammonium dihydrogen phosphate and 3-5 parts of boric acid.
Furthermore, in the metal fire extinguishing agent, the particle size of each raw material is less than 900 nm.
Further, in the metal fire extinguishing agent, the wood powder is pine wood powder or fir wood powder.
The invention also relates to a preparation method of the metal fire extinguishing agent, which comprises the following steps:
step 1: uniformly mixing 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles and 20-30 parts of kaolin to obtain a first mixture;
step 2: respectively adding 15-20 parts of talcum powder and 20-30 parts of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time to obtain a second mixture;
and step 3: and fully drying the second mixture, adding 3-5 parts of boric acid, and uniformly mixing to obtain the metal fire extinguishing agent.
Further, in the preparation method of the metal fire extinguishing agent, the step 1 specifically comprises: uniformly mixing 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles and 20-30 parts of kaolin in a pressure airflow of 0.6-0.8MPa to obtain a first mixture.
Further, in the preparation method of the metal fire extinguishing agent, the step 2 is specifically as follows: and respectively adding 15-20 parts of talcum powder and 20-30 parts of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time in a pressure airflow of 0.6-0.8MPa to obtain a second mixture.
Further, in the preparation method of the metal fire extinguishing agent, the step 3 is specifically: and heating the second mixture in a vacuum drying furnace at 170-180 ℃ for 1h, adding 3-5 parts of boric acid, and uniformly mixing in a pressure air flow of 0.6-0.8MPa to obtain the metal fire extinguishing agent.
The invention has the beneficial effects that: the invention providesThe metal fire extinguishing agent is prepared by adding specific amounts of wood powder, ammonium dihydrogen phosphate and boric acid into the formula, covering the wood powder on the burning metal surface during fire extinguishing, and igniting quickly when encountering fire to form a carbon layer covering the metal surface, thereby relieving the burning of the metal, promoting wood powder carbonization by adding ammonium dihydrogen phosphate and boric acid to achieve the purpose of more efficient fire extinguishing, and B decomposed from boric acid after burning2O3The preparation method has the advantages that the boric acid does not participate in drying, and is selectively added and mixed in the last part, so that the boric acid is prevented from being converted into pyroboric acid in the drying process.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.
The invention relates to a metal fire extinguishing agent which is prepared from the following raw materials in parts by weight: 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles, 15-20 parts of talcum powder, 20-30 parts of kaolin, 20-30 parts of ammonium dihydrogen phosphate and 3-5 parts of boric acid.
Furthermore, in the metal fire extinguishing agent, the particle size of each raw material is less than 900 nm.
Further, in the metal fire extinguishing agent, the wood powder is pine wood powder or fir wood powder.
The invention also relates to a preparation method of the metal fire extinguishing agent, which comprises the following steps:
step 1: uniformly mixing 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles and 20-30 parts of kaolin to obtain a first mixture;
step 2: respectively adding 15-20 parts of talcum powder and 20-30 parts of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time to obtain a second mixture;
and step 3: and fully drying the second mixture, adding 3-5 parts of boric acid, and uniformly mixing to obtain the metal fire extinguishing agent.
Further, in the preparation method of the metal fire extinguishing agent, the step 1 specifically comprises: uniformly mixing 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles and 20-30 parts of kaolin in a pressure airflow of 0.6-0.8MPa to obtain a first mixture.
Further, in the preparation method of the metal fire extinguishing agent, the step 2 is specifically as follows: and respectively adding 15-20 parts of talcum powder and 20-30 parts of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time in a pressure airflow of 0.6-0.8MPa to obtain a second mixture.
Further, in the preparation method of the metal fire extinguishing agent, the step 3 is specifically: and heating the second mixture in a vacuum drying furnace at 170-180 ℃ for 1h, adding 3-5 parts of boric acid, and uniformly mixing in a pressure air flow of 0.6-0.8MPa to obtain the metal fire extinguishing agent.
Example 1
A preparation method of a metal fire extinguishing agent comprises the following steps:
step 1: uniformly mixing 65kg of pine wood powder, 25kg of surfactant F127, 25kg of silica particles and 25kg of kaolin in a pressure airflow of 0.7MPa to obtain a first mixture;
step 2: respectively adding 17kg of talcum powder and 25kg of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time in a pressure airflow of 0.7MPa to obtain a second mixture;
and step 3: and heating the second mixture in a vacuum drying furnace at 175 ℃ for 1h, adding 4kg of boric acid, and uniformly mixing in a pressure air flow of 0.7MPa to obtain the metal fire extinguishing agent.
The particle size of each raw material of the metal fire extinguishing agent is less than 900 nm.
Example 2
A preparation method of a metal fire extinguishing agent comprises the following steps:
step 1: uniformly mixing 60kg of shiraia meal, 20kg of surfactant F127, 20kg of silica particles and 20kg of kaolin in a pressure airflow of 0.6MPa to obtain a first mixture;
step 2: respectively adding 15kg of talcum powder and 20kg of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time in a pressure airflow of 0.6MPa to obtain a second mixture;
and step 3: and heating the second mixture in a vacuum drying furnace at 170 ℃ for 1h, adding 3kg of boric acid, and uniformly mixing in a pressure airflow of 0.6MPa to obtain the metal fire extinguishing agent.
The particle size of each raw material of the metal fire extinguishing agent is less than 900 nm.
Example 3
A preparation method of a metal fire extinguishing agent comprises the following steps:
step 1: uniformly mixing 70kg of pine wood powder, 30kg of surfactant F127, 30kg of silica particles and 30kg of kaolin in a pressure airflow of 0.8MPa to obtain a first mixture;
step 2: respectively adding 20kg of talcum powder and 30kg of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time in a pressure airflow of 0.8MPa to obtain a second mixture;
and step 3: and heating the second mixture in a vacuum drying furnace at 180 ℃ for 1h, adding 5kg of boric acid, and uniformly mixing in a pressure airflow of 0.8MPa to obtain the metal fire extinguishing agent.
The particle size of each raw material of the metal fire extinguishing agent is less than 900 nm.
Comparative example
A commercially available 7150 fire extinguisher.
The metallic fire extinguishing agents obtained in the above examples 1 to 3 and the commercially available 7150 fire extinguishing agent were subjected to experiments:
the metallic fire extinguishing agent and the 7150 fire extinguishing agent obtained in the above examples 1 to 3 were respectively charged into a fire extinguisher, the metallic magnesium was equally divided into 4 parts and 4 parts of the metallic magnesium was ignited, and the metallic fire extinguishing agent obtained in the above examples 1 to 3 and the 7150 fire extinguishing agent were simultaneously sprayed on the surface of the ignited metallic magnesium by opening the valve of the fire extinguisher, respectively, and the change of the fire behavior of the metallic magnesium was observed.
In the experimental results, the fire extinguishing agents of examples 1 to 3, which were obtained from the above examples, and 7150, which were both successful in extinguishing fire, were different in the amount by volume of the fire extinguishing agent sprayed to extinguish the fire, and the ratio of the amount of the fire extinguishing agent consumed by the fire extinguishing agents of examples 1, 2, 3 and 7150 was approximately 1: 1.3: 1.1: 2.3, which was obtained by calculating the volume of the consumed fire extinguishing agent.
It can be seen that although the fire extinguishing agents of examples 1, 2, 3 and 7150 can successfully extinguish the fire of the ignited magnesium metal, the consumption of the fire extinguishing agent is significantly less than that of the commercially available 7150 fire extinguishing agent in terms of the consumption of the fire extinguishing agent.
In conclusion, the metal fire extinguishing agent provided by the invention has the advantages that the specific amounts of wood powder, ammonium dihydrogen phosphate and boric acid are added in the formula, the wood powder is used for covering the burning metal surface during fire extinguishing, the wood powder is rapidly ignited when meeting fire, a carbon layer is formed to cover the metal surface, the burning of the metal is relieved, the carbonization of the wood powder can be promoted by adding the ammonium dihydrogen phosphate and the boric acid, the aim of extinguishing the fire with higher efficiency is achieved, and B decomposed from the boric acid after burning is achieved2O3The preparation method has the advantages that the boric acid does not participate in drying, and is selectively added and mixed in the last part, so that the boric acid is prevented from being converted into pyroboric acid in the drying process.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.
Claims (7)
1. The metal fire extinguishing agent is characterized by being prepared from the following raw materials in parts by weight: 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles, 15-20 parts of talcum powder, 20-30 parts of kaolin, 20-30 parts of ammonium dihydrogen phosphate and 3-5 parts of boric acid.
2. The metallic fire extinguishing agent according to claim 1, wherein each raw material has a particle size of less than 900 nm.
3. The metal fire extinguishing agent according to claim 1, wherein the wood flour is pine wood flour or cedar wood flour.
4. The preparation method of the metal fire extinguishing agent is characterized by comprising the following steps:
step 1: uniformly mixing 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles and 20-30 parts of kaolin to obtain a first mixture;
step 2: respectively adding 15-20 parts of talcum powder and 20-30 parts of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time to obtain a second mixture;
and step 3: and fully drying the second mixture, adding 3-5 parts of boric acid, and uniformly mixing to obtain the metal fire extinguishing agent.
5. The preparation method of the metal fire extinguishing agent according to claim 4, wherein the step 1 is specifically: uniformly mixing 60-70 parts of wood powder, 20-30 parts of surfactant F127, 20-30 parts of silica particles and 20-30 parts of kaolin in a pressure airflow of 0.6-0.8MPa to obtain a first mixture.
6. The method for preparing the metal fire extinguishing agent according to claim 4, wherein the step 2 is specifically: and respectively adding 15-20 parts of talcum powder and 20-30 parts of ammonium dihydrogen phosphate into the first mixture, and mixing for the second time in a pressure airflow of 0.6-0.8MPa to obtain a second mixture.
7. The method for preparing the metal fire extinguishing agent according to claim 4, wherein the step 3 is specifically: and heating the second mixture in a vacuum drying furnace at 170-180 ℃ for 1h, adding 3-5 parts of boric acid, and uniformly mixing in a pressure air flow of 0.6-0.8MPa to obtain the metal fire extinguishing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110289161.7A CN113018750A (en) | 2021-03-18 | 2021-03-18 | Metal fire extinguishing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110289161.7A CN113018750A (en) | 2021-03-18 | 2021-03-18 | Metal fire extinguishing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113018750A true CN113018750A (en) | 2021-06-25 |
Family
ID=76472419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110289161.7A Pending CN113018750A (en) | 2021-03-18 | 2021-03-18 | Metal fire extinguishing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113018750A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255390A (en) * | 1999-11-08 | 2000-06-07 | 杨大为 | Water-soluble fire-extinguishing chemical |
| DE102009053186A1 (en) * | 2009-11-08 | 2011-05-12 | Caldic Deutschland Chemie Bv | Fire-extinguishing compositions, in particular dry powder mixtures, process for their preparation and use |
| CN103751940A (en) * | 2013-12-27 | 2014-04-30 | 山东环绿康新材料科技有限公司 | Application of multielement class-D dry powder extinguishing agent in extinguishment of metallic magnesium and metallic sodium fires |
| CN107715364A (en) * | 2017-11-10 | 2018-02-23 | 蚌埠市龙泰消防有限公司 | A kind of smoke-inhibiting type powder extinguishing agent and preparation method thereof |
-
2021
- 2021-03-18 CN CN202110289161.7A patent/CN113018750A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255390A (en) * | 1999-11-08 | 2000-06-07 | 杨大为 | Water-soluble fire-extinguishing chemical |
| DE102009053186A1 (en) * | 2009-11-08 | 2011-05-12 | Caldic Deutschland Chemie Bv | Fire-extinguishing compositions, in particular dry powder mixtures, process for their preparation and use |
| CN103751940A (en) * | 2013-12-27 | 2014-04-30 | 山东环绿康新材料科技有限公司 | Application of multielement class-D dry powder extinguishing agent in extinguishment of metallic magnesium and metallic sodium fires |
| CN107715364A (en) * | 2017-11-10 | 2018-02-23 | 蚌埠市龙泰消防有限公司 | A kind of smoke-inhibiting type powder extinguishing agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9662523B2 (en) | Metallic oxysalt fire extinguishing composition | |
| CN103146344A (en) | Aqueous inorganic and fireproof foam adhesive | |
| CN104210002B (en) | A kind of composite flame-retardant agent, preparation method and its usage | |
| CN103751940A (en) | Application of multielement class-D dry powder extinguishing agent in extinguishment of metallic magnesium and metallic sodium fires | |
| CN105754239A (en) | Preparation method of ceramic composite modified resin coated EPS foam flame-retardant thermal-insulation material | |
| KR20220083140A (en) | Fire extinguishing powder for suppression of metal and metal-ion batteries and manufacturing method thereof | |
| CN113018750A (en) | Metal fire extinguishing agent and preparation method thereof | |
| WO2019128427A1 (en) | Oxygen candle starting mix and preparation method therefor | |
| CN109321021B (en) | A kind of fireproof expanded vermiculite and preparation method thereof | |
| CN111450462A (en) | Fire extinguishing agent for zirconium metal fire and preparation and use methods thereof | |
| WO2019062076A1 (en) | Hot aerosol fire extinguishing composition and preparation method therefor | |
| CN102617936A (en) | Preparation method for halogen-free flame-retardant rubber composite | |
| CN107497089B (en) | A kind of compound type aerosol extinguishing agent and preparation method thereof | |
| CN103388486B (en) | A kind of coal mine with excellent flame retardant properties of spray plugging and wind prevention fire extinguishing material and its preparation method | |
| CN112923804B (en) | High-safety environment-friendly nitrate fireworks and manufacturing method thereof | |
| CN103333424B (en) | Halogen-free environment-friendly polystyrene flame retardant and preparation method thereof | |
| CN102211344A (en) | High-flame-retardant organic phosphate fire-proof plate capable of insulating heat and oxygen and suppressing smoke and preparation method thereof | |
| CN110364360A (en) | Super-pressure flame-retardant electrolyte and preparation method thereof | |
| CN107551443B (en) | Preparation method of ABC dry powder extinguishing agent | |
| CN108003832B (en) | Environmentally friendly adhesive and its preparation method and application | |
| CN103819897B (en) | Nitrogen flame retardant, preparation thereof and flame-retardant silicone rubber compound | |
| CN115340082A (en) | Inert carbon and preparation method and application thereof | |
| CN103388485B (en) | A kind of coal mining spraying class fireproofing extinguishing materials and preparation method thereof | |
| CN113018751A (en) | Special extinguishing agent for lithium metal and preparation method thereof | |
| CN110283521A (en) | A kind of intumescent flammable substrate surface fireproof coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210625 |