CN108837365A - A kind of preparation method of composite dry powder extinguishing chemical - Google Patents
A kind of preparation method of composite dry powder extinguishing chemical Download PDFInfo
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- CN108837365A CN108837365A CN201811078821.1A CN201811078821A CN108837365A CN 108837365 A CN108837365 A CN 108837365A CN 201811078821 A CN201811078821 A CN 201811078821A CN 108837365 A CN108837365 A CN 108837365A
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- dry powder
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- extinguishing chemical
- uniformly mixed
- composite dry
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- 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
Abstract
The present invention relates to extinguishing chemical technical fields, specifically disclose a kind of preparation method of composite dry powder extinguishing chemical, and the preparation method includes the following steps：Ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；Diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, sulphation enuatrol is added under stirring, heating stirring is filtered, and washing dry, pulverize to obtain second material；Methyl-silicone oil, water are uniformly mixed, acetone is added and stirs evenly, obtain mixed material；Mixed material atomization is sprayed into the second material in stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate is added, and vacuum crushes, and obtains composite dry powder extinguishing chemical.The dry powder fire extinguishing agent that the present invention obtains has excellent anti-re-ignition performance.
Description
Technical field
The present invention relates to extinguishing chemical technical fields, and in particular to a kind of preparation method of composite dry powder extinguishing chemical.
Background technique
Halon fire agent has the characteristics that low cost, high efficiency, but the main component of halon fire agent is alkyl halide, is made
It serious destruction is generated to atmospheric ozone layer with rear, therefore stops using, not very ideal substitute is used for ever since
Fire-fighting fire extinguishing.
The preferable product of more and effect at present is fire-extinguishing dry powder, and primary raw material is ammonium phosphate, ammonium carbonate etc., pole
It is hygroscopic and agglomerate, it is unfavorable for using and saving for dry powder, and anti-re-ignition effect is also undesirable.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of preparation methods of composite dry powder extinguishing chemical.
The dry powder fire extinguishing agent that the present invention obtains has excellent anti-re-ignition performance.
A kind of preparation method of composite dry powder extinguishing chemical proposed by the present invention, the preparation method include the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, are added under stirring
Sulphation enuatrol, heating stirring, is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；By mixed material mist
Change the second material sprayed into stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate, vacuum powder is added
It is broken, obtain composite dry powder extinguishing chemical.
Preferably, in S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre mass ratio be 50-60：20-28：10-13.
Preferably, in S1, the homogenization time is 25-35min, homogenization pressure 10-15kPa.
Preferably, in S2, first material, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant solution mass ratio be 1：
0.2-0.5：0.1-0.3：0.02-0.06.
Preferably, in S2, it is warming up to 80-87 DEG C.
Preferably, in S2, enuatrol is sulphation enuatrol.
Preferably, in S3, it is warming up to 90-96 DEG C；Vacuum is crushed to grain diameter less than 15um.
Preferably, in S3, second material, mica powder, magnesium stearate mass ratio be 1：0.2-0.5：0.01-0.04.
The present invention mixes ammonium carbonate, potassium dihydrogen phosphate, quartz fibre equal in the preparation process of composite dry powder extinguishing chemical
Homogenization after even has preferably extinguishing effect, adds fluorocarbon surfactant, with extremely low surface energy, and stretches
To the outside of dry powder, the lower-surface-free-energy surface of more regular arrangement is formed, soak flammable liquid can not, improves dry powder in liquid
The stability on surface will not be diluted sedimentation, and then improve anti-re-ignition effect of the invention, and auxiliary lotus leaf hydrophobing agent strengthens
Dry powder hydrophobic properties of the surface make the present invention have very strong hydrophobic and oleophobic property, and then the present invention has excellent stable storing
Property and anti-re-ignition performance；In step 3, mixed material atomization is sprayed into the second material in stirring, can effectively be mentioned
High mobility and dispersivity of the invention.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of composite dry powder extinguishing chemical, the preparation method include the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, are added under stirring
Sulphation enuatrol, heating stirring, is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；By mixed material mist
Change the second material sprayed into stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate, vacuum powder is added
It is broken, obtain composite dry powder extinguishing chemical.
Embodiment 2
A kind of preparation method of composite dry powder extinguishing chemical, the preparation method include the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, are added under stirring
Sulphation enuatrol, heating stirring, is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；By mixed material mist
Change the second material sprayed into stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate, vacuum powder is added
It is broken, obtain composite dry powder extinguishing chemical；
Wherein, in S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre mass ratio be 52：23：11.
Embodiment 3
A kind of preparation method of composite dry powder extinguishing chemical, the preparation method include the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, are added under stirring
Sulphation enuatrol, heating stirring, is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；By mixed material mist
Change the second material sprayed into stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate, vacuum powder is added
It is broken, obtain composite dry powder extinguishing chemical；
Wherein, in S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre mass ratio be 55：25：12；
In S1, the homogenization time is 30min, homogenization pressure 13kPa；
In S2, first material, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant solution mass ratio be 1：0.3：
0.2：0.04；
In S2, it is warming up to 85 DEG C；
In S2, enuatrol is sulphation enuatrol；
In S3, it is warming up to 93 DEG C；Vacuum is crushed to grain diameter less than 15um；
In S3, second material, mica powder, magnesium stearate mass ratio be 1：0.4：0.02.
Embodiment 4
A kind of preparation method of composite dry powder extinguishing chemical, the preparation method include the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, are added under stirring
Sulphation enuatrol, heating stirring, is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；By mixed material mist
Change the second material sprayed into stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate, vacuum powder is added
It is broken, obtain composite dry powder extinguishing chemical；
Wherein, in S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre mass ratio be 50：28：10；
In S1, the homogenization time is 35min, homogenization pressure 10kPa；
In S2, first material, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant solution mass ratio be 1：0.5：
0.1：0.06；
In S2, it is warming up to 80 DEG C；
In S2, enuatrol is sulphation enuatrol；
In S3, it is warming up to 96 DEG C；Vacuum is crushed to grain diameter less than 15um；
In S3, second material, mica powder, magnesium stearate mass ratio be 1：0.2：0.04.
Embodiment 5
A kind of preparation method of composite dry powder extinguishing chemical, the preparation method include the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, are added under stirring
Sulphation enuatrol, heating stirring, is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；By mixed material mist
Change the second material sprayed into stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate, vacuum powder is added
It is broken, obtain composite dry powder extinguishing chemical；
Wherein, in S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre mass ratio be 60：20：13；
In S1, the homogenization time is 25min, homogenization pressure 15kPa；
In S2, first material, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant solution mass ratio be 1：0.2：
0.3：0.02；
In S2, it is warming up to 87 DEG C；
In S2, enuatrol is sulphation enuatrol；
In S3, it is warming up to 90 DEG C；Vacuum is crushed to grain diameter less than 15um；
In S3, second material, mica powder, magnesium stearate mass ratio be 1：0.5：0.01.
Test example 1
The dry powder fire extinguishing agent to the obtained dry powder fire extinguishing agent of embodiment 1-5 and on the market carries out anti-re-ignition performance inspection respectively
It surveys, is successively denoted as test group 1-5 and control group, as a result such as following table：
| Project | It puts out a fire number (secondary) | Re-ignition number (secondary) | Anti- recrudescence rate (%) |
| Test group 1 | 100 | 2 | 98 |
| Test group 2 | 100 | 1 | 99 |
| Test group 3 | 100 | 4 | 96 |
| Test group 4 | 100 | 0 | 100 |
| Test group 5 | 100 | 0 | 100 |
| Control group | 100 | 13 | 87 |
As can be seen from the above table, compared with the existing technology, anti-re-ignition superior performance of the invention.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of composite dry powder extinguishing chemical, which is characterized in that the preparation method includes the following steps：
S1, ammonium carbonate, potassium dihydrogen phosphate, quartz fibre are uniformly mixed, homogenization obtains first material；
S2, diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant, first material are uniformly mixed, sulfuric acid is added under stirring
Change enuatrol, heating stirring is filtered, and washing dry, pulverize to obtain second material；
S3, methyl-silicone oil, water are uniformly mixed, add acetone and stir evenly, obtains mixed material；Mixed material is atomized and is sprayed
Entering the second material in stirring, heating is uniformly mixed, goes to remove water, and mica powder, magnesium stearate is added, and vacuum crushes,
Obtain composite dry powder extinguishing chemical.
2. the preparation method of composite dry powder extinguishing chemical according to claim 1, which is characterized in that in S1, ammonium carbonate, di(2-ethylhexyl)phosphate
Hydrogen potassium, quartz fibre mass ratio be 50-60：20-28：10-13.
3. the preparation method of composite dry powder extinguishing chemical according to claim 1 or claim 2, which is characterized in that in S1, when homogenization
Between be 25-35min, homogenization pressure 10-15kPa.
4. the preparation method of composite dry powder extinguishing chemical according to claim 1 or claim 2, which is characterized in that in S2, first material,
Diatomite, lotus leaf hydrophobing agent, fluorocarbon surfactant solution mass ratio be 1：0.2-0.5：0.1-0.3：0.02-0.06.
5. the preparation method of composite dry powder extinguishing chemical according to claim 1 or claim 2, which is characterized in that in S2, be warming up to 80-
87℃。
6. the preparation method of composite dry powder extinguishing chemical according to claim 1 or claim 2, which is characterized in that in S2, enuatrol is sulphur
It is acidified enuatrol.
7. the preparation method of composite dry powder extinguishing chemical according to claim 1 or claim 2, which is characterized in that in S3, be warming up to 90-
96℃；Vacuum is crushed to grain diameter less than 15um.
8. the preparation method of composite dry powder extinguishing chemical according to claim 1 or claim 2, which is characterized in that in S3, second material,
Mica powder, magnesium stearate mass ratio be 1：0.2-0.5：0.01-0.04.
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| CN201811078821.1A CN108837365A (en) | 2018-09-17 | 2018-09-17 | A kind of preparation method of composite dry powder extinguishing chemical |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450462A (en) * | 2020-04-29 | 2020-07-28 | 山东环绿康新材料科技有限公司 | Fire extinguishing agent for zirconium metal fire and preparation and use methods thereof |
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| CN111450462A (en) * | 2020-04-29 | 2020-07-28 | 山东环绿康新材料科技有限公司 | Fire extinguishing agent for zirconium metal fire and preparation and use methods thereof |
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