CN107694001A - A kind of hot-gas sol fire extinguishing agent and preparation method thereof - Google Patents
A kind of hot-gas sol fire extinguishing agent and preparation method thereof Download PDFInfo
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- CN107694001A CN107694001A CN201710905048.0A CN201710905048A CN107694001A CN 107694001 A CN107694001 A CN 107694001A CN 201710905048 A CN201710905048 A CN 201710905048A CN 107694001 A CN107694001 A CN 107694001A
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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
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
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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
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Abstract
The invention discloses a kind of hot-gas sol fire extinguishing agent and preparation method thereof, and it includes according to parts by weight percentage：19.6%~31.5% calcium bichromate, 10.8%~22.3% six calcium borides, 0.9%~5.6% xylose, 11.5%~23.6% carbon dust, 1.3%~4.2% nanometer carboxymethyl cellulose, 11.8%~27.5% calcium bicarbonate, 12.1%~20.2% cupric oxide, 0.9%~3.7% ethylenediamine tetra-acetic acid and 1.3%~5.6% epoxy resin.There is obvious synergy between the aerosol extinguishing agent each component of the present invention, so that aerosol extinguishing agent has good extinguishing ability and fire-fighting efficiency on the whole, have the advantages that dosage is few, blow-off velocity is fast, fire-fighting efficiency is high, the fire extinguishing particularly suitable for oils burning things which may cause a fire disaster.
Description
Technical field
The present invention relates to fire extinguishing field, more particularly to a kind of hot-gas sol fire extinguishing agent and preparation method thereof.
Background technology
Currently, it is common to use extinguishing chemical be broadly divided into following several classes：Water base class extinguishing chemical, gas extinguishing chemical, powder
Body class extinguishing chemical, aerosol class extinguishing chemical and halon fire agent, all kinds of extinguishing chemical scope of applications are not quite similar, performance indications
Respectively there is quality, wherein：Halon fire agent has the characteristics of good extinguishing effect, fire-fighting efficiency is high.
But the chemical composition of the destruction larger to ozone layer in halon fire agent be present, since 1987, respectively
State exists《Concern the Montreal Protocol book for destroying ozone material》Under limitation, the production and use of halon fire agent are phased out,
The Chinese government also stopped 1211,1301 extinguishing chemicals of production comprehensively from 2010.
Under the background that halon fire agent is eliminated, other class extinguishing chemicals have obtained wider development and application, water base class
The principle of extinguishing chemical mainly reaches fire extinguishing purpose by the cooling of water mists, asphyxia and isolation heat radiation effect；Gas go out
Fiery agent is mainly to reach the purpose of asphyxia fire by spraying the oxygen content of inert gas reduction flame range；Powder class extinguishing chemical is main
Principle is to act on down ejecting powder by gases at high pressure, consumes the free radical in flame, generation inert gas etc. and reaches fire extinguishing
Purpose.But the presence of hyperbaric environment is required for during these extinguishing chemical uses, cause equipment volume larger, storage uses
During have physical explosion dangerous, in document " safety analysis of gas extinguishing system ", analyze gas extinguishing system
Danger.
Existing aerosol class extinguishing chemical can be divided mainly into S types and K-type, and this kind of extinguishing chemical mainly utilizes redox reaction
The inert gas of release, free radical etc. act on flame range, are gone out by the chemical reaction of the asphyxia of inert gas, free radical to reach
The purpose of fire.Its deficiency is mainly shown：Redox reaction thermal discharge is big so that aerosol fire-extinguishing device structure spout temperature
Degree is higher；Some aerosol extinguishing agents generation aerosol is less efficient, time length, is unfavorable for controlling initial fire disaster in time.
Therefore, prior art needs further improvement and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of hot-gas sol fire extinguishing agent and its system
Preparation Method, on the premise of cost is reduced, improve fire-fighting efficiency.
In order to solve the above technical problems, technical solution of the present invention includes：
A kind of hot-gas sol fire extinguishing agent, it includes according to parts by weight percentage：
Described hot-gas sol fire extinguishing agent, it includes according to parts by weight percentage：
Described hot-gas sol fire extinguishing agent, wherein, with dioctyl phthalate to make solvent or diluent dilute using preceding for above-mentioned epoxy resin
Release, wherein, the mass ratio of epoxy resin and dioctyl phthalate solvent or diluent is 1-3:1.
A kind of method for preparing the hot-gas sol fire extinguishing agent, it comprises the following steps：
A, above-mentioned raw materials component is weighed respectively in corresponding ratio, and taken material component is used into grinding machine powder grinds respectively
Body；Then, 500 mesh sieves are crossed, collect the powder of sieving, it is standby；
The powder of collected sieving is separately added into the charging tray of rotary pelleting machine, the 1/3 of epoxy resin total amount is added B,
To the fluid reservoir of rotary pelleting machine；Then, start rotary pelleting machine, after material is sufficiently mixed uniformly, open rotary pelleting machine
Spray pump, be granulated to obtain material；
C, above-mentioned material is dried in explosion-proof baking oven, explosion-proof baking oven according to 15 DEG C/h speed from room temperature to
40 DEG C, then the freeze-day with constant temperature at 40 DEG C, until material water ratio is less than or equal to 0.8%, obtains dry material；
D, gained dry material is entered into mixer, is then diluted remaining epoxy resin with dioctyl phthalate,
Epoxy resin adds the uniform mixing of mixer after dilution, obtains semi-finished product；
E, obtained semi-finished product are loaded in cartridge case, is placed on press bench, is compacted, obtains under 5MPa pressure
Above-mentioned aerosol type extinguishing chemical.
Described preparation method, wherein, above-mentioned steps A specifically also includes：Collect in sieving pot and tail over material incorporation
In next batch solid material, and fill back grinding machine grinding.
Described preparation method, wherein, above-mentioned steps B specifically also includes：The whiff pressure of rotary pelleting machine is
0.5Mp, whitewashing revolution speed are 5~25rmin-1, feeding machine rotating speed is 5~25rmin-1, dilution zero density is 0.64g/
Ml, angle of repose are 32 °；The size controlling index of granulation is that final 28-32 purposes must expect that yield is more than 90%.
Described preparation method, wherein, the cartridge case internal diameter in above-mentioned steps E is 40mm, high 100mm, charge 50-
100g。
The invention provides a kind of hot-gas sol fire extinguishing agent and preparation method thereof, with dosage is few, blow-off velocity is fast, goes out
The advantages that fiery efficiency high, particularly suitable for the fire extinguishing of oils burning things which may cause a fire disaster, containing oxidant, fuel agent, combustionregulator, additive, change
Property agent and adhesive；Wherein, oxidant is the mixture of calcium bichromate and six calcium borides, and fuel agent is xylose and carbon dust, is burnt
Conditioning agent is nanometer carboxymethyl cellulose, and additive is calcium bicarbonate and cupric oxide, and modifying agent is ethylenediamine tetra-acetic acid, adhesive
For epoxy resin.Calcium bicarbonate in composition is thermally decomposed at high temperature, discharges substantial amounts of carbon dioxide, and carbon dioxide is used
In fire extinguishing；In calcium bicarbonate and calcium carbonate (calcium bicarbonate is by thermal decomposition product) by thermal decomposition process (calcium bicarbonate and calcium carbonate
Thermally decomposed, a part carried out in aerosol fire-extinguishing device, a part after ejection again catching fire point carry out) in, it is necessary to
Substantial amounts of heat is absorbed, the flame temperature of ignition point can both be reduced, auxiliary fire extinguishing, advantageously reduces aerosol fire-extinguishing device again
Nozzle temperature, the safety that extinguishing device operates with people is effectively ensured, brings and use upper facility and safety.Foregoing carbon
Sour hydrogen calcium and calcium carbonate are by thermal decomposition process, and the reduction of ignition temperature caused by heat absorption, this will further result in comburant burning
During be used for the heat of gasifying combustibles molecule and the incendivity molecular cleavage that will gasify into free radical and reduce so that catch fire
The speed of point (continuation) combustion reaction is necessarily suppressed.
Also, original cupric oxide in the calcium oxide and component generated after being decomposed due to calcium bicarbonate, can be with comburant
In carbon chemically react, generate carbon dioxide.That is, the combustible component (carbon dust) in comburant is changed into non-combustible
Inert gas (carbon dioxide) is burnt, is advantageous to the burning velocity of retarded combustion thing, reduces the oxygen content of combustion space, promote fire extinguishing
The raising of speed and efficiency.In addition, comburant (that is, process for maintaining combustion reaction persistently to carry out during catching fire
In), it will it is constant to be cracked to form substantial amounts of, indispensable H, O, OH isoreactivity base of combustion continuation progress institute
Group.And decomposed under calcium bicarbonate high temperature, original cupric oxide in the calcium oxide and component of generation, will respectively with it is above-mentioned these
Active group (that is, H, O, OH isoreactivity group) chemically reacts, so as to which part consumes these active groups, suppression
The reaction between these active groups is made, and then interrupts pyric chain, suppress continuing for flame combustion.
Oxidant and reducing agent in composition is in aerosol fire-extinguishing device, the electric starter through aerosol fire-extinguishing device
After igniting, violent redox reaction will occur, and discharge substantial amounts of heat, calcium bichromate, six calcium borides in composition,
Xylose and carbon dust then begin to imperfect combustion, produce substantial amounts of flue gas, and aerosol is formed after being mixed with air；In composition
Nanometer carboxymethylcellulose component, because its is flammable, ignition point is low, and specific surface area is big, is mainly used as combustionregulator.That is,
It is fast in container to promote aerosol fire-extinguishing device preliminary work for igniting/accelerating the burning velocity of combustible component in composition
Speed forms substantial amounts of aerosol.In hot-gas sol fire extinguishing agent composition, generated solid inorganic oxides are decomposed at high temperature
Particulate, the body surface that catches fire is covered in, further functions as the effect for the body surface starvation that catches fire, promote flame to be stopped up because of anoxic
Cease the quickening of extinguishing process.
Embodiment
The invention provides a kind of hot-gas sol fire extinguishing agent and preparation method thereof, to make the purpose of the present invention, technical scheme
And effect is clearer, clear and definite, the present invention is described in more detail below.It should be appreciated that specific implementation described herein
Example is not intended to limit the present invention only to explain the present invention.
The invention provides a kind of hot-gas sol fire extinguishing agent, and it includes according to parts by weight percentage：19.6%~31.5%
Calcium bichromate, 10.8%~22.3% six calcium borides, 0.9%~5.6% xylose, 11.5%~23.6% carbon dust,
1.3%~4.2% nanometer carboxymethyl cellulose, 11.8%~27.5% calcium bicarbonate, 12.1%~20.2% oxidation
Copper, 0.9%~3.7% ethylenediamine tetra-acetic acid and 1.3%~5.6% epoxy resin.
Certainly it is further preferred that it includes according to parts by weight percentage：20.1%~29.5% calcium bichromate,
11.3%~20.6% six calcium borides, 1.1%~5.3% xylose, 13.2%~22.1% carbon dust,；1.6%~
4.1% nanometer carboxymethyl cellulose, 12.4%~24.3% calcium bicarbonate, 2.8%~18.6% cupric oxide, 1.1%
~3.5% ethylenediamine tetra-acetic acid and 1.6%~5.2% epoxy resin.
Further, above-mentioned epoxy resin makees solvent or diluent dilution using preceding with dioctyl phthalate, wherein, epoxy resin
Mass ratio with dioctyl phthalate solvent or diluent is 1-3:1, both it had been easy to the bonding of extinguishing chemical, compressing operation, had had again good
Good compressing quality.
Present invention also offers a kind of method for preparing above-mentioned hot-gas sol fire extinguishing agent, it comprises the following steps：
Step 1, above-mentioned raw materials component is weighed respectively in corresponding ratio, and taken material component is used into grinding machine grinding respectively
Into powder；Then, 500 mesh sieves are crossed, collect the powder of sieving, it is standby；
Step 2, the powder of collected sieving is separately added into the charging tray of rotary pelleting machine, by the 1/3 of epoxy resin total amount
It is added to the fluid reservoir of rotary pelleting machine；Then, start rotary pelleting machine, after material is sufficiently mixed uniformly, opens rotation and make
The spray pump of grain machine, is granulated to obtain material；
Step 3, above-mentioned material is dried in explosion-proof baking oven, explosion-proof baking oven is according to 15 DEG C/h speed from room temperature
40 DEG C are warming up to, then the freeze-day with constant temperature at 40 DEG C, until material water ratio is less than or equal to 0.8%, obtain dry material；
Step 4, gained dry material is entered into mixer, then carried out remaining epoxy resin with dioctyl phthalate
Dilution, epoxy resin adds the uniform mixing of mixer after dilution, obtains semi-finished product；
Step 5, obtained semi-finished product are loaded in cartridge case, is placed on press bench, is pushed in 5MPa pressure
It is real, obtain above-mentioned aerosol type extinguishing chemical, it is preferred that cartridge case internal diameter is 40mm, high 100mm, charge 50-100g.
And above-mentioned steps one specifically also include：Collect in sieving pot and tail over material incorporation next batch solid material
In, and fill back grinding machine grinding.Above-mentioned steps two specifically also include：The whiff pressure of rotary pelleting machine is 0.5Mp, spray pump
Rotating speed is 5~25rmin-1, feeding machine rotating speed is 5~25rmin-1, dilution zero density is 0.64g/ml, and angle of repose is
32°；The size controlling index of granulation is that final 28-32 purposes must expect that yield is more than 90%.Cartridge case internal diameter in above-mentioned steps five
For 40mm, high 100mm, charge 50-100g.
In order to which the present invention is described in further detail, it is exemplified below more detailed embodiment and illustrates.Following implementation
Example, the fire suppression applications experiment of hot-gas sol fire extinguishing agent product, using GA 499.1-2010《GAFES》1st
Point：Method as defined in condensed aerosol fire extinguishing device is carried out, and the usage amount of extinguishing chemical is 50g.
Embodiment 1
The composition of raw materials of hot-gas sol fire extinguishing agent is：By mass fraction, calcium bichromate 21%, six calcium borides 15%, xylose
3%th, carbon dust 19%, nanometer carboxymethyl cellulose 3%, calcium bicarbonate 21%, cupric oxide 13%, ethylenediamine tetra-acetic acid 2%, epoxy
Resin 3% (presses 1:1 mass ratio, add dioctyl phthalate and make solvent or diluent dilution).
Compressing product is fitted into Compact Aerosol extinguishing device (with one piece of cartridge case), loads electric starter (gas
Cooling agent, not compressed gas are not added with aerosol fire extinguisher), it is 0.1m to carry out implementing area2The fire fighting test of food tray, fuel
For business level normal heptane.Product quality used in fire fighting test is 50g, and experimental result is shown in Table 1.
Embodiment 2
The composition of raw materials of hot-gas sol fire extinguishing agent is：By mass fraction, calcium bichromate 22%, six calcium borides 12%, xylose
4%th, carbon dust 18%, nanometer carboxymethyl cellulose 3%, calcium bicarbonate 20%, cupric oxide 14%, ethylenediamine tetra-acetic acid 3%, epoxy
Resin 4% (presses 1:3 mass ratio, add dioctyl phthalate and make solvent or diluent dilution).
Compressing product is fitted into Compact Aerosol extinguishing device (with one piece of cartridge case), loads electric starter (gas
Cooling agent, not compressed gas are not added with aerosol fire extinguisher), it is 0.1m to carry out implementing area2The fire fighting test of food tray, fuel
For business level normal heptane.Product quality used in fire fighting test is 50g, and experimental result is shown in Table 1.
Embodiment 3
The composition of raw materials of hot-gas sol fire extinguishing agent is：By mass fraction, calcium bichromate 21%, six calcium borides 12%, xylose
3%th, carbon dust 19%, nanometer carboxymethyl cellulose 3%, calcium bicarbonate 20%, cupric oxide 16%, ethylenediamine tetra-acetic acid 3%, epoxy
Resin 3% (presses 1:2 mass ratio, add dioctyl phthalate and make solvent or diluent dilution).
Compressing product is fitted into Compact Aerosol extinguishing device (with one piece of cartridge case), loads electric starter (gas
Cooling agent, not compressed gas are not added with aerosol fire extinguisher), it is 0.1m to carry out implementing area2The fire fighting test of food tray, fuel
For business level normal heptane.Product quality used in fire fighting test is 50g, and experimental result is shown in Table 1.
Embodiment 4
The composition of raw materials of hot-gas sol fire extinguishing agent is：By mass fraction, calcium bichromate 23%, six calcium borides 12%, xylose
3%th, carbon dust 20%, nanometer carboxymethyl cellulose 2%, calcium bicarbonate 17%, cupric oxide 17%, ethylenediamine tetra-acetic acid 2%, epoxy
Resin 4% (presses 1:1.5 mass ratio, add dioctyl phthalate and make solvent or diluent dilution).
Compressing product is fitted into Compact Aerosol extinguishing device (with one piece of cartridge case), loads electric starter (gas
Cooling agent, not compressed gas are not added with aerosol fire extinguisher), it is 0.1m to carry out implementing area2The fire fighting test of food tray, fuel
For business level normal heptane.Product quality used in fire fighting test is 50g, and experimental result see the table below 1.
Comparative example 1
Extinguishing chemical is commercially available S types extinguishing chemical, and quality used in fire fighting test is 50g.
Comparative example 2
Extinguishing chemical is commercially available K-type extinguishing chemical, and quality used in fire fighting test is 50g.
Table 1 is the result that embodiment 1- embodiments 4 and comparative example 1, comparative example 2 carry out fire extinguishing contrast test
The table of comparisons.
Table 1
It is commercially available higher than same type as can be seen that the fire extinguishing success rate of embodiment 1- embodiments 4 is 100% from upper table 1
K-type extinguishing chemical and commercially available S types extinguishing chemical product (average out to 62.5%).
Aerosol sustained firing time average required for embodiment 1- embodiments 4 are put out a fire is about 12.4s, same type
Commercially available K-type extinguishing chemical and commercially available S types extinguishing chemical product fire extinguishing required for aerosol sustained firing time average be about
19.1s.Show, embodiment 1- embodiments 4 are put out a fire the required aerosol sustained firing time, and (average value) shortens 35.1%
Left and right.
Specifically extinguishing mechanism is the present invention：
Calcium bicarbonate in composition is thermally decomposed at high temperature, discharges substantial amounts of carbon dioxide, and carbon dioxide is used for
Fire extinguishing；Calcium bicarbonate and calcium carbonate (calcium bicarbonate is by thermal decomposition product) by thermal decomposition process (calcium bicarbonate and calcium carbonate by
Thermal decomposition, a part carried out in aerosol fire-extinguishing device, a part after ejection again catching fire point carry out) in, it is necessary to inhale
Substantial amounts of heat is received, the flame temperature of ignition point can both be reduced, auxiliary fire extinguishing, advantageously reduces aerosol fire-extinguishing device spray again
Mouth temperature, is effectively ensured the safety that extinguishing device operates with people, brings and uses upper facility and safety.Foregoing carbonic acid
Hydrogen calcium and calcium carbonate are by thermal decomposition process, and the reduction of ignition temperature caused by heat absorption, it is burned that this will further result in comburant
The heat for being used for gasifying combustibles molecule and incendivity molecular cleavage into the free radical that will gasify in journey is reduced so that ignition point
The speed of (continuation) combustion reaction is necessarily suppressed.
Also, original cupric oxide in the calcium oxide and component generated after being decomposed due to calcium bicarbonate, can be with comburant
In carbon chemically react, generate carbon dioxide.That is, the combustible component (carbon dust) in comburant is changed into non-combustible
Inert gas (carbon dioxide) is burnt, is advantageous to the burning velocity of retarded combustion thing, reduces the oxygen content of combustion space, promote fire extinguishing
The raising of speed and efficiency.In addition, comburant (that is, process for maintaining combustion reaction persistently to carry out during catching fire
In), it will it is constant to be cracked to form substantial amounts of, indispensable H, O, OH isoreactivity base of combustion continuation progress institute
Group.And decomposed under calcium bicarbonate high temperature, original cupric oxide in the calcium oxide and component of generation, will respectively with it is above-mentioned these
Active group (that is, H, O, OH isoreactivity group) chemically reacts, so as to which part consumes these active groups, suppression
The reaction between these active groups is made, and then interrupts pyric chain, suppress continuing for flame combustion.
Oxidant and reducing agent in composition is in aerosol fire-extinguishing device, the electric starter through aerosol fire-extinguishing device
After igniting, violent redox reaction will occur, and discharge substantial amounts of heat, calcium bichromate, six calcium borides in composition,
Xylose and carbon dust then begin to imperfect combustion, produce substantial amounts of flue gas, and aerosol is formed after being mixed with air；In composition
Nanometer carboxymethylcellulose component, because its is flammable, ignition point is low, and specific surface area is big, is mainly used as combustionregulator.That is,
It is fast in container to promote aerosol fire-extinguishing device preliminary work for igniting/accelerating the burning velocity of combustible component in composition
Speed forms substantial amounts of aerosol.In hot-gas sol fire extinguishing agent composition, generated solid inorganic oxides are decomposed at high temperature
Particulate, the body surface that catches fire is covered in, further functions as the effect for the body surface starvation that catches fire, promote flame to be stopped up because of anoxic
Cease the quickening of extinguishing process.
It can be appreciated that the hot aerosol of above-mentioned technical proposal goes out from the analysis of above-mentioned table 1 and embodiment 1- embodiments 4
Fiery agent, it is fitted into aerosol fire-extinguishing device and (the certain pressure of combustion generated gas, formation in device), nothing can be used directly
Need pressure reservoir.This effectively improves the convenience and security during the storage and use of extinguishing chemical, with prior art
Conventional similar-type products ratio, there are very prominent comparative advantages.
In the above-mentioned extinguishing mechanism explanatory note on hot-gas sol fire extinguishing agent, involved main chemical reactions equation is such as
Under：
Ca(HCO3)2→CaCO3+CO2↑+H2O
CaCO3→CaO+CO2↑
CaO+C→Ca+CO2↑
Ca+·OH→Ca(OH)2
Ca+·O→CaO
Ca(OH)2+·H→H2O+Ca
Ca(OH)2+·OH→H2O+CaO
CaO+·H→Ca(OH)2
CuO+C→Cu+CO2↑
Cu+·OH→Cu(OH)2
Cu+·O→CuO
Cu(OH)2+·H→H2O+Cu
Cu(OH)2+·OH→H2O+CuO
CuO+·H→Cu(OH)2。
In summary, it is not difficult to find out, it is clearly demarcated with ten between each component of the hot-gas sol fire extinguishing agent of above-mentioned technical proposal
The function of aobvious " division of labor is with cooperate " and effect, have between each component and significantly act synergistically, cooperate, mutually promote,
So that hot-gas sol fire extinguishing agent has good extinguishing ability and fire-fighting efficiency on the whole.Illustrate the hot aerosol fire extinguishing of the present invention
The fire-fighting efficiency of agent product, hence it is evident that commercially available K-type extinguishing chemical and commercially available S types extinguishing chemical product higher than same type.
Certainly, described above is only presently preferred embodiments of the present invention, and the present invention is not limited to enumerate above-described embodiment, should
When explanation, any those skilled in the art are all equivalent substitutes for being made, bright under the teaching of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be protected by the present invention.
Claims (7)
1. a kind of hot-gas sol fire extinguishing agent, is characterised by, it includes according to parts by weight percentage：
2. hot-gas sol fire extinguishing agent according to claim 1, is characterised by, it includes according to parts by weight percentage：
3. hot-gas sol fire extinguishing agent according to claim 1, it is characterised in that above-mentioned epoxy resin uses benzene diformazan before using
Dioctyl phthalate makees solvent or diluent dilution, wherein, the mass ratio of epoxy resin and dioctyl phthalate solvent or diluent is 1-3:1.
4. a kind of method for preparing hot-gas sol fire extinguishing agent as claimed in claim 1, it comprises the following steps：
A, above-mentioned raw materials component is weighed respectively in corresponding ratio, and taken material component is used into grinding machine grinding into powder respectively；So
Afterwards, 500 mesh sieves are crossed, collect the powder of sieving, it is standby；
The powder of collected sieving is separately added into the charging tray of rotary pelleting machine, rotation is added to by the 1/3 of epoxy resin total amount B,
Turn the fluid reservoir of comminutor；Then, start rotary pelleting machine, after material is sufficiently mixed uniformly, open the spray of rotary pelleting machine
Stock pump, it is granulated to obtain material；
C, above-mentioned material is dried in explosion-proof baking oven, explosion-proof baking oven is according to 15 DEG C/h speed from room temperature to 40
DEG C, then the freeze-day with constant temperature at 40 DEG C, until material water ratio is less than or equal to 0.8%, obtains dry material；
D, gained dry material is entered into mixer, then the epoxy resin after remaining dilution is added to the uniform mixing of mixer,
Obtain semi-finished product；
E, obtained semi-finished product are loaded in cartridge case, is placed on press bench, is compacted under 5MPa pressure, obtained above-mentioned
Aerosol type extinguishing chemical.
5. preparation method according to claim 4, it is characterised in that above-mentioned steps A specifically also includes：Collect sieving pot
In tail in material incorporation next batch solid material, and fill back grinding machine grinding.
6. preparation method according to claim 4, it is characterised in that above-mentioned steps B specifically also includes：Rotary pelleting machine
Whiff pressure be 0.5Mp, whitewashing revolution speed is 5~25rmin-1, feeding machine rotating speed is 5~25rmin-1, it is close to dilute zero
It is 32 ° to spend for 0.64g/ml, angle of repose；The size controlling index of granulation is that final 28-32 purposes must expect that yield is more than 90%.
7. preparation method according to claim 4, it is characterised in that the cartridge case internal diameter in above-mentioned steps E is 40mm, high
100mm, charge 50-100g.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116328246A (en) * | 2023-03-16 | 2023-06-27 | 湖北及安盾消防科技有限公司 | Combined type hot aerosol fire extinguishing agent and preparation method thereof |
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| CN104998367A (en) * | 2014-04-17 | 2015-10-28 | 北京众慧诚科技有限公司 | Burning type fire extinguishing composition |
| CN104072667A (en) * | 2014-06-16 | 2014-10-01 | 山东科技大学 | Synthesis method of forest fire extinguishing agent based on multi-component super absorbent nanometer material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116328246A (en) * | 2023-03-16 | 2023-06-27 | 湖北及安盾消防科技有限公司 | Combined type hot aerosol fire extinguishing agent and preparation method thereof |
| CN116328246B (en) * | 2023-03-16 | 2024-03-12 | 湖北及安盾消防科技有限公司 | Combined type hot aerosol fire extinguishing agent and preparation method thereof |
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| CN107694001B (en) | 2019-07-02 |
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