CN107537128A - A kind of hot aerosol type fire-extinguishing composite and preparation method thereof - Google Patents
A kind of hot aerosol type fire-extinguishing composite and preparation method thereof Download PDFInfo
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- CN107537128A CN107537128A CN201710905111.0A CN201710905111A CN107537128A CN 107537128 A CN107537128 A CN 107537128A CN 201710905111 A CN201710905111 A CN 201710905111A CN 107537128 A CN107537128 A CN 107537128A
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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
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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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Abstract
The invention discloses a kind of hot aerosol type fire-extinguishing composite and preparation method thereof, it includes according to parts by weight percentage：25.7%~37.6% calcium metaphosphate, 10.4%~22.1% calcium pyrophosphate, 5.2%~18.1% lactose, 0.9%~3.5% carbon dust, 1.3%~4.9% nanometer carboxymethyl cellulose, 12.5%~28.6% basic magnesium carbonate, 10.6%~22.8% calcium carbonate, 0.3%~3.7% potassium oxalate and 1.2%~5.6% polyvinyl alcohol；And preparation method thereof.There is obvious synergy between the hot aerosol type fire-extinguishing composite 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 aerosol type fire-extinguishing composite 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 aerosol type fire-extinguishing composite and
Its 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 aerosol type fire-extinguishing composite, it includes according to parts by weight percentage：
Described hot aerosol type fire-extinguishing composite, it includes according to parts by weight percentage：
Described hot aerosol type fire-extinguishing composite, wherein, above-mentioned polyvinyl alcohol makees solvent or diluent dilution using preceding with distilled water,
Wherein, the mass ratio of polyvinyl alcohol and distilled water is 1:9-13.
A kind of method for preparing the hot aerosol type fire-extinguishing composite, 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 polyvinyl alcohol 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, then remaining polyvinyl alcohol is entered and is diluted with distilled water, after dilution
Polyethylene adds the uniform mixing of mixer, 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 hot aerosol type fire-extinguishing composite.
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 °, and the size controlling index of granulation must expect that yield is more than 90% for final 28-32 purposes.
Described preparation method, wherein, the cartridge case internal diameter in above-mentioned steps E is 40mm, high 100mm, charge 50-
100g。
A kind of hot aerosol type fire-extinguishing composite provided by the invention and preparation method thereof, have dosage it is few, fire extinguishing speed
The advantages that degree is fast, fire-fighting efficiency is high, particularly suitable for the fire extinguishing of oils burning things which may cause a fire disaster, in hot aerosol type fire-extinguishing composite, contain oxidation
Agent, fuel agent, combustionregulator, additive, modifying agent and adhesive；Wherein, oxidant is calcium metaphosphate and calcium pyrophosphate
Mixture, fuel agent are lactose and carbon dust, and combustionregulator is nanometer carboxymethyl cellulose, and additive is basic magnesium carbonate and carbon
Sour calcium, modifying agent are potassium oxalate, and adhesive is polyvinyl alcohol.
Basic magnesium carbonate and calcium carbonate in composition are thermally decomposed at high temperature, discharge substantial amounts of carbon dioxide, and two
Carbonoxide is used to put out a fire；Basic magnesium carbonate and calcium carbonate by thermal decomposition process (basic magnesium carbonate and calcium carbonate are thermally decomposed, one
Part is carried out in aerosol fire-extinguishing device, and catching fire point is carried out a part again after ejection) in, it is necessary to absorb substantial amounts of
Heat, the flame temperature of ignition point can both be reduced, and auxiliary fire extinguishing, advantageously reduce aerosol fire-extinguishing device nozzle temperature again,
The safety that extinguishing device operates with people is effectively ensured, brings and uses upper facility and safety.Foregoing basic magnesium carbonate
With calcium carbonate by thermal decomposition process, the reduction of ignition temperature caused by heat absorption, this will further result in comburant combustion process
Heat for gasifying combustibles molecule and incendivity molecular cleavage into the free radical that will gasify is reduced so that ignition point (after
It is continuous) speed of combustion reaction necessarily suppressed.
Also, due to the calcium oxide generated after Decomposition of Calcium Carbonate, can be chemically reacted with the carbon in comburant, it is raw
Into carbon dioxide.That is, the combustible component (carbon dust) in comburant is changed into incombustible inert gas (carbon dioxide), favorably
Burning velocity, the oxygen content of reduction combustion space in retarded combustion thing, promote the raising of blow-off velocity and efficiency.In addition, combustion
Burning thing is during catching fire (that is, during maintenance combustion reaction is persistently carried out), it will constant to be cracked to form greatly
Amount, indispensable H, O, OH isoreactivity group of combustion continuation progress institute.
And decomposed under basic magnesium carbonate and calcium carbonate high temperature, the magnesia and calcium oxide 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 metaphosphate, calcium pyrophosphate in composition,
Carbon dust and lactose then begin to imperfect combustion, produce substantial amounts of flue gas, and aerosol is formed after being mixed with air；
Nanometer carboxymethylcellulose component in composition, because its is flammable, ignition point is low, and specific surface area is big, mainly
It is used as combustionregulator.That is, for the burning velocity for igniting/accelerating combustible component in composition, to promote aerosol fire-extinguishing to fill
Preliminary work is put, substantial amounts of aerosol is quickly formed in container.In fire-extinguishing composite, the inorganic oxygen generated is decomposed at high temperature
Compound solia particle, is covered in the body surface that catches fire, and further functions as the effect for the body surface starvation that catches fire, promotes flame
Because anoxia asphyxia extinguishes the quickening of process.
Embodiment
The invention provides a kind of hot aerosol type fire-extinguishing composite and preparation method thereof, to make the purpose of the present invention, skill
Art scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that tool described herein
Body embodiment only to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of hot aerosol type fire-extinguishing composite, it includes according to parts by weight percentage：
25.7%~37.6% calcium metaphosphate, 10.4%~22.1% calcium pyrophosphate, 5.2%~18.1% lactose, 0.9%~
3.5% carbon dust, 1.3%~4.9% nanometer carboxymethyl cellulose, 12.5%~28.6% basic magnesium carbonate, 10.6%
~22.8% calcium carbonate, 0.3%~3.7% potassium oxalate and 1.2%~5.6% polyvinyl alcohol.
Certainly it is further preferred that it includes according to parts by weight percentage：26.3%~31.4% calcium metaphosphate,
12.6%~21.1% calcium pyrophosphate, 8.5%~14.3% lactose, 1.2%~2.6% carbon dust, 1.8%~4.2%
Nanometer carboxymethyl cellulose, 15.7%~27.2% basic magnesium carbonate, 12.1%~21.6% calcium carbonate, 0.8%~
3.2% potassium oxalate and 1.5%~4.8% polyvinyl alcohol.
Further, above-mentioned polyvinyl alcohol makees solvent or diluent dilution using preceding with distilled water, wherein, polyvinyl alcohol and distilled water
Mass ratio be 1:9-13, have and preferably use upper cost performance, be both easy to the bonding of extinguishing chemical, compressing operation, again
With good compressing quality.
Present invention also offers a kind of method for preparing above-mentioned hot aerosol type fire-extinguishing composite, 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 polyvinyl alcohol 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, enters mixer by gained dry material, then enters remaining polyvinyl alcohol and is diluted with distilled water, dilute
The uniform mixing that rear polyethylene adds mixer is released, 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 hot aerosol type fire-extinguishing composite.
Further, above-mentioned steps one specifically also include：Collect in sieving pot and tail over material incorporation next batch
In solid material, and fill back grinding machine grinding.And above-mentioned steps two specifically also include：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 °, and the size controlling index of granulation must expect that yield is more than 90% for final 28-32 purposes.In above-mentioned steps E
Cartridge case internal diameter be 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 fire-extinguishing composite product, using GA 499.1-2010《GAFES》Part 1：Heat
Method as defined in aerosol fire-extinguishing device is carried out, and the usage amount of fire-extinguishing composite is 50g.
Embodiment 1
The composition of raw materials of compound type aerosol fire-extinguishing composite is：By mass fraction, calcium metaphosphate 26.5%, calcium pyrophosphate
17%th, lactose 9%, carbon dust 2.5%, nanometer carboxymethyl cellulose 4%, basic magnesium carbonate 23%, calcium carbonate 14%, potassium oxalate
2%th, polyvinyl alcohol 2% (presses 1:9 mass ratio, add distilled water 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 aerosol type fire-extinguishing composite is：By mass fraction, calcium metaphosphate 27%, calcium pyrophosphate 15%,
Lactose 11%, carbon dust 2.5%, nanometer carboxymethyl cellulose 3%, basic magnesium carbonate 21%, calcium carbonate 16%, potassium oxalate 2.5%,
Polyvinyl alcohol 2% (presses 1:11 mass ratio, add distilled water 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 aerosol type fire-extinguishing composite is：By mass fraction, calcium metaphosphate 30%, calcium pyrophosphate 14%,
It is lactose 10%, carbon dust 2%, nanometer carboxymethyl cellulose 2%, basic magnesium carbonate 20%, calcium carbonate 16%, potassium oxalate 3.5%, poly-
Vinyl alcohol 2.5% (presses 1:11 mass ratio, add distilled water 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 aerosol type fire-extinguishing composite is：By mass fraction, calcium metaphosphate 25%, calcium pyrophosphate 13%,
Lactose 14%, carbon dust 2%, nanometer carboxymethyl cellulose 4%, basic magnesium carbonate 19%, calcium carbonate 18%, potassium oxalate 3%, poly- second
Enol 2% (presses 1:13 mass ratio, add distilled water 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.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
As can be seen that the fire extinguishing success rate of embodiment 1~4 is 100% from upper table 1, the commercially available K-type higher than same type is gone out
Fiery agent and commercially available S types extinguishing chemical product (average out to 62.5%).
Aerosol sustained firing time average required for the fire extinguishing of embodiment 1~4 is about 12.5s, the commercially available K of same type
Aerosol sustained firing time average required for type extinguishing chemical and the fire extinguishing of commercially available S types extinguishing chemical product is about 19.1s.Table
Bright, the aerosol sustained firing time required for the fire extinguishing of embodiment 1~4, (average value) shortens 34.6% or so.
Specifically extinguishing mechanism is the present invention：
Basic magnesium carbonate and calcium carbonate in composition are thermally decomposed at high temperature, discharge substantial amounts of carbon dioxide, and two
Carbonoxide is used to put out a fire；Basic magnesium carbonate and calcium carbonate by thermal decomposition process (basic magnesium carbonate and calcium carbonate are thermally decomposed, one
Part is carried out in aerosol fire-extinguishing device, and catching fire point is carried out a part again after ejection) in, it is necessary to absorb substantial amounts of
Heat, the flame temperature of ignition point can both be reduced, and auxiliary fire extinguishing, advantageously reduce aerosol fire-extinguishing device nozzle temperature again,
The safety that extinguishing device operates with people is effectively ensured, brings and uses upper facility and safety.Foregoing basic magnesium carbonate
With calcium carbonate by thermal decomposition process, the reduction of ignition temperature caused by heat absorption, this will further result in comburant combustion process
Heat for gasifying combustibles molecule and incendivity molecular cleavage into the free radical that will gasify is reduced so that ignition point (after
It is continuous) speed of combustion reaction necessarily suppressed.
Also, due to the calcium oxide generated after Decomposition of Calcium Carbonate, can be chemically reacted with the carbon in comburant, it is raw
Into carbon dioxide.That is, the combustible component (carbon dust) in comburant is changed into incombustible inert gas (carbon dioxide), favorably
Burning velocity, the oxygen content of reduction combustion space in retarded combustion thing, promote the raising of blow-off velocity and efficiency.In addition, combustion
Burning thing is during catching fire (that is, during maintenance combustion reaction is persistently carried out), it will constant to be cracked to form greatly
Amount, indispensable H, O, OH isoreactivity group of combustion continuation progress institute.
And decomposed under basic magnesium carbonate and calcium carbonate high temperature, the magnesia and calcium oxide 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 metaphosphate, calcium pyrophosphate in composition,
Carbon dust and lactose then begin to imperfect combustion, produce substantial amounts of flue gas, and aerosol is formed after being mixed with air；
Nanometer carboxymethylcellulose component in composition, because its is flammable, ignition point is low, and specific surface area is big, mainly
It is used as combustionregulator.That is, for the burning velocity for igniting/accelerating combustible component in composition, to promote aerosol fire-extinguishing to fill
Preliminary work is put, substantial amounts of aerosol is quickly formed in container.In fire-extinguishing composite, the inorganic oxygen generated is decomposed at high temperature
Compound solia particle, is covered in the body surface that catches fire, and further functions as the effect for the body surface starvation that catches fire, promotes flame
Because anoxia asphyxia extinguishes the quickening of process.
It can be appreciated that the hot aerosol type fire-extinguishing composite of above-mentioned technical proposal, dress from above-described embodiment 1-4 analysis
Enter in aerosol fire-extinguishing device and (the certain pressure of combustion generated gas, formation in device) can be used directly, without pressure
Storage.This effectively improves the convenience and security during the storage and use of fire-extinguishing composite, with prior art
Conventional similar-type products ratio, there are very prominent comparative advantages.
In the above-mentioned type fire-extinguishing composite extinguishing mechanism explanatory note on hot aerosol, involved main chemical reactions side
Formula is as follows：
Mg2(OH)2CO3→MgO+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
MgO+·H→Mg(OH)2
Mg(OH)2+·OH→H2O+MgO。
In summary, it is not difficult to find out between each component of the hot aerosol type fire-extinguishing composite of above-mentioned technical proposal, have
The function of fairly obvious " division of labor is with cooperate " and effect, have obvious synergy between each component, mutual cooperation, mutual
Promote so that aerosol fire-extinguishing composite has good extinguishing ability and fire-fighting efficiency on the whole.
Illustrate the fire-fighting efficiency of the hot aerosol type fire-extinguishing composite product of the present invention, hence it is evident that higher than the commercially available K of same type
Type extinguishing chemical and commercially available S types extinguishing chemical product.
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 aerosol type fire-extinguishing composite, is characterised by, it includes according to parts by weight percentage：
2. hot aerosol type fire-extinguishing composite according to claim 1, is characterised by, it is according to parts by weight percentage bag
Include：
The summation of the percentage by weight of above-mentioned each group point is 100%.
3. hot aerosol type fire-extinguishing composite according to claim 1, it is characterised in that above-mentioned polyvinyl alcohol is used before using
Distilled water makees solvent or diluent dilution, wherein, the mass ratio of polyvinyl alcohol and distilled water is 1:9-13.
4. a kind of method for preparing hot aerosol type fire-extinguishing composite 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 polyvinyl alcohol 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 polyvinyl alcohol 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
Hot aerosol type fire-extinguishing composite.
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, and the size controlling index of granulation must expect that yield is more than 90% for final 28-32 purposes.
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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| PCT/CN2018/082988 WO2019062076A1 (en) | 2017-09-29 | 2018-04-13 | Hot aerosol fire extinguishing composition and preparation method therefor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062076A1 (en) * | 2017-09-29 | 2019-04-04 | 山东科技大学 | Hot aerosol fire extinguishing composition and preparation method therefor |
| CN114367075A (en) * | 2021-12-13 | 2022-04-19 | 湖北及安盾消防科技有限公司 | Hot aerosol fire extinguishing agent and preparation method and application thereof |
| CN116474308A (en) * | 2023-04-25 | 2023-07-25 | 西安庆华民用爆破器材股份有限公司 | Composite low-temperature aerosol fire extinguishing agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6443882B2 (en) * | 2015-03-13 | 2018-12-26 | 株式会社ダイセル | Aerosol fire extinguisher composition. |
| CN107537128B (en) * | 2017-09-29 | 2018-10-02 | 山东科技大学 | A kind of hot aerosol type fire-extinguishing composite and preparation method thereof |
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2017
- 2017-09-29 CN CN201710905111.0A patent/CN107537128B/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019062076A1 (en) * | 2017-09-29 | 2019-04-04 | 山东科技大学 | Hot aerosol fire extinguishing composition and preparation method therefor |
| CN114367075A (en) * | 2021-12-13 | 2022-04-19 | 湖北及安盾消防科技有限公司 | Hot aerosol fire extinguishing agent and preparation method and application thereof |
| CN116474308A (en) * | 2023-04-25 | 2023-07-25 | 西安庆华民用爆破器材股份有限公司 | Composite low-temperature aerosol fire extinguishing agent and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107537128B (en) | 2018-10-02 |
| WO2019062076A1 (en) | 2019-04-04 |
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