CN107537126A - A kind of novel hot aerosol fire-extinguishing composite and preparation method thereof - Google Patents
A kind of novel hot aerosol fire-extinguishing composite and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of novel hot aerosol fire-extinguishing composite and preparation method thereof, it includes according to parts by weight percentage：13.4%~25.2% acerdol, 17.6%~28.1% artificial schellite, 6.2%~12.1% guanidine nitrate, 0.6%~4.3% carbon dust, 1.5%~4.6% nanometer carboxymethyl cellulose, 12.9%~26.4% zinc carbonate, 10.5%~28.6% basic copper carbonate, 0.4%~3.8% Sodium Citrate, usp, Dihydrate Powder and 1.1%~5.3% 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 novel hot aerosol 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 novel hot aerosol fire-extinguishing composite
And preparation method thereof, 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 novel hot aerosol fire-extinguishing composite, it includes according to parts by weight percentage：
Described novel hot aerosol fire-extinguishing composite, it includes according to parts by weight percentage：
Described novel hot aerosol fire-extinguishing composite, wherein, with distilled water to make solvent or diluent dilute using preceding for above-mentioned polyvinyl alcohol
Release, 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 novel hot aerosol fire-extinguishing composite provided by the invention and preparation method thereof, have dosage it is few, fire extinguishing
The advantages that speed is fast, fire-fighting efficiency is high, particularly suitable for the fire extinguishing of oils burning things which may cause a fire disaster, it contains oxidant, fuel agent, burning regulation
Agent, additive, modifying agent and adhesive；The oxidant is the mixture of acerdol and artificial schellite, and fuel agent is guanidine nitrate
And carbon dust, combustionregulator are nanometer carboxymethyl cellulose, additive is zinc carbonate and basic copper carbonate, and modifying agent is two water lemons
Lemon acid sodium, adhesive are polyvinyl alcohol.Zinc carbonate and basic copper carbonate in composition are thermally decomposed at high temperature, are discharged big
The carbon dioxide of amount, carbon dioxide are used to put out a fire；In zinc carbonate and basic copper carbonate by thermal decomposition process (zinc carbonate and alkali formula carbon
Sour copper is thermally decomposed, and a part is carried out in aerosol fire-extinguishing device, and catching fire point is carried out a part again after ejection) in,
Need to absorb substantial amounts of heat, the flame temperature of ignition point can both be reduced, auxiliary fire extinguishing, advantageously reduce aerosol fire-extinguishing again
Device nozzle temperature, the safety that extinguishing device operates with people is effectively ensured, brings and use upper facility and safety.As previously described
Zinc carbonate and basic copper carbonate by thermal decomposition process, the reduction of ignition temperature caused by heat absorption, this will further result in burning
The heat for being used for gasifying combustibles molecule and incendivity molecular cleavage into the free radical that will gasify in thing combustion process is reduced, and is made
The speed for obtaining ignition point (continuation) combustion reaction is necessarily suppressed.
Also, the zinc oxide and cupric oxide generated after being decomposed due to zinc carbonate and basic copper carbonate, can with comburant
Carbon chemically reacts, and generates carbon dioxide.That is, the combustible component (carbon dust) in comburant is changed into incombustible lazy
Property gas (carbon dioxide), be advantageous to retarded combustion thing burning velocity, reduce combustion space oxygen content, promote blow-off velocity
With the raising of efficiency.In addition, comburant (that is, during maintenance combustion reaction is persistently carried out), is incited somebody to action during catching fire
Substantial amounts of, combustion continuation can be constantly cracked to form and carry out indispensable H, O, OH isoreactivity group of institute.And carbon
Decomposed under sour zinc and basic copper carbonate high temperature, the zinc oxide and cupric oxide of generation, will respectively with these above-mentioned active groups
(that is, H, O, OH isoreactivity group) chemically reacts, so as to which part consumes these active groups, suppresses these work
Property group between reaction, and then interrupt pyric chain, suppress flame combustion and continue.
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, acerdol, artificial schellite, nitre in composition
Sour guanidine 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 fire extinguishant compositions, generated solid inorganic oxides particulate, covering are decomposed at high temperature
In the body surface that catches fire, further function as the effect for the body surface starvation that catches fire, promote flame because anoxia asphyxia extinguish into
The quickening of journey.
Embodiment
The invention provides a kind of novel hot aerosol fire-extinguishing composite and preparation method thereof, for make the purpose of the present invention,
Technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of novel hot aerosol fire-extinguishing composite, and it includes according to parts by weight percentage：13.4%
~25.2% acerdol, 17.6%~28.1% artificial schellite, 6.2%~12.1% guanidine nitrate, 0.6%~4.3%
Carbon dust, 1.5%~4.6% nanometer carboxymethyl cellulose, 12.9%~26.4% zinc carbonate, 10.5%~28.6%
Basic copper carbonate, 0.4%~3.8% Sodium Citrate, usp, Dihydrate Powder and 1.1%~5.3% polyvinyl alcohol.
Certainly it is further preferred that it includes according to parts by weight percentage：15.3%~23.5% acerdol,
18.8%~26.5% artificial schellite, 7.3%~11.4% guanidine nitrate, 1.5%~4.1% carbon dust, 1.9%~3.8%
Nanometer carboxymethyl cellulose, 14.8%~25.2% zinc carbonate, 12.3%~24.1% basic copper carbonate, 0.9%~
3.5% Sodium Citrate, usp, Dihydrate Powder and 1.3%~5.1% 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, it, which has, preferably uses upper cost performance, has both been easy to the bonding of extinguishing chemical, compressing operation,
There is good compressing quality again.
Present invention also offers a kind of method for preparing the 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 °.Cartridge case internal diameter in above-mentioned steps E is 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.Novel hot is molten
The fire suppression applications experiment of glue fire-extinguishing composite, using GA 499.1-2010《GAFES》Part 1：Hot gas is molten
Method as defined in glue extinguishing device is carried out.The usage amount of novel hot aerosol fire-extinguishing composite is 50g.
Embodiment 1
The composition of raw materials of novel hot aerosol fire-extinguishing composite is：By mass fraction, acerdol 23%, artificial schellite
19%th, guanidine nitrate 11%, carbon dust 2%, nanometer carboxymethyl cellulose 2%, zinc carbonate 19%, basic copper carbonate 18%, two water lemons
Lemon acid sodium 3%, polyvinyl alcohol 3% (press 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；Experimental result is shown in Table 1.
Embodiment 2
The composition of raw materials of novel hot aerosol fire-extinguishing composite is：By mass fraction, acerdol 21%, artificial schellite
21%th, guanidine nitrate 10%, carbon dust 3%, nanometer carboxymethyl cellulose 3%, zinc carbonate 23%, basic copper carbonate 15%, two water lemons
Lemon acid sodium 2%, polyvinyl alcohol 2% (press 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 novel hot aerosol fire-extinguishing composite is：By mass fraction, acerdol 19%, artificial schellite
23%th, guanidine nitrate 9%, carbon dust 4%, nanometer carboxymethyl cellulose 2%, zinc carbonate 20%, basic copper carbonate 17%, two water lemons
Sour sodium 2%, polyvinyl alcohol 4% (press 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 novel hot aerosol fire-extinguishing composite is：By mass fraction, acerdol 16%, artificial schellite
25%th, guanidine nitrate 8%, carbon dust 4%, nanometer carboxymethyl cellulose 3%, zinc carbonate 18%, basic copper carbonate 20%, two water lemons
Sour sodium 3%, polyvinyl alcohol 3% (press 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
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 12.9s, 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 32.5%
Left and right.
Specifically extinguishing mechanism is the present invention：
Zinc carbonate and basic copper 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；Zinc carbonate and basic copper carbonate by thermal decomposition process (zinc carbonate and basic copper 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 zinc carbonate and alkali
Formula copper carbonate is by thermal decomposition process, and 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, the zinc oxide and cupric oxide generated after being decomposed due to zinc carbonate and basic copper carbonate, can with comburant
Carbon chemically reacts, and generates carbon dioxide.That is, the combustible component (carbon dust) in comburant is changed into incombustible lazy
Property gas (carbon dioxide), be advantageous to retarded combustion thing burning velocity, reduce combustion space oxygen content, promote blow-off velocity
With the raising of efficiency.In addition, comburant (that is, during maintenance combustion reaction is persistently carried out), is incited somebody to action during catching fire
Substantial amounts of, combustion continuation can be constantly cracked to form and carry out indispensable H, O, OH isoreactivity group of institute.And carbon
Decomposed under sour zinc and basic copper carbonate high temperature, the zinc oxide and cupric oxide of generation, will respectively with these above-mentioned active groups
(that is, H, O, OH isoreactivity group) chemically reacts, so as to which part consumes these active groups, suppresses these work
Property group between reaction, and then interrupt pyric chain, suppress flame combustion and continue.
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, acerdol, artificial schellite, nitre in composition
Sour guanidine 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 fire extinguishant compositions, generated solid inorganic oxides particulate, covering are decomposed at high temperature
In the body surface that catches fire, further function as the effect for the body surface starvation that catches fire, promote flame because anoxia asphyxia extinguish into
The quickening of journey.
It can be appreciated that the novel hot aerosol fire-extinguishing composite of above-mentioned technical proposal, loads gas from the analysis of above-mentioned table 1
(the certain pressure of combustion generated gas, formation in device) can be used directly in aerosol fire extinguisher, without pressure reservoir.
This effectively improves the convenience and security during the storage and use of extinguishing chemical, the conventional same type with prior art
Product 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：
ZnCO3→ZnO+CO2↑
Cu2(OH)2CO3→CuO+CO2↑+H2O
ZnO+C→Zn+CO2↑
Zn+·OH→Zn(OH)2
Zn+·O→ZnO
Zn(OH)2+·H→H2O+Zn
Zn(OH)2+·OH→H2O+ZnO
ZnO+·H→Zn(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, between each component of the novel hot aerosol fire-extinguishing composite of above-mentioned technical proposal, tool
There are function and the effect of fairly obvious " division of labor is with cooperating ", there is obvious synergy between each component, cooperate, phase
Mutually promote so that aerosol extinguishing agent has good extinguishing ability and fire-fighting efficiency on the whole.Illustrate the new heat of the present invention
The fire-fighting efficiency of aerosol fire-extinguishing composite product, hence it is evident that produced higher than the commercially available K-type extinguishing chemical of same type 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 novel hot aerosol fire-extinguishing composite, is characterised by, it includes according to parts by weight percentage：
2. novel hot aerosol fire-extinguishing composite according to claim 1, is characterised by, it is according to parts by weight percentage bag
Include：
3. novel hot aerosol fire-extinguishing composite according to claim 1, it is characterised in that before above-mentioned polyvinyl alcohol use
Make solvent or diluent dilution with distilled water, 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；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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| CN115594477A (en) * | 2022-10-13 | 2023-01-13 | 广东能源集团科学技术研究院有限公司（Cn） | Fireproof gypsum board and manufacturing method thereof |
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| CN101085400A (en) * | 2007-07-12 | 2007-12-12 | 陕西坚瑞化工有限责任公司 | Aerosol fire fighting composition for preventing and reducing secondary damage to ,electrical installation |
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| CN102614616A (en) * | 2012-02-29 | 2012-08-01 | 深圳市安锐消防有限公司 | Condensed fire extinguishing aerosol extinguishant and production process thereof |
| CN104208840A (en) * | 2014-07-07 | 2014-12-17 | 天津金海河科技有限公司 | Magnesium-based S type aerosol fire extinguishing agent |
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| CN115594477A (en) * | 2022-10-13 | 2023-01-13 | 广东能源集团科学技术研究院有限公司（Cn） | Fireproof gypsum board and manufacturing method thereof |
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