CN107670217B - A kind of aerosol type extinguishing chemical and preparation method thereof - Google Patents
A kind of aerosol type extinguishing chemical and preparation method thereof Download PDFInfo
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- CN107670217B CN107670217B CN201710905141.1A CN201710905141A CN107670217B CN 107670217 B CN107670217 B CN 107670217B CN 201710905141 A CN201710905141 A CN 201710905141A CN 107670217 B CN107670217 B CN 107670217B
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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
Abstract
The invention discloses a kind of aerosol type extinguishing chemicals and preparation method thereof, include: 8.32%~20.32% acerdol, 16.72%~28.72% calcium sulphate dihydrate, 7.76%~13.66% modified starch, 9.2%~15.3% carbon dust, 0.50%~3.50% nano-cellulose, 1.50%~4.50% hexa, 9.19%~29.19% ammonium dihydrogen phosphate, 0.81%~20.81% calcium carbonate, 0.70%~3.70% magnesium carbonate and 0.80%~4.80% epoxy resin according to weight percent；And preparation method thereof.There is apparent synergistic effect between aerosol extinguishing agent each component of the invention, so that aerosol extinguishing agent has good extinguishing ability and fire-fighting efficiency on the whole, have many advantages, such as that dosage is few, blow-off velocity is fast, fire-fighting efficiency is high, the fire extinguishing particularly suitable for oils fire source.
Description
Technical field
The present invention relates to fire extinguishing fields more particularly to a kind of aerosol type extinguishing chemical and preparation method thereof.
Background technique
Currently, it is common to use extinguishing chemical be broadly divided into following several classes: water base class extinguishing chemical, gas class 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 indicator
Respectively there is superiority and inferiority, in which: halon fire agent has the characteristics that good extinguishing effect, fire-fighting efficiency are high.
But there is the chemical component to the biggish destruction of ozone layer in halon fire agent, since 1987, respectively
State is phased out the production and use of halon fire agent under " concerning the Montreal Protocol book for destroying ozone substance " limitation,
The Chinese government also stops 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 is mainly that the cooling for passing through water mists, asphyxia and isolation heat radiation effect reach fire extinguishing purpose；Gas class is gone out
The oxygen content that fiery agent mainly passes through injection inert gas reduction flame range achievees the purpose that the fire that suffocates；Powder class extinguishing chemical is main
Principle is to act on down ejecting powder by high pressure gas, consumes the free radical in flame, generation inert gas etc. and reaches fire extinguishing
Purpose.But the presence of hyperbaric environment is required in these extinguishing chemical use processes, cause equipment volume larger, storage uses
Have physical explosion risk, in document " safety analysis of gas extinguishing system ", analyze gas extinguishing system in the process
Risk.
Existing aerosol class extinguishing chemical can be divided mainly into S type and K-type, and this kind of extinguishing chemical mainly utilizes redox reaction
The effects of inert gas of release, free radical, in flame range, is 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
It spends higher；Some aerosol extinguishing agents generation aerosol efficiency are lower, and the time is long, is unfavorable for controlling initial fire disaster in time.
Therefore, the prior art needs further improvement and develops.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, a kind of aerosol type extinguishing chemical provided by the invention and preparation method thereof,
Under the premise of reducing cost, fire-fighting efficiency is improved.
In order to solve the above technical problems, technical solution of the present invention includes:
A kind of aerosol type extinguishing chemical, wherein include: according to weight percent
The aerosol type extinguishing chemical, wherein include: according to weight percent
The aerosol type extinguishing chemical, wherein above-mentioned modified starch is succinic acid-butanediol ester graft modified starch, knot
Structure formula is (C6H10O5)6nHO(CO(CH2)2COO(CH2)4O) nH, wherein n > 2.
The aerosol type extinguishing chemical, which is characterized in that above-mentioned epoxy resin is made using preceding with dioctyl phthalate
Solvent or diluent is diluted, wherein the mass ratio of epoxy resin and dioctyl phthalate solvent or diluent is 1-3:1.
A method of preparing the aerosol type extinguishing chemical comprising 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 meshes are crossed, the powder of sieving is collected, it is spare；
B, 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
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 rate from room temperature to
40 DEG C, then the freeze-day with constant temperature at 40 DEG C obtains dry material until material water ratio is less than or equal to 0.8%；
D, gained dry material is entered into blender, is then diluted remaining epoxy resin with dioctyl phthalate,
The uniform mixing of blender is added in epoxy resin after dilution, obtains semi-finished product；
E, obtained semi-finished product are packed into cylindrantherae, are placed on press bench, are compacted, obtain under 5MPa pressure
Above-mentioned aerosol type extinguishing chemical.
The preparation method, wherein above-mentioned steps A is specific further include: collect in sieving pot and tail over material incorporation
In next batch solid material, and fill back grinding machine grinding.
The preparation method, wherein above-mentioned steps B is specific further include: the whiff pressure of rotary pelleting machine is
0.5MPa, whitewashing revolution speed are 5~25rmin-1, feeding machine revolving 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 purpose must expect that yield is greater than 90%.
A kind of aerosol type extinguishing chemical provided by the invention and preparation method thereof, has that dosage is few, blow-off velocity is fast, goes out
The advantages that fire is high-efficient, particularly suitable for the fire extinguishing of oils fire source, calcium carbonate and magnesium carbonate in composition are heated at high temperature to be divided
Solution releases a large amount of carbon dioxide, and carbon dioxide is for putting out a fire；In calcium carbonate and magnesium carbonate by thermal decomposition process (calcium carbonate
It is thermally decomposed with magnesium carbonate, a part carries out in aerosol fire-extinguishing device, and catching fire point carries out a part again after ejection)
In, it needs to absorb a large amount of heat, can both reduce the flame temperature of ignition point, auxiliary fire extinguishing, and advantageously reduce aerosol
The safety that extinguishing device operates with people is effectively ensured in extinguishing device nozzle temperature, brings and uses upper convenience and safety.And
Calcium carbonate and magnesium carbonate are by thermal decomposition process, and the reduction of ignition temperature caused by absorbing heat, this will further result in comburant burning
It is reduced in the process for gasifying combustibles molecule and by the incendivity molecular cleavage to have gasified at the heat of free radical, so that kindling
The speed of point (continuation) combustion reaction is centainly inhibited.Also, it, can be with burning due to the calcium oxide generated after Decomposition of Calcium Carbonate
Carbon in object chemically reacts, and generates carbon dioxide.It can not that is, the combustible component (carbon dust) in comburant is converted to
It burns inert gas (carbon dioxide), is conducive to the burning velocity of retarded combustion object, reduces the oxygen content of combustion space, promote to go out
The raising with efficiency is spent at top speed.
In addition, comburant is during catching fire (that is, during maintaining combustion reaction persistently to carry out), it will continue
It is constantly cracked to form a large amount of, combustion continuation and carries out indispensable H, O, OH isoreactivity group of institute.And calcium carbonate and
Decomposed under magnesium carbonate high temperature, the calcium oxide and magnesia of generation, will respectively with these above-mentioned active groups (that is, H, O,
OH isoreactivity group) it chemically reacts, so that part consumes these active groups, inhibits between these active groups
Reaction, and then interrupt pyric chain, flame combustion inhibited to continue.
And in aerosol fire-extinguishing device, the electricity through aerosol fire-extinguishing device opens the oxidant and reducing agent in composition
After dynamic device igniting, violent redox reaction will occur, and release a large amount of heat, acerdol, two water in composition
Calcium sulfate, carbon dust and modified starch then begin to imperfect combustion, generate a large amount of flue gas, and it is molten that gas is formed after mixing with air
Glue；Nano-cellulose ingredient in composition, since its is flammable, ignition point is low, and large specific surface area, mainly make combustionregulator
With.That is, being held for the burning velocity of comhustible component in composition of igniting/accelerate with promoting aerosol fire-extinguishing device preliminary work
A large amount of aerosol is quickly formed in device.Aerosol fire-extinguishing device sprays six Asias in the composition that flue gas (in aerosol) is swept along
Tetramine, is covered on ignition point, and heat distillation absorbs a large amount of heat, can further decrease the temperature of ignition point, inhibits
The continuation of burning.Ammonium dihydrogen phosphate is thermally decomposed simultaneously, releases ammonia, the oxygen that can further dilute at ignition point position is dense
Degree inhibits the continuation of burning.The crystallization water is lost after calcium sulphate dihydrate is heated in the aerosol that extinguishing device sprays, can be consumed
Big calorimetric at fiery point is conducive to the continuation for inhibiting burning, decomposes solid inorganic oxides particle generated at high temperature, cover
It covers in kindling body surface, further functions as the effect of kindling body surface starvation, flame is promoted to extinguish because of anoxia asphyxia
The quickening of process.
Specific embodiment
The present invention provides a kind of aerosol type extinguishing chemicals and preparation method thereof, to make the purpose of the present invention, technical solution
And effect is clearer, clear, the present invention is described in more detail below.It should be appreciated that specific implementation described herein
Example is only used to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of aerosol type extinguishing chemicals, include: 8.32%~20.32% according to weight percent
Acerdol, 16.72%~28.72% calcium sulphate dihydrate, 7.76%~13.66% modified starch, 9.2%~15.3%
Carbon dust, 0.50%~3.50% nano-cellulose, 1.50%~4.50% hexa, 9.19%~
29.19% ammonium dihydrogen phosphate, 0.81%~20.81% calcium carbonate, 0.70%~3.70% magnesium carbonate and 0.80%~
4.80% epoxy resin.
Certainly it is furthermore preferred that its can also include: according to weight percent 13%~15% acerdol, 21.4%~
23.4% calcium sulphate dihydrate, 9.44%~11.64% modified starch, 10.2%~14.0% carbon dust, 1.5%~
2.5% nano-cellulose, 2.5%~3.5% hexa, 18.08%~20.3% ammonium dihydrogen phosphate,
9.7%~11.92% calcium carbonate, 2%~2.5% magnesium carbonate and 2.3%~3.5% epoxy resin.
Further, above-mentioned modified starch is succinic acid-butanediol ester graft modified starch, and structural formula is (C6H10O5)
6nHO(CO(CH2)2COO(CH2)4O) nH, wherein n > 2.And above-mentioned epoxy resin using it is preceding made with dioctyl phthalate it is dilute
Material is diluted, wherein the mass ratio of epoxy resin and dioctyl phthalate solvent or diluent is 1-3:1, is had preferably using upper
Cost performance, not only convenient for extinguishing chemical bonding, compression moulding operation, but also have good compression moulding quality.
The present invention also provides a kind of methods for preparing above-mentioned aerosol type extinguishing chemical comprising following steps:
Step 1 weighs above-mentioned raw materials component in corresponding ratio respectively, and taken material component is used grinding machine grinding respectively
At powder；Then, 500 meshes are crossed, the powder of sieving is collected, it is spare；
The powder of collected sieving is separately added into the charging tray of rotary pelleting machine by step 2, 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；
Above-mentioned material is dried step 3 in explosion-proof baking oven, and explosion-proof baking oven is according to the rate of 15 DEG C/h 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；
Gained dry material is entered blender by step 4, then carries out remaining epoxy resin with dioctyl phthalate
Dilution, the uniform mixing of blender is added in epoxy resin after dilution, obtains semi-finished product；
Obtained semi-finished product are packed into cylindrantherae, are placed on press bench by step 5, push in 5MPa pressure
It is real, obtain above-mentioned aerosol type extinguishing chemical, it is preferred that cylindrantherae internal diameter is 40mm, high 100mm, charge 50-100g.
And above-mentioned steps one are specific further 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 are specific further include: the whiff pressure of rotary pelleting machine is 0.5MPa, whitewashing
Revolution speed is 5~25rmin-1, feeding machine revolving 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 purpose must expect that yield is greater than 90%.
In order to which the present invention is described in further detail, it is exemplified below more detailed embodiment and is illustrated.Following implementation
Example, the fire suppression applications experiment of extinguishing chemical product, be all made of GA 499.1-2010 " GAFES " part 1: hot gas is molten
Method as defined in glue extinguishing device carries out, and the usage amount of extinguishing chemical is 50g.
Embodiment 1
The composition of raw materials of aerosol type extinguishing chemical are as follows: press mass fraction, acerdol 14%, changes calcium sulphate dihydrate 22%
Property starch 10%, carbon dust 12%, nano-cellulose 2%, hexa 4%, ammonium dihydrogen phosphate 19%, calcium carbonate 10%,
Magnesium carbonate 3%, epoxy resin 4% (by the mass ratio of 1:1, dioctyl phthalate is added and makees solvent or diluent dilution).
The product of compression moulding (with one piece of cylindrantherae) is fitted into Compact Aerosol extinguishing device, electric starter (gas is packed into
Coolant, not compressed gas are not added in aerosol fire extinguisher), it carries out implementing area being 0.1m2The 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 extinguishing chemical are as follows: press mass fraction, acerdol 13%, changes calcium sulphate dihydrate 22%
Property starch 11%, carbon dust 12%, nano-cellulose 2%, hexa 3%, ammonium dihydrogen phosphate 20%, calcium carbonate 11%,
Magnesium carbonate 2.5%, epoxy resin 3.5% (by the mass ratio of 1:3, dioctyl phthalate is added and makees solvent or diluent dilution).
The product of compression moulding (with one piece of cylindrantherae) is fitted into Compact Aerosol extinguishing device, electric starter (gas is packed into
Coolant, not compressed gas are not added in aerosol fire extinguisher), it carries out implementing area being 0.1m2The 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 extinguishing chemical are as follows: press mass fraction, acerdol 20%, changes calcium sulphate dihydrate 16%
Property starch 12%, carbon dust 16%, nano-cellulose 3.5%, hexa 4.5%, ammonium dihydrogen phosphate 10%, calcium carbonate
15%, magnesium carbonate 1%, epoxy resin 2% (by the mass ratio of 1:2, dioctyl phthalate is added and makees solvent or diluent dilution).
The product of compression moulding (with one piece of cylindrantherae) is fitted into Compact Aerosol extinguishing device, electric starter (gas is packed into
Coolant, not compressed gas are not added in aerosol fire extinguisher), it carries out implementing area being 0.1m2The 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 extinguishing chemical are as follows: press mass fraction, acerdol 10%, changes calcium sulphate dihydrate 18%
Property starch 8%, carbon dust 10%, nano-cellulose 1%, hexa 2%, ammonium dihydrogen phosphate 25%, calcium carbonate 20%, carbon
Sour magnesium 2%, epoxy resin 4% (by the mass ratio of 1:1.5, dioctyl phthalate is added and makees solvent or diluent dilution).
The product of compression moulding (with one piece of cylindrantherae) is fitted into Compact Aerosol extinguishing device, electric starter (gas is packed into
Coolant, not compressed gas are not added in aerosol fire extinguisher), it carries out implementing area being 0.1m2The 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 the following table 1.
Comparative example 1
Extinguishing chemical is commercially available S type 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- embodiment 4 and comparative example 1, comparative example 2 carry out fire extinguishing comparative test
The table of comparisons.
Table 1
As can be seen that Examples 1 to 4 fire extinguishing success rate is 100% from upper table 1, the commercially available K-type higher than same type is gone out
Fiery agent and commercially available S type extinguishing chemical product (average out to 62.5%).
It can be appreciated that aerosol type extinguishing chemical of the invention, is fitted into aerosol fire-extinguishing device from the analysis of above-mentioned 1-4
(the certain pressure of combustion generated gas, formation in the device) can be used directly, be not necessarily to pressure reservoir.This is effectively improved
Convenience and safety in the storage and use process of extinguishing chemical, the conventional similar-type products ratio with the prior art have ten
Divide comparative advantages outstanding.
The specific extinguishing mechanism of the present invention are as follows:
Calcium carbonate and magnesium carbonate in composition are thermally decomposed at high temperature, release a large amount of carbon dioxide, titanium dioxide
Carbon is for putting out a fire；In calcium carbonate and magnesium carbonate, by thermal decomposition process, (calcium carbonate and magnesium carbonate are thermally decomposed, and a part is in aerosol
Carry out in extinguishing device, catching fire point carries out a part again after ejection) in, need to absorb a large amount of heat, both can incite somebody to action
The flame temperature of fire point reduces, auxiliary fire extinguishing, and advantageously reduces aerosol fire-extinguishing device nozzle temperature, and fire extinguishing dress is effectively ensured
The safety for operating with people is set, brings and uses upper convenience and safety.And calcium carbonate and magnesium carbonate are by thermal decomposition process, heat absorption
The reduction of caused ignition temperature, this will further result in comburant combustion process for gasifying combustibles molecule and by gas
The incendivity molecular cleavage of change is reduced at the heat of free radical, so that the speed of ignition point (continuation) combustion reaction is centainly pressed down
System.Also, it due to the calcium oxide generated after Decomposition of Calcium Carbonate, can be chemically reacted with the carbon in comburant, generate two
Carbonoxide.That is, the combustible component (carbon dust) in comburant is converted to incombustible inert gas (carbon dioxide), be conducive to prolong
The burning velocity of slow combustion object, the oxygen content for reducing combustion space promote the raising of blow-off velocity and efficiency.
In addition, comburant is during catching fire (that is, during maintaining combustion reaction persistently to carry out), it will continue
It is constantly cracked to form a large amount of, combustion continuation and carries out indispensable H, O, OH isoreactivity group of institute.And calcium carbonate and
Decomposed under magnesium carbonate high temperature, the calcium oxide and magnesia of generation, will respectively with these above-mentioned active groups (that is, H, O,
OH isoreactivity group) it chemically reacts, so that part consumes these active groups, inhibits between these active groups
Reaction, and then interrupt pyric chain, flame combustion inhibited to continue.
And in aerosol fire-extinguishing device, the electricity through aerosol fire-extinguishing device opens the oxidant and reducing agent in composition
After dynamic device igniting, violent redox reaction will occur, and release a large amount of heat, acerdol, two water in composition
Calcium sulfate, carbon dust and modified starch then begin to imperfect combustion, generate a large amount of flue gas, and it is molten that gas is formed after mixing with air
Glue；Nano-cellulose ingredient in composition, since its is flammable, ignition point is low, and large specific surface area, mainly make combustionregulator
With.That is, being held for the burning velocity of comhustible component in composition of igniting/accelerate with promoting aerosol fire-extinguishing device preliminary work
A large amount of aerosol is quickly formed in device.Aerosol fire-extinguishing device sprays six Asias in the composition that flue gas (in aerosol) is swept along
Tetramine, is covered on ignition point, and heat distillation absorbs a large amount of heat, can further decrease the temperature of ignition point, inhibits
The continuation of burning.Ammonium dihydrogen phosphate is thermally decomposed simultaneously, releases ammonia, the oxygen that can further dilute at ignition point position is dense
Degree inhibits the continuation of burning.The crystallization water is lost after calcium sulphate dihydrate is heated in the aerosol that extinguishing device sprays, can be consumed
Big calorimetric at fiery point is conducive to the continuation for inhibiting burning, decomposes solid inorganic oxides particle generated at high temperature, cover
It covers in kindling body surface, further functions as the effect of kindling body surface starvation, flame is promoted to extinguish because of anoxia asphyxia
The quickening of process.
It is above-mentioned about in aerosol type extinguishing chemical extinguishing mechanism explanatory note, related main chemical reactions equation is such as
Under:
(C6H10O5)6nHO(CO(CH2)2COO(CH2)4O)nH+Ca(MnO4)2→H2O↑+CO2↑+MnO2
NH4H2PO4→H3PO4+NH3↑
MgCO3→MgO↑+CO2↑
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 conclusion it is not difficult to find out that, between each component of aerosol extinguishing agent of the invention, " divide with fairly obvious
Work with cooperate " function and effect, there is between each component apparent synergistic effect, cooperate, mutually promote, make to bring about the desired sensation molten
Glue extinguishing chemical has good extinguishing ability and fire-fighting efficiency on the whole.
Aerosol sustained firing time average required for Examples 1 to 4 is put out a fire is about 11.5s, the commercially available K of same type
Aerosol sustained firing time average required for type extinguishing chemical and commercially available S type extinguishing chemical product are put out a fire is about 19.1s.Table
Bright, the aerosol sustained firing time required for Examples 1 to 4 is put out a fire, (average value) shortens 39.8% or so.
Illustrate the fire-fighting efficiency of aerosol type extinguishing chemical product of the invention, hence it is evident that the commercially available K-type higher than same type is put out a fire
Agent and commercially available S type extinguishing chemical product.
Certainly, described above is only that presently preferred embodiments of the present invention is answered the present invention is not limited to enumerate above-described embodiment
When explanation, anyone skilled in the art is all equivalent substitutes for being made, bright under the introduction of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (6)
1. a kind of aerosol type extinguishing chemical, is characterized in that, include: according to weight percent
2. aerosol type extinguishing chemical according to claim 1, is characterized in that, include: according to weight percent
The summation of the weight percent of above-mentioned each group point is 100%.
3. aerosol type extinguishing chemical according to claim 1, which is characterized in that above-mentioned epoxy resin uses benzene diformazan using preceding
Dioctyl phthalate is diluted as solvent or diluent, wherein the mass ratio of epoxy resin and dioctyl phthalate solvent or diluent is 1-3:1.
4. a kind of method for preparing aerosol type extinguishing chemical as described in claim 1 comprising following steps:
A, above-mentioned raw materials component is weighed respectively in corresponding ratio, and use grinding machine grinding at powder respectively taken material component；So
Afterwards, 500 meshes are crossed, the powder of sieving is collected, it is spare；
B, the powder of collected sieving is separately added into the charging tray of rotary pelleting machine, is added to rotation for the 1/3 of epoxy resin total amount
Turn the fluid reservoir of pelletizer；Then, start rotary pelleting machine, after material is sufficiently mixed uniformly, open the spray of rotary pelleting machine
Stock pump is granulated to obtain material；
C, above-mentioned material is dried in explosion-proof baking oven, explosion-proof baking oven is according to the rate of 15 DEG C/h from room temperature to 40
DEG C, then the freeze-day with constant temperature at 40 DEG C obtains dry material until material water ratio is less than or equal to 0.8%；
D, gained dry material is entered into blender, then the epoxy resin after remaining dilution is added to the uniform mixing of blender,
Obtain semi-finished product；
E, obtained semi-finished product are packed into cylindrantherae, are placed on press bench, are compacted under 5MPa pressure, is obtained above-mentioned
Aerosol type extinguishing chemical.
5. the preparation method according to claim 4, which is characterized in that above-mentioned steps A is specific further include: collect sieving pot
In tail in material incorporation next batch solid material, and fill back grinding machine grinding.
6. the preparation method according to claim 4, which is characterized in that above-mentioned steps B is specific further include: rotary pelleting machine
Whiff pressure be 0.5MPa, whitewashing revolution speed be 5~25rmin-1, feeding machine revolving 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 purpose must expect that yield is greater than 90%.
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| CN100435891C (en) * | 2007-07-10 | 2008-11-26 | 陕西坚瑞化工有限责任公司 | Fire extinguishing aerosol composition suitable for use for electric power equipment |
| 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 |
| CN101766878B (en) * | 2009-12-29 | 2012-01-11 | 广西国杰斯消防科技有限公司 | Aerosol fire extinguishing agent and wet preparation method thereof |
| CN101810918A (en) * | 2010-04-12 | 2010-08-25 | 广西国杰斯消防科技有限公司 | Solid sol type aerosol fire extinguishing agent and preparation method thereof |
| CN101862517B (en) * | 2010-07-01 | 2011-06-29 | 湖南省金鼎消防器材有限公司 | Compound type aerosol extinguishing agent |
| CN105983199A (en) * | 2015-01-29 | 2016-10-05 | 扬州凯伦达科技有限公司 | Gas producing agent for fire extinguisher |
-
2017
- 2017-09-29 CN CN201710905141.1A patent/CN107670217B/en not_active Expired - Fee Related
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