CN105963898A - Novel ABC dry powder extinguishing agent and preparation method thereof - Google Patents
Novel ABC dry powder extinguishing agent and preparation method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
- A62D1/0014—Powders; Granules
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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 provides a novel ABC dry powder extinguishing agent. The novel ABC dry powder extinguishing agent is mainly prepared from, by mass, 14-22 parts of caustic sludge, 36-48 parts of potassium sulphate, 25-35 parts of sodium oxalate, 8-14 parts of limestone, 5-10 parts of magnesium carbonate powder, 6-9 parts of methyl silicone oil, 7-13 parts of ammonium sulfate, 4-8 parts of zinc borate, 2-5 parts of stannic oxide, 3-6 parts of graphite powder and 1-5 parts of coal ash. The preparation method of the obtained product is simple; the fire extinguishing performance is excellent; the higher electrical insulating property, water repellency and anti-caking performance are achieved; industrial waste materials are utilized reasonably, so that the production cost is reduced; and the market prospect is good.
Description
Technical field
The present invention relates to extinguishing chemical field, particularly relate to new A BC powder extinguishing agent and preparation method.
Background technology
The fine particle that powder extinguishing agent is made up of co-ground after fire extinguishing base material (such as sodium bicarbonate, ammonium carbonate, the ammonium salt etc. of phosphoric acid) and moderate lubrication agent (magnesium stearate, mica powder, Pulvis Talci etc.), a small amount of anti-blushing agent (silica gel) mixing, makees injection power with carbon dioxide.The powder ejected, concentration is intensive, fine particles, covers and can constitute the sealing coat hindering burning on solid burning article, separates out non-combustible gas simultaneously, make the oxygen concentration in air reduce, fray-out of flame.Powder extinguishing agent, can with fill in various types of portable and fixed dry powder extinguishing installation, can with fluoroprotein foam extinguishing agent, aqueous film-forming foam extinguishing agent combination, oil tank of putting out a fire to save life and property from the beginning of fire, can quick control flame development, play the effect of fire extinguishing rapidly.
Publication No. CN 104645541 A(application number 201510070206.6) the open a kind of ABC powder extinguishing agent of knowing clearly of Chinese patent literature, it is characterized in that: by weight percentage, it is prepared from the following components: ammonium dihydrogen phosphate 50%～54%, ammonium sulfate 25%～28%, mica powder 1%～5%, active hargil 1%～5%, hydrophobic silicic aerogels 1%～5%, silicone oil 1%～3%, water 1%～3%, crosslinking catalyst 0.1%～0.5%, curing accelerator 0.1%～0.5%, inert filler 5%～20%.Publication No. CN 104436510 A(application number 201410760329.8) Chinese patent literature disclose the preparation method of a kind of ABC powder extinguishing agent, MAP, ammonium sulfate, nano silicon, bentonite, Muscovitum, tripolycyanamide, CNT, graphite, APP and coupling agent are mixed according to weight ratio, mixture is warmed up to 70 ~ 90 DEG C, spray into silicone oil in said mixture, add manganese hypophosphite, phosphomolybdic acid, diphosphopyridine nucleotide and nitric acid dihydroxy bismuth, stir 30 ~ 50min at 60 ~ 90 DEG C, obtain product D；With continuous modification laminating machine, product D being carried out pulverization process, the grain diameter to more than 80% is less than 30 microns, and 60 DEG C are stirred 20～40min with 300 ~ 1000rpm, dry products therefrom 2 ~ 4h for 90 ~ 100 DEG C, it is cooled to 30 DEG C, cools down 10 ~ 20min, obtain ABC powder extinguishing agent.Publication No. CN 103964407 A(application number 201410213324.3) Chinese patent literature disclose a kind of special ammonium phosphate salt of ABC powder extinguishing agent and production method thereof.It is with rock phosphate in powder broken after add water for ball milling after add concentrated sulphuric acid extraction after add water filtration, wash to obtain phosphoric acid by wet process；Add liquefied ammonia to neutralize, until stopping when nitrogen content reaches 9%～10%, pH value is 4～4.2；Last concentrated spray drying obtains.
Major part powder extinguishing agent the most on the market, its performance difference is relatively big, because repellency is poor, hydroscopicity is high so that product lumps, and the shelf-life shortens, causes fire-fighting efficiency low, therefore needs to strengthen research in this respect, improves defect further.
Summary of the invention
For problem of the prior art, it is an object of the invention to provide a kind of good extinguishing effect, the new A BC powder extinguishing agent using safety and stability and preparation method.
The technical scheme is that
New A BC powder extinguishing agent, is mainly prepared from by following raw materials according, is mass parts: alkaline residue 14-22, potassium sulfate 36-48, Disodium oxalate. 25-35, limestone 8-14, carbonic acid magnesium powder 5-10, methyl-silicone oil 6-9, ammonium sulfate 7-13, Firebrake ZB 4-8, stannum oxide 2-5, graphite powder 3-6, flyash 1-5.
Preferred version is, alkaline residue 16-20, potassium sulfate 40-44, Disodium oxalate. 28-32, limestone 10-12, carbonic acid magnesium powder 6-9, methyl-silicone oil 7-8, ammonium sulfate 9-11, Firebrake ZB 5-7, stannum oxide 3-4, graphite powder 4-5, flyash 2-4.
It is more preferable that alkaline residue 18, sulphuric acid K42, Disodium oxalate. 30, limestone 11, carbonic acid magnesium powder 7.5, methyl-silicone oil 7.5, ammonium sulfate 10, Firebrake ZB 6, stannum oxide 3.5, graphite powder 4.5, flyash 3.
The preparation method of described new A BC powder extinguishing agent, step is as follows:
(1) taking alkaline residue and limestone is placed in ball mill, attrition grinding 1-3 hour is (preferably: attrition grinding 1.5-2.5 hour；More preferably: attrition grinding 2 hours), take out dedusting to sieve；
(2) graphite powder is placed in the acetum that concentration is 45% and soaks 30-50 minute (preferably: soak 35-45 minute；More preferably: soak 40 minutes), take out constant temperature drying, pulverized 200 mesh sieves；
(3) potassium sulfate, Disodium oxalate., carbonic acid magnesium powder, ammonium sulfate, Firebrake ZB and stannum oxide are added in agitator, be heated to 50 DEG C-70 DEG C, stir 50-80 minute (preferably: stir 60-70 minute；More preferably: stir 65 minutes), adding flyash and step (1) (2) made raw material, quickly stirring 35 minutes, spray into methyl-silicone oil, are again warming up to 70 DEG C-110 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, remove large particulate matter, subpackage i.e. obtains powder extinguishing agent.
The preparation method of described new A BC powder extinguishing agent, step (1) dedusting crosses 100-160 mesh sieve (preferably: 120-140 mesh sieve is crossed in dedusting；More preferably: 130 mesh sieves are crossed in dedusting).
The preparation method of described new A BC powder extinguishing agent, it is 100-140 DEG C (preferably: dry temperature and be 110-130 DEG C that step (2) dries temperature；More preferably: drying temperature is 120 DEG C).
The preparation method of described new A BC powder extinguishing agent, step (3) is heated to 55-65 DEG C (preferably: be heated to 60 DEG C).
The preparation method of described new A BC powder extinguishing agent, the speed of step (3) quickly stirring be 800-1200 rev/min (preferably: quickly the speed of stirring is 900-1100 rev/min；More preferably: quickly the speed of stirring is 1000 revs/min).
The preparation method of described new A BC powder extinguishing agent, step (3) is warming up to 80 DEG C-100 DEG C (preferably: be again warming up to 90 DEG C) again.
The preparation method of described new A BC powder extinguishing agent, the mesh diameter of step (4) screen cloth is that 20 μm-40 μm are (preferred: the mesh diameter of screen cloth is 25 μm-35 μm；More preferably: the mesh diameter of screen cloth is 30 μm).
The new A BC powder extinguishing agent extinguishing property that the present invention provides is superior, and preparation method is simple, has higher electrical insulating property, repellency and caking performance, and Appropriate application industrial waste, reduces production cost, and market prospect is good.
Detailed description of the invention
Describe technical scheme in detail below in conjunction with embodiment and experimental example, but protection domain is not limited to this.
Embodiment 1New A BC powder extinguishing agent, is mainly prepared from (every part of 5kg) by following raw materials according: alkaline residue 14 parts, potassium sulfate 36 parts, Disodium oxalate. 25 parts, 8 parts of limestone, carbonic acid magnesium powder 5 parts, methyl-silicone oil 6 parts, 7 parts of ammonium sulfate, Firebrake ZB 4 parts, stannum oxide 2 parts, graphite powder 3 parts, 1 part of flyash.The preparation method of above-mentioned new A BC powder extinguishing agent is:
(1) take alkaline residue and limestone is placed in ball mill, attrition grinding 1 hour, take out dedusting and cross 100 mesh sieves；
(2) graphite powder is placed in the acetum that concentration is 45% to soak 30 minutes, takes out constant temperature 100 DEG C drying, pulverized 200 mesh sieves；
(3) potassium sulfate, Disodium oxalate., carbonic acid magnesium powder, ammonium sulfate, Firebrake ZB and stannum oxide are added in agitator, it is heated to 50 DEG C, stir 50 minutes, add flyash and step (1) (2) made raw material, with 800 revs/min of quick stirrings 35 minutes, spray into methyl-silicone oil, be again warming up to 70 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, the mesh diameter of screen cloth is 20 μm, removes large particulate matter, and subpackage i.e. obtains powder extinguishing agent.
Embodiment 2New A BC powder extinguishing agent, is mainly prepared from (every part of 5kg) by following raw materials according: alkaline residue 22 parts, potassium sulfate 48 parts, Disodium oxalate. 35 parts, 14 parts of limestone, carbonic acid magnesium powder 10 parts, methyl-silicone oil 9 parts, 13 parts of ammonium sulfate, Firebrake ZB 8 parts, stannum oxide 5 parts, graphite powder 6 parts, 5 parts of flyash.The preparation method of above-mentioned new A BC powder extinguishing agent is:
(1) take alkaline residue and limestone is placed in ball mill, attrition grinding 3 hours, take out dedusting and cross 160 mesh sieves；
(2) graphite powder is placed in the acetum that concentration is 45% to soak 50 minutes, takes out constant temperature 140 DEG C drying, pulverized 200 mesh sieves；
(3) potassium sulfate, Disodium oxalate., carbonic acid magnesium powder, ammonium sulfate, Firebrake ZB and stannum oxide are added in agitator, it is heated to 70 DEG C, stir 80 minutes, add flyash and step (1) (2) made raw material, with 1200 revs/min of quick stirrings 35 minutes, spray into methyl-silicone oil, be again warming up to 110 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, the mesh diameter of screen cloth is 40 μm, removes large particulate matter, and subpackage i.e. obtains powder extinguishing agent.
Embodiment 3New A BC powder extinguishing agent, is mainly prepared from (every part of 5kg) by following raw materials according: alkaline residue 16 parts, potassium sulfate 40 parts, Disodium oxalate. 28 parts, 10 parts of limestone, carbonic acid magnesium powder 6 parts, methyl-silicone oil 7 parts, 9 parts of ammonium sulfate, Firebrake ZB 5 parts, stannum oxide 3 parts, graphite powder 4 parts, 2 parts of flyash.The preparation method of above-mentioned new A BC powder extinguishing agent is:
(1) take alkaline residue and limestone is placed in ball mill, attrition grinding 1.5 hours, take out dedusting and cross 120 mesh sieves；
(2) graphite powder is placed in the acetum that concentration is 45% to soak 35 minutes, takes out constant temperature 110 DEG C drying, pulverized 200 mesh sieves；
(3) potassium sulfate, Disodium oxalate., carbonic acid magnesium powder, ammonium sulfate, Firebrake ZB and stannum oxide are added in agitator, it is heated to 55 DEG C, stir 60 minutes, add flyash and step (1) (2) made raw material, with 900 revs/min of quick stirrings 35 minutes, spray into methyl-silicone oil, be again warming up to 80 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, the mesh diameter of screen cloth is 25 μm, removes large particulate matter, and subpackage i.e. obtains powder extinguishing agent.
Embodiment 4New A BC powder extinguishing agent, is mainly prepared from (every part of 5kg) by following raw materials according: alkaline residue 20 parts, potassium sulfate 44 parts, Disodium oxalate. 32 parts, 12 parts of limestone, carbonic acid magnesium powder 9 parts, methyl-silicone oil 8 parts, 11 parts of ammonium sulfate, Firebrake ZB 7 parts, stannum oxide 4 parts, graphite powder 5 parts, 4 parts of flyash.The preparation method of above-mentioned new A BC powder extinguishing agent is:
(1) take alkaline residue and limestone is placed in ball mill, attrition grinding 2.5 hours, take out dedusting and cross 140 mesh sieves；
(2) graphite powder is placed in the acetum that concentration is 45% to soak 45 minutes, takes out constant temperature 130 DEG C drying, pulverized 200 mesh sieves；
(3) potassium sulfate, Disodium oxalate., carbonic acid magnesium powder, ammonium sulfate, Firebrake ZB and stannum oxide are added in agitator, it is heated to 65 DEG C, stir 70 minutes, add flyash and step (1) (2) made raw material, with 1100 revs/min of quick stirrings 35 minutes, spray into methyl-silicone oil, be again warming up to 100 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, the mesh diameter of screen cloth is 35 μm, removes large particulate matter, and subpackage i.e. obtains powder extinguishing agent.
Embodiment 5New A BC powder extinguishing agent, is mainly prepared from (every part of 5kg) alkaline residue 18 parts, sulphuric acid K42 part, Disodium oxalate. 30 parts by following raw materials according, 11 parts of limestone, carbonic acid magnesium powder 7.5 parts, methyl-silicone oil 7.5 parts, 10 parts of ammonium sulfate, Firebrake ZB 6 parts, stannum oxide 3.5 parts, graphite powder 4.5 parts, 3 parts of flyash.The preparation method of above-mentioned new A BC powder extinguishing agent is:
(1) take alkaline residue (purchased from Tianjin Alkali Plant, Bohai Chemical Co., Ltd, Tianjin) and limestone (purchased from Qingdao ten thousand Lei Shi industry company limited) is placed in ball mill, attrition grinding 2 hours, take out dedusting and cross 130 mesh sieves；
(2) graphite powder (purchased from Qingdao Teng Ruitansu company limited) is placed in the acetum that concentration is 45% to soak 40 minutes, takes out constant temperature 120 DEG C drying, pulverized 200 mesh sieves；
(3) by potassium sulfate (purchased from Yu Duo bio tech ltd, Shanghai), Disodium oxalate. (purchased from the auspicious Chemical Industry Science Co., Ltd of Jining Kant), carbonic acid magnesium powder (purchased from Hubei Ju Sheng Science and Technology Ltd.), ammonium sulfate (purchased from Ming Feng Chemical Co., Ltd. of Heng Zhou city), Firebrake ZB (purchased from Wuhan Xing Zhongcheng Science and Technology Ltd.) and stannum oxide (purchased from the flourishing chemical plant of friendship, Zichuan, Zibo City) add in agitator, it is heated to 60 DEG C, stir 65 minutes, add flyash (purchased from Hunan Bao Long development in science and technology company limited) and step (1) (2) made raw material, with 1000 revs/min of quick stirrings 35 minutes, spray into methyl-silicone oil (purchased from Jinan multidimensional bridge chemical industry Co., Ltd), again it is warming up to 90 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, the mesh diameter of screen cloth is 30 μm, removes large particulate matter, and subpackage i.e. obtains powder extinguishing agent.
Primary raw material used by the present invention:
Alkaline residue: refer in commercial production the alkaline scrap material of discharge in alkaline and alkali-treated journey, mainly it is made up of the bad calcium carbonate of crystallization, its chemical composition includes many oxide and chloride, alkaline residue has the advantages that water content is high, hole is big, compressibility is big, its material mostly is powder, water penetration is preferable, and under load action, consolidation is very fast, it is easy to implement consolidation process.
Potassium sulfate: the salt being made up of sulfate ion and potassium ion, can with the sylvite ore of sulfate type and containing potassium salt lake bittern water be that raw material is produced, be colourless under usual condition or white crystals, granule or powder.Odorlessness, bitter in the mouth.Matter is hard.Chemical property torpescence.Stable in the air.
Disodium oxalate.: the sodium salt of oxalic acid, is a kind of reducing agent, also frequently as bidentate ligand.Carbon monoxide and sodium hydroxide react under the conditions of 160 DEG C and 2MPa, generate sodium formate, then, then sodium formate dehydrogenation at a temperature of 400 DEG C are i.e. obtained Disodium oxalate..Can serve as metal-precipitator, reducing agent, chelating agent, screening agent, fabric, tanning finishing agent.
Limestone: be again limestone, it it is the carbonate rock with calcite as main component, it is mixed into dolomite, Gypsum Fibrosum, magnesite, pyrite, opal, calcedony, quartz, glauconite, fluorite etc., tramp material is less than 5%, there is the excellent performances such as heat conductivity, robustness, water absorption, air impermeability, sound-proofing, polishability, good bonding capacity and machinability, be all the important raw material of industry in metallurgy, building materials, chemical industry, light industry, building, agricultural and other special industry department.
Carbonic acid magnesium powder: white monoclinic crystal or amorphous powder.Gas nontoxic, tasteless is stablized.Relative density 2.16.It is slightly soluble in water, aqueous solution.In alkalescence, the dissolubility in water is 0.02%(15 DEG C).Can be used as the insulation material of refractory material, boiler and pipeline, and the additive of food, medicine, cosmetics, rubber, ink etc..
Methyl-silicone oil: be the linear polysiloxanes product at room temperature keeping liquid condition, the all methyl of its organic group, there is thermostability, electrical insulating property, weatherability, hydrophobicity, physiological inertia and the less surface tension of brilliance, also there is low viscosity-temperature coefficient, higher resistance to compression.Can be used as insulation, lubrication, shockproof, dust laying oil, dielectric liquid and heat carrier；Additive as froth breaking, demoulding, paint and daily cosmetics.
Ammonium sulfate: sterling is colourless rhomboidal crystal, industrial goods be white to pale yellow crystals body, have hygroscopicity, after moisture absorption consolidate in bulk.It is heated to more than 513 DEG C and resolves into ammonia, nitrogen, sulfur dioxide and water completely.It is mainly used as fertilizer, it is adaptable to various soil and crop.Can be additionally used in the aspects such as weaving, leather, medicine.
Firebrake ZB: be the non-halogen flame retardant of a kind of environment-friendly type, the features such as nontoxic, low aqueous solubility, high thermal stability, granularity are little, proportion is little, good dispersion, fire resistance can be effectively improved, the generation of smog when reducing burning, and the chemistry of Plastic Rubber Products can be regulated, machinery, the performance of the aspects such as electricity.
Stannum oxide: chemical formula is SnO2Formula weight is 150.71, white, faint yellow or light gray is cubic, six sides or orthorhombic system powder, and chemical stability is good, can be used for enamel and electromagnetic material, and for manufacturing opal glass, pink salt, porcelain coloring agent, fabric mordant and the buffing compound etc. of weighting agent, steel and glass.
Graphite powder: matter is soft, black gray expandable；There is greasy feeling, paper can be polluted.Hardness is 1-2, and under room temperature, the chemical property of graphite powder is more stable, water insoluble, diluted acid, diluted alkaline and organic solvent；Material has high temperature resistant electric conductivity, can do refractory material, conductive material, wear-resisting lubriation material.
Flyash: being to receive the flue gas after coal combustion to catch the fine ash got off, major oxide constituents is SiO2、Al2O3And a small amount of FeO, Fe2O3、CaO、MgO、SO3、TiO2Deng, wherein SiO2And Al2O3Content can account for the 65% of total content, and coal ash particle is porous type cellular tissue, and specific surface area is relatively big, has higher adsorption activity.
Test example 1 The performance test of gained new A BC powder extinguishing agent (embodiment 5) of the present invention:
1. traditional performance detection: the national standard with reference to GB 40662-2004 detects.
Detection technique performance indications: as shown in table 1:
Table 1 ABC powder extinguishing agent main performance index
Choose products obtained therefrom of the present invention to test respectively according to test method with commercial common ABC powder extinguishing agent, record test result.
Test result is as shown in table 2:
The performance test results contrast of 2 liang of table group
As shown in Table 2, each technical specification of products obtained therefrom of the present invention and commercial products all meets national standard, and the hydroscopicity reduction more obvious than commercial products of products obtained therefrom of the present invention, anticaking capacity and electrical insulating property increase, fire extinguishing success rate is higher, illustrate that products obtained therefrom extinguishing property of the present invention is more superior, there is good prospect.
It should be pointed out that, the detailed description of the invention more representational example that is the present invention, it is clear that technical scheme is not limited to above-described embodiment, it is also possible to have many variations.Those of ordinary skill in the art, with the present invention undoubted the obtaining of clearly disclosed or according to file written description, be all considered as this patent scope of the claimed.
Claims (10)
1. new A BC powder extinguishing agent, it is characterised in that be mainly prepared from by following raw materials according, it is mass parts: alkaline residue 14-22, potassium sulfate 36-48, Disodium oxalate. 25-35, limestone 8-14, carbonic acid magnesium powder 5-10, methyl-silicone oil 6-9, ammonium sulfate 7-13, Firebrake ZB 4-8, stannum oxide 2-5, graphite powder 3-6, flyash 1-5.
2. new A BC powder extinguishing agent as claimed in claim 1, it is characterised in that alkaline residue 16-20, potassium sulfate 40-44, Disodium oxalate. 28-32, limestone 10-12, carbonic acid magnesium powder 6-9, methyl-silicone oil 7-8, ammonium sulfate 9-11, Firebrake ZB 5-7, stannum oxide 3-4, graphite powder 4-5, flyash 2-4.
3. new A BC powder extinguishing agent as claimed in claim 1, it is characterised in that alkaline residue 18, sulphuric acid K42, Disodium oxalate. 30, limestone 11, carbonic acid magnesium powder 7.5, methyl-silicone oil 7.5, ammonium sulfate 10, Firebrake ZB 6, stannum oxide 3.5, graphite powder 4.5, flyash 3.
4. the preparation method of the new A BC powder extinguishing agent as described in claim 1-3 is arbitrary, it is characterised in that step is as follows:
(1) taking alkaline residue and limestone is placed in ball mill, attrition grinding 1-3 hour is (preferably: attrition grinding 1.5-2.5 hour；More preferably: attrition grinding 2 hours), take out dedusting to sieve；
(2) graphite powder is placed in the acetum that concentration is 45% and soaks 30-50 minute (preferably: soak 35-45 minute；More preferably: soak 40 minutes), take out constant temperature drying, pulverized 200 mesh sieves；
(3) potassium sulfate, Disodium oxalate., carbonic acid magnesium powder, ammonium sulfate, Firebrake ZB and stannum oxide are added in agitator, be heated to 50 DEG C-70 DEG C, stir 50-80 minute (preferably: stir 60-70 minute；More preferably: stir 65 minutes), adding flyash and step (1) (2) made raw material, quickly stirring 35 minutes, spray into methyl-silicone oil, are again warming up to 70 DEG C-110 DEG C, keep temperature-resistant, dry discharging；
(4) being sieved by step (3) made final products, remove large particulate matter, subpackage i.e. obtains powder extinguishing agent.
5. the preparation method of new A BC powder extinguishing agent as claimed in claim 4, it is characterised in that step (1) dedusting crosses 100-160 mesh sieve (preferably: 120-140 mesh sieve is crossed in dedusting；More preferably: 130 mesh sieves are crossed in dedusting).
6. the preparation method of new A BC powder extinguishing agent as claimed in claim 4, it is characterised in that step (2) dry temperature be 100-140 DEG C (preferably: dry temperature and be 110-130 DEG C；More preferably: drying temperature is 120 DEG C).
7. the preparation method of new A BC powder extinguishing agent as claimed in claim 4, it is characterised in that step (3) is heated to 55-65 DEG C (preferably: be heated to 60 DEG C).
8. the preparation method of new A BC powder extinguishing agent as claimed in claim 4, it is characterised in that the speed of step (3) quickly stirring be 800-1200 rev/min (preferably: quickly the speed of stirring is 900-1100 rev/min；More preferably: quickly the speed of stirring is 1000 revs/min).
9. the preparation method of new A BC powder extinguishing agent as claimed in claim 4, it is characterised in that step (3) is warming up to 80 DEG C-100 DEG C (preferably: be again warming up to 90 DEG C) again.
10. the preparation method of new A BC powder extinguishing agent as claimed in claim 4, it is characterised in that the mesh diameter of step (4) screen cloth is that 20 μm-40 μm are (preferred: the mesh diameter of screen cloth is 25 μm-35 μm；More preferably: the mesh diameter of screen cloth is 30 μm).
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| CN1597024A (en) * | 2004-09-17 | 2005-03-23 | 四川大学 | Anti-refiring ultrafine ammonium phosphate dry chemical fire-extinguishing agent and its preparation method |
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| CN102319499A (en) * | 2011-07-19 | 2012-01-18 | 南京理工大学 | Built-up synergetic class-A/B water extinguishing agent series |
| CN102824717A (en) * | 2012-09-12 | 2012-12-19 | 山东长星集团有限公司 | Fire extinguishing agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111135520A (en) * | 2019-12-12 | 2020-05-12 | 海天消防科技股份有限公司 | Superfine dry powder extinguishing agent and preparation method thereof |
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| CN105963898B (en) | 2019-07-05 |
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