CN109589541A - Lithium battery extinguishing chemical and lithium battery extinguishing device - Google Patents
Lithium battery extinguishing chemical and lithium battery extinguishing device Download PDFInfo
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- CN109589541A CN109589541A CN201811224137.XA CN201811224137A CN109589541A CN 109589541 A CN109589541 A CN 109589541A CN 201811224137 A CN201811224137 A CN 201811224137A CN 109589541 A CN109589541 A CN 109589541A
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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
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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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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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
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- Battery Electrode And Active Subsutance (AREA)
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Abstract
A kind of lithium battery extinguishing chemical provided is provided, including dry-chemical fire extinguishing mixture and aluminium hydroxide and oxidation calcium compound, the aluminium hydroxide and oxidation calcium compound include powdered aluminium hydroxide and lime powder, wherein by weight, aluminium hydroxide is (6-8) part, and calcium oxide is (2-4) part；Dry-chemical fire extinguishing mixture is made from the following raw materials in parts by weight: by weight, 40-50 parts of smectite powder, 5-10 parts of mica powder, 20-30 parts of ammonium carbonate；20-30 modified active sewage sludge powder；It is hydrated zinc sulphide 10-15 parts, 6-8 parts of calcium oxide, 5-8 parts of magnesium stearate, 3-5 parts of silicone emulsion, 2-4 parts of zinc borate, 1-3 parts of chlorinated paraffin, 4-5 parts of diatomite.Lithium battery heating generation toxic gas cannot be effectively absorbed by solving existing extinguishing chemical, and aqueous extinguishing chemical be easy to cause short circuit, may further generate new high temperature heat source, aggravates the defect of the sprawling of the intensity of a fire instead.
Description
Technical field
The present invention relates to extinguishing chemical fields, and in particular to a kind of lithium battery extinguishing chemical and lithium battery extinguishing device.
Background technique
Role is increasing in various application fields for lithium-ion electric core.Known and a wide range of use is used for
The for example, lithium-ion electric of the electronic equipment of mobile phone, laptop, electric tool, portable MP3 player etc.
Pond.Lithium ion battery applied to automotive field can will equally play an important role in the near future.Lithium ion polymer
The meaning of battery core is packaged in the lithium-ion electric core in aluminium laminated film.
Almost in all lithium ion batteries, lithium hexafluoro phosphate (LiPF6) is used as conductive salt, in cell damage
(such as when thermal runaway occurs), which can resolve into, to be easy to react and toxic compound.Lithium hexafluoro phosphate is from about 110
DEG C temperature rise generate decomposition product had the compound for being easy to react: PF3(phosphorus trifluoride), PF5(five fluorinations
Phosphorus), HF (hydrogen fluoride, also referred to as hydrofluoric acid) and POF3(fluorine phosphorous oxide).Furthermore, it is also possible to which it is toxic and have corruption to generate other
Phosphorus/oxygen/fluorine compounds of corrosion.LiPF in the absence of water6Thermal decomposition from about 110 DEG C according to following reaction
It carries out: LiPF6→LiF(s)+PF5(g), wherein s indicates solid-state, and g indicates gaseous state.When there is water, lithium hexafluoro phosphate is with such as lower section
Formula hydrolysis: LiPF6+2H2O→LiOH(s)+POF3(g)+3HF(g)；In addition, being also noted that following hydrolysis: PF in principle5+
H2O→POF3+2HF；POF3+3H2O→H3PFO4+ 3HF it means that the intermediate trifluoro oxygen phosphorus generated by with water (such as with
The form of moisture) reaction be finally also hydrolyzed into the hydrogen fluoride (HF) for being easy to react.Thus main thermal decomposition or burning
Product be hydrogen fluoride gas.And be fluorinated Hydrogen Energy and react with common metal, it releases hydrogen and is formed with air explosive mixed
Close object.
In general, not allowing battery failure technically when using and testing battery especially lithium ion battery.If
Still this battery failure and burning or " thermal runaway " occurs, then needing to prevent burning and avoiding pollution ambient enviroment
Measure.Term " thermal runaway " means the thermal breakdown of lithium-ion electric core, wherein being put due to excessive in battery and enhancing itself
Hot and/or insufficient heat dissipation is it is possible that battery core cracks, wherein being also possible to that cigarette, kindling or explosion can be generated.It is existing
Extinguishing chemical can not effectively absorb lithium battery heating and generate toxic gas (it contains a large amount of HF gas), and can not be from basic
It is upper to eliminate the ignition substance for being easy to produce explosion, it makes it easy to that re-ignition occurs；Although and at present can be with using aqueous extinguishing chemical
HF gas is dissolved, but produces a large amount of fluorine-containing solution, and extinguishing chemical is sprayed on notebook or electric vehicle using lithium battery,
It is be easy to cause short circuit, may further generate new high temperature heat source, aggravates the sprawling of the intensity of a fire instead.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of lithium battery extinguishing chemicals, and lithium battery cannot be effectively absorbed by solving existing extinguishing chemical
Heating generates toxic gas, and aqueous extinguishing chemical be easy to cause short circuit, may further generate new high temperature heat source,
Aggravate the defect of the sprawling of the intensity of a fire instead.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of lithium battery extinguishing chemical, comprising:
Dry-chemical fire extinguishing mixture and aluminium hydroxide and oxidation calcium compound, the aluminium hydroxide and oxidation calcium compound include powder
The aluminium hydroxide and lime powder of shape, wherein by weight, aluminium hydroxide is (6-8) part, calcium oxide is (2-4) part；
Dry-chemical fire extinguishing mixture is made from the following raw materials in parts by weight: by weight, 40-50 parts of smectite powder, mica powder
5-10 parts, 20-30 parts of ammonium carbonate；20-30 modified active sewage sludge powder；Hydration zinc sulphide 10-15 part, 6-8 parts of calcium oxide, firmly
5-8 parts of fatty acid magnesium, 3-5 parts of silicone emulsion, 2-4 parts of zinc borate, 1-3 parts of chlorinated paraffin, 4-5 parts of diatomite.
One side aluminium-hydroxide powder in the present invention can carry out reacting to produce with HF gas not dissolving at 400-500 DEG C
The AlF of water3·3HF；(AlF3·3HF 6HF+Al(OH)3→AlF3·3HF+3H2O also using oxidation in the ground present invention that) matches
The moisture generated in calcium powder absorbing reaction eliminates AlF3The risk of water decomposition is met under 3HF high temperature.1 mole of Al (OH)3It can inhale
6 moles of hydrogen fluoride gas is received, absorption efficiency is higher.
On the other hand smectite powder 40-50 parts, 20-30 parts of ammonium carbonate is used in the present invention；20-30 modified active is dirty
Mud powder and 6-8 parts of calcium oxide, wherein there is smectite powder large surface area can adsorb a large amount of toxic gases；Simultaneously
The present invention also uses modified activated sludge, equally there is large surface area can adsorb a large amount of toxic gases, and turn waste into wealth,
More environmentally-friendly economy, ammonium carbonate endothermic decomposition generate alkaline gas ammonia, can absorb and leave after aluminium-hydroxide powder absorbs
HF gas, while generate carbon dioxide gas be attached to lithium battery surface be easier eliminate fire source；Dry-chemical fire extinguishing of the invention
Agent does not use aqueous solution, is more suitable for the electric appliances such as precision instrument or notebook.The present invention solves existing extinguishing chemical and cannot have
Effect ground absorbs lithium battery heating and generates toxic gas, and aqueous extinguishing chemical be easy to cause short circuit, may further produce
Raw new high temperature heat source, aggravates the defect of the sprawling of the intensity of a fire instead.
Preferably, the smectite powder is prepared by following methods: montmorillonite is calcined at 600-800 DEG C of temperature
4-5 hours, then impregnated 3-4 hours with 5-6% hydrochloric acid solution, it is washed with deionized to neutrality, drying, is then added suitable
In the modified active sewage sludge powder of powder weight 5-6%, the cetyl trimethylammonium bromide of 3-4%, in 80-100 DEG C of constant temperature
Under the conditions of stir 3-5 hours after stand 10 hours, dry, pulverize granulation under 80-100 DEG C of constant temperature.
The modified active sewage sludge powder by activated Sludge System outside secondary sedimentation tank (or settling zone) discharge system
Activated sludge carry out calcining 2-3h in 400-500 DEG C of temperature, calcined powder is soaked using 1-2% calcium hydroxide solution
Bubble 6-7 hour, then 100-120 DEG C at a temperature of to dry, pulverize granulation obtained.The present invention is impregnated using calcium hydroxide solution
Modified active sludge is made, acid hydrogen fluoride gas is more easily absorbed using its higher specific surface.
Preferably, the aluminium-hydroxide powder powder moisture is less than 0.05%.
Preferably, the moisture of the activated sludge powder is less than 0.2%.
Preferably, the dry-chemical fire extinguishing mixture further includes atlapulgite, and by weight, the atlapulgite is 4-5 parts.
A kind of lithium battery extinguishing device using above-mentioned lithium battery extinguishing chemical provided by the invention, including the first fire extinguisher and
Second fire extinguisher, first fire extinguisher assemble dry-chemical fire extinguishing mixture；Second fire extinguisher includes separate mesh and several
Capsule filled with nitrogen on the inside of separate mesh, the separate mesh and capsule are fixed on the outside of lithium battery；Described first goes out
Firearm is located at the outside of the second fire extinguisher；The separate mesh is made of flame-retardant sebific duct flexible braiding, the flame-retardant
Sebific duct is provided with aluminium hydroxide and oxidation calcium compound, the flame-retardant sebific duct are equipped with micropore, with the connection external world and metal
Aluminium hydroxide and oxidation calcium compound in pipe；The gap of 1-2cm is formed after the capsule expanded by heating.It is provided by the invention to go out
Fiery device includes the first fire extinguisher and the second fire extinguisher, and the capsule heat of second fire extinguisher expands to form the gap 1-2cm,
The capsule that volume increases, which opens separate mesh, has bigger surface area, and it is climing that the nitrogen in capsule forms first of prevention intensity of a fire
The fire line prolonged, when the intensity of a fire expands, when temperature reaches 400 DEG C to thermally decompose the HF gas and aluminium hydroxide that generate in separate mesh
Powdered reaction, the HF gas of omission further absorb under the sprinkling for the dry-chemical fire extinguishing mixture that the first fire extinguisher is provided with, and
Fire extinguishing.
Preferably, the capsule takes fusing point to be made of 200-220 DEG C of thermoplastic flame-proof resin.Using thermoplastic flame-proof
Resin deforms at high temperature, discharges internal nitrogen covering lithium battery surface for preventing lighting for the intensity of a fire.
Preferably, also there is tricresyl phosphate (2- chloropropyl) ester in the thermoplastic flame-proof resin.
Preferably, the capsule is flat structure when not heating；There is arc fixed plate, bottom at the top of the capsule
Portion has the shape for being tightly attached to lithium battery surface.
(3) beneficial effect
A kind of extinguishing chemical provided by the invention, has the advantage that
1, the one side aluminium-hydroxide powder in the present invention is at 400-500 DEG C, with HF gas can react produce it is not soluble in water
AlF3·3HF；(AlF3·3HF 6HF+Al(OH)3→AlF3·3HF+3H2O also using calcium oxide in the ground present invention that) matches
The moisture generated in powder absorbing reaction eliminates AlF3The risk of water decomposition is met under 3HF high temperature.1 mole of Al (OH)3It can absorb
6 moles of hydrogen fluoride gas, absorption efficiency are higher.
2, smectite powder 40-50 parts, 20-30 parts of ammonium carbonate is on the other hand used in the present invention；20-30 modified active
Sewage sludge powder and 6-8 parts of calcium oxide, wherein there is smectite powder large surface area can adsorb a large amount of toxic gases；Together
When the present invention also use modified activated sludge, equally there is large surface area can adsorb a large amount of toxic gases, and become give up into
Treasured, more environmentally-friendly economy, ammonium carbonate endothermic decomposition generate alkaline gas ammonia, can absorb and lose after aluminium-hydroxide powder absorbs
The HF gas stayed, while generating carbon dioxide gas and being attached to lithium battery surface more easily elimination fire source；Dry powder of the invention goes out
Fiery agent does not use aqueous solution, is more suitable for the electric appliances such as precision instrument or notebook.The present invention solves existing extinguishing chemical cannot
It effectively absorbs lithium battery heating and generates toxic gas, and aqueous extinguishing chemical be easy to cause short circuit, it may be further
New high temperature heat source is generated, aggravates the defect of the sprawling of the intensity of a fire instead.
3, the present invention is impregnated using calcium hydroxide solution is made modified active sludge, is easier to using its higher specific surface
Absorb acid hydrogen fluoride gas.
4, extinguishing device provided by the invention includes the first fire extinguisher and the second fire extinguisher, the glue of second fire extinguisher
Capsule heat expands to form the gap 1-2cm, and the capsule that volume increases, which opens separate mesh, has bigger surface area, in capsule
Nitrogen forms the fire line of first of prevention fire spreading, when the intensity of a fire expands, when temperature reaches 400 DEG C with heat point in separate mesh
The HF gas that solution generates is reacted with aluminium-hydroxide powder, the HF gas of omission, mixed in the dry-chemical fire extinguishing that the first fire extinguisher is provided with
It closes and is further absorbed under the sprinkling of object, and put out a fire.
Detailed description of the invention
Fig. 1 is the lithium battery extinguishing device structural schematic diagram of the embodiment of the present invention 3；
Fig. 2 is the flame-retardant sebific duct structural schematic diagram of the lithium battery extinguishing device of the embodiment of the present invention 3.
1, the first fire extinguisher；2, the second fire extinguisher；3, separate mesh；4, capsule；5, flame-retardant sebific duct；6, micropore；7, arc
Shape fixed plate.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
Professional term involved in the present invention:
Activated sludge in municipal sewage plant's activated Sludge System outside secondary sedimentation tank (or settling zone) discharge system by taking
Material can obtain.
Embodiment 1:
A kind of lithium battery extinguishing chemical provided by the invention, comprising:
Dry-chemical fire extinguishing mixture and aluminium hydroxide and oxidation calcium compound, the aluminium hydroxide and oxidation calcium compound include powder
The aluminium hydroxide and lime powder of shape, wherein by weight, aluminium hydroxide is 6 parts, calcium oxide is 2 parts；
Dry-chemical fire extinguishing mixture is made from the following raw materials in parts by weight: by weight, 40 parts of smectite powder, 5 parts of mica powder,
20 parts of ammonium carbonate；20 modified active sewage sludge powders；It is hydrated 10 parts of zinc sulphide, 6 parts of calcium oxide, 5 parts of magnesium stearate, silicone emulsion 3
Part, 2 parts of zinc borate, 1 part of chlorinated paraffin, 4 parts of diatomite and 4 parts of atlapulgite.
The smectite powder is prepared by following methods: montmorillonite being calcined 4 hours at 600 DEG C of temperature, then is used
5% hydrochloric acid solution impregnates 3 hours, is washed with deionized to neutrality, then drying is added and is equivalent to changing for powder weight 5%
Property activated sludge powder, 3% cetyl trimethylammonium bromide, it is small that 10 are stood after stirring 3 hours under 80 DEG C of constant temperatures
When, it dry, pulverize granulation under 80 DEG C of constant temperatures.
The modified active sewage sludge powder by activated Sludge System outside secondary sedimentation tank (or settling zone) discharge system
Activated sludge carry out calcining 2h in 400 DEG C of temperature, by calcined powder using 1% calcium hydroxide solution impregnate 6 hours,
Then 100 DEG C at a temperature of dry, pulverize granulation be made.
The aluminium-hydroxide powder powder moisture is less than 0.05%.The moisture of the activated sludge powder is less than 0.2%.
Embodiment 2:
A kind of lithium battery extinguishing chemical provided by the invention, comprising:
Dry-chemical fire extinguishing mixture and aluminium hydroxide and oxidation calcium compound, the aluminium hydroxide and oxidation calcium compound include powder
The aluminium hydroxide and lime powder of shape, wherein by weight, aluminium hydroxide is 8 parts, calcium oxide is 4 parts；
Dry-chemical fire extinguishing mixture is made from the following raw materials in parts by weight: by weight, 50 parts of smectite powder, mica powder 10
Part, 30 parts of ammonium carbonate；30 modified active sewage sludge powders；It is hydrated 15 parts of zinc sulphide, 8 parts of calcium oxide, 8 parts of magnesium stearate, emulsification
5 parts of silicone oil, 4 parts of zinc borate, chlorinated paraffin part, 5 parts of diatomite and 5 parts of atlapulgite.
The smectite powder is prepared by following methods: montmorillonite being calcined 5 hours at 800 DEG C of temperature, then is used
6% hydrochloric acid solution impregnates 4 hours, is washed with deionized to neutrality, then drying is added and is equivalent to changing for powder weight 6%
Property activated sludge powder, 4% cetyl trimethylammonium bromide, stand 10 after stirring 3-5 hours under 100 DEG C of constant temperatures
Hour, it dry, pulverize granulation under 100 DEG C of constant temperatures.
The modified active sewage sludge powder by activated Sludge System outside secondary sedimentation tank (or settling zone) discharge system
Activated sludge carry out calcining 3h in 500 DEG C of temperature, by calcined powder using 2% calcium hydroxide solution impregnate 7 hours,
Then 120 DEG C at a temperature of dry, pulverize granulation be made.
The aluminium-hydroxide powder powder moisture is less than 0.05%.The moisture of the activated sludge powder is less than 0.2%.
Comparative example 1:
A kind of lithium battery extinguishing chemical provided by the invention, comprising:
Dry-chemical fire extinguishing mixture and aluminium hydroxide and oxidation calcium compound, the aluminium hydroxide and oxidation calcium compound include powder
The aluminium hydroxide and lime powder of shape, wherein by weight, aluminium hydroxide is 5 parts, calcium oxide is 5 parts；
Dry-chemical fire extinguishing mixture is made from the following raw materials in parts by weight: by weight, 39 parts of smectite powder, 4 parts of mica powder,
19 parts of ammonium carbonate；31 modified active sewage sludge powders；It is hydrated 9 parts of zinc sulphide, 5 parts of calcium oxide, 4 parts of magnesium stearate, silicone emulsion 2
Part, 5 parts of zinc borate, 0.5 part of chlorinated paraffin, 3 parts of diatomite and 3 parts of atlapulgite.
The smectite powder is prepared by following methods: montmorillonite calcined 3.5 hours at 590 DEG C of temperature, then
It is impregnated 2.9 hours, is washed with deionized to neutrality, then drying is added and is equivalent to powder weight with 4.5% hydrochloric acid solution
It is small to stir 2.9 under 79 DEG C of constant temperatures for 4.9% modified active sewage sludge powder, 4.2% cetyl trimethylammonium bromide
When after stand 10 hours, dry, pulverize granulation under 79 DEG C of constant temperatures.
The modified active sewage sludge powder by activated Sludge System outside secondary sedimentation tank (or settling zone) discharge system
Activated sludge carry out calcining 1.9h in 390 DEG C of temperature, by calcined powder using 0.9% calcium hydroxide solution impregnate 7.1
Hour, then 90 DEG C at a temperature of dry, pulverize granulation be made.
The aluminium-hydroxide powder powder moisture is less than 0.05%.The moisture of the activated sludge powder is less than 0.2%.
Combustion test:
The combustion test of adjoint analysis is exemplarily carried out to the commercially available lithium ion battery of Shenzhen Wald Electronics Co., Ltd..
For this purpose, lithium ion battery at module and is enclosed integrated circuit board and iron plate and overcharge and deliberately driven by assembled in series
Dynamic " thermal runaway ", to cause burning.After first lithium ion battery (under flame effect) in composite module is lighted, use
Different extinguishing chemicals are put out a fire, and are assessed fire protecting performance and are studied the free fluorine ion in fire extinguishing waste water；And to integrated electricity
The damage of road plate and whether generating fires.
When using carbon dioxide as extinguishing chemical, air is only excluded in a short time and thus be excluded that oxygen.In addition, cold
But efficiency is insufficient, so that not being avoided that lighting for adjacent cell after first battery is lighted；At iron plate after being corroded
Generate violent spark.Acutely discharge flue gas is also observed；Integrated circuit board is heated deformation.
When using aqueous extinguishing chemical, after first battery is lighted, fire extinguishing waste water is lost or evaporation.Observe play
Strong discharge flue gas.It can detect that fluorine ion in fire extinguishing waste water；Violent spark is not generated at iron plate after being corroded；Together
Shi Hanshui extinguishing chemical makes integrated circuit board by water heavy corrosion.
When using the composition of embodiment 1 to 2, the separate mesh equipped with aluminium hydroxide and calcium hydroxide mixture is placed in
It puts out a fire on flammability battery (fire source) and using the second fire extinguisher equipped with dry-chemical fire extinguishing object, wherein aluminium hydroxide
And the separate mesh of calcium hydroxide mixture is placed in flammability battery and can effectively absorb hydrogen fluoride gas by providing and avoid
Other batteries are lighted, and avoid HF gas and metal bonding generates the explosive containing hydrogen；At iron plate after being corroded
There is no spark.Compared to the combustion test with carbon dioxide, aqueous extinguishing chemical, can be observed by the composition of embodiment 1 to 2
To obvious preferably flue gas inhibitory effect and significantly less flue gas emission, there is no fluorine ion can be detected in waste water, significantly
Corrosion of the hydrogen fluoride gas to iron plate is weakened, explosion gas will not be generated；And there is no the corrosion to circuit board.Comparative example
1 has worse flue gas inhibitory effect and more flue gas emissions compared to embodiment 1 to 2.
A kind of embodiment 3: lithium battery extinguishing chemical provided by the invention, comprising the following steps:
As shown in Figure 1 and Figure 2, a kind of lithium battery extinguishing device using above-mentioned lithium battery extinguishing chemical, including 1 He of the first fire extinguisher
Second fire extinguisher 2, first fire extinguisher assemble dry-chemical fire extinguishing mixture；Second fire extinguisher includes separate mesh 3 and several
A to be located at the interior capsule 4 filled with nitrogen on the inside of separate mesh, the separate mesh and capsule are fixed on the outside of lithium battery；Described first
Fire extinguisher is located at the outside of the second fire extinguisher；The separate mesh is made of flame-retardant sebific duct 5 flexible braiding, described fire-retardant resistance to
Fiery sebific duct is provided with aluminium hydroxide and oxidation calcium compound, the flame-retardant sebific duct are equipped with micropore 6, extraneous and golden with connection
Belong to the aluminium hydroxide and oxidation calcium compound in pipe；The gap of 1-2cm is formed after the capsule expanded by heating.The capsule is taken
Fusing point is made of 200-220 DEG C of thermoplastic flame-proof resin.Also there is tricresyl phosphate (2- chlorine third in the thermoplastic flame-proof resin
Base) ester.The capsule is flat structure when not heating；There is arc fixed plate 7, bottom has tight at the top of the capsule
It is affixed on the shape on lithium battery surface.
When the embodiment of the present invention is implemented, the capsule heat of the second fire extinguisher expands to form the gap 1-2cm, what volume increased
Capsule, which opens separate mesh, has bigger surface area, and the nitrogen in capsule forms the fire prevention of first of prevention fire spreading
Line, when the intensity of a fire expand when, when in separate mesh temperature reach 400 DEG C with thermally decompose generate HF gas and aluminium-hydroxide powder it is anti-
It answers, the HF gas of omission is further absorbed under the sprinkling for the dry-chemical fire extinguishing mixture that the first fire extinguisher is provided with, and put out a fire.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type etc. are all can be
Variation, all equivalents and improvement carried out based on the technical solution of the present invention should not be excluded of the invention
Except protection scope.
Claims (10)
1. a kind of lithium battery dry powder fire extinguishing agent characterized by comprising dry-chemical fire extinguishing mixture and aluminium hydroxide and calcium oxide
Mixture, the aluminium hydroxide and oxidation calcium compound include powdered aluminium hydroxide and lime powder, wherein by weight
Part, aluminium hydroxide is (6-8) part, and calcium oxide is (2-4) part；
Dry-chemical fire extinguishing mixture is made from the following raw materials in parts by weight: by weight, 40-50 parts of smectite powder, mica powder
5-10 parts, 20-30 parts of ammonium carbonate；20-30 modified active sewage sludge powder；Hydration zinc sulphide 10-15 part, 6-8 parts of calcium oxide, firmly
5-8 parts of fatty acid magnesium, 3-5 parts of silicone emulsion, 2-4 parts of zinc borate, 1-3 parts of chlorinated paraffin, 4-5 parts of diatomite.
2. lithium battery dry powder fire extinguishing agent as described in claim 1, which is characterized in that the smectite powder is by following
Method preparation: montmorillonite is calcined 4-5 hours at 600-800 DEG C of temperature, then is impregnated 3-4 hours with 5-6% hydrochloric acid solution, is used
Deionized water is washed to neutrality, then modified active sewage sludge powder, the 3-4% for being equivalent to powder weight 5-6% is added in drying
Cetyl trimethylammonium bromide, 10 hours are stood after stirring 3-5 hours under 80-100 DEG C of constant temperature, at 80-100 DEG C
It dry, pulverize granulation under constant temperature.
3. lithium battery dry powder fire extinguishing agent as claimed in claim 2, which is characterized in that the modified active sewage sludge powder is by activity
It is calcined from the activated sludge outside secondary sedimentation tank (or settling zone) discharge system in 400-500 DEG C of temperature in sludge system
2-3h, by calcined powder using 1-2% calcium hydroxide solution impregnate 6-7 hour, then 100-120 DEG C at a temperature of do
It is dry, it crushes granulation and is made.
4. lithium battery dry powder fire extinguishing agent as described in claim 1, which is characterized in that the aluminium-hydroxide powder powder moisture is less than
0.05%。
5. lithium battery dry powder fire extinguishing agent as described in claim 1, which is characterized in that the moisture of the activated sludge powder is less than
0.2%。
6. lithium battery dry powder fire extinguishing agent as described in claim 1, which is characterized in that the dry-chemical fire extinguishing mixture further includes living
Property carclazyte, by weight, the atlapulgite be 4-5 parts.
7. a kind of lithium battery for implementing the lithium battery dry powder fire extinguishing agent as described in any one of claim 1 to 6 is put out a fire
Device, which is characterized in that including the first fire extinguisher and the second fire extinguisher, first fire extinguisher assembles dry-chemical fire extinguishing mixture；
Second fire extinguisher includes separate mesh and several are located at the interior capsule flexible filled with nitrogen, the separation on the inside of separate mesh
Net and capsule are fixed on the outside of lithium battery；First fire extinguisher is located at the outside of the second fire extinguisher；The separate mesh is by soft
Property flame-retardant sebific duct braiding be made, the flame-retardant sebific duct be provided with aluminium hydroxide and oxidation calcium compound, the resistance
It fires fire resisting sebific duct and is equipped with micropore, with the aluminium hydroxide and oxidation calcium compound being connected in extraneous and metal tube；The capsule by
The gap of 1-2cm is formed after thermal expansion.
8. lithium battery extinguishing device as claimed in claim 7, which is characterized in that it is 200-220 DEG C that the capsule, which takes fusing point,
Thermoplastic flame-proof elastic material be made.
9. lithium battery extinguishing device as claimed in claim 8, which is characterized in that also have in the thermoplastic flame-proof material rouge
Tricresyl phosphate (2- chloropropyl) ester.
10. lithium battery extinguishing device as claimed in claim 7, which is characterized in that the capsule is flat when not heating
Structure；There is arc fixed plate, bottom has the shape for being tightly attached to lithium battery surface at the top of the capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224137.XA CN109589541B (en) | 2018-10-19 | 2018-10-19 | Lithium battery fire extinguishing agent and lithium battery fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224137.XA CN109589541B (en) | 2018-10-19 | 2018-10-19 | Lithium battery fire extinguishing agent and lithium battery fire extinguishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109589541A true CN109589541A (en) | 2019-04-09 |
| CN109589541B CN109589541B (en) | 2020-08-14 |
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| CN110870963A (en) * | 2019-11-12 | 2020-03-10 | 四川天地同光科技有限责任公司 | Novel fire-fighting material and preparation method thereof |
| CN113209541A (en) * | 2021-05-15 | 2021-08-06 | 江苏阜民新材料有限公司 | Novel lithium battery fire extinguishing agent and preparation method thereof |
| CN113270633A (en) * | 2021-07-21 | 2021-08-17 | 成都特隆美储能技术有限公司 | Manufacturing method of flame-retardant packaging material for square aluminum shell lithium ion battery |
| CN113594607A (en) * | 2021-07-14 | 2021-11-02 | 安徽众兴模具有限公司 | Flame-retardant battery shell |
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