CN107686718A - Phase transformation anti-icing fluid - Google Patents
Phase transformation anti-icing fluid Download PDFInfo
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- CN107686718A CN107686718A CN201710808901.7A CN201710808901A CN107686718A CN 107686718 A CN107686718 A CN 107686718A CN 201710808901 A CN201710808901 A CN 201710808901A CN 107686718 A CN107686718 A CN 107686718A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
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Abstract
The invention discloses a kind of phase transformation anti-icing fluid, is made up of the water mixing preparation of 20~68% white oils, 8~16% nonionic emulsifiers, 0.1~0.5% IBDU and surplus.Freezing point≤0 DEG C of phase transformation anti-icing fluid of the present invention, viscosity (20 DEG C) >=1mPas, pH value 6.5~10.0, it is sprayed in compartment wall side and coal, solid-state can be frozen into lower temperature, separation layer is formed between compartment wall and coal body, solves the problems, such as the jelly car during high-moisture Coal Transport.
Description
Technical field
The invention belongs to anti-icing fluid technical field, is related to bulk granular thing railway transportation anti-icing fluid, more particularly to one
Kind is suitable for the anti-icing fluid that high moisture content coal uses in railway transportation.
Background technology
Contain certain moisture in the bulk granular thing such as coal and miberal powder, washed especially for Coal Quality is improved
The clean fine coal of choosing processing, water content are higher.These loose unpacked materials in the winter time railway transportation when easily freeze in compartment, give
Winter railway transportation and unload and bring extreme difficulties, turnover and the conevying efficiency of vehicle are not only had a strong impact on, also to railway, coal
Ore deposit, harbour and coal consumers cause huge economic loss.
Generally solved the above problems at present in railway transportation using the method to sprinkling anti-icing fluid on material.Ministry of Railways's root
It is actual according to transport, propose and implemented Ministry of Railways professional standard TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid
Technical conditions》, wherein main performance index provide：Freezing point≤- 46 DEG C, 2~9mPas of viscosity.
But influenceed by progress of coal mining and coal washing process, the moisture in coal is mostly 8~20%, very
To higher, especially it is dehydrated during coal washing not thoroughly, clean fine coal water content is often both greater than 22%, and some can even reach
To 26~28%, the diluting effect to anti-icing fluid is objectively formd, the freezing point of anti-icing fluid is not reached in actual application
≤ -46 DEG C of index request, viscous side, jelly car phenomenon often have generation.Further, since train high-speed cruising, speed and wind direction cause
Temperature and humidity has different degrees of reduction in compartment wall and compartment, and -46 DEG C of freezing point index can not meet that transport will
The main reason for asking, and causing to freeze car.
Existing anti-icing fluid is mostly inorganic salt solution, and viscosity is generally 4~5mPas, although meeting TB/T 3208-
2~9mPas of viscosity index request in 2008, but due to anti-icing fluid fluid properties in itself and in by coal contained humidity it is dilute
Effect is released, the anti-icing fluid being sprayed in compartment wall is easily lost in car bottom, it is impossible to remain in compartment wall side.This is to cause to glue
Side, another main cause for freezing car.
Although each Railway Bureau requires the viscosity index of anti-icing fluid bringing up to 6~9mPas in recent years, due to some understanding
On mistaken ideas, the limitation of TB/T 3208-2008 standards requirement, and the influence in price, the anti-icing fluid of each manufacturer is all the time
9mPas viscosity limitation dare not be broken through, along with enough the reasons such as anti-icing fluid can not be sprayed, causes to have when freezing car phenomenon every year
Occur.
CN 103242804A disclose a kind of wall built-up anti-icing fluid, by 0.1~2% high molecular weight water soluble polymer, 35~60%
Has the water of the inorganic salts of low freezing point characteristic, 1~5% preservative, the water-soluble organic matter of 5~20% tool low freezing point characteristics and surplus
Mixture is made, and high molecular weight water soluble polymer therein is soluble cellulose derivative, soluble starch derivative, polyethylene
One or more of compounds in alcohol, Sodium Polyacrylate, polyacrylamide.Its product freezing point≤- 56 DEG C, viscosity (20 DEG C) 8
~18mPas, it is all remarkably higher than TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》Index will
Ask.
But find in use, although the antifreeze liquid energy of the wall built-up significantly improves viscous side and freezes car phenomenon, water therein
Soluble macromolecular polymer is when running into metal ion in the presence of the phenomenon that generation soft precipitation and salt tolerance are low, and only viscosity does not reduce
Tendency, and caused soft precipitation easily causes shower nozzle plug-hole during sprinkling, causes anti-icing fluid spray uneven, or even spray
Not phenomenon out.
Therefore, it is to solve loose unpacked material railway using freezing point is sufficiently low, viscosity is higher and is easy to the anti-icing fluid of spraying operation
Freeze car, a kind of approach of viscous side technical barrier, but not unique channel in transport.Using the Transformation Principle of some materials, by it
It is configured to aqueous emulsion to be sprayed in railway carriage, it is solidified in lower temperature, one is formed between loose unpacked material and compartment
Layer separation layer, it equally can solve the problem that jelly car, viscous side technical barrier in railway transportation.
But after phase-change material is configured into aqueous emulsion, its freezing point can significantly improve, it is possible in the case where spraying environment just
Solidify, spraying operation can not be completed.Therefore, it is necessary to the freezing point of phase-change material aqueous emulsion is reduced so as to fit in work
Used for anti-icing fluid.
The content of the invention
It is an object of the invention to provide a kind of phase transformation anti-icing fluid, phase transformation anti-icing fluid of the invention can coagulate in lower temperature
Gu into solid-state, separation layer is formed between compartment wall and coal body, solves the problems, such as the jelly car during high-moisture Coal Transport.
The phase transformation anti-icing fluid of the present invention is to be configured to breast by the emulsification of emulsifying agent as primary raw material using white oil
Change liquid, be sprayed in compartment wall side and coal, be changed into the characteristic of wax-like (oily) to the cold using white oil, adhere to the white oil of solidification
In on railway carriage, aqueous coal is isolated with compartment wall, so as to play prevent in compartment wall sticky coal cause to freeze car, unload it is not thorough
The effect at bottom.
Specifically, phase transformation anti-icing fluid of the present invention is made of the component mixing preparation of following mass percents：
White oil 20~68%
Nonionic emulsifier 6~16%
IBDU 0.1~0.5%
Water surplus.
Wherein, described white oil is also known as paraffin oil, mineral oil, is the mixture of the refining liquid hydrocarbon obtained by oil, mainly
The mixture of cycloalkane and alkane for saturation.
In the present invention, described nonionic emulsifier is sorbitan monooleate Span-80 and anhydrous sorbitol list
Oleic acid ester APEO Tween-80 compound.
Preferably, the nonionic emulsifier is that Span-80 and Tween-80 compounds to obtain according to 1: 4~5 mass ratio
Compound.
The a small amount of IBDU added in the present invention uses as pour-point depressant.The addition of IBDU can be with
According to the difference of environment temperature, adjusted between 0.1~0.5%.
The present invention adds minimal amount of pour-point depressant in phase transformation anti-icing fluid, on the one hand effectively reduces phase transformation anti-icing fluid
Freezing point, down to less than 0 DEG C, improve phase transformation anti-icing fluid and produce solidification in production environment more than 0 DEG C, work can not be sprayed
The problem of industry, make just solidify in its extreme environment only below 0 DEG C.On the other hand, the addition of a small amount of pour-point depressant,
Influence of the water content higher in transported material for phase transformation anti-icing fluid freezing point can also be eliminated, prevents higher moisture content from changing
The freezing point of phase transformation anti-icing fluid, influences antifreezing effect.
Further, the present invention can also add preservative sodium benzoate, the preservative in the phase transformation anti-icing fluid
Addition be phase transformation anti-icing fluid gross mass 0.5~1.5%.
Closer, the present invention also adds a certain amount of antirust agent in phase transformation anti-icing fluid.The antirust agent is three
Monoethanolamine oleate soap, petroleum sodium sulfonate or zinc naphthenate, its addition are the 5~20% of phase transformation anti-icing fluid gross mass.
The addition of preservative and antirust agent, it is also possible to prevent destruction of the high-moisture material to compartment.
Phase transformation anti-icing fluid of the present invention can be prepared by the following method.
White oil, antirust agent are mixed with water, 80~90 DEG C is heated to, is uniformly mixed, is cooled to 60~65 DEG C, is added
Preservative stirs, and adds nonionic emulsifier and IBDU, stirs, and it is antifreeze that standing cooling obtains phase transformation
Liquid.
Phase transformation anti-icing fluid the key technical indexes prepared by the present invention is：Freezing point≤0 DEG C；Viscosity (20 DEG C) >=1mPas；
PH value 6.5~10.0；Other indexs meet Ministry of Railways professional standard TB/T 3208-2008《Bulk granular cargo transport is with antifreeze
Liquid technical conditions》It is required that.After the phase transformation anti-icing fluid for preparing of the present invention is diluted with water into 10 times, 720h are stood at 35 DEG C, no layering,
It is stable without bleed, phase transformation anti-icing fluid emulsifiability.
The phase transformation anti-icing fluid of the present invention can use common railway transport antifreezing fluid spraying device to be sprayed, and phase transformation is prevented
After freezing 10~20 times of liquid dilution, even application is generally 0.02~0.03Kg/m in compartment wall, quantity for spray2, according to spraying
When temperature and humidity suitably adjusted, to reach economic purpose.
In addition, work as moisture in coal content >=22%, during environment temperature≤- 20 DEG C, phase transformation anti-icing fluid is sprayed in compartment
Under the premise of, the common anti-icing fluid of 1.0~1.5kg/ ton coals can also be sprayed in coal, to prevent high-moisture coal in compartment
Inside it is frozen into an entirety, it is difficult to discharging.
Phase transformation anti-icing fluid provided by the invention efficiently solves unit train and only sprayed commonly in shipment high-moisture coal
Anti-icing fluid, to port after still suffer from that side board is viscous to be frozen coal, freeze the problem of car is difficult to unload, phase transformation anti-icing fluid solidifies the separation layer energy to be formed
Effectively high-moisture coal is spaced apart with compartment wall, is easy to unload, the loss of coal after not only reducing to port, has saved fortune
Coal cost, and improve train turnover rate.
Phase transformation anti-icing fluid prepared by the present invention is nontoxic, tasteless, meets environmental requirement, low production cost, and pH value is fitted
In, it is small to compartment wall corrosivity.
Embodiment
Following embodiments are only the preferred technical solution of the present invention, are not used to carry out any restrictions to the present invention.For
For those skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements etc., should be included in the scope of the protection.
Embodiment 1.
42g white oils are weighed, 130g water is added in there-necked flask, is heated to 80 DEG C, stirring 15min is sufficiently mixed；It is cooled to 65
DEG C, 3g sodium benzoates are added, stir 40min；26g T-80 and 6g S-80,0.3g IBDU are added, stirs 40min,
Cooling and standings, obtain phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 1.002g/cm3；Viscosity (20 DEG C) 2.2mPa
s；PH value 6.61；- 2 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry
Standard TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 10 times, with 0.025Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
In compartment four, wall forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
To after port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Embodiment 2.
85g white oils are weighed, 10g petroleum sodium sulfonates, 20g water, are added in there-necked flask, are heated to 80 DEG C, stirring 15min is abundant
Mixing；65 DEG C are cooled to, adds 0.75g sodium benzoates stirring 40min；Add 8g T-80 and 2g S-80,0.3g isobutyl fork
Two ureas, 40min is stirred, cooling and standings, obtains phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 1.01g/cm3；Viscosity (20 DEG C) 2.2mPas；
PH value 9.64；- 10 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry mark
Quasi- TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 12 times, with 0.025Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
In compartment four, wall forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
To after port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Embodiment 3.
85g white oils are weighed, 10g triethanolamine oleates, 20g water, are added in there-necked flask, are heated to 80 DEG C, stir 15min
It is sufficiently mixed；65 DEG C are cooled to, adds 0.75g sodium benzoates stirring 40min；It is different to add 8g T-80 and 2g S-80,0.5g
Fourth pitches two ureas, stirs 40min, cooling and standings, obtains phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 0.995g/cm3；Viscosity (20 DEG C) 1.3mPa
s；PH value 8.76；- 20 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry
Standard TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 12 times, with 0.02Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
The wall of compartment four forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
Behind port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Embodiment 4.
85g white oils, 10g triethanolamine oleates are weighed, 20g water is added in there-necked flask, is heated to 80 DEG C, stirs 15min
It is sufficiently mixed；65 DEG C are cooled to, adds 0.75g sodium benzoates stirring 40min；It is different to add 8g T-80 and 2g S-80,0.2g
Fourth pitches two ureas, stirs 40min, cooling and standings, obtains phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 0.991g/cm3；Viscosity (20 DEG C) 1.3mPa
s；PH value 8.96；- 8 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry
Standard TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 12 times, with 0.019Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
In compartment four, wall forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
To after port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Embodiment 5.
40g white oils, 10g zinc naphthenates are weighed, 12g water is added in there-necked flask, is heated to 80 DEG C, stirring 15min fills it
Divide mixing；65 DEG C are cooled to, adds 0.75g sodium benzoates, stirs 40min；Add 8g T-80 and 2g S-80,0.3g isobutyl
Two ureas are pitched, 40min is stirred, cooling and standings, obtains phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 1.00g/cm3；Viscosity (20 DEG C) 2.8mPas；
PH value 9.47；- 18 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry mark
Quasi- TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 20 times, with 0.025Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
In compartment four, wall forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
To after port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Embodiment 6.
85g white oils, 10g triethanolamine oleates are weighed, 20g water is added in there-necked flask, is heated to 90 DEG C, stirs 15min
It is sufficiently mixed；65 DEG C are cooled to, adds 0.75g sodium benzoates stirring 40min；It is different to add 8g T-80 and 2g S-80,0.4g
Fourth pitches two ureas, stirs 40min, cooling and standings, obtains phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 0.995g/cm3；Viscosity (20 DEG C) 2.5mPa
s；PH value 9.10；- 18 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry
Standard TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 12 times, with 0.02Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
The wall of compartment four forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
Behind port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Embodiment 7.
85g white oils are weighed, 10g petroleum sodium sulfonates, 20g water, are added in there-necked flask, are heated to 80 DEG C, stirring 15min is abundant
Mixing；65 DEG C are cooled to, adds 0.75g sodium benzoates stirring 40min；Add 8g T-80 and 2g S-80,0.4g isobutyl fork
Two ureas, 40min is stirred, cooling and standings, obtains phase transformation anti-icing fluid.
The key technical indexes of the antifreeze liquid product of phase transformation：Density (20 DEG C) 0.997g/cm3；Viscosity (20 DEG C) 2.2mPa
s；PH value 9.32；- 18 DEG C of freezing point；10 times are diluted with water, 35 DEG C of standing 720h are not stratified；Other indexs meet Ministry of Railways's industry
Standard TB/T 3208-2008《Bulk granular cargo transport anti-icing fluid technical conditions》It is required that.
Above-mentioned phase transformation anti-icing fluid is diluted with water 12 times, with 0.02Kg/m2Dosage be sprayed on railway carriage wall and car bottom,
The wall of compartment four forms coating of wax shape film.The clean fine coal of moisture 22% is loaded in compartment, is transported under -20 DEG C of environment temperatures
Behind port, coal, without viscous nation, is easily unloaded without bottom is frozen.
When moisture content of coal >=22%, while above-mentioned dosage phase transformation anti-icing fluid is sprayed, 1.0~1.5Kg/ is sprayed into coal
The common anti-icing fluid of ton coal, coal equally without bottom is frozen, without viscous nation, are easily unloaded.
Claims (10)
1. a kind of phase transformation anti-icing fluid, it is made up of the component mixing preparation of following mass percents：
White oil 20~68%
Nonionic emulsifier 6~16%
IBDU 0.1~0.5%
Water surplus.
2. phase transformation anti-icing fluid according to claim 1, it is characterized in that the nonionic emulsifier is anhydrous sorbitol list oil
The compound of acid esters and sorbitan monooleate APEO.
3. phase transformation anti-icing fluid according to claim 2, it is characterized in that the sorbitan monooleate and Sorbitan
The mass ratio of alcohol monoleate APEO is 1: 4~5.
4. phase transformation anti-icing fluid according to claim 1, it is characterized in that preservative has been additionally added in the phase transformation anti-icing fluid,
The addition of the preservative is the 0.5~1.5% of phase transformation anti-icing fluid gross mass.
5. phase transformation anti-icing fluid according to claim 4, it is characterized in that being sodium benzoate in described preservative.
6. phase transformation anti-icing fluid according to claim 1, prevent it is characterized in that being additionally added phase transformation in the phase transformation anti-icing fluid
Freeze the antirust agent of liquid gross mass 5~20%.
7. phase transformation anti-icing fluid according to claim 6, it is characterized in that the antirust agent is trihydroxy ethylamine oleate soap, mahogany acid
Sodium or zinc naphthenate.
8. a kind of preparation method of phase transformation anti-icing fluid, is to mix white oil, antirust agent with water, 80~90 DEG C are heated to, stirring is mixed
Close uniformly, be cooled to 60~65 DEG C, add preservative and stir, add nonionic emulsifier and IBDU stirring is equal
It is even, stand cooling and obtain phase transformation anti-icing fluid.
9. phase transformation anti-icing fluid according to claim 1, it is characterized in that phase transformation anti-icing fluid is diluted into 10~20 times, it is sprayed on car
In railway carriage or compartment.
10. phase transformation anti-icing fluid according to claim 9, it is characterized in that the quantity for spray is 0.02~0.03Kg/m2。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370522A (en) * | 2018-12-12 | 2019-02-22 | 神木市锦界安顺煤矿机电修造有限公司 | Railway transportation coal phase transformation anti-icing fluid |
| CN111748325A (en) * | 2020-07-27 | 2020-10-09 | 陈守东 | Coal transport carriage separant and preparation method thereof |
| CN112063369A (en) * | 2020-06-12 | 2020-12-11 | 神木市锦界安顺煤矿机电修造有限公司 | Method for preventing mutual freezing of inner wall of coal car and coal |
| CN112063368A (en) * | 2020-06-12 | 2020-12-11 | 神木市锦界安顺煤矿机电修造有限公司 | Method for producing isolating antifreezing solution for railway coal transportation |
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| CN101984030A (en) * | 2010-11-10 | 2011-03-09 | 南通海迅天恒纳米科技有限公司 | Novel anti-freezing solution for bearings |
| CN105062420A (en) * | 2015-08-13 | 2015-11-18 | 宁夏北极星化工有限公司 | Isolating anti-freezing liquid for freight train body |
| CN106398528A (en) * | 2016-08-31 | 2017-02-15 | 北京精诚博桑科技有限公司 | Ultralow temperature nano antifreezing isolating emulsion, and preparation method thereof |
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| CN109370522A (en) * | 2018-12-12 | 2019-02-22 | 神木市锦界安顺煤矿机电修造有限公司 | Railway transportation coal phase transformation anti-icing fluid |
| CN112063369A (en) * | 2020-06-12 | 2020-12-11 | 神木市锦界安顺煤矿机电修造有限公司 | Method for preventing mutual freezing of inner wall of coal car and coal |
| CN112063368A (en) * | 2020-06-12 | 2020-12-11 | 神木市锦界安顺煤矿机电修造有限公司 | Method for producing isolating antifreezing solution for railway coal transportation |
| CN111748325A (en) * | 2020-07-27 | 2020-10-09 | 陈守东 | Coal transport carriage separant and preparation method thereof |
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