CN107641342B - Heat-absorbing anticorrosion energy-saving coating and preparation method and use method thereof - Google Patents
Heat-absorbing anticorrosion energy-saving coating and preparation method and use method thereof Download PDFInfo
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- CN107641342B CN107641342B CN201710763359.8A CN201710763359A CN107641342B CN 107641342 B CN107641342 B CN 107641342B CN 201710763359 A CN201710763359 A CN 201710763359A CN 107641342 B CN107641342 B CN 107641342B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The invention relates to a coating, in particular to a heat-absorbing anticorrosion energy-saving coating and a preparation method and a using method thereof, wherein the heat-absorbing anticorrosion energy-saving coating comprises, by weight, 10-30 parts of boron nitride, 20-40 parts of carborundum, 20-40 parts of brown corundum, 10-20 parts of talcum powder, 5-10 parts of graphene, 10-30 parts of iron oxide red, 10-30 parts of iron oxide black and a water glass solvent; the preparation method comprises the steps of putting the materials into a container according to the proportion, uniformly stirring, gradually and slowly adding three times of water glass solvent, and stirring while adding water glass, wherein the stirring time is 4-6 minutes; the using method comprises the steps of cleaning the coated surface, and brushing or spraying the coating with the thickness of 0.1-0.3 mm. The invention has good heat absorption effect and strong anti-corrosion function, can prolong the service life of the boiler and is beneficial to heat energy conduction.
Description
Technical Field
The invention relates to a coating, in particular to a heat-absorbing anticorrosion energy-saving coating, and a preparation method and a use method thereof.
Background
In the application of various industrial boilers, oil field heating furnaces, central heating furnaces, power generation boilers and heat treatment and drying equipment, the heat efficiency of the boilers is improved mainly depending on specific fuels and single quantity, and combustible organic components in the fuels cannot be completely and fully combusted and converted into heat energy by secondary combustion due to different fuel components, heat value changes and different operation modes, so that the heat efficiency of the boilers is reduced, and the fuel and operation cost indexes cannot be effectively controlled and improved. Greatly influencing the economic benefit and social benefit of enterprises. Therefore, the invention of the energy-saving environment-friendly heat-absorbing anticorrosion energy-saving coating is very important.
Disclosure of Invention
The invention makes up and improves the defects of the prior art, provides the heat-absorbing anti-corrosion energy-saving coating which has good heat-absorbing effect and strong anti-corrosion function, can prolong the service life of the boiler and is beneficial to heat energy conduction, and is easy to popularize and use on a large scale.
The technical scheme adopted by the invention is as follows: the heat-absorbing anticorrosive energy-saving coating comprises, by weight, 10-30 parts of boron nitride, 20-40 parts of carborundum, 20-40 parts of brown corundum, 10-20 parts of talcum powder, 5-10 parts of graphene, 10-30 parts of iron oxide red, 10-30 parts of iron oxide black and a water glass solvent.
A preparation method of a heat-absorbing anticorrosive energy-saving coating comprises the steps of putting boron nitride, carborundum, brown corundum, talcum powder, graphene, iron oxide red and iron oxide black in a container according to a ratio, uniformly stirring, gradually and slowly adding three times of a water glass solvent, stirring while adding water glass for 4-6 minutes, and uniformly stirring and mixing to obtain the heat-absorbing anticorrosive energy-saving coating.
A using method of a heat-absorbing anticorrosion energy-saving coating comprises the steps of cleaning a coated surface, brushing or spraying the heat-absorbing anticorrosion energy-saving coating, wherein the thickness of the brushed or sprayed coating is 0.1-0.3 mm
The invention has the beneficial effects that: the heat absorption effect is good, the anti-corrosion function is strong, the service life of the boiler can be prolonged, heat conduction is facilitated, and large-scale popularization and use are easy. The main advantages are as follows:
1. the heat absorption function is that in various boilers, combustion substances output heat through conduction, convection and radiation, wherein the conduction and the convection need to be conducted through media in a certain state, while the heat radiation is a main heat transmission mode, and the heat absorption rate of the rear heat surface is enhanced and the heat absorption, corrosion prevention and energy saving coating is coated on the radiation rear heat surface of the boiler, so that the heat absorption rate is repeatedly absorbed and converted into heat energy for transmission. Thereby effectively increasing heat absorption, improving the heat absorption rate of the heating surface in the boiler, rapidly increasing the water temperature and achieving the purpose of energy conservation.
2. The coating has the advantages that the coating has an anticorrosion protection function, shows the corrosion of neutral physical and chemical properties, is stable in acid and alkali resistance and corrosive substances in a solid state, is coated on a water wall tube of a boiler to play a role in protection, can effectively prolong the service life of the boiler, prolongs the overhaul life of the boiler to 3-5 years, and achieves the purpose of saving the operation cost.
3. The coating is coated on the outer side of the pipe wall, so that heat energy is quickly transferred into the pipe, water is quickly heated, the oscillation frequency of water molecules is increased, calcium and magnesium ions in water are not easy to deposit on the pipe wall, and heat energy conduction is facilitated.
The specific implementation mode is as follows:
the heat-absorbing anticorrosive energy-saving coating comprises, by weight, 21 parts of boron nitride, 29 parts of carborundum, 31 parts of brown corundum, 15 parts of talcum powder, 8 parts of graphene, 22 parts of iron oxide red, 23 parts of iron oxide black and a water glass solvent; the materials are placed in a container according to the proportion and are uniformly stirred, three times of water glass solvent is gradually and slowly added, the water glass is added and stirred at the same time, the stirring time is 5 minutes, and the heat-absorbing anticorrosive energy-saving coating is obtained after uniform stirring and mixing; under the condition of drying, rust and dirt on the painting part are removed by an angle grinder, the environment is kept dry, the prepared heat-absorbing anti-corrosion energy-saving paint is painted or sprayed on the surface of an object, the thickness is 2 mm, the paint is dried or naturally dried, the drying environment and the surface of a coating layer are not wet before the paint is dried, and the paint is not wet after being dried and cured. The coating is mainly applied to coal-fired boilers, gas-fired boilers, biomass fuel boilers, power plant boilers, industrial boilers, civil boilers, electric furnaces and the like.
The performance indexes of the heat-absorbing anticorrosive energy-saving coating are shown in the following table:
main technical index table for heat-absorbing anticorrosion energy-saving paint
| pH value | The pH value is 11 and is alkaline when the liquid is in a liquid state; the pH value is 7 in solid state, and the product is neutral |
| Density of | 3.98g/cm3 |
| Coefficient of thermal conductivity | λ =0.98w/(m.k) |
| High temperature resistance | 1500℃ |
| Physical and chemical influence on boiler | Without any influence |
| Energy saving rate | 8~15％ |
| Decay period | 30% for 6 months at 1000 ℃ and 80% for 12 months |
| Acid and alkali resistance | Stable physical and chemical properties, and strong acid and alkali resistance |
Claims (1)
1. A heat-absorbing anticorrosion energy-saving coating is characterized in that: the composite material comprises, by weight, 10-30 parts of boron nitride, 20-40 parts of carborundum, 20-40 parts of brown corundum, 10-20 parts of talcum powder, 5-10 parts of graphene, 10-30 parts of iron oxide red, 10-30 parts of iron oxide black and a water glass solvent, wherein the weight of the water glass solvent is 3 times of the sum of the weights of all the components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763359.8A CN107641342B (en) | 2017-08-30 | 2017-08-30 | Heat-absorbing anticorrosion energy-saving coating and preparation method and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710763359.8A CN107641342B (en) | 2017-08-30 | 2017-08-30 | Heat-absorbing anticorrosion energy-saving coating and preparation method and use method thereof |
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| Publication Number | Publication Date |
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| CN107641342A CN107641342A (en) | 2018-01-30 |
| CN107641342B true CN107641342B (en) | 2020-05-08 |
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| CN201710763359.8A Active CN107641342B (en) | 2017-08-30 | 2017-08-30 | Heat-absorbing anticorrosion energy-saving coating and preparation method and use method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108031635A (en) * | 2017-12-23 | 2018-05-15 | 安徽国电能源设备工程有限公司 | A kind of protective coating preparation method of energy storage type electric boiler heating element |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101280076B1 (en) * | 2011-06-20 | 2013-07-05 | 이재환 | High density nano coating compositions |
| CN102775164B (en) * | 2012-07-30 | 2015-04-01 | 北京中电联发科技有限公司 | Energy-saving modified coating and preparation method for boiler water cooled wall |
| CN103087558B (en) * | 2012-12-21 | 2016-04-20 | 山西潞安环保能源开发股份有限公司 | Boiler back end ductwork heat-insulating anti-corrosive coating and preparation method thereof and coating composition |
| CN104629499A (en) * | 2013-11-13 | 2015-05-20 | 桂国喜 | Far-infrared high-radiation preservation energy-saving paint |
| KR101405322B1 (en) * | 2014-02-28 | 2014-06-11 | 부림산업개발(주) | Inorganic ceramic paint for curing at room temperature and painting method using the same |
| CN106609051A (en) * | 2015-10-26 | 2017-05-03 | 天津市新丽华色材有限责任公司 | Anti-corrosion thermal conductive coating |
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