Method for preparing and sealing anti-corrosion sealing coating for garbage or biofuel boiler
A technology of biofuels and coatings, applied in anti-corrosion coatings, coatings, devices for coating liquids on surfaces, etc.
Inactive Publication Date: 2022-06-10
QINGDA SAISIDI NEW MATERIAL TECH BEIJING
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- Description
- Claims
- Application Information
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Problems solved by technology
Not only the service life cannot be guaranteed, but there may even be potential safety hazards
Method used
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Experimental program
Comparison scheme
Effect test
specific Embodiment 2
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Abstract
Zinc and aluminum metal powder with a high thermal expansion coefficient, silicon oxide and bismuth oxide powder with a low thermal expansion coefficient, a trace amount of antimony oxide serving as a thermal expansion coefficient regulator and phosphorus pentoxide serving as a cosolvent are mixed into a powder material. And silica sol and high-molecular polymer emulsion are used as carriers and are coupled with the mixed powder to prepare the boiler steel sealing coating. The coating is sprayed on the easily corroded part of a garbage or biofuel boiler, and the coating can be self-sintered into a glass phase sealing coating after being dried. The sealing coating can be tightly bonded with boiler steel, the thermal expansion coefficients of the sealing coating and the boiler steel are close in the start-stop temperature difference interval of the boiler, and the sealing coating can obviously improve the corrosion resistance of the sealing part of the boiler.
Description
technical field [0001] It belongs to the field of anti-corrosion materials and boiler anti-corrosion engineering. Background technique [0002] High temperature resistant anti-corrosion coatings, laser or plasma alloy spraying, and self-sintering ceramic coatings are currently commonly used boiler anti-corrosion technologies. Among them, the high temperature resistant anti-corrosion coating has the advantages of convenient construction, but the defects of cracking and falling off are obvious. Laser or plasma alloy spraying has the advantages of no cracking and no falling off, but the defect of difficult construction is obvious. The self-sintering ceramic coating has the advantage of high anti-corrosion ability. However, the temperature difference between the start and stop of the boiler will cause cracks, which will greatly reduce the anti-corrosion ability. For coal-fired boilers or gas-fired boilers, the above-mentioned anti-corrosion technology is basically competent. ...
Claims
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IPC IPC(8): C09D133/04C09D5/10C09D7/61B05D7/14B05D7/22B05D7/24
CPCC09D133/04C09D5/103C09D5/106C09D7/61B05D7/24B05D7/14B05D7/22B05D2202/10C08K2003/0812C08K2003/0893C08K3/08C08K3/36C08K3/22C08K3/2279
Inventor 龚浩然孙荣祥
Owner QINGDA SAISIDI NEW MATERIAL TECH BEIJING