Title :
Design and study of polyureas anticorrosion coating in desulfurization flue
Author :
Zongyu, Liu ; Wei, Song
Author_Institution :
Sch. of Environ. Sci. & Safety Eng., Tianjin Univ. of Technol., Tianjin, China
Abstract :
Anticorrosion coating in desulphurization flue of one wet flue gas desulfurization equipment (FGD) (product model: DTTW-III-150) was designed and studied according to corrosive environment and technical parameters of a coal-fired power plant. And relevant design requirements were confirmed. Application results showed that polyureas can be used to anticorrosion in flue desulfurization equipment for anticorrosion because of their wear and high temperature physical properties. When the construction thickness was 2.0 mm, the high-temperature polyureas protective coating appearance smooth, EDM(electric discharge machining) 100% pass rate, adhesion 10.8 MPa, at 180 °C environment still had outstanding performance, that make sure it could reach its design life of the flue based on estimating the corrosion margin.
Keywords :
adhesion; corrosion protective coatings; electrical discharge machining; flue gas desulphurisation; steam power stations; wear; EDM; adhesion; anticorrosion coating; coal-fired power plant; corrosives; electric discharge machining; flue gas desulfurization equipment; polyureas; pressure 10.8 MPa; protective coating; temperature 180 degC; wear; Adhesives; Chemical technology; Coatings; Flue gases; Power generation; Rough surfaces; Spraying; Surface roughness; Surface treatment; Temperature; chain extenders; coating; gel time; polyureas;
Conference_Titel :
Information Management and Engineering (ICIME), 2010 The 2nd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5263-7
Electronic_ISBN :
978-1-4244-5265-1
DOI :
10.1109/ICIME.2010.5477695
