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

fYear

2010

fDate

16-18 April 2010

Firstpage

66

Lastpage

69

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIME.2010.5477695

Filename

5477695