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High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer

A desulfurization device and construction method technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of unsatisfactory anti-corrosion treatment and environmental protection, and achieve the reduction of linear expansion coefficient and curing shrinkage rate, impact resistance Excellent performance and abrasion resistance, strong corrosion resistance

Inactive Publication Date: 2010-09-08
中建五局第三建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some current anti-corrosion measures can control the occurrence of corrosion to a certain extent, due to reasons such as anti-corrosion materials and anti-corrosion construction methods, the anti-corrosion treatment after desulfurization is not very ideal and environmentally friendly.

Method used

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  • High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer
  • High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer

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Embodiment Construction

[0066] The present invention will be further described below in combination with specific embodiments.

[0067] Take Datang Huayin Loudi Jinzhushan Power Plant desulfurization project construction as an example.

[0068] 1. Project overview

[0069] The desulfurization project of Datang Huayin Loudi Jinzhushan Power Plant is located in Lengshuijiang City, Hunan Province. It is invested and constructed by Datang Huayin Jinzhushan Power Plant.

[0070] Construction Operation Points

[0071] (1), preparatory work

[0072] A. Manufacture requirements for equipment scale resin anti-corrosion engineering substrate

[0073] All welds in the anti-corrosion area must be continuous full welds. If there are only outer welds in the joints, inner welds must be supplemented. All welds shall be well-formed and free of defects, and all welds shall be smoothed with a grinder. There should be no welding bumps and welding slag on the surface of the substrate to be lined.

[0074] B. Constr...

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PUM

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Abstract

The invention discloses a high-temperature scale anticorrosion construction method for a heat-engine plant desulfurizer, comprising following steps of basic treatment, undercoat painting, a primary scale daub coating, a secondary scale daub coating, polishing smoothly, local part enhancement, wear-resisting mortar coating, top coat painting and final inspection. The anticorrosion construction method has the advantages of strong anticorrosion capability, stable adherence, no easy fall, strong adhesion of a glass scale liner, small contraction after solidification, long service life of the liner, better shock resistance and anticorrosion performance than other materials, easy repair of local damage, room-temperature (or low-temperature heating) solidification and convenient construction.

Description

technical field [0001] The invention relates to an anti-corrosion construction method for a desulfurization device in a thermal power plant, in particular to an anti-corrosion construction method for spraying an anti-corrosion paint on a high-temperature scale resin lining of a desulfurization device in a thermal power plant. Background technique [0002] Traditional flue gas desulfurization projects will form a humid microenvironment locally, which will cause certain chemical and physical corrosion to the inner wall of the metal. Although some current anti-corrosion measures can control the occurrence of corrosion to a certain extent, due to reasons such as anti-corrosion materials and anti-corrosion construction methods, the anti-corrosion treatment after desulfurization is not very ideal and environmentally friendly. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a glass flake lining with strong corrosion res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/48
Inventor 戴才堂李锋熊政华李英玉吴立忠
Owner 中建五局第三建设有限公司
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