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Flake heavy-duty coating for desulfurizing flues and preparation method thereof

A heavy-duty anti-corrosion and scale technology, applied in the field of coatings, can solve the problems of low temperature resistance and acid corrosion resistance, and achieve the effect of simple construction method, excellent acid corrosion resistance and convenient construction

Inactive Publication Date: 2012-10-10
ZHONGKE CORROSION CONTROL ENG TECH CENT SHENYANG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special flake heavy-duty anti-corrosion coating for desulfurization flue and its preparation method, which solves the problem of low temperature resistance and acid corrosion resistance of traditional glass flake coatings. Application in 200℃ environment

Method used

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  • Flake heavy-duty coating for desulfurizing flues and preparation method thereof
  • Flake heavy-duty coating for desulfurizing flues and preparation method thereof
  • Flake heavy-duty coating for desulfurizing flues and preparation method thereof

Examples

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Embodiment 1

[0049] In this embodiment, the scale heavy-duty anti-corrosion paint specially used for desulfurization flue includes: primer, intermediate paint and top paint, and its specific composition and weight are as follows:

[0050] Flake heavy-duty anti-corrosion coating for desulfurization flue

[0051]

[0052]

Embodiment 2

[0054] In this embodiment, the scale heavy-duty anti-corrosion paint specially used for desulfurization flue includes: primer, intermediate paint and top paint, and its specific composition and weight are as follows:

[0055] Flake heavy-duty anti-corrosion coating for desulfurization flue

[0056]

[0057]

Embodiment 3

[0059] In this embodiment, the scale heavy-duty anti-corrosion paint specially used for desulfurization flue includes: primer, intermediate paint and top paint, and its specific composition and weight are as follows:

[0060] Flake heavy-duty anti-corrosion coating for desulfurization flue

[0061]

[0062]

[0063] The preparation of the present invention is carried out by general preparation process, and preparation process is as follows:

[0064] Preparation process of component A:

[0065] Add epoxy resin and silicone resin into the paint tank first, start the high-speed disperser, the speed of the disperser is 800-1000 rpm, after 10-20 minutes, add pigments, heat-resistant and flame-retardant fillers, fillers, Auxiliaries and solvents, stir evenly, grind on a three-roller machine to a fineness of 60 μm, and discharge. Add glass flakes to the primer, intermediate paint and top paint under stirring conditions to disperse evenly before packaging.

[0066] The preparati...

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Abstract

The invention, relating to the field of coating, concretely discloses a flake heavy-duty coating for desulfurizing flues and a preparation method thereof. The coating is prepared by using organosilicon modified epoxy resin as a main film forming matter and adding pigment, glass flake, temperature-resisting flame-retardant filling material, filling material, auxiliary agent, solvent and curing agent. The coating comprises 75-85wt% of component A and 15-25wt% of component B, wherein the component A comprises 30-50 weight parts of organosilicon modified epoxy resin, 1-10 weight parts of pigment, 10-25 weight parts of glass flake, 2-15 weight parts of temperature-resisting flame-retardant filling material, 2-20 weight parts of filling material, 2-3 weight parts of auxiliary agent, and 3-5 weight parts of solvent. The coating has excellent temperature resistance. flame resistance, and corrosion resistance, good adhesive force and mechanical properties, and is workable at 150-200 DEG C. The coating is suitable for corrosion prevention of desulphurization apparatus, flue, and discharge funnel, and can be used for heavy-duty engineering, such as offshore platform, coast concrete building and petrochemical storage tank, etc.

Description

Technical field: [0001] The invention relates to the field of coatings, in particular to a special scale heavy-duty anti-corrosion coating for desulfurization flue and a preparation method thereof. Background technique: [0002] Since 2000, my country's power plant desulfurization market has developed explosively, basically forming a technical route based on typical wet methods and coexisting with multiple methods. After wet desulfurization, the flue gas has a large moisture content and is corrosive Strong acid has a strong corrosion and damage effect on the flue. This is mainly due to the SO in the flue gas 2 , SO 3 、H 2 S, CO 2 , NOx, HCl and other acid gases, they form H after condensation on the inner wall of the chimney 2 SO 4 、H 2 SO 3 , HCl and other acidic liquids corrode metals, causing serious corrosion to the inner wall of the chimney. After analyzing the purified wet flue gas entering the chimney, the normal working condition of the flue gas temperature i...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D183/00C09D7/12C09D5/08
Inventor 刘宏伟吕澎涛杜治舜许铁群
Owner ZHONGKE CORROSION CONTROL ENG TECH CENT SHENYANG