Nanofiber heavy-duty anticorrosive composite material and application thereof in wet desulfurization concrete chimney

Abstract

The invention discloses a nanofiber heavy-duty anticorrosive composite material and application thereof in a wet desulfurization concrete chimney. A method comprises the following steps of pretreating the inner wall of the chimney by using an interfacial agent; spraying a first-path viscoelastic material; spraying a second-path viscoelastic material; spraying a third-path viscoelastic material; sticking a first-path glass fiber composite material layer; spraying a fourth-path viscoelastic material; sticking a second-path glass fiber composite material layer; spraying a fifth-path viscoelastic material; sticking a third-path glass fiber composite material layer; spaying a sixth-path viscoelastic material; spraying a seventh-path viscoelastic material; spraying an eighth-path potential regulation material. The nanofiber heavy-duty anticorrosive composite material is strong in rust resistance and corrosion resistance; by imitating the principle of a titanium alloy lining, a glass fiber reinforced plastic metal cylinder is built on the inner wall of the concrete desulfurization chimney, so that the corrosion of acid-containing liquid on the inner wall of the chimney is effectively prevented; the nanofiber heavy-duty anticorrosive composite material has the anticorrosive age limit of at least 20 years; and the cost of the nanofiber heavy-duty anticorrosive composite material is only one third to one fourth of that of a titanium alloy. The nanofiber heavy-duty anticorrosive composite material has the advantages of impact force resistance, wear resistance, labor economization, no toxicity and environment friendliness, and is widely used for the wet desulfurization concrete chimney.

Description

technical field [0001] The invention relates to an application method of a chemical nanocomposite material, in particular to a nanofiber heavy-duty anticorrosion composite material and its application in wet desulfurization concrete chimneys. Background technique [0002] In order to further implement the State Council's "Comprehensive Work Plan for Energy Conservation and Emission Reduction" and "Implementation Plan and Measures for Statistical Monitoring and Assessment of Energy Conservation and Emission Reduction", improve the operation efficiency and management level of coal-fired desulfurization facilities, and ensure the realization of the total amount of sulfur dioxide in the "Eleventh Five-Year Plan" It is particularly important for the adoption of high-efficiency flue gas desulfurization systems to effectively strengthen the supervision of the operation process of coal-fired desulfurization facilities, effectively strengthen the operation, maintenance and management ...

AI Technical Summary

Problems solved by technology

[0008] (3) In order to solve the above problems, the traditional anti-corrosion method has to paste glass flakes on the surface of acid-resistant bricks to prevent acid liquid from entering the gap; but the glass flakes themselves as rigid materials The expansion coefficient of acid-resistant bricks is different from that of acid-resistant bricks. In addition, the adhesion between the two is limited (only about 0.4-1.0 MPa). Anti-corrosion function

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