Corrosion control system for reinforced concrete single-cylinder chimney after wet desulfurization and manufacturing method of corrosion control system

Abstract

The invention discloses a corrosion control system for a reinforced concrete single-cylinder chimney after wet desulfurization and a manufacturing method of the corrosion control system. The corrosion control system sequentially comprises a chimney cylinder body reinforced concrete wall layer (1), a heat preservation and insulation layer (2) and an acid-proof brick liner layer (3) from outside to inside and also comprises a quick-drying mortar repairing layer (4) coated on the inner wall of the acid-proof brick liner layer (3), a base coating layer (5) coated on the inner wall of the quick-drying mortar repairing layer (4), an anticorrosion adhesive layer (6) coated on the inner wall of the base coating layer (5) and a light anticorrosion vitrified tile (7) coated on the inner wall of the anticorrosion adhesive layer (6). With the adoption of the corrosion control system, the performance of resisting hydrofluoric acid corrosion is strengthened, the disadvantage of the traditional domestic similar chimney anticorrosion material of intolerance in hydrofluoric acid corrosion is effectively overcome, and the cost is lower than that of a foreign similar product; and meanwhile, the elasticity of the anticorrosion adhesive layer deforms along with changes of temperature, and thus damages caused by the stress to the corrosion control system are avoided.

Description

technical field [0001] The invention relates to the field of anticorrosion of chimneys, in particular to an anticorrosion system and a manufacturing method of a reinforced concrete single-tube chimney after wet desulfurization. Background technique [0002] The chimney structures of early power plants in my country are all single-tube reinforced concrete chimneys. The general design method of single-tube reinforced concrete chimneys is: the acid-resistant inner lining of acid-resistant cement masonry and the insulation layer of water glass expanded perlite board are closely attached to the reinforced concrete wall. And it is supported in sections by a ring-shaped cantilever protruding from the reinforced concrete wall, and the inner surface of the concrete is treated with anti-corrosion. The structural integrity of the chimney lining and insulation layer of this structural type is relatively poor, and the smoke can easily penetrate into the inner surface of the cylinder wall ...

AI Technical Summary

Problems solved by technology

There are also designers who add different coatings to the interior, but all of them have problems of weak strength, poor moisture-proof and thermal insulation effect, poor acid resistance (mainly hydrofluoric acid HF) corrosion and resistance to temperature changes.

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