Abstract
Waste incineration power generation technology is the main trend in the treatment of urban solid waste. The thermal corrosion protection of boiler water-cooled walls and superheater tube walls is a key issue that restricts the stable operation of garbage incinerators. This article outlines typical surface protection technologies in the field of boiler high-temperature corrosion protection, including hardfacing, thermal spraying, remelting, etc. In addition, the characteristics of these anti-corrosion technologies were evaluated, and their application prospects were prospected. Hardfacing is widely used, but it is also facing the challenge of other methods; among the commonly used thermal spraying technologies, supersonic flame spraying is a more reliable technical solution; in laser remelting, high frequency induction remelting, flame remelting Among various remelting technologies such as melting and integral heating remelting, high-frequency induction remelting has shown great development potential.
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