摘要
闪速熔炼产生的烟尘含有大量腐蚀气体,如果处理不当,会对余热锅炉的换热面产生低温腐蚀。本文从低温腐蚀形成的机理,阐述了产生低温腐蚀的原因,并结合实际工程,分析设计中如何有效防止低温腐蚀、降低SO3发生率,从而提高余热锅炉的使用寿命。
The dust produced from flash smelting contains a great amount of corrosive gas which will generate low-temperature corrosion on heat exchange surface of the waste heat boiler if it is not treated properly.This paper discusses the causes of low- temperature corrosion from the formation mechanism of low-temperature corrosion and makes an analysis on how to effectively prevent the low-temperature corrosion in the design to reduce the occurrence frequency of SO3 for the purpose of increasing the service life of waste heat boiler, based on practices in relevant projects.
出处
《有色冶金设计与研究》
2009年第2期10-12,共3页
Nonferrous Metals Engineering & Research
关键词
闪速炉
余热锅炉
低温腐蚀
腐蚀速度
flash furnace
waste heat boiler
low-temperature corrosion
corrosion rate
