首钢京唐钢铁厂高炉全干式除尘煤气管道内壁防腐工艺技术的研究与应用  

Research and Application in Technology of Process Corrosion Protection in Inner Wall of Fully- dry Dedusting Gas Pipe on Blast Furnace of Shougang Jingtang Iron ＆ Steel Plant

作　　者：于玉良[1] 韩渝京[1] 肖慧敏[1] 

机构地区：[1]北京首钢国际工程技术有限公司动力设计室,北京100043

出　　处：《工程与技术》2010年第1期46-56,共11页

基　　金：国家“十一五”科技支撑计划：新一代可循环钢铁流程工艺技术--长寿集约型冶金煤气干法除尘技术的开发（2006BAE03A10）

摘　　要：高炉煤气采用干式布袋除尘工艺后，其输配系统中的煤气管道内壁出现了严重的腐蚀现象，新建管道3个月可出现因管道腐蚀而穿孔漏气，严重危害工厂的安全运行，为此经过试验手段筛选防腐涂料，并在钢铁厂高炉冶炼现场做了高炉煤气清除氯化物的试验，取得了相应的工艺数据，并将其优化，形成最终高炉煤气氯化物清除工艺技术。通过应用效果看，上述两项单项技术应用于首钢京唐钢铁厂5500m^3高炉煤气管道中，经过半年以上时间运行生产，防腐效果显著。After BFG adopts dry bag type dedusting process, severe corrosion phenomenon appears to inner wall of gas pipeline of the transfer and distribution system. The pipeline newly built within three months can be corroded so that it is perforated for gas leakage. This jeopardizes safety operation of the plant seriously. Therefore corrosion protection paint is selected by means of test method, and test of BFG chloride removal from BFG is carried out at site of BF melting process. Relative process data is collected, and they are optimized and developed finally a technology of BFG chloride removal process. From view of application result, the above two individual techniques are applied to BFG pipeline of 5500m^3 blast furnace of Shougang Jingtang Iron ＆ Steel Plant. The corrosion proof effects are remarkable.

关 键 词：高炉煤气干法除尘 管道内壁腐蚀 防腐涂料试验 氯化物清除 

分 类 号：TF547[冶金工程—钢铁冶金]