CO_2-O_2混合喷吹炼钢烟尘形成机理的探索性研究  

Exploratory Research of Dust Formation Mechanism During CO_2-O_2 Mixed Injection Steelmaking Process

作　　者：毕秀荣[1] 朱荣[1] 吕明[1] 刘润藻[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《冶金设备》2011年第3期21-24,共4页Metallurgical Equipment

基　　金：国家自然科学基金资助项目(50974013)

摘　　要：以CO2-O2混合喷吹炼钢烟尘为研究对象,利用Fe、Mn蒸汽压的不同,在铁水中添加Fe-Mn合金,以Mn作为示踪元素,通过研究熔池、烟尘中Mn含量和熔池与烟尘中Mn/Fe比,共同探索炼钢烟尘的形成机理。实验结果表明:CO2-O2混合喷吹使得炼钢烟尘中Mn的蒸发量增加且以废钢为原料的炼钢烟尘生成满足蒸发理论,以生铁为原料的炼钢烟尘生成是蒸发理论与气泡理论共同作用的结果。This article using steelmaking dust of CO2-O2 mixed injection process as object of research.By using of difference of Fe、Mn vapor pressure,putting Fe-Mn alloy into hot-metal,taking Mn as tracer element,studying Mn content in molten pool,dust and Mn/Fe in molten pool,dust to explore steelmaking dust formation mechanism jointly.The experimental results show that CO2-O2 mixed injection makes amount of Mn evaporation increase,and those series take scrap for raw materials is evaporation theory,then those series take pig-iron for raw materials is evaporation theory and bubble theory.

关 键 词：炼钢烟尘 示踪元素 蒸发理论 气泡理论 

分 类 号：X757[环境科学与工程—环境工程]