BL法竖炉还原过程中球团内碳与硫元素含量的变化  

Change of Carbon and Sulfur Contents in the Pellets During Direct Reduction in BL Shaft Furnace

作　　者：李永全[1] 陈宏[1] 李咸伟[1] 周渝生 甘青松 

机构地区：[1]宝钢研究院

出　　处：《宝钢技术》2000年第5期21-24,51,共5页Baosteel Technology

摘　　要：研究了球团矿在BL法竖炉还原过程中碳、硫元素的变化趋势 ,竖炉还原带整个温区内气相的碳势高于炉料的碳势 ,炉料处于渗碳过程中 ,球团的碳含量随竖炉料线的下移而增加 ;球团在还原过程中硫含量基本不变 ,海绵铁中的硫基本上源于矿石。Change of carbon and sulfur contents in pellets in BL direct reduction shaft was investigated.It was found that the carbon potential of gas phase within temperature area is much higher than that of burden,which results in carburization of burden.Carbon content in the pellets increases with a descent of burden in shaft.The sulfur content in pellets almost remains the same during the said process,the sulfur content in sponge iron originates from iron ores.

关 键 词：直接还原 竖炉 析碳 海绵铁 BL法 

分 类 号：TF703.52[冶金工程—钢铁冶金]