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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。
The change trend of carbon and sulfur in the pellet ore during the reduction of BL furnace was studied. The carbon potential of the gas phase in the whole furnace zone was higher than that of the charge in the reduction zone of shaft furnace. When the charge was in carburizing process, The carbon content increased with the downward shift of shaft furnace feedstock. The content of sulfur in the pellet was basically unchanged in the reduction process, and the sulfur in sponge iron basically originated from the ore.