摘要
利用ZnO在石墨坩埚中的还原反应(ZnO+C=Zn+CO)产生金属锌蒸气,模拟高炉块状带烧结矿、球团矿和焦炭吸附锌蒸气和再氧化过程。研究得到:金属锌蒸气在烧结矿表面吸附和再氧化的速度随着温度的升高而提高,表面吸附和再氧化的速度在800℃左右达到最大值;随着烧结矿、球团矿和焦炭粒度的增大,锌蒸气吸附反应的界面积降低,烧结矿、球团矿和焦炭中的ZnO含量降低,锌蒸气通过炉顶煤气排出的比例增加。
The adsorption and re-oxidation of zinc vapor for the sinter,pellets and coke in the lump zone of BF were simulated by the reduction reaction of zinc vapor（ZnO＋C = Zn＋CO） in graphite crucible.The results show that the adsorption and re-oxidation rate of zinc vapor on sinter surface become faster with the higher temperature,and it reaches the max value at 800 ℃;the interfacial area of adsorption reaction for zinc vapor and ZnO content in sinter,pellet and coke will be reduced with increase of particle size of sinter,pellet and coke,the discharge rate of zinc vapor through stock gas can be increased.
出处
《钢铁》
CAS
CSCD
北大核心
2013年第2期14-17,共4页
Iron and Steel
基金
国家自然科学基金资助项目(50374036)
关键词
高炉
原料粒度
ZnO吸附
BF
raw material granularity
ZnO adsorption
