Swelling behavior of hot preheated pellets in reduction roasting process
Swelling behavior of hot preheated pellets in reduction roasting process
复制标题
热预热球团矿还原焙烧过程中的膨胀行为
DOI:
10.1007/s11771-016-3342-3
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发表时间:
2016-12
影响因子:
4.4
通讯作者:
Jiang Tao
中科院分区:
文献类型:
--
作者:
Han Gui-hong;Zhang Duo;Huang Yan-fang;Jiang Tao
One kind of facile coal-based direct reduction process is using hot preheated pellets for reduction in grate kiln. In this work, effects of reduction parameters on swelling index of hot preheated pellets were investigated by photographic technique under isothermal conditions. Experimental results show that swelling index of pellets is firstly increased then gradually decreased with increasing reduction time, while that is found to be an obvious decrease from 175 % to 30% with the variation of temperature from 900 °C to 1100 °C. Results of XRD combined with SEM reveal that swelling behavior of pellets is decided by structure of newly formed metal iron grains. The formation and growth of fibers iron grains promote the increase in volume. Low temperature and low CO content are favored to the formation and orientated growth of metal iron grains in the one step process.
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DOI:
10.1007/bf02657290
发表时间:
1984-12
期刊:
Metallurgical Transactions B
影响因子:
--
作者:
Mei Chang;L. Jonghe
通讯作者:
Mei Chang;L. Jonghe
影响因子:
1.8
作者:
M. Nasr;A. A. Omar-A.;M. Hessien;A. A. Ei-Geassy-A.
通讯作者:
M. Nasr;A. A. Omar-A.;M. Hessien;A. A. Ei-Geassy-A.
影响因子:
1.8
作者:
De‐qing Zhu;Vinicius Mendes;Vinicius Mendes;T. Chun;Jian Pan;L. Qihou;Jian Li;G. Qiu
通讯作者:
De‐qing Zhu;Vinicius Mendes;Vinicius Mendes;T. Chun;Jian Pan;L. Qihou;Jian Li;G. Qiu
影响因子:
1.8
作者:
E. Kasai;Takaya Kitajima;Takazo Kawaguchi
通讯作者:
E. Kasai;Takaya Kitajima;Takazo Kawaguchi
影响因子:
2.1
作者:
H T Wang;H Y Sohn
通讯作者:
H T Wang;H Y Sohn