Softening and Melting Behavior of Ferrous Burden under Simulated Oxygen Blast Furnace Condition

被引:24
作者
Zhang, Hua-jie [1 ]
She, Xue-feng [1 ]
Han, Yi-hua [1 ]
Wang, Jing-song [1 ]
Zeng, Fan-bo [1 ]
Xue, Qing-guo [1 ]
机构
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
oxygen blast furnace; softening zone; melting zone; ferrous burden; SINTER; HYDROGEN; IRON; ORE;
D O I
10.1016/S1006-706X(15)30003-0
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The softening and melting behavior of sinter, pellet and mixed burden was researched through high temperature reaction tests under load simulating traditional blast furnace (T-BF) and oxygen blast furnace (OBF) conditions. The results indicated that compared with T-BF, the softening zone of sinter and pellet became wide, but the melting zone became narrow in OBF. The permeabilities of both sinter and pellet were improved in OBF. Under the condition of OBF, the temperature of softening zone of mixed burden was increased by 63 K, but the temperature of melting zone was decreased by 76 K. Therefore, the permeability of material layer was significantly improved. This was mainly caused by the change of the melting behavior of pellet. In addition, the quality of dripping iron in OBF was much better than that of T-BF.
引用
收藏
页码:297 / 303
页数:7
相关论文
共 15 条
[1]  
Han Y., 2012, FUNDAMENTAL RES IRON
[2]  
[韩毅华 Han Yihua], 2011, [北京科技大学学报, Journal of University Science and Technology Beijing], V33, P1280
[3]   Prospect analysis on New Ironmaking Technology of Oxygen Blast Furnace and Gas-recycle [J].
Han, Yihua ;
Xue, Qingguo ;
Li, Yanzhen .
ADVANCES IN SUPERALLOYS, PTS 1 AND 2, 2011, 146-147 :417-423
[4]   Optimization of Top Gas Recycling Conditions under High Oxygen Enrichment in the Blast Furnace [J].
Helle, Hannu ;
Helle, Mikko ;
Saxen, Henrik ;
Pettersson, Frank .
ISIJ INTERNATIONAL, 2010, 50 (07) :931-938
[5]   Influence of Hydrogen on Reaction Behavior of Sinter Under a Blast Furnace Simulated Condition [J].
Inayoshi, Atsusuhi ;
Hayashi, Shoji .
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 2010, 96 (10) :586-591
[6]   Mixed burden softening and melting phenomena in blast furnace operation Part 3 - Mechanism of burden interaction and melt exudation phenomenon [J].
Kaushik, P. ;
Fruehan, R. J. .
IRONMAKING & STEELMAKING, 2007, 34 (01) :10-22
[7]   Lump Ore and Sinter Behaviour during Softening and Melting [J].
Loo, Chin Eng ;
Matthews, Leanne Tracy ;
O'Dea, Damien Paul .
ISIJ INTERNATIONAL, 2011, 51 (06) :930-938
[8]   Influence of Hydrogen on Reaction Behavior of Sinter under Blast Furnace Simulated Condition-II [J].
Mizoguchi, H. ;
Hayashi, S. .
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 2011, 97 (12) :597-603
[9]   Influence of Mixing Coal Composite Iron Ore Hot Briquettes on Blast Furnace Simulated Reaction Behavior in a Packed Mixed Bed [J].
Mizoguchi, Hiroyuki ;
Suzuki, Hironori ;
Hayashi, Shoji .
ISIJ INTERNATIONAL, 2011, 51 (08) :1247-1254
[10]   Evaluation of Softening, Shrinking and Melting Reduction Behavior of Raw Materials for Blast Furnace [J].
Nishimura, Tsunehisa ;
Higuchi, Kenichi ;
Naito, Masaaki ;
Kunitomo, Kazuya .
ISIJ INTERNATIONAL, 2011, 51 (08) :1316-1321