Abstract
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.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
C. B. Xu, D. Q. Gang, J. Iron Steel Res. Int. 17 (2010) No. 3, 1–7.
Y. Ohno, M. Matsuura, H. Mitsufuji, T. Furukawa, ISIJ Int. 32 (1992) 838–847.
H. Helle, M. Helle, H. Saxen, F. Pettersson, ISIJ Int. 50 (2010) 931–938.
Y. H. Han, Q. G. Xue, Y. Z. Li, Adv. Mater. Res. 146 (2011) 417–423.
C. E. Loo, L. T. Matthews, D. P. O’dea, ISIJ Int. 51 (2011) 930–938.
T. Nishimura, K. Higuchi, M. Naito, K. Kunitomo, ISIJ Int. 51 (2011) 1316–1321.
P. F. Nogueira, R. J. Fruehan, Metall. Mater. Trans. B 36 (2005) 583–590.
Y. H. Han, Fundamental Research on Ironmaking Process of Top Gas Recycling-oxygen Blast Furnace, University of Science and Technology Beijing, Beijing, 2012.
H. Mizoguchi, H. Suzuki, S. Hayashi, ISIJ Int. 51 (2011) 1247–1254.
H. Mizoguchi, S. Hayashi, Tetsu-to-Hagane 97 (2011) 597–603.
Y H. Han, J. S. Wang, Y Z. Li, X F. She, L. T. Kong, Q. G. Xue, J. Univ. Sci. Technol. Beijing 33 (2011) 1280–1286.
P. F. Nogueira, R. J. Fruehan, Metall. Mater. Trans. B 35 (2004) 829–838.
P. Kaushik, R. J. Fruehan, Ironmak. Steelmak. 34 (2007) 10–22.
X. L. Wang, Ferrous Metallurgy (Ironmaking), Metallurgical Industry Press, Beijing, 2006.
A. Inayoshi, S. Hayashi, Tetsu-to-Hagane 96 (2010) 586–591.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation Item: Item Sponsored by National Basic Research Program of China (2012CB720401); National Natural Science Foundation of China and Baosteel (51134008)
Rights and permissions
About this article
Cite this article
Zhang, Hj., She, Xf., Han, Yh. et al. Softening and melting behavior of ferrous burden under simulated oxygen blast furnace condition. J. Iron Steel Res. Int. 22, 297–303 (2015). https://doi.org/10.1016/S1006-706X(15)30003-0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(15)30003-0