Abstract
Composite agglomeration process (CAP) of iron ore fines has been proved an effective route for ironmaking burden production, and is characterized by low the fuel consumption and high the productivity compared with the traditional sintering process. Sintering behavior of pelletizing feed in CAP has not been studied fully yet. In this study, individual pellet and simulated CAP cells were roasted under the simulated sintering conditions. The compressive strength, FeO content and microstructures of roasted samples were investigated. The results show that pelletizing feed either from magnetite ore hematite concentrate can be indurated under the conditions of conventional iron ore sintering. Hematite pelletizing feed has better sintering property than magnetite pelletizing feed. Pelletizing feed consolidation in CAP cells is identical to the individual pelletizing feed, but the strength of CAP cells is much higher than the individual pelletizing feed. Higher basicity in both pelletizing feed and matrix feed is beneficial to the strength of CAP cells. Individual strength of pelletizing feed is not the decisive factor in CAP as the pelletizing feed has been embedded into the matrix with high basicity and formed an organic whole. The main chemical compositions and basicity of pelletizing feed and basicity matching with matrix feed is important.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
T. Jiang et al., “Study and Application of Composite Agglomeration Process of Fluoric Iron Concentrate”, (Paper presented at Proceedings of the 5th International Congress on the Science and Technology of Ironmaking, Shanghai, Oct, 2009), 152–156. (In Chinese)
T. Jiang et al.,”Composite Agglomeration Process of Iron Fines”, (Patent200510032095.6 in China)
T. Jiang et al., “Composite Agglomeration Process of Iron Fines”, (Paper presented at 3rd International Symposium on High-Temperature Metallurgical processing, Orlando Florida. Mar, 2012), 7–15.
T. Jiang et al., “Composite agglomeration process (CAP) for preparing blast furnace burden”. Ironmaking & Steelmaking, 37(1)(2010), 1–7.
T. Jiang et al., “Concept and Research of Composite Agglomeration Process of Iron Ore Fines”, (Paper presented at the Proceeding of 2006 National Annual Conference on Technical Exchange of Sintering & Pelletizing, Hohhot. Jun, 2006), 1–6. (In Chinese)
J. Fuetal., “Sintering and pelletizing”, (Changsha, Central South University Press, 2002).(In Chinese)
P. R. Dawson, “Recent developments in iron ore sintering”, Ironmaking & Steelmaking, 20 (1993), 135–159.
J. R. Wynnyckyj et al., “Solid state sintering in the induration of Iron Ore pellets”. Metallurgical Transactions, 5(5)(1974), 991–999.
N. Prieto Martinez et al., “Induration process of pellets prepared from mixed magnetite-35% hematite concentrates”. ISIJ international, 54(3)(2014), 605–612.
J. Pal et al., “Development of pellet-sinter composite agglomerate for blast furnace”. ISIJ international, 54(3)(2014), 620–627.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 TMS (The Minerals, Metals & Materials Society)
About this chapter
Cite this chapter
Yu, Z., Wang, R., Zhou, F., Zhang, Y., Li, G., Jiang, T. (2015). Sintering Behavior of Pelletizing Feed in Composite Agglomeration Process (CAP) of Iron Ore Fines. In: Jiang, T., et al. 6th International Symposium on High-Temperature Metallurgical Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48217-0_10
Download citation
DOI: https://doi.org/10.1007/978-3-319-48217-0_10
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48603-1
Online ISBN: 978-3-319-48217-0
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)