Three dimensional mathematical model of the iron ore sintering process based on multiphase theory

In the integrated steel industries the sintering process plays an important role furnishing raw material to the blast furnace. In this work, a computational simulation of the sinter process is developed that is able to predict the most important phenomena within the sintering bed. The model is based on the multi phase concept with multiple components described by conservation equations of each component coupled with the momentum, chemical reactions and heat transfer. The model validation was carried out comparing the model predictions with averaged industrial data and local temperature measurements within the sinter strand. The model predictions presented good agreement with the averaged values measured on the industrial sinter process.

[1]  Richard J. Fruehan,et al.  Blast furnace burden softening and melting phenomena: Part III. melt onset and initial microstructural transformations in pellets , 2006 .

[2]  T. Higuchi,et al.  Development of Secondary-fuel Injection Technology for Energy Reduction in Iron Ore Sintering Process , 2011 .

[3]  Hiroshi Nogami,et al.  A mathematical model for blast furnace reaction analysis based on the four fluid model , 1997 .

[4]  C. Bai,et al.  Behavior of Liquid Phase Formation during Iron Ores Sintering , 2011 .

[5]  Won Yang,et al.  Application of Intra-Particle Combustion Model for Iron Ore Sintering Bed , 2006 .

[6]  M. Melaaen,et al.  CALCULATION OF FLUID FLOWS WITH STAGGERED AND NONSTAGGERED CURVILINEAR NONORTHOGONAL GRIDS-THE THEORY , 1992 .

[7]  T. Higuchi,et al.  Effect of High-phosphorous Iron Ore Distribution in Quasi-particle on Melt Fluidity and Sinter Bed Permeability during Sintering , 2009 .

[8]  D. Bhattacharjee,et al.  Assessment of blast furnace behaviour through softening–melting test , 2006 .

[9]  Nirupam Chakraborti,et al.  Dynamic process modelling of iron ore sintering , 1997 .

[10]  Hiroshi Nogami,et al.  Three-dimensional Multiphase Mathematical Modeling of the Blast Furnace Based on the Multifluid Model , 2002 .

[11]  Y. Sasaki,et al.  Formation of Calcium Ferrites under Controlled Oxygen Potentials at 1273 K , 2010 .

[12]  Eiki Kasai,et al.  Design of Bed Structure Aiming the Control of Void Structure Formed in the Sinter Cake , 2005 .

[13]  Yuichi Yamamura,et al.  Investigation on the Dioxin Emission from a Commercial Sintering Plant , 2005 .

[14]  Takazo Kawaguchi,et al.  Development of a 3-D sinter process mathematical simulation model , 2005 .

[15]  Hermann Hofbauer,et al.  Modeling and simulation of heat front propagation in the iron ore sintering process , 2004 .

[16]  J. Litster,et al.  A mathematical model for the prediction of granule size distribution for multicomponent sinter feed. , 1989 .