INFLUENCE OF IMMERSION DEPTH OF LADLE SHROUD IN LIQUID STEEL ON RANGE OF THE TRANSITION ZONE FOR ONE-STRAND TUNDISH DURING CONTINUOUS CASTING OF STEEL
DOI:
https://doi.org/10.7494/mafe.2017.43.2.81Keywords:
sequence casting, tundish, ladle shroud, numerical modeling, transition zoneAbstract
This article presents the results of computer simulation of the flow of liquid steel through one-strand tundish. In paper was examined four immersion depth of ladle shroud in liquid steel. The simulation was performed for sequence of slabs casting. The effect of calculations were a residence time distribution curves (RTD), type (F). Based on the distribution curves range of the transition zone for the different variants of the immersion depth of ladle shroud were estimated. Based on the results of numerical calculations, it was found that increase the immersion depth of ladle shroud in liquid steel influences on the range of transition zone. For numerical simulation of the flow of liquid steel Ansys-Fluent program were used.
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References
Thomas B.G.: Modeling of Continuous Casting Defects Related to Mold Fluid Flow. AIST Transactions, 3, 5 (2006), 2–17
Chattopadhyay K., Isac M., Guthrie R.I.L.: Physical and Mathematical Modelling to Study the Effect of Ladle Shroud Mis-Alignment on Liquid Metal Quality in a Tundish. ISIJ International, 51, 5 (2011), 759–768
Wang G., Yun M., Zhang C., Xiao G.: Flow Mechanism of Molten Steel in a Single-Strand Slab Caster Tundish Based on the Residence Time Distribution Curve and Data. ISIJ International, 55, 5 (2015), 984–992
Sahai Y., Emi T.: Criteria for Water Modeling of Melt Flow and Inclusion Removal in Continuous Casting Tundishes. ISIJ International, 36, 9 (1996), 1166–1173
Zhang J., Yang S., Li J., Yang W., Wang Y., Guo X.: Large Eddy Simulation on Flow Structure in Dissipative Ladle Shroud and a Tundish. ISIJ International, 55, 8 (2015), 1684–1692
Solorio-Diaz G., Davila-Morales R., Barreto-Sandoval J. de J., Vergara-Hernández H.J., Ramos-Banderas A., Galvan S.R.: Numerical Modelling of Dissipation Phenomena in a New Ladle Shroud for Fluidynamic Control and
Its Effect on Inclusions Removal in a Slab Tundish. Steel Research International, 85, 5 (2013), 863–874
Zhang J., Li J., Yan Y., Chen Z., Yang S., Zhao J., Jiang Z.: A Comparative Study of Fluid Flow and Mass Transfer in a Trumpet-Shaped Ladle Shroud Using Large Eddy Simulation. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 47, 1 (2016), 495–507
Davila-Morales R., Garcia-Hernández S., Barreto J. de J., Ceballos-Huerta A., Calderon-Ramos I., Gutierrez E.: Multiphase Flow Modeling of Slag Entrainment During Ladle Change-Over Operation. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 47, 4 (2016), 2595–2606
Cwudziński A., Jowsa J.: Numerical Simulation Heat Transfer in the Slab Tundish. Metallurgy and Foundry Engineering, 33, 2 (2007), 97–103
Cwudziński A.: Numerical Simulation of Liquid Steel Flow in Wedge-type One-Strand Slab Tundish with a Subflux Turbulence Controller and an Argon Injection System. Steel Research International, 81, 2 (2010), 123–131
Jha P.K., Rao P.S., Dewan A.: Effect of Height and Position of Dams on Inclusion Removal in a Six Strand Tundish. ISIJ International, 48, 2 (2008), 154–160
Cwudziński A.: Numerical and Physical Prediction of Hydrodynamic Conditions in One-Strand Slab Tundish. Metallurgical Research & Technology, 111, 1 (2014), 45–55
Cwudziński A.: Numerical and Physical Modeling of Liquid Steel Active Flow in Tundish with Subflux Turbulence Controller and Dam. Steel Research International, 85, 5 (2014), 902–917
Chakraborty S., Hirose T., Jones B., Dukelow D.A.: Transition Reduction and Simultaneous Maintenance of Steel Quality in Granite City Tundishes. Continuous Casting, 10 (2003), 41–46
Thomas B.G.: Modeling Study of Intermixing in Tundish and Strand during a Continuous Casting Grade Transition. Continuous Casting, 10 (2003), 115–127
Cwudziński A.: Regulation of Liquid Steel in the Continuous Casting Slab Tundish. PhD dissertation, Czestochowa University of Technology, Faculty of Materials Processing Technology and Applied Physics, 2008
Cwudziński A.: Physical and Mathematical Simulation of Liquid Steel Mixing Zone in One Strand Continuous Casting Tundish. International Journal of Cast Metals Research, 30, 1 (2017), 50–60