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CFD modelling of non-metallic inclusions removal process in the T-type tundish

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: The aim of performed research is to diagnose the possibilities of non-metallic inclusions removal from liquid steel flowing through the two-strand T-type tundish with its current configuration. Design/methodology/approach: Research were performed with numerical simulations. Initial conditions for inclusions distribution were obtained earlier with experimental measurements during industrial casting conditions. Findings: Numerical simulations let to investigate the flow field structure of liquid steel in the tundish and its impact on inclusions trajectories and separation from steel to the slag. Moreover it was found that standard boundary condition (trap) available in commercial code for disperse phase is not suitable to model complex physical phenomena occurring at the steel-slag interphase. Research limitations/implications: Commercial use of computational codes for the analysis of work and design of industrial facilities is a relatively inexpensive tool Practical implications: The research results presented in the paper can be used for steel production of high purity steels. Originality/value: Presented results may contribute to significant improvements in process efficiency of investigated tundish.
Rocznik
Strony
590--595
Opis fizyczny
Bibliogr. 14 poz., rys., tab.
Twórcy
autor
  • Department of Metals Extraction and Recirculation, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland
autor
  • Department of Metallurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-085 Katowice, Poland
autor
  • Institute of Thermal Machinery, Czestochowa University of Technology, Al. Armii Krajowej 21, 42-200 Częstochowa, Poland
Bibliografia
  • [1] S. Lopez-Ramirez, J.J. Barreto, J. Palafox-Ramos, R.D. Morales, D. Zacharias, Modeling study of influence of turbulence inhibitor on the molten steel flow, tracer dispersion, and inclusion trajectories in tundish, Metallurgical Transactions B 32 (2001) 615-627.
  • [2] J.J. Barreto, R.D. Morales, S. Lopez- Ramirez, J. Palafox-Ramos, Model studies of steel flow and inclusion trajectory optimization in large volume tundishes, Proceedings of the 17th Process Technology Conference, Orlando, 2000, 991-1007.
  • [3] S. Joo, J.W. Han, R.I.L. Guthrie, Inclusion behavior and heat transfer phenomena in steelmaking tundish operations. Part 2. Mathematical model for liquid steel in tundishes, Metallurgical Transactions B 24 (1993) 767-777.
  • [4] S. Joo, J.W. Han, R.I.L. Guthrie, Inclusion behavior and heat transfer phenomena in steelmaking tundish operations. Part 3. Applications - computational approach to tundish design, Metallurgical Transactions B 24 (1993) 779-788.
  • [5] J. Jowsa, A. Cwudziński, S. Garncarek, T. Merder, Numerical modeling of non-metallic inclusions removal from liquid steel in the tundish with flow control devices, Metallurgist -News Metallurgical 3 (2010) 83-86.
  • [6] G. Solorio-Diaz, R.D. Morales, J. Plafox-Ramos, A. Ramos-Banderas, Modelling the effects of a swirling flow on tem-perature stratification of liquid steel and flotation of inclusions in a tundish, ISIJ International 45/8 (2005) 1129-1137.
  • [7] A. Cwudziński, Numerical simulation of behaviour a non-metallic inclusions in an one-strand slab tundish with flow control devices, Archives of Metallurgy and Materials 56/3 (2011) 611-618.
  • [8] Rückert, M. Warzecha, R. Koitzsch, M. Pawlik, H. Pfeifer, Particle Distribution and Separation in Continuous Casting Tundish, Steel Research International 80 (2009) 568-576.
  • [9] N. Bessho, H. Yamasaki, T. Fujii, T. Nozaki, S. Hiwasa, Removal of inclusion from molten steel in continuous casting tundish, ISIJ International 32 (1992) 157-163.
  • [10] http://www.ansys.com
  • [11] T. Merder, J. Pieprzyca, Z. Kudliński, L. Bulkowski, U. Galisz, H. Kania, Modeling of steel flow in the continuous casting tundish in the steelworks Baildon -Gonar-Bis Sp. z o.o., Metallurgist - News Metallurgical 3 (2009) 178-184.
  • [12] Crowe, M. Sommerfeld, Y. Tsuji, Multiphase Flows with Droplets and Particles, CRC Press, London, 1989, 191.
  • [13] Manual AnsysFluent, 2010.
  • [14] M. Warzecha, Modeling of the steel flow and non-metallic inclusion separation due to flotation in a six-strand cc tundish, Materials Science Forum 706-709 (2012) 1556-1561.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-6b2278ee-64a1-4c06-81b4-3849c9398d69
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