Abstract
It is of great importance to remove the inclusions as much as possible in the molten steel . The inclusion collision rate is significantly improved by generating centrifugal flow in the tundish with an electromagnetic device, which induces the inclusions to grow and float. However, the electromagnetic device requires an external equipment component that is difficult to maintain. Additionally, a turbulence inhibitor is commonly used to optimize the turbulence flow in the tundish . This paper describes a novel tundish design with a turbulence inhibitor that generates swirl flow in a cylindrical zone, which produced an effect similar to the electromagnetic device. The gravitational potential energy of the molten steel from the nozzle is converted into kinetic energy of the swirling flow in the tundish . The inclusion removal rates with various nozzle diameters were investigated, and the optimal turbulence inhibitor size and structure were identified by numerical simulation .
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Ånmark N, Karasev A, Jönsson PG (2017) The influence of microstructure and non-metallic inclusions on the machinability of clean steels. Steel Res Int 88(1):1–10
Ramesha DK, Hosur KS (2013) Numerical investigation of steel grade change using ANSYS. Int J Innovative Res Sci Eng Technol 2(10):5601–5606
Sahai Y, Emi T (2007) Tundish technology for clean steel production. World Sci:8–11
Solorio-Dĺaz G, Morales RD, Ramos-Banderas A (2005) Effect of a swirling ladle shroud on fluid flow and mass transfer. Int J Heat Mass Transf 48(17):3574–3590
Miki Y, Ogura S, Fujii T (1996) Separation of inclusions from molten steel in a Tundish by use of a rotating electromagnetic field. Kawasaki Steel Tech Rep 35:67–73
Miki Y, Kitaoka H, Sakuraya T, Fujii T (2009) Mechanism of separation of inclusions from molten steel stirred with rotating electro-magnetic field. Tetsu- to- Hagane 78(3):431–438
Ni P, Josson L, Ersson M, Jösson PG (2017) Application of a swirling flow producer in a conventional Tundish. ISIJ Int 57(12):2175–2184
Tripathi A, Ajmani SK (2011) Effect of shape and flow control devices on the fluid flow characteristics in three different industrial six strand billet caster Tundish. ISIJ Int 51(10):1647–1656
Hou Q, Yue Q, Wang H, Zou Z, Yu A (2008) Modelling of inclusion motion and flow patterns in swirling flow tundishes with symmetrical and asymmetrical structures. ISIJ Int 48(6):787–792
Aguilar-Rodriguez CE, Ramos-Banderas JA, Torres-Alonso E, Solorio-Diaz G, Hernández-Bocanegra CA (2018) Flow characterization and inclusions removal in a slab Tundish equipped with bottom argon gas feeding. Metallurgist 61(11–12):1055–1066
Hou Q, Zou Z (2005) Comparison between standard and renormalization group k-ε models in numerical simulation of swirling flow Tundish. ISIJ Int 45(3):325–330
Launder BE, Spalding DB (1974) The numerical computational of turbulent flows. Comput Methods Appl Mech Eng 3(2):269–289
Acknowledgements
The authors are especially grateful to the grants from the National Natural Science Foundation of China (Grant No. 51704052 and No. 51874061) for their financial support.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Yan, J., Li, T., Liu, J. (2019). Numerical Simulation of Inclusion Removal in a Novel Tundish with Swirl Flow. In: Jiang, T., et al. 10th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05955-2_4
Download citation
DOI: https://doi.org/10.1007/978-3-030-05955-2_4
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-05954-5
Online ISBN: 978-3-030-05955-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)