China's Refractories

《中国耐火材料》英文版

China's Refractories ›› 2021, Vol. 30 ›› Issue (2): 45-50.DOI: 10.19691/j.cnki.1004-4493.2021.02.009

• Original article • Previous Articles     Next Articles

An Innovative Submerged Entry Nozzle Design for Billet and Bloom Casting

Gernot HACKL1,*(), Yong TANG1, Gerald NITZL2, Dennis SCHURMANN3, Bernd WILLERS3, Sven ECKERT3   

  1. 1 RHI Magnesita, Leoben 8700, Austria
    2 RHI Magnesita, Wien 1120, Austria
    3 Helmholtz Zentrum Dresden-Rossdorf e. V., Dresden 01328, Germany
  • Online:2021-06-15 Published:2021-06-15
  • Contact: Gernot HACKL
  • About author:Gernot Hackl obtained his master’s degree from the chair of ceramics, Montanuniversität Leoben (Austria) in 2005. He started his career as a research associate in the field of computational product and process development the same year. Among others, his research activities are focusing on the characterization and development of flow control refractory products for the continuous casting process. He is holding several patents and has published numerous papers in that research field and is responsible for the global simulation activities at RHI Magnesita.

Abstract:

Fluid flow in the mold has a significant impact on the quality of continuously cast steel products. Since it is strongly influenced by the SEN design, attention has to be paid on its geometry. In this paper the main principles of a novel SEN type will be described. Water modeling and Computational Fluid Dynamics (CFD) are applied to characterize the flow pattern under different conditions. Furthermore, the interaction with electromagnetic stirring (M-EMS) is analyzed by means of a liquid melt model. Finally, actual steel plant performance data and observations are discussed.

Key words: computational fluid dynamics, liquid metal modeling, mold electromagnetic stirring, submerged entry nozzle, isostatically pressed products