Визначення впливу конструктивних параметрів донного продувного блоку на ефективність процесів гомогенізації розплаву

  • Л Молчанов

Abstract

Based on the results of water modeling, the influence of the design of the bottom blowing device for the teeming ladle on the efficiency of mass-transfer processes in the liquid melt has been determined, namely, the effect of the bubble-forming chamber design on the duration of the melt homogenization has been determined. The bottom blowing devices equipped with bubble-forming chamber of slit, channel and non-directional types have been studied. According to the research, it was determined that the most effective design of the bubble-forming chamber for bottom blowing devices is the use of non-directional porosity materials. Their use allows obtaining a stable column of small bubbles, thereby reducing the time of homogenization by 14%.

References

1. Klassifikatsiya rezhimov peremeshivaniya stali v kovshe s ispolzovaniem matematicheskogo modelirovaniya / A.N. Smirnov, I.N. Salamin, E.V. Oshovskoy // NaukovI pratsI DonNTU. MetalurgIya. – 2009. – No. 11. – P.73 – 86. (in Russian)
2. I.N. Salamash. Klassifikatsiya rezhimov peremeshivaniya zhidkoy stali v kovshe pri produvke inertnyim gazom / NaukovI pratsI DonNTU. MetalurgIya. – 2012. - No. 1(14)-2(15). – P. 53-57. (in Russian)
3. Velychko O. H., Stoianov O.M., Boichenko B.M., Niziaiev K.H. Tekhnolohii pidvyshchennia yakosti stali: Pidruchnyk. – Dnipropetrovsk: Seredniak T.K., 2016. – 196 p. (in Ukrainian)
4. Markov B.L., Kirsanov A.A. Fizicheskoe modelirovnie v imetallurgii. – M.: Metallurgiya, 1984. – 119 p. (in Russian)
Published
2020-03-23
Section
Статті