Contributions Regarding the Study of the Mixed Plume Zone Size Influence on the Steel Micro-Alloying Processes by Powder Injection

  1. Prof. Dr. P. Neumann2,
  2. Dr. D. Allen3 and
  3. Prof. Dr. E. Teuckhoff4
  1. Victor Geanta,
  2. Radu Stefanoiu and
  3. Nicolae Constantin

Published Online: 5 JAN 2006

DOI: 10.1002/3527606181.ch26

Steels and Materials for Power Plants, Volume 7

Steels and Materials for Power Plants, Volume 7

How to Cite

Geanta, V., Stefanoiu, R. and Constantin, N. (2000) Contributions Regarding the Study of the Mixed Plume Zone Size Influence on the Steel Micro-Alloying Processes by Powder Injection, in Steels and Materials for Power Plants, Volume 7 (eds P. Neumann, D. Allen and E. Teuckhoff), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606181.ch26

Editor Information

  1. 2

    Max-Planck-Institut für Eisenforschung, Max-Planck-Str. 1, 40237 Düsseldorf, Germany

  2. 3

    ABB Asltom Power UK Ltd., Cambridge Road, Whetstone, Leicester LE9 GLH, United Kingdom

  3. 4

    Siemens AG, Postfach 3240, 91050 Erlangen, Germany

Author Information

  1. “POLITEHNICA” University of Bucharest, Romania

Publication History

  1. Published Online: 5 JAN 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301959

Online ISBN: 9783527606184

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Keywords:

  • steels for power plants;
  • materials for power plant;
  • study of the mixed plume zone size influence;
  • steel micro-alloying;
  • powder injection

Summary

Relying on a physical model is studied the influence of the mixed plume zone size above the efficiency of the powder injection alloying processes. The physical model of the plume zone is based on the fact, that the dissolution process of the powder is auditing by the mixing process's trough the value of the dissolution time. This parameter determines the efficiency of the metallurgical processes. To estimate the influence of the plume zone size on the alloying processes has been use a mathematical relation of the graphite particle's dissolution time in one steel melt that is stirring under the influence of the technological mixed fluid gas-powder injection. In accordance with this physical model the mixed plume zone through the shape, size and specially, the way of spreading with gas bubbles and powder material particles represents the foundation of the whole the metallurgical processes. The theoretical model checking was make relying on experimental researches consisting in the injection into the metal bath of the graphite powder.