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Steel in Translation

, Volume 48, Issue 3, pp 179–184 | Cite as

Uniformity of Blast-Furnace Parameters over the Perimeter

  • V. P. Lyalyuk
  • I. G. Tovarovskii
  • D. A. Kassim
Article

Abstract

Operational experience with the 5000-m3 blast furnace 9 at the Krivorozhstal plant shows that nonuniform blast distribution over the tuyeres results in very nonuniform distribution of the theoretical combustion temperature, the yield of blast-furnace gas, and the total energy of the blast flux and flux of blast-furnace gas over the hearth perimeter. That, in turn, significantly affects the smoothness of furnace operation, its productivity, the coke consumption, and the quality of the hot metal produced. The influence of 1% change in the variation coefficients of the input blast parameters on the productivity and coke consumption is taken into account. The results may be used in factorial analysis of periods of blast-furnace operation with different parameters. The nonuniform distribution of the blast flow rate over the tuyeres has the greatest influence on furnace performance. Therefore, it is necessary to find means of ensuring uniform distribution of blast at constant temperature over the tuyeres.

Keywords

nonuniform blast distribution variation coefficient theoretical combustion temperature total mechanical energy blast-furnace gas gas yield tuyeres 

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • V. P. Lyalyuk
    • 1
  • I. G. Tovarovskii
    • 2
  • D. A. Kassim
    • 1
  1. 1.Krivoy Rog Metallurgical InstituteKrivoy RogUkraine
  2. 2.Institute of Ferrous MetallurgyUkrainian National Metallurgical AcademyDneprUkraine

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