Analysis of Actual Blast Furnace Operations and Evaluation of Static Liquid Holdup Effects by the Four Fluid Model

この論文にアクセスする

この論文をさがす

著者

抄録

The purpose of this paper is to extend and validate a previously presented model of the blast furnace shaft. This model uses conservative differential equations to analyse simultaneous four phase motion, heat transfer and chemistry. First, the paper describes some enhancements to the model. After this, the model is validated against several sets of operational and descending probe data from various blast furnaces. The calculated temperature fields show good agreement with two dimensional fields measured by descending probes at both medium and high rates of PC injection. Finally, the third section considers the effect of including static liquid holdup on the model predictions. Three correlations for static liquid holdup were examined. For all correlations, when static liquid holdup was included in the calculations the net liquid flux towards the raceway increased due to the transport of static liquid by the solid. Further, as static holdup reduces the volume available for gas flow, the gas velocity increases causing greater gas-solid heat transfer. This increases the rates of direct reduction and solution loss, resulting in increased predicted production rates and decreased hot metal and top gas temperatures. Finally, for correlations that predict large static holdup in the raceway region, silicon transfer to hot metal is increased due to increased liquid metal residence times.

収録刊行物

  • ISIJ international

    ISIJ international 38(3), 246-255, 1998-03-15

    The Iron and Steel Institute of Japan

参考文献:  32件中 1-32件 を表示

  • <no title>

    HATANO M.

    Tetsu-to-Hagane 66, 1898, 1980

    被引用文献11件

  • <no title>

    YAGI J.

    Trans. Iron Steel Inst. Jpn. 22, 884, 1982

    被引用文献2件

  • <no title>

    SUGIYAMA T.

    Seitetsu Kenkyu (325), 34, 1987

    被引用文献4件

  • <no title>

    OHNO Y.

    Tetsu-to-Hagane 73, 2036, 1987

    被引用文献3件

  • <no title>

    TAKATANI K.

    CAMP-ISIJ 7, 50, 1994

    被引用文献7件

  • <no title>

    TAKEDA K.

    Ph. D. Thesis, University of London, 1994

    被引用文献1件

  • <no title>

    NOGAMI H.

    Tetsu-to-Hagane 78, 1222, 1992

    被引用文献6件

  • <no title>

    XINGGUO X.

    Tetsu-to-Hagane 78, 1230, 1992

    被引用文献2件

  • <no title>

    CHEN J.

    ISIJ Int. 33, 664, 1993

    被引用文献8件

  • <no title>

    ZHANG S. J.

    Proc. 25th Aust. N. Z. Chem. Eng. Conf. (Chemeca 97), 1997

    被引用文献1件

  • <no title>

    WANG G. X.

    Metall. Trans. B 28B, 333, 1997

    被引用文献1件

  • <no title>

    GUPTA G. S.

    ISIJ Int. 36, 32, 1996

    被引用文献4件

  • <no title>

    AUSTIN P. R.

    ISIJ Int. 37, 458, 1997

    被引用文献22件

  • <no title>

    AUSTIN P. R.

    ISIJ Int. 37, 748, 1997

    被引用文献15件

  • <no title>

    AUSTIN P. R.

    ISIJ Int. 38, 239, 1998

    被引用文献4件

  • <no title>

    SMITH J. M.

    Chemical Engineering Kinetics 392,479,508, 1981

    被引用文献1件

  • <no title>

    HEYNERT G.

    Stahl Eisen 79, 1545, 1959

    被引用文献3件

  • <no title>

    REID R. C.

    The Properties of Gases and Liquids 582, 1988

    被引用文献1件

  • <no title>

    RANZ W. E.

    Chem. Eng. Prog. 48, 141,173, 1952

    被引用文献5件

  • <no title>

    MAGNUSSEN B. F.

    17th Symp. (Int. )Combust. 1383, 1979

    被引用文献1件

  • <no title>

    FLINT P. J.

    Metall. Trans. B 23B, 267, 1992

    被引用文献4件

  • <no title>

    PERRY R. H.

    Perry's Chemical Engineers Handbook, 1984

    被引用文献12件

  • <no title>

    TURKDOGAN E. T.

    J. Iron Steel Inst. 179, 39, 1955

    被引用文献3件

  • <no title>

    RHIE C. M.

    AIAA J. 21, 1525, 1983

    被引用文献7件

  • <no title>

    TAKATANI K.

    Tetsu-to-Hagane 74, 1546, 1988

    被引用文献6件

  • <no title>

    THOMPSON J. F.

    Numerical Grid Generation, 1985

    被引用文献26件

  • <no title>

    KADOGUCHI K.

    Kobe Steel Eng. Rep. 46, 2., 1996

    被引用文献2件

  • <no title>

    YAMADA T.

    Kawasaki Steel Tech. Rep. 6, 16, 1974

    被引用文献3件

  • <no title>

    FUKUTAKE T.

    Ph. D. Thesis, Kyoto University 91,118, 1982

    被引用文献1件

  • <no title>

    NIU M.

    Ph. D. Thesis, Tohoku University 82, 1996

    被引用文献1件

  • <no title>

    SUGIYAMA T.

    Tetsu-to-Hagane 73, 242, 1987

    被引用文献1件

  • <no title>

    ARTHUR J. R.

    Trans. Faraday Soc. 47, 164, 1951

    DOI 被引用文献8件

被引用文献:  1件中 1-1件 を表示

各種コード

ページトップへ