Simulation of Oxygen Penetration and Decarburisation in EAF Using Supersonic Injection System

この論文にアクセスする

この論文をさがす

著者

抄録

The supersonic jet generated by a Laval nozzle in air or in steel has been modelled to vary degrees of complexity and with different goals.<sup>1, 2)</sup><br>This paper describes the application of our model to an injection system based on fixed lances, placed in the furnace walls without the help of CFD simulation, which is certainly very precise, but very time consuming and useless for an on line control.<br>The approach followed here is energy-based and it allows estimating the depth reached by the O<sub>2</sub> during its penetration within the slag and steel. It can be used for an on line control and for the whole description of the injection process. The calculation of a theoretical interface surface allows investigating the chemical process and the mass transport phenomena induced by the injection itself.<br>This simulation can be used to investigate the required injection parameters to ensure the maximum mass exchange with the bath and to foresee new injection technologies performances.<br>Moreover, this model of the supersonic injection allows the construction of a decarburisation model that can evaluate the effects and the efficiency of the injection technology.<br>This article describes the jet-penetration model and the decarburisation model.<br>The validation of the model has been performed by the comparison with the experimental data of the Tenaris-Dalmine EAF and the KT Supersonic Injection System (the chemical package of Techint Technologies for the multi-point injection of oxygen, carbon and other fines into the EAF).

収録刊行物

  • ISIJ international

    ISIJ international 44(8), 1342-1349, 2004-08-15

    一般社団法人 日本鉄鋼協会

参考文献:  11件中 1-11件 を表示

  • <no title>

    MAPELLI C.

    7th Europ. Electric Steelmaking Conf., 2002, 2002

    被引用文献1件

  • <no title>

    DELLA FOGLIA U.

    7th Europ. Electric Steelmaking Conf., 2002, 2002

    被引用文献1件

  • <no title>

    STORY S. R.

    CISR Report, 1997

    被引用文献1件

  • <no title>

    GU L.

    Electric Furnace Conf. Proc., 1999 269, 1999

    被引用文献1件

  • <no title>

    ALLEMAND B.

    2000 Process Technology Conf. Proc. 927, 2000

    被引用文献1件

  • <no title>

    THIRING M. W.

    Proc. 4th. Int. Symp. Combustion, 1953 789, 1953

    被引用文献1件

  • <no title>

    OETERS F.

    Stahl Eisen 155, 1989

    被引用文献1件

  • <no title>

    TURKDOGAN E. T.

    Physical chemistry of high temperature technology, 1980

    被引用文献32件

  • <no title>

    BARIN I.

    Thermochemical Properties of Inorganic Substances, 162,174,491-492, 1973

    被引用文献36件

  • <no title>

    HOLTMANN H. G.

    AISE Steel Technology, 2003

    被引用文献1件

  • <no title>

    SZEKELY J.

    Rate Phenomena in Process Metallurgy 710, 1971

    被引用文献1件

各種コード

ページトップへ