Injection of Flux into the Blast Furnace via Tuyeres for Optimising Slag Formation

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    • MA Jitang
    • Division of Process Metallurgy, Lulea University of Technology


Based on discussion of the slag formation problems occurred during a commercial scale blast furnace test of 100 % high Fe-content self-fluxed pellets, a proposal of replacing the charge of flux from the top by injection <I>via</I> tuyeres has been presented. It will optimise the slag formation process and provide a great potential of further increase productivity with smooth operation due to: 1) decrease bosh slag volume significantly; 2) obtain even and proper basicities of primary slag, bosh slag, tuyere slag and final slag formed along the height the blast furnace.


  • Transactions of the Iron and Steel Institute of Japan  

    Transactions of the Iron and Steel Institute of Japan 39(7), 697-704, 1999-07-15 

    The Iron and Steel Institute of Japan

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