The sulfur method of molten iron

The sulfur method of molten iron

  • CN 102,471,814 B
  • Filed: 06/29/2010
  • Issued: 06/15/2016
  • Est. Priority Date: 06/30/2009
  • Status: Active Grant
First Claim
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1. the sulfur method of a molten iron, use mechanical agitation type desulfurizer, the sulfur method of described molten iron is characterised by, by being added to by lime desulfurizing agent top blast together with conveying gas that particle diameter is 30~

  • 400 μ

    m by the top-blown spray gun configured under towards vertical direction, the bath face of the molten iron utilizing stirring vane to carry out stirring carries out desulfurization process, by what reclaim in advance, the desulfurization slag carrying out desulfurization process with lime desulfurizing agent and produce adds to after on the bath face of described molten iron, utilize described stirring vane stirring molten iron 2~

    3 minutes, then described desulfurizing agent is added, if the inwall radius processing container housing molten iron is D, the radius of stirring vane is R, from process the horizontal range at center to described top-blown spray gun center of container be A time, the radius R of described stirring vane relative to the inwall radius D of described process container meeting in the scope of relation of following (1) formula, and described horizontal range A relative to the radius R of described inwall radius D and described stirring vane meeting in the scope of relation of following (2) formula,(1/3) ×

    D <

    R≤

    (1/2) ×

    D ... (1)R≤

    A≤

    (1/2)×

    D…

    (2)Wherein, (1) formula and in (2) formula, D is the inwall radius processing container housing molten iron, and R is the radius of stirring vane, and A is the horizontal range from center to the top-blown spray gun center processing container, and their unit is m.

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