2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 3: Takano Intl. Symp. / Metals & Alloys Processing

Editors:Kongoli F, Noldin JH, Mourao MB, Tschiptschin AP, D'Abreu JC
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:550 pages
ISBN:978-1-987820-26-3
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Influence of Gas Flow Distribution as an Approach to the Blast Furnace Hearth Phenomena

    Andre Hirano1; Bruno Pinheiro da Silva2; Fernando Kaoru Fujihara3;
    1THYSSENKRUPP, Rio de Janeiro, Brazil; 2THYSSENKRUPP CSA, Rio de Janeiro, Brazil; 3FERGUS CONSULT, Rio de Janeiro, Brazil;
    Type of Paper: Keynote
    Id Paper: 80
    Topic: 3

    Abstract:

    ThyssenKrupp CSA Blast Furnaces are 3000mA³ class furnaces that have a unique profile configuration, which imposes different understandings of hearth conditions. Although the constant effort for gas flow and process heat balance stabilization, variations in the Blast Furnace operation are frequent, commonly related to hot metal and slag tapping cycles. Thereby control the liquid flow in the hearth has great influence on transport phenomena and fluctuations on the burden descent and the unusual liquid flow should be evaluated in order to control temperatures and wear. The understanding of these effects is very important to the BF performance and life spam. The coke particle size distribution shows a significant influence on the liquid flow line. Therefore, measures to change the philosophy of burden distribution were taken with a focus on control of peripheral flow. This paper shows a brief review of hearth phenomena and the results noticed at TKCSAA's Blast Furnaces.

    Keywords:

    Blast; Coke; Furnace; Process;

    References:

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    [2] B.F.Gandra. Desenvolvimento de Modelo Matemático do Fluxo de Líquidos no Cadinho do Alto Forno.2006, pg.16-27;
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    [4] R.J.Nightingale,F.W.B.Tanzil. Blast Furnace Hearth Condition Monitoring and Taphole Management Techniques. La Revue de Metallurgie 2001, 533-539.
    [5] F.W.B.Tanzil, W.V.Pinczewski. Blast Furnace Hearth Drainage: Physical Mechanisms. Chemical Engineering Science, 1987, vol.42, n&#186;11,2557-2567;
    [6] K.Shibata, Y.Kimura, M.Shimizu. Dynamics of Deadman Coke and Hot Metal Flow in a Blast Furnace Hearth. ISIJ International, vol 30 (1990),n&#186;3,208-215;
    [7] F.K.Fujihara. Long Campaign Life of CST No 1 Blast Furnace. STAHL 2004
    [8] F.K.Fujihara. CST No 1 Blast Furnace - 22 years of Burden Distribution Control. 2005.
    [9] H.Ono-Nakano. Effect of Slag Components on reducibility and melt Formation of Iron Ore Sinter ISIJ International, Vol. 42 (2002), No. 5, pp. 558–560
    [10] X.LIU,S.Wu, W.Huang, K.Zhang, K.Du. Influence of High Temperature Interaction between Sinter and Lumps Ore on the Formation Behavior of Primary Slags in Blast Furnace. ISIJ International, Vol. 54 (2014), No. 9, pp. 2089–2096

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    Cite this article as:

    Hirano A and Pinheiro da Silva B and Fujihara F. Influence of Gas Flow Distribution as an Approach to the Blast Furnace Hearth Phenomena. In: Kongoli F, Noldin JH, Mourao MB, Tschiptschin AP, D'Abreu JC, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 3: Takano Intl. Symp. / Metals & Alloys Processing. Volume 3. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 369-380.