The Estimation of Strength and Fracture of Metallurgical Coke by Thermal Shock

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  • コークスの耐熱衝撃強度および熱衝撃破壊の推定
  • コークス ノ タイネツ ショウゲキ キョウド オヨビ ネツ ショウゲキ ハカイ

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Abstract

A fracture mechanism due to thermal stress of metallurgical coke in a blast furnace is investigated by nonlinear transient finite element analysis of heat transfer and thermal stress, as follows;<BR>(1) Thermal stress distribution in a coke disk heated locally by Joule's method.<BR>(2) Effect of initial temperature, thermal expansivity and diameter of coke on thermal stress distribution in a coke sphere.<BR>The strength of coke during rapid heating at high temperature can be estimated. The possibility of thermal schock fracture is deduced to occur in a lower part of a blast furnace.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 78 (7), 1116-1123, 1992

    The Iron and Steel Institute of Japan

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