Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Theoretical Analysis of LD Converter Operation by Mathematical Model Considered Scrap-Melting Process
Shigeo ASAIIwao MUCHI
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1971 Volume 57 Issue 8 Pages 1331-1339

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Abstract

In order to predict the behaviors of process veriables which may be caused by the melting process of scrap fed into LD converter, a mathematical model for the scrap-melting process has been involved into the mathematical model of LD converter proposed by the authors previously, and concerning the relations between the temperature of steel bath and the carbon concentration in molten steel under various operating conditions, numerical calculations have been conducted with the aid of digital computer, and the calculated results of the transitional variations of these two variables have been illustrated on the T-C diagram. From the comparisons of the calculated results with the operating results obtained by the other investigators in LD converter, it may be considered that the model presented in this paper is applicable for the prediction of the behaviors of process variables even in the operations of the comparatively high value of scrap ratio.
Furthermore, an theoretical analysis concerning the effects of the process of scrap melting on the transitional variations of the process variables in the converter has been developed in this paper.

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© The Iron and Steel Institute of Japan
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