Diancai Guo, Gordon A. Irons
Uneven movement of scrap during melting in an Electric Arc Furnace (EAF) causes operational problems such as cave-ins that interrupt electric power input and influence radiation heat loss to water-cooled side panels and roof. This study aims to elucidate the flow dynamics of interlocked scrap pieces by building an apparatus to simulate the scrap movement. Observations indicate that flow initiates when the suspended length of the pile bottom reaches the average scrap size, leading to cave-ins where scrap pieces slide against one another like ordinary granules. Post cave-in, the pile angle remains significantly larger than the typical angle of repose. A force balance analysis of a partially suspended scrap pile has been conducted, estimating the equivalent cohesion due to interlocking. Furthermore, a numerical model has been developed to replicate the scrap flow, showing reasonable agreement with the observed phenomena. These results enhance the understanding of how scrap movement affects EAF operations, potentially aiding in improving power efficiency and prolonging furnace service life.
@article{f9608314-f496-40e6-808b-effb28055ca3,
title={A STUDY OF STEEL SCRAP MOVEMENT},
author={Diancai Guo and Gordon A. Irons},
year={2004},
language={en}
}TY - JOUR TI - A STUDY OF STEEL SCRAP MOVEMENT AU - Diancai Guo AU - Gordon A. Irons PY - 2004 LA - en ER -
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