METHOD FOR DETERMINING A TIME FOR CHARGING AN ELECTRIC ARC FURNACE WITH MATERIAL TO BE MELTED, SIGNAL PROCESSING DEVICE, MACHINE-READABLE PROGRAM CODE, STORAGE MEDIUM AND ELECTRIC ARC FURNACE
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United States of America Patent
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Issued Date -
Feb 28, 2013
app pub date -
Mar 16, 2011
filing date -
Apr 12, 2010
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Abandoned
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Abstract
An electric arc furnace, signal processing device, storage medium, machine-readable program code, and method for determining a time for charging (e.g., recharging) an electric arc furnace with material to be melted (e.g., scrap) are provided. The electric arc furnace may include electrode(s) for heating material inside the electric arc furnace by an electric arc. By detecting a signal for determining a phase state of an electric arc root on the side of the material to be melted based on a captured electrode current, by checking whether the signal exceeds a predetermined threshold value for a predetermined minimum duration, and by ensuring that the charging time is reached at the earliest when the signal exceeds the predetermined minimum duration threshold value, a state-oriented charging time for an electric arc furnace can be determined to reduce energy use, resource use, and production time for a production cycle to reach a tap weight.
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