METHOD FOR OPERATING ALTERNATING-CURRENT ELECTRIC ARC FURNACE, DEVICE FOR PERFORMING METHOD, AND ALTERNATING-CURRENT ELECTRIC ARC FURNACE HAVING SUCH DEVICE
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United States of America Patent
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Apr 24, 2014
app pub date -
Mar 20, 2012
filing date -
Apr 13, 2011
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Abstract
During operation of an alternating-current electric arc furnace, which has at least one electrode for producing a melt, vibrations are measured at a wall of a furnace vessel, whereby a slag height of the melt is determined. A rapid reaction to the change in the slag height is made possible by adjusting the arc length of the at least one electrode in the case of deviations of a measured actual value of the slag height from a target value.
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