Method for operating an electric arc furnace and melting plant having an electric arc furnace operated according to said method
A technology for melting equipment and electric arc furnaces, which can be used in lighting and heating equipment, furnaces, electric heating devices, etc., and can solve problems such as grid disturbance.
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[0030] according to figure 1 , the melting plant according to the invention comprises an electric arc furnace 2 having, for example, three electrodes 4 a - c which are electrically connected to a furnace transformer of a power supply 6 . The electrodes 4a-c are sunk into a furnace vessel 8 containing the scrap 7 to be melted, on the wall 9 of which a plurality of structure-borne sound receivers 10 are arranged. The structure-borne sound signal S detected by the structure-borne sound receiver 10 is transmitted to a control and evaluation device 12 for further processing.
[0031] In addition to the structure-borne sound signal S, the current flowing in the electrode 4 and / or the voltage applied thereto is measured by means of the measured value receivers 14 a - c and a corresponding measurement signal M is transmitted to the control and evaluation device 12 . In this control and evaluation device, a control signal C is generated, by means of which at least one process variable...
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Abstract
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