METHOD FOR OPERATING AN ARC OVEN AND MELTING ASSEMBLY WITH AN ARC OVEN OPERATED ACCORDING TO THIS METHOD

The method involves detecting an impact sound signal (S) entering to a wall of an electric arc furnace (2), and calculating a parameter i.e. measured value, characterizing flicker properties of the furnace from the sound signal, where the furnace comprises electrodes (4a-4c). A process variable of t...

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Bibliographische Detailangaben
Hauptverfasser:	FINK, DIETER, DÖBBELER, ARNO, RIEGER, DETLEF
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING MECHANICAL ENGINEERING OPEN SINTERING OR LIKE APPARATUS OVENS RETORTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	The method involves detecting an impact sound signal (S) entering to a wall of an electric arc furnace (2), and calculating a parameter i.e. measured value, characterizing flicker properties of the furnace from the sound signal, where the furnace comprises electrodes (4a-4c). A process variable of the furnace is controlled based on the calculated parameter. The sound signal is subjected to Fourier transformation, and a measure for low-frequency scrap movement is detected from amplitudes of the transformation when frequency lies below a fundamental frequency. An independent claim is also included for a melting assembly.