METHOD FOR DETERMINING MEASURE OF LUMPINESS OF SOLID MATERIAL IN ELECTRIC ARC FURNACE; ELECTRIC ARC FURNACE, SIGNAL PROCESSING DEVICE, AS WELL AS PROGRAMME CODE AND DATA CARRIER

FIELD: metallurgy.SUBSTANCE: according to a method for determining lumpiness for solid material, and namely scrap metal, in an electric arc furnace there determined is current of an electrode, which is supplied to electrode (3a, 3b, 3c) for formation of an electric arc between electrode (3a, 3b, 3c)...

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Bibliographische Detailangaben
Hauptverfasser:	DEBBELER ARNO, MACHULLAT TOMAS, RIGER DETLEF, KRJUGER KLAUS
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLASTING CHEMISTRY 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 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 METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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Zusammenfassung:	FIELD: metallurgy.SUBSTANCE: according to a method for determining lumpiness for solid material, and namely scrap metal, in an electric arc furnace there determined is current of an electrode, which is supplied to electrode (3a, 3b, 3c) for formation of an electric arc between electrode (3a, 3b, 3c) and solid material. Measure of effective value of certain current of the electrode is determined from certain current signal (I(t)). At that, from certain electrode current I(t)) there determined (32) is current constituent referring to frequency range of certain current of electrode (3a, 3b, 3c), and as value of lumpiness (M) there formed is ratio of current constituent and effective value.EFFECT: improving forecasting accuracy of state of solid material in an electric arc furnace.11 cl, 5 dwg Изобретение относится к области получения металла в электродуговой печи. Технический результат - повышение точности прогнозирования состояния твердого материала в электродуговой печи. Согласно способу определения кусковатости для твердого материала, в особенности скрапа, в электродуговой печи определяют ток электрода, подведенный к электроду (3а, 3b, 3с) для образования электрической дуги между электродом (3а, 3b, 3с) и твердым материалом. При этом из определенного сигнала тока (I(t)) электрода определяют меру эффективного значения определенного тока электрода. Причем из определенного тока (I(t)) электрода определяют (32) составляющую тока, относящуюся к частотному диапазону определенного тока электрода (3а, 3b, 3с), а в качестве значения кусковатости (М) формируют отношение составляющей тока и эффективного значения. 4 н. и 7 з.п. ф-лы, 5 ил.