RU99126809A - METHOD FOR DETERMINING THE POSITION OF THE OPERATING END OF AN ELECTRODE FOR CONSUMABLE ELECTRODES USED IN ELECTRIC FURNACE - Google Patents

METHOD FOR DETERMINING THE POSITION OF THE OPERATING END OF AN ELECTRODE FOR CONSUMABLE ELECTRODES USED IN ELECTRIC FURNACE

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Publication number
RU99126809A
RU99126809A RU99126809/02A RU99126809A RU99126809A RU 99126809 A RU99126809 A RU 99126809A RU 99126809/02 A RU99126809/02 A RU 99126809/02A RU 99126809 A RU99126809 A RU 99126809A RU 99126809 A RU99126809 A RU 99126809A
Authority
RU
Russia
Prior art keywords
electrode
voltage
furnace
points
working end
Prior art date
Application number
RU99126809/02A
Other languages
Russian (ru)
Other versions
RU2179287C2 (en
Inventor
Хелль КАЛЬГРАФ
Гуннар МЕРКЕСДАЛЬ
Рагнар Тронстад
Original Assignee
Элкем Аса
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NO981210A external-priority patent/NO306836B1/en
Application filed by Элкем Аса filed Critical Элкем Аса
Publication of RU99126809A publication Critical patent/RU99126809A/en
Application granted granted Critical
Publication of RU2179287C2 publication Critical patent/RU2179287C2/en

Links

Claims (4)

1. Способ определения положения рабочего конца электрода для расходуемых электродов в электроплавильных печах, указанные электроды погружены в загрузку печи, отличающийся тем, что напряжение между двумя геометрически смещенными точками на внешней поверхности стальной стенки резервуара печи измеряют во время работы печи, причем указанные точки располагают настолько близко насколько возможно к электроду, для которого положение рабочего конца электрода должно быть определено, и настолько далеко насколько возможно - от других электродов в печи, и тем, что ток, подаваемый на электрод, для которого положение рабочего конца должно быть определено, регистрируют в то же время, когда измеряют напряжение между двумя точками, после чего вычисляют разность между измеренным напряжением между двумя точками и током электрода, и где абсолютное значение указанной разности увеличивается, когда положение рабочего конца электрода повышается, и понижается, когда абсолютное значение указанной разности уменьшается.1. The method of determining the position of the working end of the electrode for consumable electrodes in electric melting furnaces, these electrodes are immersed in the furnace charge, characterized in that the voltage between two geometrically offset points on the outer surface of the steel wall of the furnace tank is measured during operation of the furnace, and these points are positioned so as close as possible to the electrode, for which the position of the working end of the electrode must be determined, and as far as possible from other electrodes in the furnace, and by the fact that the current supplied to the electrode, for which the position of the working end is to be determined, is recorded at the same time as the voltage between two points is measured, after which the difference between the measured voltage between the two points and the electrode current is calculated, and where the absolute value of the specified difference increases when the position of the working end of the electrode increases, and decreases when the absolute value of the specified difference decreases. 2. Способ по п.1, отличающийся тем, что положение рабочего конца электрода определяют согласно формуле:
Etp = RP + b (a x напряжение - ток электрода),
где Etp = положение рабочего конца электрода,
RP = фиксированная опорная точка на печи,
напряжение = напряжению, измеренному между двумя точками на стальном резервуаре печи, и где а и b - константы, которые должны быть установлены для каждого электрода.2. The method according to claim 1, characterized in that the position of the working end of the electrode is determined according to the formula:
Etp = RP + b (ax voltage - electrode current),
where Etp = position of the working end of the electrode,
RP = fixed reference point on the furnace,
voltage = voltage measured between two points on the steel tank of the furnace, and where a and b are the constants that must be set for each electrode. 3. Способ по п. 1, отличающийся тем, что две точки снаружи стальной стенки резервуара печи, между которыми измеряют напряжение, располагают на вертикальной линии. 3. The method according to p. 1, characterized in that two points outside the steel wall of the furnace tank, between which the voltage is measured, are placed on a vertical line. 4. Способ по п. 1, отличающийся тем, что две точки снаружи стальной стенки резервуара печи, между которыми измеряют напряжение, располагают на горизонтальной линии. 4. The method according to p. 1, characterized in that two points outside the steel wall of the furnace tank, between which the voltage is measured, are placed on a horizontal line.
RU99126809/02A 1998-03-18 1999-03-08 Method for determination of position of electrode working and for consumable electrodes used in electric melting furnaces RU2179287C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO981210A NO306836B1 (en) 1998-03-18 1998-03-18 Method for determining tip position for consumable electrodes used in electric furnaces
NO19981210 1998-03-18

Publications (2)

Publication Number Publication Date
RU99126809A true RU99126809A (en) 2001-09-20
RU2179287C2 RU2179287C2 (en) 2002-02-10

Family

ID=19901809

Family Applications (1)

Application Number Title Priority Date Filing Date
RU99126809/02A RU2179287C2 (en) 1998-03-18 1999-03-08 Method for determination of position of electrode working and for consumable electrodes used in electric melting furnaces

Country Status (11)

Country Link
US (1) US6178191B1 (en)
EP (1) EP0996844A1 (en)
CN (1) CN1238682C (en)
AU (1) AU2964599A (en)
BR (1) BR9904909A (en)
CA (1) CA2288701A1 (en)
NO (1) NO306836B1 (en)
RU (1) RU2179287C2 (en)
UA (1) UA46152C2 (en)
WO (1) WO1999047873A1 (en)
ZA (1) ZA991764B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ755800A0 (en) * 2000-05-17 2000-06-08 Qni Technology Pty Ltd Method for measurement of a consumable electrode
IT1396173B1 (en) * 2009-03-25 2012-11-16 Tenova Spa MEASUREMENT EQUIPMENT OF THE POSITION OF THE ELECTRODES IN AN ELECTRIC OVEN
WO2017182902A1 (en) 2016-04-21 2017-10-26 Glencore Operation South Africa (Proprietary) Limited An arc smelting system and method of monitoring the length of an electrode in said system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619464A (en) * 1970-02-03 1971-11-09 Boehler & Co Ag Geb Apparatus for electroslag remelting of metals and in particular steel
DE2103216C3 (en) 1971-01-25 1978-03-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for determining the immersion depth of electrodes in a reduction furnace
US4096344A (en) * 1976-09-30 1978-06-20 Westinghouse Electric Corp. Electric arc furnace control system
GB2001461B (en) * 1977-07-21 1982-01-13 Leybold Heraeus Gmbh & Co Kg Arrangement for controlling the depth of immersion of self-consuming electrodes in electro-slag remelting furnaces
JPS56500178A (en) * 1979-01-31 1981-02-19
US5115447A (en) * 1991-01-10 1992-05-19 Ucar Carbon Technology Corporation Arc furnace electrode control
DE4342498C2 (en) * 1993-12-07 1995-09-07 Mannesmann Ag Method and device for controlling the position of the tip of an electric furnace electrode
US5930284A (en) * 1997-01-15 1999-07-27 Sandia Corporation Multiple input electrode gap controller

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