EP1969902B1 - Vorrichtung zum nachsetzen einer elektrode für einen metallurgischen ofen - Google Patents

Vorrichtung zum nachsetzen einer elektrode für einen metallurgischen ofen Download PDF

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Publication number
EP1969902B1
EP1969902B1 EP06829378A EP06829378A EP1969902B1 EP 1969902 B1 EP1969902 B1 EP 1969902B1 EP 06829378 A EP06829378 A EP 06829378A EP 06829378 A EP06829378 A EP 06829378A EP 1969902 B1 EP1969902 B1 EP 1969902B1
Authority
EP
European Patent Office
Prior art keywords
electrode
furnace
clamping ring
ring
mounting ring
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP06829378A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1969902A1 (de
Inventor
Karl-Heinz Kummer
Jürgen Kunze
Horst-Dieter Borgwardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Siemag AG
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
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Priority to SI200631494T priority Critical patent/SI1969902T1/sl
Priority to PL06829378T priority patent/PL1969902T3/pl
Publication of EP1969902A1 publication Critical patent/EP1969902A1/de
Application granted granted Critical
Publication of EP1969902B1 publication Critical patent/EP1969902B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/20—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • F27D11/10—Disposition of electrodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system

Definitions

  • the invention relates to a device and a method for repositioning an electrode of a metallurgical furnace, in particular a furnace for resistance operation with a furnace cover, consisting of a clamping ring and a mounting ring.
  • an electrode which dips into a metallurgical furnace through an opening in the furnace lid.
  • To seal the opening is in the lid a water-cooled. Ofendeckeidichtung. Above this seal, the device has contact jaws which are pressed against the electrode.
  • an electric reduction furnace with an open slag bath is known, in particular for the melting of dusty Möller, with a above the closed lid with a closed oven vertically movable frame on which an electrode holder and a Elektrodennachsetz observed is arranged.
  • a stage is provided, on which the frame is supported by at least three regulating cylinders, and that the stage arranged above the furnace cover is designed as a maintenance platform, on which a sealing unit is provided per electrode.
  • the sealing unit has components for horizontal and vertical sealing of the free surfaces between electrodes and the electrode passage openings of the lid.
  • a metallurgical furnace is described with a self-baking electrode, with an extending within the electrode along its axis extending over the length of the electrode and carrying them tension element.
  • the tension element projects out of the electrode at the end facing away from the electrode and can be connected to a lockable guide device for carrying and moving the electrode and provided with a tubular shaping device which comprises the electrode at least in the unbaked region and consists of a jacket.
  • the tension element is a tube that is provided with reinforcement plates at least over the entire length of the electrode from the tension element.
  • the electrode is can be centered by a horizontal centering device engaging in the baked area from the outside.
  • the jacket has closed cavities.
  • each electrode is held by a positionally variable holding and Nachsetzvorraum in the vertical direction, at the support ring a the electrode tightly comprehensive support cylinder is attached, the conductor.
  • the device also carries a clamping device with power supply jaws.
  • the jacket of the sealing cylinder is liquid-cooled and extends below the gas extraction hood, in the direction of the furnace vessel surrounding the current conductor.
  • coolant-flowed, segment-like cooling shields are arranged, whose cooling circuit is connected to the cooling circuit of the sealing cylinder.
  • an electrode detection system for electrothermal melting furnaces comprising jaws for the conduction of electric current to an electrode, hydraulic cylinders for the up and down movement of the electrode, said cylinders being connected via an electrode holder and clamping members to the electrode.
  • at least two guide rails are arranged parallel to the electrode, whose upper ends are suspended on a suspension frame and whose lower ends have stops as the lower boundary of the movement path of the current-carrying clamping jaws.
  • a method for weighing an electrode immersed in the charge of an electric furnace is known from US 5,156,062 EP 1 068 496 B1 known.
  • the electrode is moved at least once in the vertical direction, then raised and registering the weight of the electrode shortly after lifting to substantially prevent the influence of the dynamic and static friction between the electrode and the charge of the furnace.
  • DE 1 440 991 describes a method for lowering and lifting electrodes relative to the electrode holder in electric melting furnaces, wherein the electrode is equipped with a pressure ring mounted above the electrode holder, which is in communication with a double-acting pulling arrangement.
  • the pulling down or pushing up of the press ring takes place by means of combined pneumatic and hydraulic pressure in a closed system.
  • a direct current arc furnace with at least one electrode is known, which is held inside the furnace and can be tracked to compensate for the electrode burn, and with a counterelectrode in the furnace, for example a bottom electrode.
  • the entire electrode strand is arranged with an electrode holder and a Vietnamesesetz driving on a furnace platform or a frame above the furnace.
  • the holding and the repositioning of the electrodes is carried out by a Nachsetzvorraum with two clamping rings.
  • the clamping rings are equipped with clamping springs for holding the electrode and hydraulic cylinders for opening the clamping springs.
  • a mounting ring is arranged at the lower end of the electrode. Its integrated contact jaws are used exclusively to supply power to the electrodes.
  • the decisive advantage of the Nachsetzvoroplasty invention is that the function of the two clamping rings of the Nachsetzvoroplasty is transmitted to the mounting ring with its contact jaws.
  • the improvements shown reduce the number of components used, reduce the height of the device for repositioning an electrode, simplify the hydraulic system and therefore reduce the cost of the entire device.
  • FIG. 1 is a known Nachsetzvorraum 1, consisting of an upper clamping ring 2, a lower clamping ring 3 and a mounting ring 4 shown, which enclose an electrode 5.
  • the lower clamping ring 3 is influenced vertically via regulating cylinder 6.
  • at least one pressure jaw 7, 8 is installed in both clamping rings 2, 3, at least one pressure jaw 7, 8 is installed. Each jaw 7, 8 is pressed by means of a spring 9, 10 against the electrode 5 to hold them.
  • lifting cylinders 11, 12 which are arranged vertically between the upper clamping ring 2 and the lower clamping ring 3. To lower the stroke of the lifting cylinder 11, 12 is utilized.
  • the mounting ring 4 surrounding the electrode 5 at the lower end is formed at least with a contact jaw 13, which is pressed against the electrode 5 via a hydraulic cylinder 14 in order to allow a constant current transition.
  • FIG. 2 a repositioning device 1 according to the invention is shown. They are out FIG. 1 known and further used components provided with the same reference numerals.
  • the Nachsetzvoriques 1 a clamping ring 3, which can be moved vertically by means of regulating cylinder 6.
  • the mounting ring 4 is arranged in a furnace lid 15.
  • the lower edge 16 of the mounting ring 4 is formed flush with the lower edge 17 of the furnace lid 15.
  • the regulating cylinder 6 are extended. If the stroke is reached, the electrode 5 is held by the mounting ring 4, the clamping ring 3 is released and moved vertically upwards by means of the regulating cylinder 6. Have the regulating cylinder 6 reaches its starting point, the electrode 5 is again held by the clamping ring 3 and the clamping on the mounting ring 4 is released. The electrode 5, we supplied throughout the time via the contact pads 13 with power. The further resetting or lowering takes place again via the regulating cylinder 6.
  • FIG. 3 is shown in a sectional side view of the mounting ring 4 as a single part.
  • the voltage applied to the electrode 5 contact jaw 13 is enclosed by the mounting ring 14.
  • This unit is surrounded by a sealing cylinder 18 and a guard ring 19 formed thereon.
  • the lower edge 16 and the lower edge 17 of the furnace lid 15 are formed flush.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Discharge Heating (AREA)
EP06829378A 2006-01-04 2006-12-07 Vorrichtung zum nachsetzen einer elektrode für einen metallurgischen ofen Not-in-force EP1969902B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200631494T SI1969902T1 (sl) 2006-01-04 2006-12-07 Naprava za naravnavanje elektrode za metalurško peč
PL06829378T PL1969902T3 (pl) 2006-01-04 2006-12-07 Urządzenie do ustawiania elektrody do pieca metalurgicznego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006000737A DE102006000737A1 (de) 2006-01-04 2006-01-04 Vorrichtung zum Nachsetzen einer Elektrode für einen metallurgischen Ofen
PCT/EP2006/011757 WO2007076914A1 (de) 2006-01-04 2006-12-07 Vorrichtung zum nachsetzen einer elektrode für einen metallurgischen ofen

Publications (2)

Publication Number Publication Date
EP1969902A1 EP1969902A1 (de) 2008-09-17
EP1969902B1 true EP1969902B1 (de) 2012-10-10

Family

ID=37845240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829378A Not-in-force EP1969902B1 (de) 2006-01-04 2006-12-07 Vorrichtung zum nachsetzen einer elektrode für einen metallurgischen ofen

Country Status (18)

Country Link
US (1) US20090010299A1 (no)
EP (1) EP1969902B1 (no)
JP (1) JP5094733B2 (no)
KR (1) KR101213977B1 (no)
CN (1) CN101356856B (no)
AU (1) AU2006332203B2 (no)
BR (1) BRPI0620909A2 (no)
CA (1) CA2632246C (no)
DE (1) DE102006000737A1 (no)
EA (1) EA013447B1 (no)
ES (1) ES2391574T3 (no)
NO (1) NO341936B1 (no)
NZ (1) NZ568884A (no)
PL (1) PL1969902T3 (no)
SI (1) SI1969902T1 (no)
UA (1) UA91886C2 (no)
WO (1) WO2007076914A1 (no)
ZA (1) ZA200803597B (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012224470A1 (de) 2012-07-27 2014-01-30 Sms Siemag Ag Vorrichtung und Verfahren zum Nachsetzen einer Elektrode für einen metallurgischen Ofen
DE102013224552A1 (de) 2013-11-29 2015-06-03 Sms Siemag Ag Vorrichtung und Verfahren zum Nachsetzen einer Elektrode für einen metallurgischen Ofen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200458281Y1 (ko) 2009-08-27 2012-01-31 현대제철 주식회사 전기로 마스터 실린더용 지그 구조체
US9036309B2 (en) 2010-09-16 2015-05-19 General Electric Company Electrode and plasma gun configuration for use with a circuit protection device
US8270139B2 (en) 2010-09-16 2012-09-18 General Electric Company Adjustable arc electrode assembly and method of assembling
DE102012209733A1 (de) * 2012-06-11 2013-12-12 Sgl Carbon Se Verfahren und Einrichtung zur Bestimmung des Verbrauchs an Elektrodenmaterial beim Betrieb eines Elektroofens
CN113862487A (zh) * 2021-08-25 2021-12-31 山东莱锻机械股份有限公司 一种方便上料的真空电渣炉

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US2243096A (en) * 1939-06-29 1941-05-27 Stanford A Hardin Electrode seal
CH254393A (de) * 1944-06-16 1948-04-30 Norske Elektrokemisk Ind As Geschlossener elektrischer Schmelzofen.
CH326753A (de) * 1953-12-05 1957-12-31 Elektrokemisk As Elektrodenfassung
US2871278A (en) * 1955-10-12 1959-01-27 Elektrokemisk As Arrangement for electric smelting furnaces
US2982804A (en) * 1958-11-06 1961-05-02 Demag Electrometallurgie G M B Electric arc furnaces
NL121762C (no) * 1959-05-25
US3459868A (en) * 1967-06-27 1969-08-05 Max P Schlienger Arc furnace with adjustable electrode suspension
DE1790172A1 (de) * 1968-09-23 1972-02-03 Sigri Elektrographit Gmbh Hohlelektrode aus Kohle- oder Graphit
SU462319A1 (ru) * 1973-05-18 1975-02-28 Предприятие П/Я Г-4696 Уплотнение электрода в своде дуговой печи
DE2608279B2 (de) * 1976-02-28 1978-02-16 Demag Ag, 4100 Duisburg Verfahren zum einschmelzen von stahl aus schrott im elektroofen
NO151105C (no) * 1982-12-03 1985-02-06 Elkem As Elektrodeholdersystem
IS621B6 (is) * 1985-09-22 1967-03-11 Fiskeridirektoratets Kjemisk-Tekniske Forskningsinstitutt Aðferð til þess að frysta matvæli svo og tæki tilþess að framkvæma aðferðina.
CN2171968Y (zh) * 1993-10-07 1994-07-13 唐建生 电炉电极机械抱紧调节装置
DE4342498C2 (de) * 1993-12-07 1995-09-07 Mannesmann Ag Verfahren und Einrichtung zur Regelung der Position der Spitze einer Elektroofen-Elektrode
DE4342511C2 (de) * 1993-12-08 1996-02-08 Mannesmann Ag Elektroinduktionsofen mit vertikal bewegbarem Rahmen
NO306439B1 (no) * 1998-03-31 1999-11-01 Elkem Materials Veiing av forbrukbare elektroder i elektriske smelteovner
DE10325169A1 (de) * 2003-06-04 2004-12-23 Sms Demag Ag Gleichstrom-Lichtbogenofen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012224470A1 (de) 2012-07-27 2014-01-30 Sms Siemag Ag Vorrichtung und Verfahren zum Nachsetzen einer Elektrode für einen metallurgischen Ofen
WO2014016151A1 (de) 2012-07-27 2014-01-30 Sms Siemag Ag Vorrichtung und verfahren zum nachsetzen einer elektrode für einen metallurgischen ofen
DE102013224552A1 (de) 2013-11-29 2015-06-03 Sms Siemag Ag Vorrichtung und Verfahren zum Nachsetzen einer Elektrode für einen metallurgischen Ofen

Also Published As

Publication number Publication date
BRPI0620909A2 (pt) 2011-11-29
PL1969902T3 (pl) 2013-03-29
AU2006332203B2 (en) 2012-01-12
EP1969902A1 (de) 2008-09-17
JP5094733B2 (ja) 2012-12-12
NO341936B1 (no) 2018-02-26
CA2632246A1 (en) 2007-07-12
DE102006000737A1 (de) 2007-07-05
EA013447B1 (ru) 2010-04-30
KR101213977B1 (ko) 2012-12-20
JP2009522738A (ja) 2009-06-11
ZA200803597B (en) 2009-02-25
WO2007076914A1 (de) 2007-07-12
CA2632246C (en) 2013-11-26
KR20080090402A (ko) 2008-10-08
NZ568884A (en) 2011-06-30
UA91886C2 (ru) 2010-09-10
EA200870061A1 (ru) 2008-10-30
US20090010299A1 (en) 2009-01-08
CN101356856B (zh) 2014-03-05
SI1969902T1 (sl) 2013-02-28
AU2006332203A1 (en) 2007-07-12
ES2391574T3 (es) 2012-11-27
CN101356856A (zh) 2009-01-28
NO20082670L (no) 2008-08-04

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