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EP1969902A1 - Dispositif de reajustement d'une electrode pour un four metallurgique - Google Patents

Dispositif de reajustement d'une electrode pour un four metallurgique

Info

Publication number
EP1969902A1
EP1969902A1 EP06829378A EP06829378A EP1969902A1 EP 1969902 A1 EP1969902 A1 EP 1969902A1 EP 06829378 A EP06829378 A EP 06829378A EP 06829378 A EP06829378 A EP 06829378A EP 1969902 A1 EP1969902 A1 EP 1969902A1
Authority
EP
European Patent Office
Prior art keywords
electrode
furnace
ring
clamping
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.)
Granted
Application number
EP06829378A
Other languages
German (de)
English (en)
Other versions
EP1969902B1 (fr
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 Demag 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 Demag AG filed Critical SMS Demag AG
Priority to PL06829378T priority Critical patent/PL1969902T3/pl
Priority to SI200631494T priority patent/SI1969902T1/sl
Publication of EP1969902A1 publication Critical patent/EP1969902A1/fr
Application granted granted Critical
Publication of EP1969902B1 publication Critical patent/EP1969902B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; 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; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for 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

  • Apparatus for repositioning an electrode for a metallurgical furnace Apparatus for repositioning an electrode for a metallurgical furnace.
  • the invention relates to a device for resetting 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 electric reduction furnace with open slag bath is known, in particular for the melting of dusty material, with a vertically movable frame arranged above the oven closed with a lid, on which an electrode holder and an electrode follower are arranged.
  • a stage is provided, on which the frame is supported by at least three regulating cylinders, and in that the stage arranged above the furnace lid 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, which is provided with reinforcing plates leading the way from the tension element at least over the entire length of the electrode.
  • BEST ⁇ TJGUNGSKOP8E 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.
  • a surrounding these current conductors arranged in the region of the movement of the electrode relative to a stationary over the furnace vessels mounted gas exhaust hood, the elec- rode sealing against the gas exhaust hood sealing cylinder.
  • 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.
  • detachable, segmented cooling shields connected to each other and extending as far as the clamping device, the coolant circulation of which is connected to the cooling circuit of the sealing cylinder.
  • an electrode detection system for electrothermal see melting furnaces comprising jaws for the conduction of electrical current to an electrode, hydraulic cylinder for the up and down movement of the electrode, said cylinder via an electrode holder and clamping members with the Electrode are connected.
  • 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 of weighing an electrode immersed in the charge of an electric furnace is known from EP 1 068 496 B1.
  • the electrode is moved at least once in the vertical direction, then lifted and recorded the weight of the electrode shortly after lifting in order 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 in relation to the electrode holder in electric melting furnaces, wherein the electrode is equipped with a press ring attached above the electrode holder, which is connected to a double-acting pull arrangement. In this case, the pulling down or pushing up of the press ring takes place by means of combined pneumatic and hydraulic pressure in a closed system.
  • WO 2004/110 104 A1 discloses a direct-current arc furnace with at least one electrode, which is held inside the furnace and can be tracked to compensate for the electrode burn-off, 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 adopted 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 invention is therefore based on the object to make a Nachsetzvorraum so that the device is simplified and the above-mentioned disadvantages are avoided.
  • an improved embodiment of the Nachsetzvoroplasty also the manufacturing cost to be reduced.
  • This object is achieved in that is arranged in a device for repositioning an electrode according to the preamble of claim 1, the mounting ring in the furnace lid arranged.
  • 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 complete device.
  • Fig. 1 in side view a known Nachsetzvortechnisch and
  • Fig. 2 in side view a Nachsetzvoroplasty invention
  • Fig. 3 in sectional side view of a mounting ring as a single part.
  • 1 shows a known Nachsetzvorraum 1, consisting of an upper clamping ring 2, a lower clamping ring 3 and a mounting ring 4 are 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 pressure jaw 7, 8 is pressed against the electrode 5 by means of a spring 9, 10 in order to hold it.
  • lifting cylinders 11, 12 which are arranged vertically between the upper clamping ring 2 and the lower clamping ring 3.
  • 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 shows a repositioning device 1 according to the invention.
  • 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 cylinders 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 is supplied with power over the contact jaws 13 for the entire time. The further resetting or lowering takes place again via the regulating cylinder 6.
  • the socket ring 4 is shown as a single part in a sectional side view. 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)

Abstract

La présente invention concerne un dispositif (1) servant à réajuster une électrode (5) d'un four métallurgique, en particulier d'un four pour le fonctionnement à résistance pourvu d'un couvercle (15) de four. Ledit dispositif est constitué d'un anneau de serrage (3) et d'un anneau de support (4, 14), l'anneau de support (4, 14) étant intégré dans le couvercle (15) du four.
EP06829378A 2006-01-04 2006-12-07 Dispositif de reajustement d'une electrode pour un four metallurgique Not-in-force EP1969902B1 (fr)

Priority Applications (2)

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

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 (fr) 2006-01-04 2006-12-07 Dispositif de reajustement d'une electrode pour un four metallurgique

Publications (2)

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

Family

ID=37845240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829378A Not-in-force EP1969902B1 (fr) 2006-01-04 2006-12-07 Dispositif de reajustement d'une electrode pour un four metallurgique

Country Status (18)

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

Families Citing this family (7)

* 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
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
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
NL251834A (fr) * 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

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Also Published As

Publication number Publication date
US20090010299A1 (en) 2009-01-08
ZA200803597B (en) 2009-02-25
ES2391574T3 (es) 2012-11-27
CN101356856A (zh) 2009-01-28
NZ568884A (en) 2011-06-30
UA91886C2 (ru) 2010-09-10
EP1969902B1 (fr) 2012-10-10
EA200870061A1 (ru) 2008-10-30
AU2006332203A1 (en) 2007-07-12
EA013447B1 (ru) 2010-04-30
KR20080090402A (ko) 2008-10-08
DE102006000737A1 (de) 2007-07-05
PL1969902T3 (pl) 2013-03-29
SI1969902T1 (sl) 2013-02-28
CA2632246C (fr) 2013-11-26
NO20082670L (no) 2008-08-04
JP5094733B2 (ja) 2012-12-12
WO2007076914A1 (fr) 2007-07-12
NO341936B1 (no) 2018-02-26
KR101213977B1 (ko) 2012-12-20
AU2006332203B2 (en) 2012-01-12
CA2632246A1 (fr) 2007-07-12
CN101356856B (zh) 2014-03-05
JP2009522738A (ja) 2009-06-11
BRPI0620909A2 (pt) 2011-11-29

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