EP1183914B1 - Recipients de fusion dotes d'une electrode de masse refroidie - Google Patents

Recipients de fusion dotes d'une electrode de masse refroidie Download PDF

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Publication number
EP1183914B1
EP1183914B1 EP00935164A EP00935164A EP1183914B1 EP 1183914 B1 EP1183914 B1 EP 1183914B1 EP 00935164 A EP00935164 A EP 00935164A EP 00935164 A EP00935164 A EP 00935164A EP 1183914 B1 EP1183914 B1 EP 1183914B1
Authority
EP
European Patent Office
Prior art keywords
cooling
bottom electrode
plate
contact elements
carrier plate
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.)
Expired - Lifetime
Application number
EP00935164A
Other languages
German (de)
English (en)
Other versions
EP1183914A1 (fr
Inventor
Manfred Schubert
Peter Starke
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
Publication of EP1183914A1 publication Critical patent/EP1183914A1/fr
Application granted granted Critical
Publication of EP1183914B1 publication Critical patent/EP1183914B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F27B3/24—Cooling arrangements
    • 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
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/03—Electrodes
    • 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
    • H05B7/06—Electrodes
    • 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
    • H05B7/12—Arrangements for cooling, sealing or protecting 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

Definitions

  • the invention relates to a bottom electrode for metallurgical melting vessels such as arc melting furnaces, resistance melting furnaces or ladle furnaces, with contact elements, which ensure the electrical power supply through the refractory lining of the melting vessel into the melt, wherein below a support plate at a distance a cooling plate is arranged, whereby one with a cooling medium permeable cooling space is formed.
  • EP 0 058 817 B1 describes a bottom electrode with a support plate arranged below the bottom of the furnace, with a base plate being attached at a distance from the support plate, to which the electrode necks are directly connected.
  • the space between the support plate and the base plate has a central air inlet opening to the star-shaped curved baffles are arranged. In this way, air circulation is brought about for cooling in a simple manner.
  • the cooling fins are also attached to the cooling plate, for example by welding, so that in addition to the improved heat dissipation additionally has the advantage of already installing the power connection to the cooling plate. Here then take over the cooling fins power transport to Support plate.
  • the contact elements are formed in two parts of commercial profile iron with a thicker base, the length of which can be adapted to the particular conditions of use and is preferably 200 to 400 mm, and serving as a wearing part thinner upper part, which dips into the melt and the actual electrical Connects to the melt.
  • This thin top is welded onto the thicker part.
  • the length of the upper part depends on the lining thickness and is selected so that the upper end dips into the melt and thus establishes the electrical connection to the melt. After Verschältice of refractory material and shell the old weld is separated and welded a new shell.
  • the heat input into the carrier plate is advantageously improved, and the separation between this reinforced lower part and the wearable upper part and its renewal are simplified.
  • a gaseous or a liquid medium can be used as a cooling medium, which flows through the cooling space. It is possible according to the invention, in particular when using a liquid as a cooling medium to use the cooling medium at the same time for cooling the furnace vessel, which can be shared with advantage, for example, necessary funding; However, the prerequisite is that the furnace vessel is designed with a double jacket.
  • the figure shows a bottom electrode 1 with a cooling space 4 according to the invention.
  • a cooling plate 5 is arranged at a distance, whereby formed between the support plate 2 and the cooling plate 5 of the cooling chamber 4, which can be flowed through by a preferably fluid cooling medium.
  • cooling ribs 6 are welded to the carrier plate 2, by means of which the cooling surface is significantly enlarged and the cooling effect is correspondingly increased.
  • the cooling fins 6 are also firmly connected to the cooling plate 5, whereby an additional cooling effect is achieved. Since there is thus a direct metallic contact between the cooling plate 5 and the carrier plate 2, this contact can also be used for power line.
  • the current is supplied via a power supply line 9 via a pipe 8 arranged on the contact jaw 7 of the bottom electrode 1.
  • the current flows from the contact jaw 7 via the tube 8 to the cooling plate 5, on via the cooling fins 6 to the support plate 2, from which the contact elements 3 produce the current flow to the melt.
  • the cooling medium can be fed centrally from below through the tube 8 to the cooling chamber 4 and then discharged via lateral openings 10 again; but it is also possible to use the side openings 10 for the supply and discharge of the cooling medium.
  • the cooling fins 6 are shaped and aligned accordingly to achieve the greatest possible cooling effect at the lowest possible flow resistance.
  • the invention is not limited to the illustrated embodiment, but is also applicable to other embodiments of bottom electrodes, as far as the constructive possibility exists to provide a cooling space by arranging a cooling plate.

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)
  • Resistance Heating (AREA)
  • Processing Of Solid Wastes (AREA)
  • Discharge Heating (AREA)

Claims (5)

  1. Electrode de masse pour des conteneurs de fusion métallurgiques, tels que des fours à l'arc, des fours de fusion à résistance ou des fours à poches avec des éléments de contact (3) qui assurent la conduction de courant électrique dans la masse en fusion, à travers la chemise de four réfractaire du conteneur de fusion, sous une plaque support (2), une plaque de refroidissement (5) étant disposée avec un écart pour former un espace de refroidissement (4) dans lequel peut circuler un réfrigérant,
    caractérisé en ce que les éléments de contact (3) sont reliés par leur extrémité inférieure avec la plaque support (2) et sont conçus en deux parties.
  2. Electrode de masse selon la revendication 1,
    caractérisée en ce que les éléments de contact (3) sont en fer à profilés disponible dans le commerce, la partie inférieure (3') étant fabriquée de préférence jusqu'à une longueur de 200 à 400 mm en un profilé plus épais avec des épaisseurs de paroi de préférence entre 6 et 10 mm, par exemple IPB 100, sur lequel est soudée la partie supérieure plus mince (3"), de préférence avec des épaisseurs de paroi entre 2 et 5 mm.
  3. Electrode de masse selon la revendication 1 ou 2,
    caractérisée en ce que sur la plaque support (2) sont fixées des ailettes de refroidissement (6) qui saillissent dans l'espace de refroidissement (4).
  4. Electrode de masse selon l'une quelconque ou plusieurs des revendications 1 à 3,
    caractérisée en ce que les ailettes de refroidissement (6) sont de surcroît fixées sur la plaque de refroidissement (5), pour que lors d'un branchement électrique sur la plaque de refroidissement (5), les ailettes de refroidissement (6) créent le contact électrique vers la plaque support (2).
  5. Electrode de masse selon l'une quelconque ou plusieurs des revendications 1 à 4,
    caractérisée en ce que le réfrigérant est utilisable simultanément pour refroidir le creuset du four.
EP00935164A 1999-06-04 2000-06-03 Recipients de fusion dotes d'une electrode de masse refroidie Expired - Lifetime EP1183914B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19925554A DE19925554A1 (de) 1999-06-04 1999-06-04 Bodenelektrode für metallurgische Schmelzgefäße
DE19925554 1999-06-04
PCT/EP2000/005068 WO2000076275A1 (fr) 1999-06-04 2000-06-03 Recipients de fusion dotes d'une electrode de masse refroidie

Publications (2)

Publication Number Publication Date
EP1183914A1 EP1183914A1 (fr) 2002-03-06
EP1183914B1 true EP1183914B1 (fr) 2007-02-21

Family

ID=7910202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00935164A Expired - Lifetime EP1183914B1 (fr) 1999-06-04 2000-06-03 Recipients de fusion dotes d'une electrode de masse refroidie

Country Status (15)

Country Link
US (1) US6728291B1 (fr)
EP (1) EP1183914B1 (fr)
JP (1) JP2003501791A (fr)
KR (1) KR20020016819A (fr)
CN (1) CN1175712C (fr)
AT (1) ATE354929T1 (fr)
BR (1) BR0011242A (fr)
CA (1) CA2376150A1 (fr)
DE (2) DE19925554A1 (fr)
EG (1) EG22333A (fr)
ES (1) ES2281345T3 (fr)
MX (1) MXPA01012412A (fr)
PL (1) PL352313A1 (fr)
TR (1) TR200103501T2 (fr)
WO (1) WO2000076275A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1568253A1 (fr) * 2002-12-03 2005-08-31 Schott AG Dispositif chauffant a electrode pour le chauffage par conduction de masses fondues
CN100505953C (zh) * 2002-12-03 2009-06-24 肖特股份公司 有用于导电地加热熔体的电极的加热设备
DE202005012571U1 (de) * 2005-08-10 2005-10-27 Sms Demag Ag Kühlvorrichtung für Elektroden eines metallurgischen Ofens
FR2891981B1 (fr) * 2005-10-10 2008-12-05 Fai Production Soc Par Actions Plaque de contact pour electrode de four d'electrometallurgie et procede pour la fabrication d'une telle plaque
DE102006027648A1 (de) * 2006-06-13 2007-12-20 Arndt Dung Wandungselemente für einen wassergekühlten, stromführenden Elektrodentragarm und aus solchen Wandungselementen bestehende Elektrodentragarme
CN106065424A (zh) * 2016-08-25 2016-11-02 陈学红 一种高炉冷却壁
CN112902674B (zh) * 2021-01-26 2024-04-30 中冶赛迪工程技术股份有限公司 风冷触针式底电极
CN115127353A (zh) * 2022-06-15 2022-09-30 中冶赛迪工程技术股份有限公司 一种长寿命横向风冷直流电弧炉底电极

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE410654B (sv) * 1978-02-28 1979-10-22 Asea Ab Likstromsljusbagsugn med minst en katodiskt ansluten elektrod och minst en bottnkontakt
DE3106741C2 (de) 1981-02-24 1983-06-16 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Kontaktelektroden-Anordnung für Lichtbogen- oder Widerstandsschmelzofen
SE450857B (sv) * 1985-02-21 1987-08-03 Asea Ab Forfarande for uppbyggnad av ljusbagslikstromsugnar eller -skenkar
US5052018A (en) * 1989-10-12 1991-09-24 Deutsche Voest-Alpine Industrieanlagen Gmbh Anode for a direct current arc furnace
DE4130397A1 (de) * 1991-09-12 1993-03-18 Kortec Ag Gleichstromofen mit einer herdelektrode, herdelektrode und elektrodenblock sowie betriebsverfahren fuer diesen ofen
DE4424009A1 (de) * 1994-07-08 1996-01-11 Gutehoffnungshuette Man Bodenelektrode für einen Gleichstrom-Lichtbogenofen
DE19543374A1 (de) * 1995-11-21 1997-05-22 Gutehoffnungshuette Man Bodenelektrode für einen Gleichstrom-Lichtbogenofen

Also Published As

Publication number Publication date
EP1183914A1 (fr) 2002-03-06
US6728291B1 (en) 2004-04-27
WO2000076275A1 (fr) 2000-12-14
PL352313A1 (en) 2003-08-11
EG22333A (en) 2002-12-31
TR200103501T2 (tr) 2002-04-22
DE19925554A1 (de) 2000-12-07
CA2376150A1 (fr) 2000-12-14
ES2281345T3 (es) 2007-10-01
CN1175712C (zh) 2004-11-10
CN1365593A (zh) 2002-08-21
KR20020016819A (ko) 2002-03-06
BR0011242A (pt) 2004-11-03
DE50014089D1 (de) 2007-04-05
JP2003501791A (ja) 2003-01-14
MXPA01012412A (es) 2002-07-30
ATE354929T1 (de) 2007-03-15

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