FR2437760A1 - Electric contact for molten metal, esp. in arc furnaces - where contact has enlarged rear portion contg. several chambers through which coolant is circulated - Google Patents

Electric contact for molten metal, esp. in arc furnaces - where contact has enlarged rear portion contg. several chambers through which coolant is circulated

Info

Publication number
FR2437760A1
FR2437760A1 FR7828173A FR7828173A FR2437760A1 FR 2437760 A1 FR2437760 A1 FR 2437760A1 FR 7828173 A FR7828173 A FR 7828173A FR 7828173 A FR7828173 A FR 7828173A FR 2437760 A1 FR2437760 A1 FR 2437760A1
Authority
FR
France
Prior art keywords
coolant
molten metal
contact
pref
contg
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
FR7828173A
Other languages
French (fr)
Other versions
FR2437760B1 (en
Inventor
Christian Lechevallier
Jean Thebault
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7828173A priority Critical patent/FR2437760A1/en
Publication of FR2437760A1 publication Critical patent/FR2437760A1/en
Application granted granted Critical
Publication of FR2437760B1 publication Critical patent/FR2437760B1/fr
Granted legal-status Critical Current

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
    • H05B7/06—Electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)

Abstract

The electrode consists of two parts, viz. a front part (3) in contact with the molten metal, and a rear part (6) contg. a cooling circuit and possessing a much larger cross-section than part (3) so the surface for heat exchange with the coolant is increased. The internal cooling circuit pref. consists of an axial chamber surrounded by numerous peripheral chambers; and each chamber contains at least one pipe delivering the coolant. Part (6) of the electrode is pref. made of Cu, whereas the front part (3) is made of material with a high m.pt. e.g. steel. Instead of numerous peripheral chambers, one outer ring chamber may be used. Part (3) is pref. fitted with refractory rods or plates projecting into the molten metal to reduce turbulence at the melt/electrode interface. Used esp. as an electrode located in the hearth of an arc furnace using direct current, where the coolant is pref. liq. gas, e.g. carbon dioxide nitrogen or another liq.
FR7828173A 1978-09-29 1978-09-29 Electric contact for molten metal, esp. in arc furnaces - where contact has enlarged rear portion contg. several chambers through which coolant is circulated Granted FR2437760A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7828173A FR2437760A1 (en) 1978-09-29 1978-09-29 Electric contact for molten metal, esp. in arc furnaces - where contact has enlarged rear portion contg. several chambers through which coolant is circulated

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7828173A FR2437760A1 (en) 1978-09-29 1978-09-29 Electric contact for molten metal, esp. in arc furnaces - where contact has enlarged rear portion contg. several chambers through which coolant is circulated

Publications (2)

Publication Number Publication Date
FR2437760A1 true FR2437760A1 (en) 1980-04-25
FR2437760B1 FR2437760B1 (en) 1981-10-02

Family

ID=9213256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828173A Granted FR2437760A1 (en) 1978-09-29 1978-09-29 Electric contact for molten metal, esp. in arc furnaces - where contact has enlarged rear portion contg. several chambers through which coolant is circulated

Country Status (1)

Country Link
FR (1) FR2437760A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652890A1 (en) * 1989-10-11 1991-04-12 Siderurgie Fse Inst Rech ELECTRICAL CONNECTION DEVICE FOR PLACING ON THE WALL OF A METALLURGICAL CONTAINER IN CONTACT WITH A MOLTEN METAL.
EP0472254A2 (en) * 1990-08-23 1992-02-26 MANNESMANN Aktiengesellschaft Metallurgical vessel with metal electrode
EP0682463A1 (en) * 1994-05-11 1995-11-15 DANIELI & C. OFFICINE MECCANICHE S.p.A. Cooled bottom electrode for a direct current electric furnace
DE19608532A1 (en) * 1996-02-09 1997-08-14 Eisenbau Essen Gmbh Cooling the electrodes in an arc furnace during steel production

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652890A1 (en) * 1989-10-11 1991-04-12 Siderurgie Fse Inst Rech ELECTRICAL CONNECTION DEVICE FOR PLACING ON THE WALL OF A METALLURGICAL CONTAINER IN CONTACT WITH A MOLTEN METAL.
EP0423003A1 (en) * 1989-10-11 1991-04-17 Irsid Sa Electrical connecting device to be placed on the wall of a metallurgical vessel and in contact with a molten metal
US5125003A (en) * 1989-10-11 1992-06-23 Francaise Institut De Recherches De La Siderurgie Bottom electrode cooled sleeve for a metallurgical container
EP0472254A2 (en) * 1990-08-23 1992-02-26 MANNESMANN Aktiengesellschaft Metallurgical vessel with metal electrode
DE4026897A1 (en) * 1990-08-23 1992-02-27 Mannesmann Ag Metallurgical vessel for electric arc furnace - has two=part electrode in base with connections for current and cooling water
EP0472254A3 (en) * 1990-08-23 1992-04-29 Mannesmann Aktiengesellschaft Metallurgical vessel with metal electrode
EP0682463A1 (en) * 1994-05-11 1995-11-15 DANIELI & C. OFFICINE MECCANICHE S.p.A. Cooled bottom electrode for a direct current electric furnace
US5651024A (en) * 1994-05-11 1997-07-22 Danieli & C. Officine Meccaniche Spa Cooled bottom electrode for a direct current electric furnace
AU696972B2 (en) * 1994-05-11 1998-09-24 Danieli & C. Officine Meccaniche S.P.A. Cooled bottom electrode for a direct current electric furnace
DE19608532A1 (en) * 1996-02-09 1997-08-14 Eisenbau Essen Gmbh Cooling the electrodes in an arc furnace during steel production

Also Published As

Publication number Publication date
FR2437760B1 (en) 1981-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse