AU7277296A - Bottom electrode for an arc furnace operated with direct current and process for operating the furnace - Google Patents

Bottom electrode for an arc furnace operated with direct current and process for operating the furnace

Info

Publication number
AU7277296A
AU7277296A AU72772/96A AU7277296A AU7277296A AU 7277296 A AU7277296 A AU 7277296A AU 72772/96 A AU72772/96 A AU 72772/96A AU 7277296 A AU7277296 A AU 7277296A AU 7277296 A AU7277296 A AU 7277296A
Authority
AU
Australia
Prior art keywords
furnace
direct current
bottom electrode
operated
operating
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.)
Abandoned
Application number
AU72772/96A
Inventor
Werner Hofmann
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of AU7277296A publication Critical patent/AU7277296A/en
Abandoned legal-status Critical Current

Links

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • C21C2005/5235—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace with bottom 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
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Discharge Heating (AREA)

Abstract

A bottom electrode for an arc furnace operated with direct current consists of two parts made of different materials that may be joined to each other. One wearing part made of a material that is comparable to the molten mass is arranged in the area of the refractory lining of the furnace vessel bottom and one cooling part through which a cooling medium flows projects out of the furnace vessel. The invention is characterised in that the wearing part (22) is inserted in a cylindrical hole (15) arranged in the refractory lining (13) of the furnace vessel bottom (14). The face (23) of the wearing part (22) towards the inside (11) of the furnace vessel is spaced from the inner surface (16) of the furnace bottom (14) by a distance (a). A body (30) made of a refractory material is arranged in the free space (F) formed by face (23), inner surface (16) and the wall of the hole (15). The body (30) has a shape that brakes the movement of the molten mass (S) that flows around it during operation of the furnace.
AU72772/96A 1995-08-04 1996-07-31 Bottom electrode for an arc furnace operated with direct current and process for operating the furnace Abandoned AU7277296A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19529984A DE19529984C1 (en) 1995-08-04 1995-08-04 Arc oven base electrode
DE19529984 1995-08-04
PCT/DE1996/001486 WO1997006653A1 (en) 1995-08-04 1996-07-31 Bottom electrode for an arc furnace operated with direct current and process for operating the furnace

Publications (1)

Publication Number Publication Date
AU7277296A true AU7277296A (en) 1997-03-05

Family

ID=7769522

Family Applications (1)

Application Number Title Priority Date Filing Date
AU72772/96A Abandoned AU7277296A (en) 1995-08-04 1996-07-31 Bottom electrode for an arc furnace operated with direct current and process for operating the furnace

Country Status (14)

Country Link
EP (1) EP0842591B1 (en)
JP (1) JPH11500575A (en)
KR (1) KR19990022946A (en)
CN (1) CN1192319A (en)
AT (1) ATE180620T1 (en)
AU (1) AU7277296A (en)
DE (2) DE19529984C1 (en)
MX (1) MX9800949A (en)
PL (1) PL324863A1 (en)
SI (1) SI9620080A (en)
SK (1) SK13498A3 (en)
TW (1) TW328987B (en)
WO (1) WO1997006653A1 (en)
ZA (1) ZA966551B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019217904A1 (en) 2018-11-26 2020-05-28 Sms Group Gmbh Method for repairing a worn flushing body, a bottom electrode and / or a worn brick lining of a metallurgical vessel
EP3657111B1 (en) 2018-11-26 2024-03-13 SMS Group GmbH Method for repairing a used flushing body, a floor electrode and / or used lining of a metallurgical vessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637632A1 (en) * 1976-08-20 1978-02-23 Schelepov Bottom electrode for plasma arc melting furnace - where pressurised gas zone indicates electrode wear, and acts as safety device
FR2441313A1 (en) * 1978-11-10 1980-06-06 Siderurgie Fse Inst Rech COOLED ELECTRODE FOR CONTACT WITH FUSED METAL
FR2622078B1 (en) * 1987-10-20 1990-03-09 Siderurgie Fse Inst Rech WALL ELECTRODE FOR ELECTRIC METALLURGICAL OVEN
AT401303B (en) * 1993-09-06 1996-08-26 Voest Alpine Ind Anlagen METHOD FOR PRODUCING A FLOOR ANODE FOR A METALLURGICAL VESSEL

Also Published As

Publication number Publication date
SK13498A3 (en) 1998-10-07
WO1997006653A1 (en) 1997-02-20
EP0842591A1 (en) 1998-05-20
ZA966551B (en) 1997-02-18
PL324863A1 (en) 1998-06-22
CN1192319A (en) 1998-09-02
TW328987B (en) 1998-04-01
ATE180620T1 (en) 1999-06-15
KR19990022946A (en) 1999-03-25
JPH11500575A (en) 1999-01-12
MX9800949A (en) 1998-04-30
EP0842591B1 (en) 1999-05-26
DE59602014D1 (en) 1999-07-01
DE19529984C1 (en) 1996-10-31
SI9620080A (en) 1998-02-28

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Legal Events

Date Code Title Description
MK5 Application lapsed section 142(2)(e) - patent request and compl. specification not accepted