ZA966551B - Bottom electrode for an arc furnace operated with direct current, and a method for operating the furnace. - Google Patents

Bottom electrode for an arc furnace operated with direct current, and a method for operating the furnace.

Info

Publication number
ZA966551B
ZA966551B ZA9606551A ZA966551A ZA966551B ZA 966551 B ZA966551 B ZA 966551B ZA 9606551 A ZA9606551 A ZA 9606551A ZA 966551 A ZA966551 A ZA 966551A ZA 966551 B ZA966551 B ZA 966551B
Authority
ZA
South Africa
Prior art keywords
furnace
direct current
bottom electrode
operated
operating
Prior art date
Application number
ZA9606551A
Inventor
Werner Hofmann
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 ZA966551B publication Critical patent/ZA966551B/en

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

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.
ZA9606551A 1995-08-04 1996-08-01 Bottom electrode for an arc furnace operated with direct current, and a method for operating the furnace. ZA966551B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19529984A DE19529984C1 (en) 1995-08-04 1995-08-04 Arc oven base electrode

Publications (1)

Publication Number Publication Date
ZA966551B true ZA966551B (en) 1997-02-18

Family

ID=7769522

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9606551A ZA966551B (en) 1995-08-04 1996-08-01 Bottom electrode for an arc furnace operated with direct current, and a method 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
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
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

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
DE59602014D1 (en) 1999-07-01
WO1997006653A1 (en) 1997-02-20
EP0842591A1 (en) 1998-05-20
ATE180620T1 (en) 1999-06-15
EP0842591B1 (en) 1999-05-26
JPH11500575A (en) 1999-01-12
DE19529984C1 (en) 1996-10-31
KR19990022946A (en) 1999-03-25
TW328987B (en) 1998-04-01
CN1192319A (en) 1998-09-02
PL324863A1 (en) 1998-06-22
SK13498A3 (en) 1998-10-07
AU7277296A (en) 1997-03-05
SI9620080A (en) 1998-02-28
MX9800949A (en) 1998-04-30

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