EP0344092A3 - Thermal treatment installation for molten metal - Google Patents

Thermal treatment installation for molten metal Download PDF

Info

Publication number
EP0344092A3
EP0344092A3 EP19890730089 EP89730089A EP0344092A3 EP 0344092 A3 EP0344092 A3 EP 0344092A3 EP 19890730089 EP19890730089 EP 19890730089 EP 89730089 A EP89730089 A EP 89730089A EP 0344092 A3 EP0344092 A3 EP 0344092A3
Authority
EP
European Patent Office
Prior art keywords
molten metal
counter
electrode
thermal treatment
treatment installation
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
EP19890730089
Other languages
German (de)
French (fr)
Other versions
EP0344092B1 (en
EP0344092A2 (en
Inventor
Eckart Schunk
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 EP0344092A2 publication Critical patent/EP0344092A2/en
Publication of EP0344092A3 publication Critical patent/EP0344092A3/en
Application granted granted Critical
Publication of EP0344092B1 publication Critical patent/EP0344092B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Discharge Heating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Control Of Resistance Heating (AREA)
  • Tunnel Furnaces (AREA)

Abstract

The invention relates to a thermal treatment installation for molten metal having a metallurgical vessel for receiving the molten metal and a direct-current arc heating device, which is separate or operates as an integrated component and has at least one electrode arranged above the molten metal and at least one counter-electrode in contact with the molten metal. In order to provide a maintenance-free, easily exchangeable installation which permits an automatic, reliable connection of the counter-electrode to the current lead to the energy source, it is proposed that at least one element (30) for transferring the electrical energy to the counter-electrode (22) is provided on the outer casing (11) of the metallurgical vessel (10), and has a surface (31) which supports itself during the heating operation on a surface (41) of a counter-element (40) which is in connection with the electrical energy source (20) and can be positioned by mechanical means (45). <IMAGE>
EP89730089A 1988-05-18 1989-04-03 Thermal treatment installation for molten metal Expired - Lifetime EP0344092B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3817379 1988-05-18
DE3817379A DE3817379C1 (en) 1988-05-18 1988-05-18

Publications (3)

Publication Number Publication Date
EP0344092A2 EP0344092A2 (en) 1989-11-29
EP0344092A3 true EP0344092A3 (en) 1991-01-23
EP0344092B1 EP0344092B1 (en) 1994-06-01

Family

ID=6354870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730089A Expired - Lifetime EP0344092B1 (en) 1988-05-18 1989-04-03 Thermal treatment installation for molten metal

Country Status (8)

Country Link
US (1) US4958358A (en)
EP (1) EP0344092B1 (en)
JP (1) JP2832539B2 (en)
KR (1) KR970008502B1 (en)
AT (1) ATE106652T1 (en)
CA (1) CA1316972C (en)
DE (2) DE3817379C1 (en)
ES (1) ES2054080T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108583C2 (en) * 1991-03-14 1997-06-05 Mannesmann Ag Device for coupling the power supply to a metallurgical vessel
AU2004249313B2 (en) * 2003-06-20 2009-01-15 Acumed Llc Bone plates with intraoperatively tapped apertures
CN101323892B (en) * 2008-07-31 2010-06-09 东北大学 Bottom anode side conductive direct current ladle furnace
CN103394657B (en) * 2013-08-15 2015-05-13 王立臣 Chute provided with thermal radiation heater and application method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1645091A (en) * 1927-10-11 Electric furnace
US3409725A (en) * 1965-04-20 1968-11-05 Penberthy Harvey Larry Furnace electrode assembly
DE3107454A1 (en) * 1980-03-10 1982-01-28 ASEA AB, 72183 Västerås "ARRANGEMENT OF PANS OR PAN OVENS FOR DC CURRENT"
DE3535690A1 (en) * 1985-10-05 1987-04-09 Gutehoffnungshuette Man CONTACT ELECTRODE ARRANGEMENT FOR DC ARC OR RESISTANCE MELTING STOVE
US4686687A (en) * 1986-03-04 1987-08-11 Nippon Steel Corporation Anode system for plasma heating usable in a tundish
EP0235465A1 (en) * 1985-02-11 1987-09-09 Institut De Recherches De La Siderurgie Francaise (Irsid) Electrical connecting device to be arranged in a wall of a metallurgical direct current furnace

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5012062U (en) * 1973-06-05 1975-02-07
JPS6186271A (en) * 1984-10-03 1986-05-01 Mitsubishi Electric Corp Thermal head
DE3701678A1 (en) * 1987-01-22 1988-08-04 Gutehoffnungshuette Man METALLURGICAL TANK, ESPECIALLY ELECTRIC OVEN WITH ONE OR MORE FLOOR ELECTRODES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1645091A (en) * 1927-10-11 Electric furnace
US3409725A (en) * 1965-04-20 1968-11-05 Penberthy Harvey Larry Furnace electrode assembly
DE3107454A1 (en) * 1980-03-10 1982-01-28 ASEA AB, 72183 Västerås "ARRANGEMENT OF PANS OR PAN OVENS FOR DC CURRENT"
EP0235465A1 (en) * 1985-02-11 1987-09-09 Institut De Recherches De La Siderurgie Francaise (Irsid) Electrical connecting device to be arranged in a wall of a metallurgical direct current furnace
DE3535690A1 (en) * 1985-10-05 1987-04-09 Gutehoffnungshuette Man CONTACT ELECTRODE ARRANGEMENT FOR DC ARC OR RESISTANCE MELTING STOVE
US4686687A (en) * 1986-03-04 1987-08-11 Nippon Steel Corporation Anode system for plasma heating usable in a tundish

Also Published As

Publication number Publication date
KR970008502B1 (en) 1997-05-24
DE3817379C1 (en) 1989-06-22
JP2832539B2 (en) 1998-12-09
US4958358A (en) 1990-09-18
CA1316972C (en) 1993-04-27
DE58907738D1 (en) 1994-07-07
ES2054080T3 (en) 1994-08-01
KR890017018A (en) 1989-12-14
EP0344092B1 (en) 1994-06-01
JPH0219429A (en) 1990-01-23
EP0344092A2 (en) 1989-11-29
ATE106652T1 (en) 1994-06-15

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