EP1913796A1 - Dispositif de refroidissement compose de segments individuels et destine a des electrodes d'un four metallurgique - Google Patents

Dispositif de refroidissement compose de segments individuels et destine a des electrodes d'un four metallurgique

Info

Publication number
EP1913796A1
EP1913796A1 EP06776177A EP06776177A EP1913796A1 EP 1913796 A1 EP1913796 A1 EP 1913796A1 EP 06776177 A EP06776177 A EP 06776177A EP 06776177 A EP06776177 A EP 06776177A EP 1913796 A1 EP1913796 A1 EP 1913796A1
Authority
EP
European Patent Office
Prior art keywords
hinge
cooling device
furnace
individual
segment
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
EP06776177A
Other languages
German (de)
English (en)
Other versions
EP1913796B1 (fr
Inventor
Dieter Borgwardt
Karl-Heinz Kummer
Christian Kempe
Siegfried Bender
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 EP1913796A1 publication Critical patent/EP1913796A1/fr
Application granted granted Critical
Publication of EP1913796B1 publication Critical patent/EP1913796B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H05B7/12—Arrangements for cooling, sealing or protecting 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
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/103—Mountings, supports or terminals with jaws
    • H05B7/105—Mountings, supports or terminals with jaws comprising more than two jaws equally spaced along circumference, e.g. ring holders

Definitions

  • the invention relates to a cooling device for electrodes of a metallurgical furnace, such as reduction furnace, electric arc furnace, induction furnace, etc., which encloses the electrode and consists of individual segments.
  • a metallurgical furnace such as reduction furnace, electric arc furnace, induction furnace, etc.
  • DE 36 30 861 C2 discloses an electrode holder for electric arc or reduction furnaces, with a plurality of electrodes guided through the furnace lid, with cylindrical capsules arranged concentrically with the individual electrodes and with current supply means parallel to a part of their length as current tubes extend to the electrode with its axes on a cylinder concentric to the electrode and thereby occupy only a portion of the cylinder circumference and are arranged at the furnace vessel bottom facing the end to the electrodes contactable contact jaws.
  • each capsule has at least two shell openings which each extend over a part of the circumference in their width. In these jacket openings the coaxial with the capsule guided power pipe sections of the power supply device are arranged and united by embedding, Umgie head or the like.
  • the electrode is enclosed below a gas exhaust hood up to the current-carrying jaws of the cooling device.
  • the removable cooling shields allow easy access to the clamping device or the current-carrying jaws during maintenance.
  • the cooling shields must be removed individually, loosened by screws, pull bolts, use lifting device or similar, etc. This time consuming process affects the production, the furnace runs in the Conti - operation and has an availability of about 97% per year. When loosening and removing the cooling shields may also cause damage to the water-bearing parts.
  • the invention is therefore based on the object to improve the known cooling device so that the access to the electrode is simplified and the above-mentioned disadvantages are avoided.
  • the availability of the furnace should be improved.
  • the invention also relates to a method for pivoting at least one individual segment.
  • the decisive advantage of the cooling device according to the invention is that the one or more individual segments are removed by simply pivoting away from the electrode. A hoist or the like is not needed. The individual segments need not be stored but are attached to the access to the electrode at this or their holding devices.
  • the cooling circuit is maintained by, for example, the cooling water inlet and the cooling water drain via flexible lines. These are designed so that they do not obstruct or limit the pivoting process.
  • the improvements shown reduce oven downtime because maintenance times are reduced.
  • Fig. 1 in a three-dimensional view a cooling device consisting of
  • FIG. 1 shows a cooling device 1, comprising a plurality of individual segments 2, 3, 4, 5.
  • the individual segments 2, 3, 4, 5 are, for example, fastened individually to a hanging frame 6 by at least one hinge 7.
  • additional hinges 7 can also be taken into account.
  • the individual segments 2, 3 are pivoted away from the electrode (not shown) by the hinges 7.
  • each individual segment 2, 3, 4, 5 can be pivoted by a hinge alone.
  • two adjacent individual segments 4, 5 can be articulated by one or more hinges 8, wherein the individual segment 5 is connected to the hanging frame 6 by a hinge 7.
  • the single segment 5 can be connected by means of hinges 8 with a further single segment.
  • a cooling device 1 is shown in plan view, in which all individual segments 2, 3, 4, 5 are individually connected by a hinge 7 with the hanging frame 6.
  • the individual segments 2, 3, 4, 5 are for this purpose formed with a rotary joint 9, to which the hinge 7 is attached.
  • Each individual segment 2, 3, 4, 5 has at least one cooling water inlet 10 and at least one cooling water outlet 11. These are connected via flexible lines (not shown) to a cooling circuit. Alternatively, two adjacent individual segments 2, 3, 4, 5 may have a common cooling circuit.
  • At least one hinge web 12 may be formed telescopically.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Furnace Details (AREA)
EP06776177A 2005-08-10 2006-07-11 Dispositif de refroidissement compose de segments individuels et destine a des electrodes d'un four metallurgique Not-in-force EP1913796B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005037749A DE102005037749A1 (de) 2005-08-10 2005-08-10 Kühlvorrichtung aus Einzelsegmenten für Elektroden eines metallurgischen Ofens
PCT/EP2006/006746 WO2007017031A1 (fr) 2005-08-10 2006-07-11 Dispositif de refroidissement compose de segments individuels et destine a des electrodes d'un four metallurgique

Publications (2)

Publication Number Publication Date
EP1913796A1 true EP1913796A1 (fr) 2008-04-23
EP1913796B1 EP1913796B1 (fr) 2008-11-19

Family

ID=36968253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06776177A Not-in-force EP1913796B1 (fr) 2005-08-10 2006-07-11 Dispositif de refroidissement compose de segments individuels et destine a des electrodes d'un four metallurgique

Country Status (9)

Country Link
US (1) US20090175309A1 (fr)
EP (1) EP1913796B1 (fr)
CN (1) CN101208995B (fr)
AT (1) ATE415070T1 (fr)
BR (1) BRPI0614745A2 (fr)
DE (2) DE102005037749A1 (fr)
NO (1) NO20080546L (fr)
WO (1) WO2007017031A1 (fr)
ZA (1) ZA200710123B (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734244A (en) * 1956-02-14 herres
GB130205A (en) * 1918-09-20 1919-07-31 James Rossiter Hoyle Improvements in or relating to Electric Furnaces.
US1549431A (en) * 1924-05-01 1925-08-11 Beck Erich Sealing device for electrodes of electric furnaces
FR1066070A (fr) * 1951-02-15 1954-06-02 Elektrokemisk As Support d'électrode pour fours de fusion
US2778865A (en) * 1956-01-09 1957-01-22 Elektrokemisk As Suspension mechanism for continuous type electrodes and method of operation
US3898364A (en) * 1974-09-05 1975-08-05 Stanford A Hardin Combined suspension device for holding, contacting, slipping and torquing electric furnace electrodes
JPS57104912U (fr) * 1980-12-17 1982-06-28
FR2552865B1 (fr) * 1983-09-30 1985-12-27 Clecim Sa Four electrique a arc muni de panneaux amovibles
DE4310626C1 (de) * 1993-03-31 1994-06-23 Salice Arturo Spa Scharnier zur gelenkigen Verbindung zweier Teilflügel eines Türflügels
US5406580A (en) * 1993-12-23 1995-04-11 Hatch Associates Ltd. Electrode seal for arc furnaces
RU2392838C2 (ru) * 2004-02-13 2010-06-27 Джузеппе ДЖОРДАНО Предохранительная система, предназначенная для установки на браслете наручных часов

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007017031A1 *

Also Published As

Publication number Publication date
EP1913796B1 (fr) 2008-11-19
ZA200710123B (en) 2008-11-26
US20090175309A1 (en) 2009-07-09
BRPI0614745A2 (pt) 2011-04-12
ATE415070T1 (de) 2008-12-15
CN101208995B (zh) 2013-08-14
WO2007017031A1 (fr) 2007-02-15
DE102005037749A1 (de) 2007-02-15
NO20080546L (no) 2008-02-06
DE502006002143D1 (de) 2009-01-02
CN101208995A (zh) 2008-06-25

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