EP0080954B1 - Dispositif d'alimentation et de support d'électrodes pour four à arcs - Google Patents

Dispositif d'alimentation et de support d'électrodes pour four à arcs Download PDF

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Publication number
EP0080954B1
EP0080954B1 EP82402192A EP82402192A EP0080954B1 EP 0080954 B1 EP0080954 B1 EP 0080954B1 EP 82402192 A EP82402192 A EP 82402192A EP 82402192 A EP82402192 A EP 82402192A EP 0080954 B1 EP0080954 B1 EP 0080954B1
Authority
EP
European Patent Office
Prior art keywords
electrodes
supply
arms
current
support
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.)
Expired
Application number
EP82402192A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0080954A1 (fr
Inventor
Jean Davene
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.)
Clecim SAS
Original Assignee
Clecim SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9264562&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0080954(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Clecim SAS filed Critical Clecim SAS
Priority to AT82402192T priority Critical patent/ATE19335T1/de
Publication of EP0080954A1 publication Critical patent/EP0080954A1/fr
Application granted granted Critical
Publication of EP0080954B1 publication Critical patent/EP0080954B1/fr
Expired legal-status Critical Current

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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
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/103—Mountings, supports or terminals with jaws

Definitions

  • the present invention relates to a device for supplying electrical energy and for mechanical support of the electrodes of an electric arc furnace intended to equip a steelworks.
  • the device according to the invention allows a simpler manufacture than for these known devices, as well as a reduction in the electrical reactance of this part of the oven, which makes it possible to have, for the same power drawn from the network, a significant increase. of the power of the arcs.
  • It is characterized in that it is equipped with non-magnetic metal electrode support arms having at the same time the function of rigid current supply conductors and the upstream end of which serves as a contact area for the supply cables current.
  • the metal used is stainless steel.
  • the arms are constructed so as to present, on the current path, no sharp angle as well in their section as in their length.
  • each of the three vertical masts (1, 2, 3) carries, conventionally, a support piece (4, 5, 6) wider, provided with a part electrically insulating 7.
  • each support piece (4, 5, 6) carries a horizontal arm (8, 9, 10) of stainless steel, the upstream end (11, 12) of which serves as a contact pad for the cables. 13 for supplying the current, and the downstream end of which is attached to the clamps (14, 15, 16) intended to grip the electrodes.
  • the arms (8, 9, 10) are constructed so as to present, on the current path, no sharp angle. Their section is circular and they are, in the direction of the length, either completely rectilinear, or presenting curves in S.
  • Figure 1 shows one of the two arms, such as arm 8, which is not framed by the other two.
  • arm 8 is rectilinear and its support member (1, 4) arrives at the level of the lower part of the associated clamp 14.
  • Figure 2 shows the "central" arm 9, which is framed by the other two (8, 10, Figure 3).
  • its support member (2, 5) arrives, in a conventional manner, at a level situated above that of the lower part of the associated clamp 15.
  • the mast 2 is therefore higher than the two others.
  • the three clamps (14, 15, 16) being preferably at the same level, the arm 9 has a soft curvature, S-shaped as shown, so that its downstream part is at the same level as the others.
  • non-magnetic metal is essential because these metals have a "skin effect" much less than that presented by non-magnetic metals, such as ordinary steel for example.
  • Kelvin's skin is in fact about thirty times thicker for stainless steel than for ordinary steel.
  • stainless steel leads to electrode arm dimensions which are especially well suited to the desired locations for electric ovens; this metal therefore proves preferable for carrying out the invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Physical Vapour Deposition (AREA)
  • Disintegrating Or Milling (AREA)
EP82402192A 1981-12-01 1982-12-01 Dispositif d'alimentation et de support d'électrodes pour four à arcs Expired EP0080954B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82402192T ATE19335T1 (de) 1981-12-01 1982-12-01 Anschluss- und tragevorrichtung fuer die elektroden eines lichtbogenofens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8122521A FR2517502A1 (fr) 1981-12-01 1981-12-01 Dispositif d'alimentation et de support d'electrodes pour four a arcs
FR8122521 1981-12-01

Publications (2)

Publication Number Publication Date
EP0080954A1 EP0080954A1 (fr) 1983-06-08
EP0080954B1 true EP0080954B1 (fr) 1986-04-16

Family

ID=9264562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82402192A Expired EP0080954B1 (fr) 1981-12-01 1982-12-01 Dispositif d'alimentation et de support d'électrodes pour four à arcs

Country Status (6)

Country Link
EP (1) EP0080954B1 (enrdf_load_stackoverflow)
JP (1) JPS58161293A (enrdf_load_stackoverflow)
AT (1) ATE19335T1 (enrdf_load_stackoverflow)
DE (1) DE3270677D1 (enrdf_load_stackoverflow)
ES (1) ES276272Y (enrdf_load_stackoverflow)
FR (1) FR2517502A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563404A1 (fr) * 1984-04-19 1985-10-25 Stein Heurtey Bras de support pour electrode de four poche
US4682341A (en) * 1984-11-29 1987-07-21 Fuchs Systemtechnik Gmbh Electric arc furnace
DE3601989A1 (de) * 1986-01-23 1987-07-30 Conradty Nuernberg Dreiphasiger lichtbogenofen
JP2543642Y2 (ja) * 1992-10-20 1997-08-13 株式会社ニッコー 電気炉の電極支持装置
DE4236158C1 (de) * 1992-10-20 1994-03-17 Mannesmann Ag Elektrodentragarm für Lichtbogenöfen
DE102014208516A1 (de) 2014-05-07 2015-11-12 Sms Group Gmbh Vorrichtung zum Stützen eines Elektrodenarms einer Hochstromzuführung für einen metallurgischen Ofen
FR3045269A1 (fr) * 2015-04-01 2017-06-16 Clesid Lorber Bras conducteur en avier amagnetique renforce par un materiau a basse resistivite

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494775A (en) 1946-01-31 1950-01-17 Delaware Engineering Corp Arc electrode support

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR783511A (fr) * 1934-03-21 1935-07-15 Système et procédé de suspension d'électrode pour fours électriques à alliagesspéciaux
FR848766A (fr) * 1938-02-14 1939-11-07 Umbra Prodotti Chimici Soc Porte-électrode pour fours électriques notamment pour la production de sulfure de carbone
US3395238A (en) * 1965-05-17 1968-07-30 Northwestern Steel & Wire Comp Power coupling and electrode arrangement for electric furnace
SE322850B (enrdf_load_stackoverflow) * 1965-06-10 1970-04-20 Asea Ab
GB1166148A (en) * 1967-06-06 1969-10-08 United Steel Companies Ltd Electric Arc Furnaces
JPS5150686Y2 (enrdf_load_stackoverflow) * 1973-06-13 1976-12-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494775A (en) 1946-01-31 1950-01-17 Delaware Engineering Corp Arc electrode support

Also Published As

Publication number Publication date
ES276272U (es) 1984-04-16
EP0080954A1 (fr) 1983-06-08
DE3270677D1 (en) 1986-05-22
JPS58161293A (ja) 1983-09-24
ATE19335T1 (de) 1986-05-15
ES276272Y (es) 1984-12-01
FR2517502A1 (fr) 1983-06-03
FR2517502B1 (enrdf_load_stackoverflow) 1984-10-26

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