EP2883418B1 - Dispositif et procédé de changement d'au moins une électrode d'un récipient pour fonderie - Google Patents

Dispositif et procédé de changement d'au moins une électrode d'un récipient pour fonderie Download PDF

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Publication number
EP2883418B1
EP2883418B1 EP13762769.1A EP13762769A EP2883418B1 EP 2883418 B1 EP2883418 B1 EP 2883418B1 EP 13762769 A EP13762769 A EP 13762769A EP 2883418 B1 EP2883418 B1 EP 2883418B1
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EP
European Patent Office
Prior art keywords
electrode
station
lifting
pivoting
change
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.)
Not-in-force
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EP13762769.1A
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German (de)
English (en)
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EP2883418A1 (fr
Inventor
Markus Dorndorf
Michel HEIN
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Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Publication of EP2883418A1 publication Critical patent/EP2883418A1/fr
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Publication of EP2883418B1 publication Critical patent/EP2883418B1/fr
Not-in-force legal-status Critical Current
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    • 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
    • H05B7/101—Mountings, supports or terminals at head of electrode, i.e. at the end remote from the arc
    • H05B7/102—Mountings, supports or terminals at head of electrode, i.e. at the end remote from the arc specially adapted for consumable 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/4973—Replacing of defective part
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble

Definitions

  • the invention relates to a device and a method for changing at least one electrode of a melt metallurgical vessel, which has a receptacle for melt and for covering the receptacle a vessel lid with an opening per electrode, wherein the at least one electrode is positionable by means of at least one electrode holder and the vessel lid in that at least one electrode and the at least one electrode holder can furthermore be raised by means of a lifting and pivoting device and can be pivoted laterally about a vertical axis of rotation.
  • the rapid replacement of spent electrodes is essential for an energy-efficient and time-saving smelting process in a smelting metallurgical vessel, in particular an electric arc furnace, and is increasingly coming into focus with the ever-increasing performance requirements for smelting plants and the continuous increase in energy.
  • Electrical energy is introduced into the molten material, usually in the form of metal scrap, via the electrodes, whereby the electrode material, which usually consists of graphite, is consumed.
  • melt metallurgical plant here comprises an electric arc furnace system with a liftable and pivotable furnace lid and one to two melt vessels.
  • a cassette rotatable about its vertical center axis, which has cylindrical openings for receiving used electrodes and displaced therefrom further cylindrical openings for holding new electrodes.
  • the cassette is here together with its central rotating mechanism and several below the cassette arranged and engaging in the cylindrical openings lifting cylinders for lowering the used electrode pieces and for lifting the new electrodes completely in the pivoting range of the furnace lid.
  • DE 20 50 418 A1 is a device for electro-melting of Abschmelzelektroden with multiple height-adjustable electrode support arms - which are pivotable in the horizontal direction - shown.
  • the object is for the device for changing at least one electrode of a melt metallurgical vessel, which has a receptacle for melt and to cover the receiving device a vessel lid with an opening per electrode, wherein the at least one electrode is positionable by means of at least one electrode holder and the vessel lid, the at least one electrode and the at least one electrode holder by means of a lifting and pivoting device liftable about a vertical axis of rotation are laterally pivoted, solved in that in addition to the receiving device at least two electrode changing stations are provided, which are arranged either side by side in a pivoting range of the lifting-pivoting device on a circular path around the axis of rotation or alternately into a Pivoting range of the hub pivoting device can be brought to the circular path about the axis of rotation.
  • the at least two electrode change stations are arranged next to one another in a swivel range of the lifting / swiveling device on a circular path around the axis of rotation, then only the electrode (s) and the electrode holder move over them, optionally also the vessel lid.
  • the electrode changing stations are fixed units that can be formed from simple mechanical holders. Maintenance is rarely, if not at all, necessary, and may, for example, be carried out simultaneously with necessary maintenance of the vessel lid.
  • the mechanism for this introduction of an electrode changing station into the swivel range is outside the swivel range itself and is thus deprived of increased particle load.
  • Such an arrangement is also very low maintenance and also easily accessible to the maintenance personnel.
  • the tube lid itself is preferably not moved with the at least one electrode and the / the electrode holder (s) when changing electrodes.
  • the vessel lid can also be moved, since any movable mechanism of the device for changing at least one electrode is outside the pivoting range.
  • the molten metallurgical vessel is preferably an electric arc furnace. While the electrode consumption in a conventional electric arc furnace is different for each electrode present due to the irregular scrap distribution and nature, the required drilling phase at which the electrodes drill into the scrap, and the arc length, etc. occurring, the electrodes consume one another melt metallurgical vessel with Flachbad plante in which the arcs burn evenly on the bath surface, very evenly. Thus, in flat bath operation, a simultaneous replacement of all existing electrodes is generally to be expected.
  • the melt-metallurgical vessel may also be ladle furnaces or similar melt-metallurgical vessels operated with electrodes or self-consuming / consuming energy transfer devices.
  • the at least two electrode changing stations of the device are identical.
  • Particularly preferred is an education or at least lining both electrode changing stations from / with refractory material, so that hot remnants of electrodes can be safely parked in each electrode change station.
  • a lining of an electrode changing station with in particular refractory elastic fiber material has been proven to reduce the mechanical stress on the remaining pieces of the electrode (s) when stopping and to damp their impact in the electrode changing station.
  • a lining may also be formed in the form of a refractory metallic clamping device, which lock the parked remnants.
  • a first electrode change station of the at least two electrode change stations forms a storage station for a remainder of the at least one electrode and if a second electrode change station of the at least two electrode change stations, a placement station for holding at least one spare electrode by means of at least one Electrode holder is receivable forms.
  • the hot leftovers can initially remain in the storage station and cool down so far that their further processing is easily possible.
  • a loss of time in the assembly of the electrode holder with the replacement electrodes does not arise because the replacement electrode (s) are provided by a further electrode exchange station.
  • the first and the second electrode changing station of the device are arranged to alternately form the parking station and the loading station. Remaining pieces of electrodes remaining in an electrode changing station used as storage station can be directly mechanically connected to replacement electrodes and reused for the next required electrode change, the storage station now holding the next replacement electrode and thus now functioning as a placement station.
  • a Nachsetzstation is arranged, the refractory horizontal plane forJnbianab Centrifuged at least two electrodes to a uniform length measure between the plane and having at least one electrode holder.
  • a Nachsetzstation is particularly for a conventionally operated electric arc furnace, in which a different levels of erosion occurs at the existing electrodes, an advantage. But even in Flachbad plante it may, although rarely required be to set the ends of the electrodes at the same height.
  • the at least two electrode changing stations are connected to a vertical exchange unit rotation axis, which is set up to pivot the electrode change stations horizontally into the pivoting range of the lifting and pivoting device.
  • the exchange unit rotation axis itself is outside the pivoting range and thus protected from particles.
  • At least one assembly unit for the mechanical connection of the remaining piece of the at least one electrode with at least one electrode extension piece is assigned to the at least two electrode changing stations of the device.
  • This mounting unit may comprise a robot which automatically forms the mechanical connection between the respective remnant and an electrode extension piece, wherein still hot remnants can be reused.
  • the assembly unit comprises a removal device for removing the respective remainder piece from the storage station in order to mechanically connect it manually to an electrode extension piece.
  • the first electrode change station can again act as a stop station and the second electrode change station again as a loading station.
  • the second electrode change station can also act as a storage station and the first electrode change station as a placement station. This is particularly preferred if the remaining pieces are already connected in the region of the electrode exchange station with electrode extension pieces.
  • the first and second electrode changing stations then act alternately as a stopping station.
  • the inventive method enables a fast, efficient and resource-saving operation of the device according to the invention, which minimizes interruptions in the melt operation due to their low maintenance requirements. Residual pieces of the electrode (s) are reused and finally applied completely.
  • the electrode holder is lowered or raised as needed by means of the lifting and pivoting device.
  • the first electrode exchange station is pivoted about the exchange unit rotation axis from a position within the pivoting range of the lifting and pivoting device to a position outside the pivoting range of the lifting and pivoting device and at the same time the second changeover electrode station around the exchange unit rotation axis of a position outside the pivoting range of the lifting-pivoting device is pivoted to a position within the pivoting range of the lifting-pivoting device.
  • the hot remaining pieces can initially remain in the storage station and cool down to the extent that their further processing is possible without any problem.
  • a loss of time in the assembly of the electrode holder with the replacement electrodes does not arise because the replacement electrode (s) are provided by a further electrode exchange station.
  • the arrangement of the exchange unit rotation axis outside the pivoting range of the Hub-Schwenkvorplatz or the vessel lid has a favorable effect, i. extending to the maintenance cycles of the electrode changing stations.
  • lifting and pivoting of the unevenly long remaining pieces of the electrodes and of the at least one electrode holder around the axis of rotation preferably takes place in the direction of the set-up station arranged between the receiving device and the at least two electrode changing stations, wherein the at least one electrode holder is opposite the mounted electrodes is shifted such that the remnants are leveled with their at least one electrode holder remote ends on the horizontal plane of the Nachsetzstation and wherein subsequently pivoting and lowering the leveled electrodes and the at least one Electrode holder takes place about the axis of rotation in the direction of the receiving device.
  • the plane thus serves to level or level the free ends of the electrodes, which in operation protrude through the vessel lid into the receptacle, to maintain a uniform melting operation.
  • FIGS. 1 to 3 schematically show a melting metallurgical vessel 1 in the form of an electric arc furnace with a first device from above for changing the electrodes 4.
  • the melt metallurgical vessel 1 comprises a receiving device 2 for melt (see also FIG. 4 , which shows a partial section IV-IV through the electric arc furnace) and to cover the receiving device 2 a vessel lid 3, each with an opening 3a per electrode 4.
  • the electrodes 4 are each positioned by means of an electrode holder 5 , By means of a stroke-pivoting device 6, the electrodes 4 and the electrode holder 5, optionally further the vessel lid 3, can be raised and pivoted laterally about a vertical axis of rotation 6a.
  • two electrode changing stations 7, 7 ' are present, which side by side in a swivel range S (cf. FIG. 3 ) of the stroke-pivoting device 6 are arranged on a circular path about the axis of rotation 6a.
  • the electrode changing stations 7, 7 'each have three openings 7a, which can receive replacement electrodes or remnants of electrodes 4.
  • the remaining pieces of the electrodes 4 are raised by means of the electrode holders 5 via the lifting pivot device 6 and pivoted in the direction of the electrode changing stations 7, 7 '.
  • the remaining pieces 4a of the electrodes 4 are positioned above the first electrode exchange station 7, which functions as a storage station, and the electrode holders 5 are lowered and released.
  • the still heated residual pieces 4a of the electrodes 4 slide into the openings 7a of the first electrode change station 7.
  • the electrode holders 5 are raised and pivoted further in the direction of the second electrode changeover station 7 ', which here acts as a loading station and in whose openings 7a' replacement electrodes 4 ' are located.
  • the melt-metallurgical process can be continued.
  • the remaining pieces 4a are mounted on electrode extension pieces, so that further replacement electrodes are formed. This can be done in the region of the first electrode change station 7 or even after removal of the cooled residual pieces 4a thereof at a different location.
  • These can now be kept, for example, in the first electrode change station 7, which acts as a placement station in a row. But also a renewed use of the second electrode change station 7 'as a placement station is possible.
  • the replacement electrodes 4 ' are also burnt down, the remnants are deposited in the area of the first or second electrode changeover station 7, 7' and the replacement electrodes are received in the region of the respective other electrode change station 7, 7 '.
  • the two electrode change stations 7, 7 ' are fixedly installed in the first device shown in Figures 1 to 3 and have no moving parts, so that no intensive maintenance activities are necessary.
  • a Nachsetzstation 8 In the swivel area S between the receiving device 2 and the electrode changing stations 7, 7 'is optionally a Vietnamesesetzstation 8. In Flachbad too can be dispensed with such a Nachsetzstation 8 mostly. If the electrodes 4 burn off unevenly and one or two electrodes 4 have shortened more than the remaining electrodes, then the free ends 40 of the electrodes 4 can be brought to the same level by means of the re-placement station 8. For this purpose, the electrode holders 5 are raised including the electrodes 4 and pivoted about the Nachsetzstation 8. The electrode holders 5 are lowered, each electrode 4 is released and placed on a horizontal plane of the Nachsetzstation 8. Now, the electrode holders 5 are again connected to the mutually leveled electrodes 4, lifted and pivoted about the vessel lid 3. After lowering the electrodes 4 through the openings 3a of the vessel lid 3, the melt-metallurgical process can be continued.
  • FIG. 5 schematically shows a melting metallurgical vessel 1 in the form of an electric arc furnace with a second device for changing the electrodes 4 from above.
  • the same reference numerals as in FIGS. 1 to 4 designate the same elements.
  • two electrode changing stations 7, 7 'are present here which can be brought into the circular path about the axis of rotation 6a in alternation in the swiveling range S of the lifting swivel device 6.
  • an exchange unit rotation axis 9 is present, around which the first electrode exchange station 7 and the second electrode exchange station 7 'are rotatable and can be introduced into the pivoting region S of the lifting and pivoting device 6 in alternation. Due to the arrangement of the movable mechanism of the exchange unit rotation axis 9 outside the pivoting range S, the second device very low maintenance and generally easily accessible.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Claims (13)

  1. Dispositif de changement d'au moins une électrode (4) d'un récipient pour fonderie (1), qui présente un dispositif de réception (2) pour le métal fondu et, pour recouvrir le dispositif de réception (2), un couvercle de récipient (3) avec une ouverture (3a) par électrode (4), dans lequel ladite au moins une électrode (4) peut être positionnée au moyen d'au moins un porte-électrodes (5) et ladite au moins une électrode (4) et ledit au moins un porte-électrodes (5) peuvent être soulevés et pivoter latéralement autour d'un axe de rotation vertical (6a) au moyen d'un dispositif de levage-pivotement (6), caractérisé en ce qu'il se trouve, en plus du dispositif de réception (2), au moins deux stations de changement d'électrode (7, 7'), qui soit sont disposées l'une à côté de l'autre dans une zone de pivotement (S) du dispositif de levage-pivotement (6) sur une trajectoire circulaire autour de l'axe de rotation (6a) soit peuvent être amenées en alternance dans la zone de pivotement (S) du dispositif de levage-pivotement (6) sur la trajectoire circulaire autour de l'axe de rotation (6a).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'en outre le couvercle de récipient (3) peut être soulevé et pivoter latéralement autour de l'axe de rotation (6a) au moyen du dispositif de levage-pivotement (6).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que lesdites au moins deux stations de changement d'électrode (7, 7') sont de configuration identique.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'une première station de changement d'électrode (7) desdites au moins deux stations de changement d'électrode (7, 7') forme une station de dépôt pour une pièce résiduelle (4a) de ladite au moins une électrode (4) et en ce qu'une deuxième station de changement d'électrode (7') desdites au moins deux stations de changement d'électrode (7, 7') forme une station de montage d'au moins une électrode de remplacement (4'), qui peut être reprise au moyen dudit au moins un porte-électrodes (5).
  5. Dispositif selon la revendication 4, caractérisé en ce que la première et la deuxième stations de changement d'électrode (7, 7') sont conçues pour former en alternance la station de dépôt et la station de montage.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il se trouve au moins deux électrodes (4) et en ce qu'une station de retouche (8) est disposée sur la trajectoire circulaire entre le dispositif de réception (2) et lesdites au moins deux stations de changement d'électrode (7, 7'), qui présente un plan horizontal réfractaire pour l'égalisation de la longueur desdites au moins deux électrodes (4) à une longueur unique entre le plan et ledit au moins un porte-électrodes (5).
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que lesdites au moins deux stations de changement d'électrode (7, 7') sont reliées avec un axe de rotation vertical (9) des unités de changement, qui est conçu pour faire pivoter les stations de changement d'électrode (7, 7') horizontalement dans la zone de pivotement (S) du dispositif de levage-pivotement (6) et sur la trajectoire circulaire.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au moins une unité de montage pour l'assemblage mécanique de la pièce résiduelle (4a) de ladite au moins une électrode (4) avec au moins une pièce d'allongement d'électrode est associée auxdites au moins deux stations de changement d'électrode (7, 7').
  9. Procédé de changement d'au moins une électrode (4) d'un récipient pour fonderie (1) au moyen d'un dispositif selon l'une quelconque des revendications 1 à 8, comprenant les étapes suivantes:
    - soulever et faire pivoter la pièce résiduelle (4a) de ladite au moins une électrode (4) et ledit au moins un porte-électrodes (5) et en option également le couvercle de récipient (3), autour de l'axe de rotation (6a) en direction desdites au moins deux stations de changement d'électrode (7, 7');
    - positionner la pièce résiduelle (4a) de ladite au moins une électrode (4) et une première station de changement d'électrode (7) desdites au moins deux stations de changement d'électrode (7, 7') l'une par rapport à l'autre et déposer la pièce résiduelle (4a) hors dudit au moins un porte-électrodes (5) dans la première station de changement d'électrode (7), qui opère en tant que station de dépôt;
    - positionner ledit au moins un porte-électrodes (5) et une deuxième station de changement d'électrode (7') desdites au moins deux stations de changement d'électrode (7, 7') l'un par rapport à l'autre et garnir ledit au moins un porte-électrodes (5) avec une électrode de remplacement (4'), la deuxième station de changement d'électrode (7') opérant ainsi en station de montage;
    - faire pivoter et abaisser ladite au moins une électrode de remplacement (4') et ledit au moins un porte-électrodes (5), en option également le couvercle de récipient (3), autour de l'axe de rotation (6a) en direction du dispositif de réception (2) ;
    - enlever la pièce résiduelle (4a) de la station de dépôt et/ou réaliser un assemblage mécanique entre la pièce résiduelle (4a) de ladite au moins une électrode (4) et au moins une pièce d'allongement d'électrode avec formation d'une autre électrode de remplacement; et
    - répéter le procédé après un laps de temps Z.
  10. Procédé selon la revendication 9, dans lequel, lors de la répétition du procédé, la première station de changement d'électrode (7) et la deuxième station de changement d'électrode (7') opèrent en alternance en tant que station de dépôt.
  11. Procédé selon la revendication 9 ou la revendication 10, dans lequel on fait pivoter la première station de changement d'électrode (7) autour de l'axe de rotation (9) des unités de changement d'une position située à l'intérieur de la zone de pivotement (S) du dispositif de levage-pivotement (6) à une position située à l'extérieur de la zone de pivotement (S) du dispositif de levage-pivotement (6) et en ce l'on fait en même temps pivoter la deuxième station de changement d'électrode (7') autour de l'axe de rotation (9) des unités de changement d'une position située à l'extérieur de la zone de pivotement (S) du dispositif de levage-pivotement (6) à une position située à l'intérieur de la zone de pivotement (S) du dispositif de levage-pivotement (6).
  12. Procédé selon l'une quelconque des revendications 9 à 11, dans lequel, en cas d'usure inégale de plusieurs électrodes présentes (4), on soulève et on fait pivoter les pièces résiduelles de longueur inégale (4a) des électrodes (4) et ledit au moins un porte-électrodes (5) autour de l'axe de rotation (6a) en direction de la station de retouche (8) disposée entre le dispositif de réception (2) et lesdites au moins deux stations de changement d'électrode (7, 7'), dans lequel on déplace ledit au moins un porte-électrodes (5) par rapport aux électrodes portées (4), de telle manière que les pièces résiduelles (4a) soient nivelées avec leurs extrémités détournées (40) dudit au moins un porte-électrodes (5) sur le plan horizontal de la station de retouche (8) et dans lequel on opère ensuite un pivotement et un abaissement des électrodes nivelées (4) et dudit au moins un porte-électrodes (5) autour de l'axe de rotation (6a) en direction du dispositif de réception (2).
  13. Récipient pour fonderie (1), en particulier four à arc électrique, avec un dispositif selon l'une quelconque des revendications 1 à 8, dans lequel le dispositif comprend un mécanisme mobile, qui est disposé à l'extérieur de la zone de pivotement (S) du dispositif de levage-pivotement (6) et au moyen duquel desdites au moins deux stations de changement d'électrode (7, 7') peuvent être amenées en alternance dans la zone de pivotement (S) du dispositif de levage-pivotement (6) sur la trajectoire circulaire autour de l'axe de rotation (6a).
EP13762769.1A 2012-09-20 2013-09-06 Dispositif et procédé de changement d'au moins une électrode d'un récipient pour fonderie Not-in-force EP2883418B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012216847.8A DE102012216847A1 (de) 2012-09-20 2012-09-20 Vorrichtung und Verfahren zum Wechseln mindestens einer Elektrode eines schmelzmetallurgischen Gefäßes
PCT/EP2013/068418 WO2014044548A1 (fr) 2012-09-20 2013-09-06 Dispositif et procédé de changement d'au moins une électrode d'un récipient pour fonderie

Publications (2)

Publication Number Publication Date
EP2883418A1 EP2883418A1 (fr) 2015-06-17
EP2883418B1 true EP2883418B1 (fr) 2016-08-31

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EP13762769.1A Not-in-force EP2883418B1 (fr) 2012-09-20 2013-09-06 Dispositif et procédé de changement d'au moins une électrode d'un récipient pour fonderie

Country Status (6)

Country Link
US (1) US20150237685A1 (fr)
EP (1) EP2883418B1 (fr)
DE (1) DE102012216847A1 (fr)
MX (1) MX2015003600A (fr)
RU (1) RU2015114332A (fr)
WO (1) WO2014044548A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612739A (en) * 1970-02-05 1971-10-12 Simon M Korneff Dual electric furnace facility
AT314109B (de) * 1970-10-14 1974-03-25 Leybold Heraeus Verwaltung Vorrichtung zum Elektro-Schlackeumschmelzen von Abschmelzelektroden
SE417052B (sv) 1979-05-08 1981-02-16 Skf Ab Sett och anordning for byte av elektoder i en ljusbagsugn
EP0061612B1 (fr) * 1981-03-24 1985-08-07 Fried. Krupp Gesellschaft mit beschränkter Haftung Système de conducteurs pour courant intense pour fours électriques
SE431604B (sv) * 1982-06-29 1984-02-13 Asea Ab Anordning for positionering av elektroder vid ljusbagsugnar
DE3427904A1 (de) * 1984-07-28 1986-02-06 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Anhebe- und absenkeinrichtung fuer eine vorrichtung zum nachsetzen der elektroden eines elektro-lichtbogenofens und verfahren zum betrieb der einrichtung
DE3537326A1 (de) * 1985-10-19 1987-04-30 Bayerische Motoren Werke Ag Vollautomatisches unterkupfer-schweisssystem
DE10332866A1 (de) * 2002-08-20 2004-03-04 Sms Demag Ag Doppelofenanlage für die Erzeugung von Stahlwerkstoffen
DE102006041421A1 (de) * 2006-09-04 2008-03-06 Fuchs Technology Ag Schmelzofen, insbesondere Lichtbogenofen
DE102010048647A1 (de) * 2010-10-15 2012-01-19 Fuchs Technology Holding Ag Elektrodengreifer zum Greifen einer Elektrode eines Elektrolichtbogenofens und Klaueneingriffselement für eine solche Elektrode

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Publication number Publication date
DE102012216847A1 (de) 2014-03-20
MX2015003600A (es) 2015-06-05
RU2015114332A (ru) 2016-11-10
US20150237685A1 (en) 2015-08-20
WO2014044548A1 (fr) 2014-03-27
EP2883418A1 (fr) 2015-06-17

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