EP2585624B1 - Vorrichtung zur entfernung von kurzschliessungsblockierungen bei der inbetriebnahme einer elektrolysezelle zur herstellung von aluminium - Google Patents

Vorrichtung zur entfernung von kurzschliessungsblockierungen bei der inbetriebnahme einer elektrolysezelle zur herstellung von aluminium Download PDF

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Publication number
EP2585624B1
EP2585624B1 EP11740956.5A EP11740956A EP2585624B1 EP 2585624 B1 EP2585624 B1 EP 2585624B1 EP 11740956 A EP11740956 A EP 11740956A EP 2585624 B1 EP2585624 B1 EP 2585624B1
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EP
European Patent Office
Prior art keywords
wedge
extraction device
jack
conductors
face
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Not-in-force
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EP11740956.5A
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English (en)
French (fr)
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EP2585624A1 (de
Inventor
Frédéric BRUN
Serge Despinasse
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Rio Tinto Alcan International Ltd
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Rio Tinto Alcan International Ltd
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Publication of EP2585624A1 publication Critical patent/EP2585624A1/de
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/16—Electric current supply devices, e.g. bus bars
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts

Definitions

  • the invention relates to the field of aluminum production by igneous electrolysis according to the Hall-Héroult method. It relates to the electrical connection devices of the electrolysis cells for the production of aluminum by igneous electrolysis. It relates more particularly to a device, which is used during the restarting operation of a cell temporarily out of service, also called “switching on” operation, and which makes it possible to remove shims of short-circuiting placed between the cathode assembly of said cell and the cathode assembly of the adjacent upstream cell. Such equipment will be called later “bilge extraction device” or "extractor”.
  • Each electrolysis cell comprises a vessel provided with a cathode assembly and an anode system.
  • the tank comprises a steel box, refractory material coating elements and a cathode assembly located at the bottom of the tank, formed by the juxtaposition of carbon blocks in which are sealed metal bars whose ends out of the box.
  • Each tank also comprises an anode system formed by at least one rigid beam, which supports one or more conductive horizontal bars, called “anode frame”, on which are fastened the suspension rods of anodes of carbonaceous material which are partially immersed in the electrolyte bath.
  • anode system formed by at least one rigid beam, which supports one or more conductive horizontal bars, called “anode frame”, on which are fastened the suspension rods of anodes of carbonaceous material which are partially immersed in the electrolyte bath.
  • the cells are generally arranged to form two or more parallel lines that are electrically bonded together by end conductors.
  • the electric current passes from the cathode of an upstream cell to the anode of a downstream cell.
  • the connection circuit between two successive cells comprises a circuit for transporting the electrolysis current, constituted by cathodic collectors connected on the one hand to the cathode outlets of a cell of given rank (n) and, on the other hand, to "Anode climbs", themselves connected to the rigid beam and the anode frames of the adjacent downstream cell, of rank (n + 1).
  • substantially rectangular section each having at least one horizontal upper face and a substantially vertical face, the substantially vertical face of a conductor being placed vis-à-vis that of the other, the two substantially vertical faces thus delimiting a air gap for receiving a shim wedge, itself comprising two substantially parallel faces, which converge weakly downwards when the shim is placed to occupy said gap.
  • the shims In order to stop the cell, the shims must be inserted between the conductors so as to provide a contact surface with as little electrical resistance as possible. In practice, to ensure good electrical contact, these wedges are introduced into the gap between the conductors, while they themselves are held by bolted tie rods.
  • said shims For the activation of the cell, said shims must be removed, so as to isolate said one of said conductors, the current coming from the upstream cell passing again through the anode mountings to feed the anode frame of the adjacent downstream cell. To remove the shims without having to provide too much effort, it is generally necessary to unbolt at least partially said tie rods. The shims are then pulled upward so that they come out of the gap between the conductors.
  • the Applicant has developed a wedge extraction process that does not have the drawbacks mentioned above, wherein an extractor is used which acts on the holds without the need to unbolt the tie rods, which exerts effort important during the extraction of the holds without this entails the slightest risk of deterioration of said conductors and finally which allows to control the ejection path of said shims.
  • the force-compensating force which tends to separate the shim from the driver is the result of forces exerted directly on the upper horizontal face of each of the conductors, which makes it possible to avoid the lifting of the conductors and their damage, in case the extraction force is insufficient to detach the shim from the conductors.
  • This device capable of providing greater forces than those of the prior art while not damaging the conductors, is all the more appropriate as the wedge is strongly maintained between two conductors held by tie rods.
  • the extractor device comprises at least one jack which is placed such that, when actuated, it can exert opposite forces on the hold and on at least one conductor.
  • the first part of the jack (the body or the rod) is secured to at least one horizontal bearing face intended to arrive at the right of the upper horizontal face of a driver.
  • the second part of the jack (the rod or the body) is connected to the gripping means of the hold, at least temporarily, when the jack is actuated to carry out the extraction of the hold.
  • this second part of the jack can be movable relative to said gripping means in certain phases of use of the extractor device but it is necessary that it comes into contact with this gripping means and drives it into its seat. movement, when the jack is actuated to exert the spreading forces.
  • the gripping means of the wedge advantageously comprises a fastening piece on which are fixed fastening means cooperating with complementary fastening means provided on the hold, preferably on the upper part of the hold which is intended to remain above the air gap of the conductors when the shim is inserted and is therefore more easily accessible.
  • a fastening piece on which are fixed fastening means cooperating with complementary fastening means provided on the hold, preferably on the upper part of the hold which is intended to remain above the air gap of the conductors when the shim is inserted and is therefore more easily accessible.
  • there is arranged in the upper part of the shim at least one substantially horizontal bore to be traversed by a locking pin integral with the attachment piece.
  • the one or more locking pins are actuated by one or more auxiliary actuators, which are themselves fixed on said attachment piece and which impose on said axes a movement such that they can fit into said bores for the purpose of gripping the hold.
  • the conductors are placed opposite each other so that the wedge is placed vertically and the extractor can thus be put in place at the level of the hold to be extracted by means of a transport device and lifting, crane type / trolley / hoist.
  • the invention retains all its interest if the pair of horizontal and vertical directions evoked is replaced by any pair of perpendicular directions, each shim having an upper face perpendicular to the direction of the gap between them, the handling device for to place said device right wedges being of course adapted to such a reference.
  • the extractor device comprises at least one jack having the characteristics specified above.
  • This jack may be an electric jack, typically powered by a circuit having a variator, but, preferably, it is a hydraulic cylinder, because, with identical dimensions, the latter is able to exert a greater effort.
  • the hydraulic cylinder or cylinders are powered by a single hydraulic unit, which is preferably mounted on said extractor device or on the handling device of said extractor device.
  • said extractor device also comprises an actuator intended to raise the assembly comprising the shim, the gripping means of the shim and the jack or jacks, as soon as the shim has been extracted, it is as soon as it is no longer retained by the drivers.
  • This actuator acts as an ejector: the assembly comprising the wedge and the gripping means of the wedge must be evacuated so that the wedge can be completely out of the gap between the conductors vis-à-vis also as fast as possible, at a significantly faster speed than the rod of a hydraulic cylinder. Indeed, it seeks an ejection speed of the assembly comprising the wedge and the gripping means as high as possible because it helps to limit the risk of occurrence of electric arc during the ascent of the hold.
  • said actuator also called ejector
  • said actuator is a pneumatic cylinder.
  • the gripping means of the wedge is integral with the rod (or the body) of said ejector and the stroke of the rod of said ejector is long enough to allow said wedge to exit completely from the gap of the conductors.
  • the cylinder (s) and the ejector operate simultaneously. There is therefore no need to synchronize the actions of the jack or jets: the extraction force exerted on the hold, provided by the jack or jacks, being substantially higher than the effort provided by the ejector, is applied only until the wedge is detached from the drivers, moment from which only the thrust of the ejector acts.
  • said extractor device comprises a frame on which said ejector is fixed.
  • Said frame comprises hooking means, so that it can be handled by a means of transport and lifting.
  • the means used for the transport and lifting of said extractor device is an association crane / trolley / hoist.
  • the device is placed in line with the conductors and is laid down so that at least one horizontal support surface rests on one face. horizontal plane of a conductor.
  • the extractor device can be maintained or not by the transport and lifting means.
  • said frame is provided with centering means which guide said extractor device during its vertical descent to a predefined position relative to said conductors, the bearing faces being placed at the right of the upper horizontal faces of said conductors.
  • said frame also comprises a fairing which delimits the space in which the assembly comprising the wedge and the gripping means of the shim must evolve after the extraction of said shim and which provides protection for the operators acting in the vicinity of the shim. extractor vis-à-vis the extracted moving parts.
  • Electrolysis plants for aluminum production include one or more electrolysis rooms.
  • the electrolysis room (1) illustrated on the figure 1 comprises electrolysis cells (2) and a service machine (5).
  • the electrolysis cells (2) are normally arranged in rows or rows, each row or line typically having more than one hundred cells.
  • the cells (2) are arranged so as to clear a circulation aisle along the electrolysis room (1).
  • the cells (2) comprise a series of anodes (3) provided with a metal rod (4) for fixing and electrically connecting the anodes to a metal anode frame (27).
  • Each cell (2) comprises a cell provided with a cathode assembly (22) and an anode system (26).
  • the cell comprises a steel casing, lining elements made of refractory materials.
  • the cathode assembly (22), located at the bottom of the cell, is formed by the juxtaposition of carbon blocks in which are sealed metal bars whose ends (21) out of the box and are interconnected by a cathode collector (23). ).
  • the connection circuit between two successive cells (2. (n-1) and 2.n) comprises a circuit for transporting the electrolysis current where the cathode collector (23. (n-1)) is connected on the one hand at the cathode outlets (21. (n-1)) of a cell of given rank (2. (n-1)) and, on the other hand, at anode ascents (28.n), themselves connected to the anode frames (27.n) of the adjacent downstream cell (2.n).
  • the extractor device (30) illustrated in figure 3 a) and b ) is intended to extract a shorting shim (20), which has been inserted between two conductors (24 and 25) for switching off an electrolysis cell.
  • the first conductor (24) is a connecting conductor between the cathode output (23. (n-1)) of the cell directly upstream and the anode rise (28.n) which feeds the anode frame (27) of said cell downstream (2.n).
  • the second conductor (25) is a portion of the cathode collector (23.n) of said downstream cell (2.n).
  • Each conductor (24, 25) has at least one upper horizontal face (240, 250) and a substantially vertical face (241, 251).
  • the substantially vertical faces (241, 251) are placed opposite one another, thus delimiting a gap intended to receive said shorting wedge, itself comprising two substantially parallel faces (204, 205), which converge weakly downwards.
  • the extractor device (30) comprises a gripping means (31) of said shim and a vertically oriented cylinder (32) comprising a body (320) and a rod (321).
  • the body (320) is secured, via an intermediate hollow piece (33), with a horizontal bearing face (335) which is oriented downwards and which is arranged in such a way that when said extractor device is placed at above said wedge to extract it, the upper horizontal face (240, 250) of each conductor (24, 25) is at the right of the horizontal bearing face (335).
  • the rod (321) is connected to the gripping means (31) of the shim (20), so that when the jack (32) is actuated to perform the extraction of the shim, said jack exerts on the conductors (24, 25) and on the wedge (20), opposing forces tending to remove them.
  • the cylinder (32) is a double-acting hydraulic cylinder, powered by a hydraulic unit via a circuit arranged so that the extraction takes place when the piston-side chamber (322) is energized.
  • the body (320) of the jack (32) has a lower horizontal face (325) which is in contact with the upper horizontal face (331) of the intermediate piece (33) when the extractor device is placed on conductors for the purpose of extracting a hold.
  • a vertical force is exerted on the upper horizontal face (331) of the intermediate piece (33) and is transmitted to the conductors through the lower horizontal face, which plays the role horizontal support surface (335), itself placed in contact with the upper horizontal faces (240, 250) of the conductors (24, 25).
  • the rod (321) is hollow, traversed right through by an axial bore (3211) through which an axis (40) integral with the gripping means (31) of the shim can slide.
  • Said axis (40) integral with the gripping means is provided with a shoulder (41) which serves as an abutment for the axial movement of the rod (321): when the jack is actuated, the pressurized oil fills the piston-side chamber ( 322), which causes the rod (321) to rise.
  • the end (3210) of the rod (321) comes into contact with the shoulder (41) of the shaft (40), so that the cylinder (32) acts on the axis and exerts an upward force on said gripping device (31).
  • the wedge (20) and said extractor device (30) are provided with gripping means cooperating with each other.
  • the extractor device (30) comprises, as means for gripping the wedge, a hooking piece (313) having a generally U-shaped inverted shape, the two arms of the U, provided with bores, being, for the purpose of extraction of the wedge, placed on either side of the upper end of the hold, and two journals (311, 312) arranged so that they are placed, aligned horizontally, on either side of the wedge (20).
  • the wedge (20) has, in its upper part intended to remain above the air gap conductors, a horizontal bore (201) through the entire thickness of the shim.
  • Each trunnion (311, 312) can be actuated by a jack (315, 316) which allows, by means of a suitable linkage, to introduce said trunnion into the bore (201) of the shim and the bore of the branch of the attachment part associated with said pin, for gripping the hold.
  • the attachment piece (313) is attached to the lower end of the vertical axis (40).
  • the intermediate piece (33) also acts as a fairing which provides protection for operators acting near the extractor device vis-à-vis the extracted moving parts.
  • the extractor device (30) also comprises an actuator (50) intended to raise the assembly comprising the shim, the gripping means of the hold and the cylinder or jacks, as soon as the shim has been extracted, that is to say say as soon as it is no longer retained by the drivers.
  • This actuator is a pneumatic cylinder (51).
  • the gripping means (31) of the shim is attached to the lower end of the axis (40), which is itself an extension of the rod (52) of the actuator (50).
  • the jack (32) and the actuator (50) operate simultaneously: the extraction force exerted on the shim, provided by the jack (32), substantially higher than the force provided by the actuator (50), is applied only until the shim detaches from the conductors, moment from which only the lifting force of the actuator (50) acts.
  • the extractor device (30) also comprises a frame (60) on which is fixed said actuator (50).
  • This frame is schematized here, forming a block with the intermediate piece (33) which constitutes the lower part.
  • Said frame comprises hooking means (not shown), so that it can be handled by a means of transport and lifting.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Claims (15)

  1. Extraktionsvorrichtung (30) zur Entfernung eines Keilstücks (20) zum Kurzschließen, wobei das Keilstück zur Abschaltung einer Elektrolysezelle (2) zwischen zwei Stromzuführungen (24 und 25) eingesetzt wurde, wobei jede Stromzuführung (24, 25) mindestens eine horizontale obere Fläche (240, 250) und eine im Wesentlichen vertikale Fläche (241, 251) aufweist, wobei die im Wesentlichen vertikale Fläche einer Stromzuführung der der anderen Stromzuführung gegenüberliegend angeordnet ist, wobei die beiden im Wesentlichen vertikalen Flächen so einen Luftspalt zur Aufnahme des Keilstücks zum Kurzschließen begrenzen, welches seinerseits zwei im Wesentlichen parallele Flächen (204, 205) aufweist, die geringfügig nach unten zusammenlaufen, wenn das Keilstück in den Luftspalt eintreten soll, wobei die Vorrichtung ein Mittel (31) zum Greifen des Keilstücks umfasst und dadurch gekennzeichnet ist, dass sie ferner mindestens einen vertikal ausgerichteten Zylinder (32) mit einem Zylinderkörper (320) und einen Kolben umfasst, dem eine Kolbenstange (321) zugeordnet ist,
    a) wobei der Zylinderkörper (oder die Kolbenstange) fest mit mindestens einer nach unten gerichteten horizontalen Auflagefläche (335) verbunden ist, welche so angeordnet ist, dass, wenn die Extraktionsvorrichtung zur Entfernung des Keilstücks über diesem platziert ist, die horizontale obere Fläche (240, 250) jeder Stromzuführung (24, 25) an der horizontalen Auflagefläche (335) liegt,
    b) wobei die Kolbenstange (oder der Zylinderkörper) mit dem Mittel (31) zum Greifen des Keilstücks so verbunden ist, dass bei Betätigung des Zylinders (32) zum Entfernen des Keilstücks der Zylinder entgegengesetzte Kräfte auf die Stromzuführungen und auf das Keilstück ausübt, um sie voneinander wegzubewegen.
  2. Extraktionsvorrichtung (30) nach Anspruch 1, dadurch gekennzeichnet, dass das Greifmittel ein Befestigungsteil (313) umfasst, an dem Befestigungsmittel angebracht sind, die mit Befestigungsmitteln im oberen Bereich des Keilstücks, der über dem Luftspalt der Stromzuführungen bleiben soll, wenn das Keilstück im Luftspalt eingesetzt ist, zusammenwirken.
  3. Extraktionsvorrichtung (30) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zylinder (32) ein Hydraulikzylinder ist.
  4. Extraktionsvorrichtung (30) nach irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie ferner ein Stellglied (50) umfasst, welches, sobald das Keilstück nicht mehr von den Stromzuführungen festgehalten wird, die Anordnung aus Keilstück (20), Mittel (31) zum Greifen des Keilstücks und Zylindern (32) anhebt, um sie aus dem Luftspalt zwischen den Stromzuführungen herauszuführen.
  5. Extraktionsvorrichtung (30) nach Anspruch 4, dadurch gekennzeichnet, dass das Stellglied (50) ein Pneumatikzylinder (51) ist.
  6. Extraktionsvorrichtung (30) nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Zylinder (32) und das Stellglied (50) bei der Entfernung des Keilstücks (20) gleichzeitig arbeiten.
  7. Extraktionsvorrichtung (30) nach irgendeinem der Ansprüche 5 bis 6, dadurch gekennzeichnet, dass sie ferner ein Gestell umfasst, an dem das Stellglied (50) befestigt ist, wobei das Gestell Einhakmittel aufweist, damit es mit einem Förder- und Hebemittel bewegt werden kann.
  8. Extraktionsvorrichtung (30) nach Anspruch 7, dadurch gekennzeichnet, dass das Gestell mit Zentriermitteln versehen ist, mit denen die Extraktionsvorrichtung bei ihrem vertikalen Absinken in eine vorbestimmte Position relativ zu den Stromzuführungen geführt werden kann, wobei die Auflageflächen an den horizontalen oberen Flächen der Stromzuführungen liegen.
  9. Extraktionsvorrichtung (30) nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass das Gestell ferner eine Verkleidung aufweist, die den Raum für die Bewegung der Anordnung aus Keilstück (20) und Mittel (31) zum Greifen des Keilstücks nach dem Entfernen der Keilstücks begrenzt und die den Schutz des in der Nähe der Extraktionsvorrichtung arbeitenden Bedienungspersonals gewährleistet.
  10. Extraktionsvorrichtung (30) nach irgendeinem der Ansprüche 1 bis 9, die ein hohl ausgebildetes Zwischenstück (33) mit einer nach unten gerichteten Auflagefläche (335) umfasst und bei der der Zylinderkörper (320) des Zylinders (32) über das hohl ausgebildete Zwischenstück (33) mit der horizontalen Auflagefläche (335) fest verbunden ist, wobei die horizontale obere Fläche (240, 250) jeder Stromzuführung (24, 25) an der horizontalen Auflagefläche (335) liegt, wenn die Vorrichtung sich in der Position zum Entfernen des Keilstücks befindet.
  11. Extraktionsvorrichtung (30) nach Anspruch 10, wobei der Zylinderkörper (320) des Zylinders (32) eine horizontale untere Fläche (325) hat, die mit der horizontalen oberen Fläche (331) des Zwischenstücks (33) in Berührung kommt, wenn die Extraktionsvorrichtung (30) zur Entfernung des Keilstücks auf den Stromzuführungen platziert ist.
  12. Extraktionsvorrichtung (30) nach Anspruch 10 oder 11, wobei die Stange (321) des Zylinders (32) hohl ausgebildet und ganz von einer axialen Bohrung (3211) durchsetzt ist, durch die eine mit dem Mittel (31) zum Greifen des Keilstücks (20) fest verbundene Achse (40) gleiten kann.
  13. Extraktionsvorrichtung (30) nach Anspruch 12, wobei die mit dem Greifmittel (31) fest verbundene Achse (40) mit einer Schulter (41) versehen ist, die als Anschlag für die Axialbewegung der Stange (321) dient, derart, dass bei Betätigung des Zylinders (32) die Stange (321) mit nach oben geführt wird, das Ende (3210) der Stange (321) mit der Schulter (41) der Achse (40) in Berührung kommt, so dass der Zylinder (32) eine aufwärts gerichtete Kraft auf das Greifmittel (31) ausübt.
  14. Extraktionsvorrichtung (30) nach Anspruch 12 oder 13, wobei das Mittel (31) zum Greifen des Keilstücks (20) am unteren Ende der Achse (40) befestigt ist, welche ihrerseits eine Verlängerung der Stange (52) des Stellglieds (50) ist.
  15. Verfahren zur Entfernung von Keilstücken zum Kurzschließen, welches Verfahren beim Einschalten einer Elektrolysezelle (2.n) verwendet wird und bei dem die zur Abschaltung der Elektrolysezelle zwischen zwei Stromzuführungen (24, 25) eingesetzten Keilstücke (20) zum Kurzschließen entfernt werden, wobei die erste Stromzuführung der Kathodenanordnung (22.n) der Zelle (2.n) zugeordnet ist und die zweite Stromzuführung der Kathodenanordnung (22.(n-1)) der vorgeschalteten Nachbarzelle zugeordnet ist, wobei jede Stromzuführung (24, 25) mindestens eine horizontale obere Fläche (240, 250) und eine im Wesentlichen vertikale Fläche (241, 251) aufweist, wobei die im Wesentlichen vertikale Fläche einer Stromzuführung der der anderen Stromzuführung gegenüberliegend angeordnet ist, wobei die beiden im Wesentlichen vertikalen Flächen so einen Luftspalt zur Aufnahme eines Keilstücks (20) zum Kurzschließen begrenzen, welches seinerseits zwei im Wesentlichen parallele Flächen (204, 205) aufweist, die geringfügig nach unten zusammenlaufen, wenn das Keilstück in den Luftspalt eintreten soll, wobei das Verfahren dadurch gekennzeichnet ist, dass eine Extraktionsvorrichtung (30) nach irgendeinem der Ansprüche 1 bis 14 verwendet wird.
EP11740956.5A 2010-06-28 2011-06-23 Vorrichtung zur entfernung von kurzschliessungsblockierungen bei der inbetriebnahme einer elektrolysezelle zur herstellung von aluminium Not-in-force EP2585624B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1002686A FR2961828B1 (fr) 2010-06-28 2010-06-28 Dispositif permettant d'extraire des cales de court-circuitage lors de la mise en circuit d'une cellule d'electrolyse pour la production d'aluminium
PCT/FR2011/000357 WO2012001242A1 (fr) 2010-06-28 2011-06-23 Dispositif permettant d'extraire des cales de court-circuitage lors de la mise en circuit d'une cellule d'electrolyse pour la production d'aluminium

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EP2585624A1 EP2585624A1 (de) 2013-05-01
EP2585624B1 true EP2585624B1 (de) 2014-04-16

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US (1) US20130098755A1 (de)
EP (1) EP2585624B1 (de)
CN (1) CN102959133B (de)
AR (1) AR081676A1 (de)
AU (1) AU2011273335B2 (de)
CA (1) CA2792945C (de)
FR (1) FR2961828B1 (de)
MY (1) MY165055A (de)
RU (1) RU2601018C2 (de)
WO (1) WO2012001242A1 (de)
ZA (1) ZA201209087B (de)

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FR2961829B1 (fr) * 2010-06-28 2012-07-13 Ecl Dispositif extracteur de cales de court-circuitage destine a la mise en circuit d'une cellule d'electrolyse pour la production d'aluminium
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RU2601018C2 (ru) 2016-10-27
EP2585624A1 (de) 2013-05-01
CA2792945C (fr) 2013-12-03
ZA201209087B (en) 2014-02-26
US20130098755A1 (en) 2013-04-25
FR2961828B1 (fr) 2012-08-10
RU2013103483A (ru) 2014-08-10
CN102959133A (zh) 2013-03-06
AU2011273335B2 (en) 2014-03-20
AU2011273335A1 (en) 2013-01-31
CA2792945A1 (fr) 2012-01-05
MY165055A (en) 2018-02-28
AR081676A1 (es) 2012-10-10
CN102959133B (zh) 2015-05-27
WO2012001242A1 (fr) 2012-01-05
FR2961828A1 (fr) 2011-12-30

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