WO2012001242A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- WO2012001242A1 WO2012001242A1 PCT/FR2011/000357 FR2011000357W WO2012001242A1 WO 2012001242 A1 WO2012001242 A1 WO 2012001242A1 FR 2011000357 W FR2011000357 W FR 2011000357W WO 2012001242 A1 WO2012001242 A1 WO 2012001242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- extractor device
- shim
- wedge
- conductors
- face
- Prior art date
Links
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 title description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title description 9
- 239000004411 aluminium Substances 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 76
- 238000000605 extraction Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009626 Hall-Héroult process Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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). From time to time, one or more cells in a series must be shut down.
- This stop is made by connecting the cathode collector of a given cell to the connecting conductor which connects the cathode outputs of the upstream cell adjacent to the "anode rises" which feed the anode frame of said cell.
- the connection is made via a plurality of conductive shims, typically made of aluminum, such as those mentioned in patent FR 2 583 069 (see FIG.
- the cathode collector of the cell and the connecting conductor between the cathode of the upstream cell and the anode of said cell are locally in the form of two substantially rectangular section conductors, each of which has at least one horizontal upper face and one substantially vertical face, the substantially vertical face of a conductor being placed vis-à-vis the other, the two substantially vertical faces thus delimiting a gap intended to receive a short-circuiting wedge, itself comprising two substantially parallel faces , which converge weakly downwards when the shim is placed in order 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.
- last holds removed can reach high temperatures.
- a high temperature of the holds can have adverse consequences, such as requiring a higher extraction force due to their expansion, or cause significant degradation of the contact surfaces.
- the intervention must therefore be as short as possible to limit overheating of the last holds removed.
- 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. . .
- a first object according to the invention is an extractor device for extracting a shorting wedge, said wedge having been inserted between two conductors for switching off an electrolysis cell, each conductor having at least one horizontal face. upper 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 gap for receiving said shim of short-circuiting, it -Even comprising two substantially parallel faces, which converge weakly downwards when said shim is placed in order to occupy said gap, said device comprising a gripping means of said shim and being characterized in that it also comprises at least one vertically oriented cylinder comprising a body and a piston with which a piston rod is associated,
- said rod being connected to said gripping means of said hold, such that, when said jack is actuated to perform the extraction of the hold, said jack exerts on said conductors and on said hold , opposing efforts to remove them.
- 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 two drivers facing each other are:
- a first conductor which is a connecting conductor between the cathode output of the cell directly upstream and the anode rise which supplies the anode frame of said cell
- the extractor device comprises at least one jack which is placed . .
- Each of the two parts of the cylinder which are movable relative to each other (body and rod), can be associated with either the shim or the conductors.
- 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 shim and the gripping means of the shim must be evacuated so that the shim can completely exit the air gap between the drivers in 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.
- Another object according to the invention is a method of extracting shims of short-circuiting employed during the operation of switching on an electrolysis cell, consisting in removing the shorting shims which have been introduced.
- the first conductor being associated with the cathode assembly of said cell and the second conductor being associated with the cathode assembly of the adjacent upstream cell, each conductor having at least an upper horizontal face and a substantially vertical face, the substantially vertical face of a conductor being placed opposite that of the other, the two substantially vertical faces delimiting a gap for receiving said shim circuit, itself comprising two substantially parallel faces, which converge weakly towards the bottom when said shim is placed in order to occupy said gap , said method being characterized in that the device according to the invention is used to extract said shim.
- the intervention must be as quick as possible to limit the heating of the last shims removed, using several devices according to the invention to simultaneously extract all or part of the shims that have been put in place for switching off a cell electrolysis.
- Figure 1 schematically illustrates a service machine in a typical electrolysis room for the production of aluminum, seen in section.
- Figure 2 schematically illustrates the arrangement of the connecting conductors between two neighboring cells.
- FIG. 3a represents said extractor device when it is put in place on the conductors, at the level of the shim to be extracted.
- FIG. 3b represents said extractor device when the shim has been extracted and is still in place, resting on the conductors, at the level of the shim which has just been extracted.
- Electrolysis plants for aluminum production include one or more electrolysis rooms.
- the electrolysis room (1) illustrated in FIG. 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 FIG. 3 a) and b) is intended to extract a short-circuiting wedge (20), which has been inserted between two conductors (24 and 25) for switching off a cell. electrolysis.
- 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).
- 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 (31 1, 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 piece 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)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11740956.5A EP2585624B1 (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 |
AU2011273335A AU2011273335B2 (en) | 2010-06-28 | 2011-06-23 | Device for extracting short-circuiting wedges when switching in an electrolysis cell for the production of aluminium |
RU2013103483/02A RU2601018C2 (ru) | 2010-06-28 | 2011-06-23 | Устройство, позволяющее извлекать закорачивающие клинья при включении электролизера для производства алюминия |
US13/806,513 US20130098755A1 (en) | 2010-06-28 | 2011-06-23 | Device for extracting short-circuiting wedges when switching in an electrolysis cell for the production of aluminum |
CN201180032021.6A CN102959133B (zh) | 2010-06-28 | 2011-06-23 | 在将生产铝的电解池联线时用于移出短路楔块的装置 |
CA2792945A CA2792945C (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 |
ZA2012/09087A ZA201209087B (en) | 2010-06-28 | 2012-11-30 | Device for extracting short-circuiting wedges when switching in an electrolysis cell for the production of aluminum |
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 |
FR10/02686 | 2010-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012001242A1 true WO2012001242A1 (fr) | 2012-01-05 |
Family
ID=43569393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (11)
Country | Link |
---|---|
US (1) | US20130098755A1 (fr) |
EP (1) | EP2585624B1 (fr) |
CN (1) | CN102959133B (fr) |
AR (1) | AR081676A1 (fr) |
AU (1) | AU2011273335B2 (fr) |
CA (1) | CA2792945C (fr) |
FR (1) | FR2961828B1 (fr) |
MY (1) | MY165055A (fr) |
RU (1) | RU2601018C2 (fr) |
WO (1) | WO2012001242A1 (fr) |
ZA (1) | ZA201209087B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2564200C1 (ru) * | 2014-06-03 | 2015-09-27 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Система для извлечения клиновидных шунтов при подключении электролизной ванны |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
NO343337B1 (en) * | 2017-05-29 | 2019-02-04 | Norsk Hydro As | Device for gripping an anode for lifting operations and method for operating same |
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US4431492A (en) * | 1982-04-20 | 1984-02-14 | Mitsubishi Keikinzoku Kogyo Kabushiki Kaisha | Aluminum electrolytic cell arrays and method of supplying electric power to the same |
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EP2080820A1 (fr) * | 2008-01-21 | 2009-07-22 | Alcan International Limited | Dispositif et procédé pour court-circuiter une ou plusieurs cellules dans un agencement de cellules d'électrolyse prévues pour la production d'aluminium |
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CN2745957Y (zh) * | 2004-11-12 | 2005-12-14 | 贵阳铝镁设计研究院 | 电解槽短路装置 |
RU2290458C1 (ru) * | 2005-06-22 | 2006-12-27 | Общество с ограниченной ответственностью "Инженерно-технологический центр" | Соединение шины с катодным стержнем алюминиевого электролизера |
CN2851290Y (zh) * | 2005-11-24 | 2006-12-27 | 贵阳铝镁设计研究院 | 一种用于铝电解槽短路停电的装置 |
CN201169633Y (zh) * | 2007-05-08 | 2008-12-24 | 贵阳铝镁设计研究院 | 铝电解系列不停电的铝电解槽电动式短路装置 |
-
2010
- 2010-06-28 FR FR1002686A patent/FR2961828B1/fr not_active Expired - Fee Related
-
2011
- 2011-06-23 CA CA2792945A patent/CA2792945C/fr not_active Expired - Fee Related
- 2011-06-23 CN CN201180032021.6A patent/CN102959133B/zh not_active Expired - Fee Related
- 2011-06-23 AU AU2011273335A patent/AU2011273335B2/en not_active Ceased
- 2011-06-23 WO PCT/FR2011/000357 patent/WO2012001242A1/fr active Application Filing
- 2011-06-23 EP EP11740956.5A patent/EP2585624B1/fr not_active Not-in-force
- 2011-06-23 MY MYPI2012005626A patent/MY165055A/en unknown
- 2011-06-23 RU RU2013103483/02A patent/RU2601018C2/ru not_active IP Right Cessation
- 2011-06-23 US US13/806,513 patent/US20130098755A1/en not_active Abandoned
- 2011-06-27 AR ARP110102239A patent/AR081676A1/es not_active Application Discontinuation
-
2012
- 2012-11-30 ZA ZA2012/09087A patent/ZA201209087B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4431492A (en) * | 1982-04-20 | 1984-02-14 | Mitsubishi Keikinzoku Kogyo Kabushiki Kaisha | Aluminum electrolytic cell arrays and method of supplying electric power to the same |
FR2583069A1 (fr) | 1985-06-05 | 1986-12-12 | Pechiney Aluminium | Dispositif de connexion entre cuves d'electrolyse a tres haute intensite, pour la production d'aluminium, comportant un circuit d'alimentation et un circuit independant de correction du champ magnetique |
CN201010699Y (zh) * | 2007-01-29 | 2008-01-23 | 河南中孚实业股份有限公司 | 铝电解槽不停电开槽装置 |
EP2080820A1 (fr) * | 2008-01-21 | 2009-07-22 | Alcan International Limited | Dispositif et procédé pour court-circuiter une ou plusieurs cellules dans un agencement de cellules d'électrolyse prévues pour la production d'aluminium |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2564200C1 (ru) * | 2014-06-03 | 2015-09-27 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Система для извлечения клиновидных шунтов при подключении электролизной ванны |
Also Published As
Publication number | Publication date |
---|---|
AU2011273335B2 (en) | 2014-03-20 |
AR081676A1 (es) | 2012-10-10 |
US20130098755A1 (en) | 2013-04-25 |
FR2961828A1 (fr) | 2011-12-30 |
CA2792945A1 (fr) | 2012-01-05 |
EP2585624A1 (fr) | 2013-05-01 |
CN102959133B (zh) | 2015-05-27 |
CN102959133A (zh) | 2013-03-06 |
EP2585624B1 (fr) | 2014-04-16 |
FR2961828B1 (fr) | 2012-08-10 |
RU2601018C2 (ru) | 2016-10-27 |
CA2792945C (fr) | 2013-12-03 |
ZA201209087B (en) | 2014-02-26 |
MY165055A (en) | 2018-02-28 |
AU2011273335A1 (en) | 2013-01-31 |
RU2013103483A (ru) | 2014-08-10 |
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