EP2212450A1 - Procede et dispositif pour detacher les timbales des pieds d'anodes, notamment d'anodes utilisees pour la production d'aluminium par electrolyse ignee - Google Patents
Procede et dispositif pour detacher les timbales des pieds d'anodes, notamment d'anodes utilisees pour la production d'aluminium par electrolyse igneeInfo
- Publication number
- EP2212450A1 EP2212450A1 EP08872038A EP08872038A EP2212450A1 EP 2212450 A1 EP2212450 A1 EP 2212450A1 EP 08872038 A EP08872038 A EP 08872038A EP 08872038 A EP08872038 A EP 08872038A EP 2212450 A1 EP2212450 A1 EP 2212450A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abutment
- stop
- anode
- logs
- log
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
-
- 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
-
- 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
-
- 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
- Y10T29/49723—Repairing with disassembling including reconditioning of part
- Y10T29/49725—Repairing with disassembling including reconditioning of part by shaping
- Y10T29/49726—Removing material
-
- 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
- Y10T83/00—Cutting
- Y10T83/04—Processes
-
- 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
- Y10T83/00—Cutting
- Y10T83/748—With work immobilizer
Definitions
- the invention relates to the production of aluminum by igneous electrolysis. It relates more particularly to a method for removing the metal sleeves attached to the feet of the rods of anodes to reuse said rods after cleaning and to recycle the material of the removed sockets.
- Aluminum is produced industrially by igneous electrolysis, that is to say by electrolysis of alumina in solution in a bath of molten cryolite, called electrolyte bath, according to the Hall-Héroult process.
- the electrolyte bath is contained in electrolysis cells which comprise a steel box lined internally with refractory and / or insulating materials and a cathode assembly located at the bottom of the tank.
- Anodes typically of carbonaceous material, are attached to a superstructure provided with means for moving them vertically, said anodes being consumed progressively during the electrolysis process.
- the assembly formed by an electrolytic cell, its anodes and the electrolyte bath is called an electrolysis cell.
- the anodes comprise a conductive metal rod, associated with an attachment device on said superstructure and with an electrical connection device, and a block of carbon material which constitutes the body of the anode and which is introduced inside the electrolyte bath.
- the connection between the anode rod and the body of carbon material is via a foot. typically made of steel, integral with the base of the rod and which generally has a form of candelabrum turned, each branch of the candelabrum being associated with a cylindrical end whose axis is parallel to the rod and that is called "log" .
- logs are introduced into recesses made on the upper face of the carbon material block and the interstices between the logs and the bores are filled by casting a molten metal, typically cast iron.
- the metal bushings thus produced - also called “timbales” - make it possible to ensure a good mechanical attachment and a good electrical connection between the rod and the block of carbon material.
- an electrolysis plant requires the regular replacement of the anodes that are consumed throughout the production of aluminum.
- the regeneration of a spent anode is an economic imperative operation that consists of removing the cooled electrolyte bath remained stuck on the butt. anode (residual carbon block), then remove the butt and timpani ' for recycling, and finally to clean, and straighten if necessary, the assembly constituted by the stem and the foot of anode for the purpose of associate with a new block of carbon material and thus obtain a new anode.
- some new anodes typically 1 to 2% of them
- German patent application DE 44 10 599 describes a device for carrying out the disassembly and disassembly around each log of a foot of anode: a clamp is
- W closes to partially surround said log, without touching it, its lower face acting as an axial stop opposing the movement of the driven timbale, via the log, by a punch.
- the stop device and the punch are movable relative to the log and can move towards each other by means of an actuator. Thanks to a recess that is created in the
- Such a disassembly device associated or not with a disintegration device, has the advantage of only soliciting the anode rod locally, the stripping forces being picked up directly by the upper part of the clamp which acts as a counter -support.
- this device particularly bulky, can work on a single log, which has the disadvantage of requiring a significant time to completely undress an anode rod.
- Torsional coupling requires to separate the disassembly of the disassembly, that is to say to specifically use a specialized machine in the unclogging and a specialized machine in the disassembly.
- the risk of damage to the anode feet does not disappear, even if it changes in nature: the torque is transmitted in a fragile area of the log, where the latter is welded to the transverse branch.
- US Patent 5956842 discloses a degreaser with vertical displacement punches associated with axial stops. They are slender punches placed under the logs and in their alignment, of smaller diameter than the logs and acting upwards. When the punches rise, they first encounter the butt and then, after unraveling, the underside of the logs so that, the upper face of the timpani being blocked by a stop wall, the timbales are deformed and detach from logs, while remaining trapped by slender punches.
- the abutment wall is constituted by the lower face of clips which close individually, around each log without touching it.
- the drawback associated with this' solution lies in the importance of the effort to achieve simultaneous thimble of all logs.
- the clamps themselves being supported on a common plate, the recovery of stripping efforts is not really individualized so that the anode foot remains sensitive to the imbalance of stress resulting from the imperfectly symmetrical geometry anode foot.
- the object of the invention is to define a method for removing worn anodes (or new rejects) which does not have the drawbacks presented above, in particular which enables the dismantling of all the logs of one foot. anode in one step and with a single machine, without requiring the use of considerable effort, without requiring the introduction of a complex electronic control system, while aiming at a risk of damage to the anode foot also as low as possible.
- the machine used to implement this method could also be used to implement the disintegration.
- the remains of anode blocks and timbales could advantageously be sorted out of the same machine, as in FR 2894988, to be recycled directly to the anode manufacturing workshops.
- a first object according to the invention is a method for removing in a single step the n timbales attached to the n logs of an anode rod foot, n being an integer greater than or equal to 3, said method comprising minus the following steps: a) placing said anode rod foot between an abutment device and a driving device, said driving device being movable by an actuator towards said device abutment device, said abutment device surrounding, at least partially, each of the n logs of said anode rod foot and having an abutment surface blocking the advance of the corresponding timbale;
- the driving device can be moved using at least one actuator, typically a hydraulic cylinder.
- Moving can be a simple tr ⁇ nsl ⁇ tion or, as in DE 44 10 599, a rotation about a horizontal axis.
- the displacement can take place in any substantially constant direction, generally defined by the torque formed by the relative position of the driving device relative to the
- W air vertically, that is to say, attached to the conveyor by the upper end of its rod.
- its rod is held by holding means, typically centering clamps, which allow axial movement of the rod, the stem foot having to be able to move in this direction when it is reached by the device
- the holding means are advantageously provided, in contact with the rod, pads with low coefficient of friction
- the driving device comprises a plurality of n punches 0 which move along the axes of the n logs. In a preferred embodiment of the invention, they advance simultaneously, typically mounted on a transverse beam or several integral transverse beams, moved (s) by one or more actuators, for example hydraulic cylinders.
- the abutment device surrounds, at least partially, each of the n logs of said anode stem foot: typically, this abutment device is in the form of a part or a set of several parts bearing, directly or indirectly, on one or more elements fixed to the frame 30 of the machine and having, at each log, a notch surrounding the log which allows the latter to move axially in the tr ⁇ vers ⁇ nt and a stop face opposing the axial advance of the timbale associated with the corresponding log.
- the indentation is in the form of a bore or a bore portion which at least partially surrounds the log, for example with a diameter greater than - at least 1 mm - the outer diameter of the timpani.
- a lateral cavity corresponding to the passage of the transverse arm of the rod foot supporting said log, can be connected to this bore to complete said notch.
- Said bore is surmounted, in its upper part, with a shoulder or an internal projection, m of radial height typically equal to the thickness of the timpani, and whose lower face acts as an abutment surface opposing the advance of the kettledrum.
- the stop device comprises according to the invention at least two abutment surfaces located at a different level with respect to the advance of the driving device, so that some timpani are locked during the advance of the punch and thus be disconnected from their logs while other timbales, not immobilized, remain fixed on their respective logs. This reduces the stripping effort.
- the anode foot then has p pairs of associated logs called "peripherals", in that none of them does not pass through the axis of the rod even if some of them are close to it.
- peripheral logs p pairs of associated logs, symmetrical with respect to the axis of the rod, and possibly one axial log.
- the abutment device comprises at least one first abutment surface intended to block the advance of the timpani fixed on two associated peripheral rounders, symmetrical with respect to the axis of the stem and a second abutment surface, offset. axially with respect to the first abutment surface, intended to block either a second pair of timpani
- each pair of associated peripheral logs corresponds to a specific level of stop, axially offset from that of the other 0 pairs of peripheral logs and, if it exists, that of the axial log.
- the separation of the timbales and logs results from the immobilization of the timbale while the punch continues its progress.
- An axial force is generated in the timbale in response to the force transmitted by the driver via the punch and the log. It is created in the thickness of the kettledrum, with probably a maximum intensity in the vicinity of this contact surface, a scission stress which, as the punch advances, increases until reaching a critical value, at from which the kettledrum is deformed and detached from the outer surface of the log.
- the axial offset is such that, during the displacement of the driving device, the "first" timpani blocked by a first abutment surface have time to be detached from the logs to which they were attached before other timbales are blocked by a second abutment surface.
- the "first" timbales are not yet exploded and ejected from the anode rod before other timbales are blocked by a second abutment surface.
- this offset depends on the geometries involved, in particular that of the stem, the logs and the contact surface between the timbales and the logs.
- the axial offset between two abutment surfaces must be at least equal to a value which is of the order of 20 mm.
- the axial offset is advantageously between 5 and 50 mm, preferably between 10 and 30 mm.
- each individual abutment unit comprises a fixed abutment wall integral with the frame of the machine, said abutment wall opposing the axial advance of the timpani associated with the corresponding log, and a device mounted floating relative to the frame.
- said floating mounted device being put in place on the timpani when it comes into contact with it so that the contact surface with the upper end of the timbale is as large as possible, said placing being performed, that is to say completed or substantially advanced, before, driven by the timbale, said floating mounted device itself arrives in abutment against said abutment wall integral with the frame of the machine.
- Such a floating mounted device constitutes an intermediate piece that allows the stop device to better mechanically withstand jolts due to geometry deviations, especially timpani.
- the stop units may comprise clamps whose lower face is, once the clamp is closed around a log, an abutment surface opposing the displacement of the corresponding timbale; several embodiments are possible: a) The clamps are supported by one of their face on one or more elements integral with the frame, located at the same level with respect to the advance of the driving device, and they have different thicknesses, so that they present their other face as a stop surface with a different level.
- clamps have the same thickness but are supported at different levels on elements integral with the frame; c) To avoid that some clamps are too thick, we combine the two previous solutions: the clamps are supported on one or more elements integral with the frame, located at levels relative to the advance of the driver, and they have different thicknesses, the differences in level of the elements integral with the frame and the thicknesses of the clamps were defined so that the clamps have their other face as a stop surface with a different level. As indicated above these clamps are advantageously mounted floating relative to the frame of the machine.
- the stop units may comprise, as in FR 2894988, sets of jaws, typically pairs of jaws, which pivot about horizontal axes and which, when brought together, form a kind of sleeve which surrounds the log and whose end bottom is provided with a stop surface opposing the movement of the timbales.
- sets of jaws typically pairs of jaws, which pivot about horizontal axes and which, when brought together, form a kind of sleeve which surrounds the log and whose end bottom is provided with a stop surface opposing the movement of the timbales.
- the possible embodiments are identical to modes a), b) and c) described above for the clamps, the thickness of the clamps being replaced here by the height of the sleeves.
- the driving device comprises n punches which move along the axes of the n logs.
- they are mounted on a transverse beam, common (case aligned logs) or more transverse beams' arranged symmetrically (case arranged symmetrically logs) relative to the median plane parallel to the long side of the anode block.
- This beam or these beams, integral with each other, is (are) moved (s) by one or more actuators, for example hydraulic cylinders.
- the punches reach the lower ends of the logs at about the same time.
- the timbales are attacked two by two, symmetrically with respect to the axis of the anode rod.
- Another object of the invention is a disassembly machine for carrying out the method described above, able to strip the logs of both used anodes and new anodes rejected, comprising a stop device and an attack device.
- said driving device being movable by an actuator towards said abutment device, said abutment device surrounding, at least partially, each log of the foot of the anode rod and comprising at least two surfaces stoppers separated from each other by an axial distance such that the timbales blocked by a first abutment surface are disconnected from the logs to which they were attached before the other timbales are blocked by the other abutment surface.
- This machine may have the additional features or variants described above to illustrate the process.
- Another object of the invention is therefore a method for extracting the anode butt and the timbales attached to a worn anode, comprising the following steps: a) placing the butt of the spent anode between a device of abutment and a driving device, said driving device being movable with the aid of an actuator towards said abutment device, said abutment device comprising an abutment device for butts having a first abutment, referred to as an abutment butt stopper blocking the advancement of the butt, said stop device also comprising an abutment device of the timpani surrounding, at least partially, each log and having a second abutment, called "timpani stop", which blocks the advance of said timpani; b) moving the spent anode until the butt is blocked by the first stop; c) moving the driver in the direction of the stop device
- the axial distance between the nearest timpani abutment surface of the butt stop surface and the butt stop surface ie the distance minimum axial distance between the abutment stop surfaces and the abutment stop surface, which must be greater than a value, corresponding substantially to the height of the timpani, that is to say, typically greater than half the height of said timpani and preferably at least equal to said height.
- Another object of the invention is a degrading machine for implementing the method described above, for extracting the anode butt and the timbales hooked to a worn anode or a new scraped anode, comprising a stop device and a driving device, said driving device being movable by an actuator towards said abutment device, said abutment device comprising an abutment device of butts having a first abutment, referred to as a "abutment".
- said stop device also comprising a timpani abutment device surrounding, at least partially, each log and having a second stop, called" timpani stop ", which blocks the advance of said timpani characterized in that the abutment device of the timbales comprises at least two abutment surfaces separated from one another by an axial distance such that the ti mbales blocked by a first abutment surface are disconnected from the logs to which they were attached before other timbales are blocked by the other abutment surface.
- This machine may have the additional features or variants described above to illustrate the process.
- FIG. 1 schematically represents, in perspective, a unstacking and dismounting machine implementing the disassembly method according to the invention, associated or not with a disintegration. As illustrated, this machine is deprived of part of its elements to visualize the anode rod to be stripped and the attack device.
- FIG. 2 completes the illustration of FIG. 1 and diagrammatically details, in dive perspective, certain elements of the machine, including in particular the stop device.
- FIG. 3 completes the illustrations of the preceding figures by showing in front view, half of the logs still coated with the timpani, the portion of the stop device and the portion of the attack device associated with these logs.
- FIGS. 4a, 4b and 4c schematically illustrate, in front view as W in FIG. 3 and in top view, three successive stages of the dismounting such that it can be implemented using the machine illustrated in FIGS. previous figures.
- anode rod 110 after removal. It is a 0 metal frame composed of a rod 120 of conductive metal, elongated along an axis 100, and a foot 121 made of steel. The foot 121 is joined to the base of the rod 120 at a welded zone commonly called "clad" 125.
- the foot is in the form of an inverted candelabrum, each branch 123 of the candelabrum being associated with a log 122.
- the foot 121 of the anode rod is a hexapod: it comprises ⁇ logs 122.
- the Mechanical and electrical connection between the carbon body and each log is provided by a cast iron timpani 130.
- the anode rod 110 is introduced vertically into the unclamping machine, via an overhead conveyor, not shown.
- the anode rod foot 121 is inserted between an abutment device 200 and an etching device 300.
- the driving device 300 is driven by a set of cylinders 340 acting vertically.
- the cylinders are offset and act on a thick double beam 310 which is actuated by the two cylinders 340 which act at each end of the double beam thus providing a free space and without obstacle under said beam , able to collect the waste that was detached from the anode rod and fell.
- the driver has punches 320 which are substantially in alignment with each log 122.
- the punches 320 have a shallow truncated cone shape with a rounded end 321 which has a smaller diameter of attack than logs 122.
- the abutment device 200 is a set of six individualized units arranged substantially symmetrically with respect to the axis 100 of the anode rod. Three units are represented here. Each is present in the form of a clamp 210, the jaws 220 are pivoted about an axis vertical and have walls vis-à-vis provided with indentations 230 complementary, which together, when said clamp is in the closed position, constitutes a notch which has an axis aligned with that of the log 122 and which almost completely surrounds said log without touching it so that said log can move freely in the vertical direction.
- This new machine is fed with anode rods 110 to be dislodged via the main overhead conveyor (not shown). There is no need for auxiliary equipment (s).
- Two pneumatic positioning tongs 400 position an anode rod 110 vertically on its working axis when it has been introduced into the machine by the overhead conveyor.
- Six independent clamps 210 are arranged respecting the symmetries of the hexapod. Three clamps on the same side of a plane of symmetry are illustrated in Figures 3 and 4 (210.1, 210.2, 210.3).
- the six clamps are actuated by six hydraulic cylinders. They are mounted floating relative to the fixed frame of the machine in order to accept the geometrical defects of positioning the logs together. These clamps are self-locked in the closed position.
- each pair of pliers having different thicknesses: m •
- the 2 pliers 210.2 are the thickest; they are intended for stripping central logs 130.2: their lower faces act as abutment surfaces 211.2, opposing the advance timpani 130.2.
- the 2 clamps 120.3 have an intermediate thickness and are intended for stripping the two outer logs 130.3 located on a diagonal of
- stops installed on the same horizontal plane integral with the frame of the machine, not shown, ensure the vertical locking of the clamps 210 during the disassembly operation. These stops are constituted by notched tubes 25 allowing the passage of the log support beams during the rise of the rod during the disassembly phase.
- the drive device is provided with guiding shoes 350 which slide against w vertical supports integral with the frame of the machine, not shown in the figures.
- the "dismounting" operation is carried out in the following order:
- the centering clamps 400 rod are then open in order to avoid parasitic stresses that could be induced in the clad 125 during
- the hexapods ensure the final unmounting by disengaging the timpani 130.1 from the logs 122.1.
- the timbales burst into several pieces that fall and are collected in the lower part by a hopper 500 which feeds a conveyor 600.
- the wastes of 0 cast are sent here to the sealing workshop, where new anode blocks are attached to recycled anode rods.
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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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0707989A FR2923495B1 (fr) | 2007-11-14 | 2007-11-14 | Procede et dispositif pour detacher les timbales des pieds d'anodes, notamment d'anodes utilisees pour la production d'aluminium par electrolyse ingee. |
PCT/FR2008/001574 WO2009098367A1 (fr) | 2007-11-14 | 2008-11-07 | Procede et dispositif pour detacher les timbales des pieds d'anodes, notamment d'anodes utilisees pour la production d'aluminium par electrolyse ignee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2212450A1 true EP2212450A1 (fr) | 2010-08-04 |
EP2212450B1 EP2212450B1 (fr) | 2012-08-08 |
Family
ID=39477806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080872038 Active EP2212450B1 (fr) | 2007-11-14 | 2008-11-07 | Procede et dispositif pour detacher les timbales des pieds d'anodes, notamment d'anodes utilisees pour la production d'aluminium par electrolyse ignee |
Country Status (9)
Country | Link |
---|---|
US (1) | US8099848B2 (fr) |
EP (1) | EP2212450B1 (fr) |
CN (1) | CN102317507A (fr) |
AU (1) | AU2008350084B2 (fr) |
CA (1) | CA2706320C (fr) |
FR (1) | FR2923495B1 (fr) |
RU (1) | RU2496921C2 (fr) |
WO (1) | WO2009098367A1 (fr) |
ZA (1) | ZA201003045B (fr) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL134536C (fr) * | 1968-09-19 | |||
RU2086709C1 (ru) * | 1993-11-18 | 1997-08-10 | Акционерное общество "Красноярский алюминиевый завод" | Устройство для удаления с держателя отработанного анода алюминиевого электролизера |
DE4410599A1 (de) | 1994-03-26 | 1995-09-28 | Scharf Westfalia Maschinenfabr | Vorrichtung zum Entfernen von Restanoden und/oder Gußhülsen |
DE4414271B8 (de) | 1994-04-23 | 2008-10-02 | Outotec Oyj | Vorrichtung zum Ablösen von Gußhülsen von Anodenstangen |
AUPN111195A0 (en) * | 1995-02-14 | 1995-03-09 | Comalco Aluminium Limited | Butt and thimble press |
DE19525797B4 (de) * | 1995-07-15 | 2004-04-08 | Outokumpu Oyj | Vorrichtung zum Ablösen von Gußhülsen von Anodenstangen |
WO2001057291A1 (fr) * | 2000-02-01 | 2001-08-09 | Jervis B. Webb Company | Procede et dispositif servant a enlever les cosses des extremites d"une anode |
FR2894988B1 (fr) * | 2005-12-16 | 2008-01-18 | Ecl Soc Par Actions Simplifiee | Procede permettant d'enlever les restes d'anodes acrroches aux anodes usees provenant des series d'electrolyse ignee |
-
2007
- 2007-11-14 FR FR0707989A patent/FR2923495B1/fr not_active Expired - Fee Related
-
2008
- 2008-11-07 WO PCT/FR2008/001574 patent/WO2009098367A1/fr active Application Filing
- 2008-11-07 EP EP20080872038 patent/EP2212450B1/fr active Active
- 2008-11-07 AU AU2008350084A patent/AU2008350084B2/en not_active Ceased
- 2008-11-07 CN CN2008801158829A patent/CN102317507A/zh active Pending
- 2008-11-07 US US12/743,087 patent/US8099848B2/en not_active Expired - Fee Related
- 2008-11-07 CA CA2706320A patent/CA2706320C/fr not_active Expired - Fee Related
- 2008-11-07 RU RU2010123922/02A patent/RU2496921C2/ru not_active IP Right Cessation
-
2010
- 2010-04-30 ZA ZA2010/03045A patent/ZA201003045B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009098367A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2008350084A1 (en) | 2009-08-13 |
WO2009098367A1 (fr) | 2009-08-13 |
US20100229700A1 (en) | 2010-09-16 |
EP2212450B1 (fr) | 2012-08-08 |
ZA201003045B (en) | 2011-08-31 |
US8099848B2 (en) | 2012-01-24 |
CA2706320C (fr) | 2016-06-21 |
RU2010123922A (ru) | 2011-12-20 |
CN102317507A (zh) | 2012-01-11 |
FR2923495A1 (fr) | 2009-05-15 |
AU2008350084B2 (en) | 2012-07-19 |
RU2496921C2 (ru) | 2013-10-27 |
FR2923495B1 (fr) | 2009-11-20 |
CA2706320A1 (fr) | 2009-08-13 |
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