WO2013007894A2 - Aluminerie comprenant des conducteurs electriques en materiau supraconducteur - Google Patents
Aluminerie comprenant des conducteurs electriques en materiau supraconducteur Download PDFInfo
- Publication number
- WO2013007894A2 WO2013007894A2 PCT/FR2012/000283 FR2012000283W WO2013007894A2 WO 2013007894 A2 WO2013007894 A2 WO 2013007894A2 FR 2012000283 W FR2012000283 W FR 2012000283W WO 2013007894 A2 WO2013007894 A2 WO 2013007894A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- superconducting material
- electrolysis
- electrical
- electrical circuit
- electrical conductor
- Prior art date
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
-
- 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
-
- 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
- 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
- C25C3/20—Automatic control or regulation of cells
Definitions
- the present invention relates to an aluminum smelter, and more particularly to the electrical conductor system of an aluminum smelter.
- aluminum production plants include several hundred electrolysis tanks. These electrolysis tanks are traversed by a high electrolysis current of the order of several hundreds of thousands of amperes.
- the present invention aims to remedy all or part of the disadvantages mentioned above and to provide a solution to the problems encountered in an aluminum production plant by proposing an aluminum smelter whose manufacturing and operating costs are significantly reduced and with less space.
- the subject of the present invention is an aluminum smelter comprising:
- the magnetic shield enclosure may also be formed of superconducting material.
- Superconducting materials form high-performance magnetic screens when kept below their critical temperature.
- the electrical conductor of superconducting material is formed by a cable comprising a central core made of copper or aluminum, at least one fiber of superconducting material and a cryogenic envelope.
- the cryogenic envelope is traversed by a cooling fluid.
- said electrical conductor of superconducting material extends over a length equal to or greater than ten meters.
- the secondary electrical circuit may comprise one or more non-rectilinear portions (s).
- the flexibility of the electrical conductor in superconducting material makes it possible to avoid obstacles (thus to adapt to the spatial constraints of the aluminum smelter), but also to refine the compensation of the magnetic field locally.
- the secondary electrical circuit comprises two ends, each end of said secondary electrical circuit being connected to an electrical pole of a feed station distinct from the feed station of the main circuit.
- FIGS. 3, 4, 5, 6 and 7 are schematic top views of an aluminum smelter, in which at least one electrical conductor of superconductive material is used in a secondary electrical circuit,
- FIGS. 8 and 9 are schematic top views of an aluminum smelter, in which an electrical conductor of superconducting material is used in the main electrical circuit,
- the cathode 6 is electrically connected to cathode outlets 9 in the form of metal bars passing through the caisson 3, the cathode outlets 9 being themselves connected to electrical conductors 11 of tank to tank.
- the electric tank 11 conductors allow the flow of the electrolysis stream 11 from one electrolysis tank 2 to another.
- the electrolysis current 11 passes through the conductive elements of each electrolysis cell 2: firstly an anode 7, then the electrolytic bath 8, the liquid aluminum ply 10, the cathode 6 and finally the electrical conductors 1 1 of vat tub connected to the cathode outlets 9, to then convey the electrolysis current 11 to an anode 7 of the next electrolysis tank 2.
- the aluminum smelter 1 according to one embodiment of the present invention also comprises one or more secondary electrical circuits 16, 17, visible for example in FIG. 3. These secondary electrical circuits 16, 17 typically follow the lines F of tanks 2 of electrolysis. They make it possible to compensate for the magnetic field generated by the high value of the intensity of the electrolysis current 11, causing the instability of the electrolytic bath 8 and thus affecting the efficiency of the electrolysis tanks 2.
- a superconducting cable used to implement the present invention comprises a central core made of copper or aluminum, ribbons or fibers of superconducting material, and a cryogenic envelope.
- the cryogenic envelope may be formed by a sheath containing a cooling fluid, for example liquid nitrogen.
- the cooling fluid makes it possible to maintain the temperature of the superconducting materials at a temperature below their critical temperature, for example less than 100 K (Kelvin), or between 4 K and 80 K.
- This also makes it possible to locally adjust the compensation of the magnetic field in the smelter 1 by locally adjusting the position of the electrical conductor in superconducting material of the secondary electrical circuit or circuits 16, 17, as allowed by the curved portion 16a of the secondary electrical circuit 16 of the aluminum smelter 1 visible in FIG. 10.
- This flexibility makes it possible to move the electrical conductor in superconducting material with respect to its initial position, to correct the magnetic field by adapting to the evolution of the smelter 1 (for example increasing the intensity of the electrolysis current 11, or to use the results of the most recent magnetic correction calculations that are enabled by the new computer powers and general knowledge on the subject).
- the electrical conductors of superconducting material or secondary electrical circuits 16, 17 may be arranged under the electrolysis tanks 2. In particular, they can be buried. This arrangement is made possible by the small size of the electrical conductors of superconducting material on the one hand, and by the fact that they do not heat on the other hand. This provision would be difficult to achieve with electrical conductors made of aluminum or copper, because their size is greater at equal intensity, and because they heat and therefore need to be cooled (commonly in contact with the air and / or with specific cooling means).
- FIG. 11 shows, for the same aluminum plant 1, the possible locations of secondary electric circuits 16, 17 with electrical conductors of superconducting material and of secondary electrical circuits 16 ', 17' using aluminum electrical conductors.
- the secondary electrical circuits 16 ', 17' are placed on either side of an electrolysis cell 2. As illustrated in FIG. 11, the secondary electrical circuits 16 ', 17' prevent access to the electrolysis tanks 2, for example for maintenance operations. However, they can not be placed under the electrolysis tanks 2, such as the secondary electrical circuits 16, 17 with electrical conductors of superconducting material, because they have a larger footprint and need to be cooled. The secondary electrical circuits 16, 17 using electrical conductors of superconducting material may, however, be placed under the electrolysis tanks 2. Access to the electrolysis tanks 2 is thus not limited.
- the electrical conductors made of superconductive material may be contained partly inside a magnetic shield enclosure 20.
- This enclosure 20 may be a metal tube, for example steel. It can significantly reduce the magnetic field outside of this magnetic shield. This thus makes it possible to create, in the places where this chamber 20 has been placed, passage zones, in particular of vehicles the operation of which would have been disturbed by the magnetic field emanating from the electrical conductors made of superconducting material. This makes it possible to reduce the cost of these vehicles (which must otherwise be equipped with protection).
- This enclosure 20 may advantageously be placed around the electrical conductors of superconducting material located at the end of the line F, as shown in FIG. 6.
- the use of electrical conductors of superconducting material in an aluminum smelter 1 may be advantageous for sufficiently high conductor lengths.
- the use of electrical conductive material conductors is particularly advantageous for secondary electrical circuits 16, 17 for reducing the effect of the tank-to-cell magnetic field by means of loops of the type described in patent document EP0204647; when the intensity of the current flowing in the main electrical circuit 15 is particularly high, greater than 350 kA, and when the sum of the intensities flowing in the secondary electrical circuit, in the same direction as the current flowing in the main circuit, is between 20% and 100% of the main circuit current, and preferably 40% to 70%.
Landscapes
- 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)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2014104795/02A RU2014104795A (ru) | 2011-07-12 | 2012-07-10 | Плавильная установка получения алюминия, содержащая электропровода из сверхпроводящего материала |
BR112014000760A BR112014000760A2 (pt) | 2011-07-12 | 2012-07-10 | fundidor de alumínio, compreendendo condutores elétricos em material supracondutor |
CN201280034611.7A CN103649375A (zh) | 2011-07-12 | 2012-07-10 | 包含由超导材料制成的电导体的铝厂 |
US14/232,125 US20140209457A1 (en) | 2011-07-12 | 2012-07-10 | Aluminum smelter comprising electrical conductors made from a superconducting material |
CA2841847A CA2841847A1 (fr) | 2011-07-12 | 2012-07-10 | Aluminerie comprenant des conducteurs electriques en materiau supraconducteur |
EP12748727.0A EP2732076A2 (fr) | 2011-07-12 | 2012-07-10 | Aluminerie comprenant des conducteurs electriques en materiau supraconducteur |
AU2012282374A AU2012282374A1 (en) | 2011-07-12 | 2012-07-10 | Aluminium smelter comprising electrical conductors made from a superconducting material |
IN886CHN2014 IN2014CN00886A (fr) | 2011-07-12 | 2012-07-10 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1102199A FR2977898A1 (fr) | 2011-07-12 | 2011-07-12 | Aluminerie comprenant des cuves a sortie cathodique par le fond du caisson et des moyens de stabilisation des cuves |
FR1102198 | 2011-07-12 | ||
FR1102199 | 2011-07-12 | ||
FR1102198A FR2977899A1 (fr) | 2011-07-12 | 2011-07-12 | Aluminerie comprenant des conducteurs electriques en materiau supraconducteur |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2013007894A2 true WO2013007894A2 (fr) | 2013-01-17 |
WO2013007894A3 WO2013007894A3 (fr) | 2013-03-28 |
Family
ID=46717874
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2012/000282 WO2013007893A2 (fr) | 2011-07-12 | 2012-07-10 | Aluminerie comprenant des conducteurs electriques en materiau supraconducteur |
PCT/FR2012/000283 WO2013007894A2 (fr) | 2011-07-12 | 2012-07-10 | Aluminerie comprenant des conducteurs electriques en materiau supraconducteur |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2012/000282 WO2013007893A2 (fr) | 2011-07-12 | 2012-07-10 | Aluminerie comprenant des conducteurs electriques en materiau supraconducteur |
Country Status (16)
Country | Link |
---|---|
US (2) | US9598783B2 (fr) |
EP (2) | EP2732076A2 (fr) |
CN (2) | CN103649375A (fr) |
AR (2) | AR087122A1 (fr) |
AU (2) | AU2012282374A1 (fr) |
BR (2) | BR112014000573B1 (fr) |
CA (2) | CA2841300C (fr) |
DK (1) | DK179966B1 (fr) |
EA (1) | EA201490256A1 (fr) |
IN (1) | IN2014CN00886A (fr) |
MY (1) | MY166183A (fr) |
NO (1) | NO2732075T3 (fr) |
RU (2) | RU2764623C2 (fr) |
SI (1) | SI2732075T1 (fr) |
TR (1) | TR201807790T4 (fr) |
WO (2) | WO2013007893A2 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3009564A1 (fr) * | 2013-08-09 | 2015-02-13 | Rio Tinto Alcan Int Ltd | Aluminerie comprenant un circuit electrique de compensation |
FR3032459B1 (fr) * | 2015-02-09 | 2019-08-23 | Rio Tinto Alcan International Limited | Aluminerie et procede de compensation d'un champ magnetique cree par la circulation du courant d'electrolyse de cette aluminerie |
FR3042509B1 (fr) * | 2015-10-15 | 2017-11-03 | Rio Tinto Alcan Int Ltd | Serie de cellules d'electrolyse pour la production d'aluminium comportant des moyens pour equilibrer les champs magnetiques en extremite de file |
FR3115942A1 (fr) | 2020-11-05 | 2022-05-06 | Nexans | Boîtier cryostat pour circuit câblé supraconducteur, et circuits câblés supraconducteurs associés |
FR3116147B1 (fr) | 2020-11-10 | 2023-04-07 | Nexans | Dispositif de connexion électrique pour fils supraconducteurs |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2425482A1 (fr) | 1978-05-11 | 1979-12-07 | Pechiney Aluminium | Procede de compensation du champ magnetique induit par la file voisine dans les series de cuves d'electrolyse a haute intensite |
FR2469475A1 (fr) | 1979-11-07 | 1981-05-22 | Pechiney Aluminium | Procede et dispositif pour la suppression des perturbations magnetiques dans les cuves d'electrolyse a tres haute intensite placees en travers |
EP0204647A1 (fr) | 1985-06-05 | 1986-12-10 | Aluminium Pechiney | Dispositif de connexion entre cuves d'électrolyse à tres haute intensité pour la production d'aluminium, comportant un circuit d'alimentation et un circuit indépendant de correction du champ magnétique |
FR2868436A1 (fr) | 2004-04-02 | 2005-10-07 | Aluminium Pechiney Soc Par Act | Serie de cellules d'electrolyse pour la production d'aluminium comportant des moyens pour equilibrer les champs magnetiques en extremite de file |
EP1812626A1 (fr) | 2004-09-23 | 2007-08-01 | Norsk Hydro Asa | Procede de connexion electrique et de compensation magnetique de cuves d'electrolyse d'aluminium, et systeme associe |
CA2585218A1 (fr) | 2006-04-18 | 2007-10-18 | Russian Engineering Company, L.L.C. | Dispositif de compensation du champ magnetique induit par une rangee voisine de cuves d'electrolyse de forte puissance raccordees en serie |
WO2008011184A2 (fr) | 2006-07-21 | 2008-01-24 | American Superconductor Corporation | Conducteurs de fort courant, compacts, souples, contenant des bandes supraconductrices à haute température |
US20090247412A1 (en) | 2008-03-28 | 2009-10-01 | American Superconductor Corporation | Superconducting cable assembly and method of assembly |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB797428A (en) * | 1954-03-10 | 1958-07-02 | Vaw Ver Aluminium Werke Ag | Plant for carrying out fusion electrolysis |
US4222830A (en) * | 1978-12-26 | 1980-09-16 | Aluminum Company Of America | Production of extreme purity aluminum |
EP0905284B1 (fr) | 1994-09-08 | 2002-04-03 | MOLTECH Invent S.A. | Cuve d'électrolyse d'aluminium à cathode drainée |
US5831489A (en) * | 1996-09-19 | 1998-11-03 | Trw Inc. | Compact magnetic shielding enclosure with high frequency feeds for cryogenic high frequency electronic apparatus |
CA2287362A1 (fr) | 1997-05-23 | 1998-11-26 | Moltech Invent S.A. | Cellule de production d'aluminium et cathode |
EP1860666A4 (fr) * | 2005-03-14 | 2012-02-29 | Sumitomo Electric Industries | Cable supraconducteur |
CA2581348A1 (fr) * | 2006-04-10 | 2007-10-10 | Sumitomo Electric Industries, Ltd. | Cable supraconducteur |
NO332480B1 (no) | 2006-09-14 | 2012-09-24 | Norsk Hydro As | Elektrolysecelle samt fremgangsmate for drift av samme |
CN101255567B (zh) * | 2007-12-17 | 2010-08-25 | 中国铝业股份有限公司 | 一种优化铝电解槽磁场的方法 |
US9431864B2 (en) * | 2011-03-15 | 2016-08-30 | Siemens Energy, Inc. | Apparatus to support superconducting windings in a rotor of an electromotive machine |
-
2012
- 2012-07-10 CN CN201280034611.7A patent/CN103649375A/zh active Pending
- 2012-07-10 IN IN886CHN2014 patent/IN2014CN00886A/en unknown
- 2012-07-10 US US14/232,168 patent/US9598783B2/en active Active
- 2012-07-10 RU RU2018140052A patent/RU2764623C2/ru active
- 2012-07-10 RU RU2014104795/02A patent/RU2014104795A/ru not_active Application Discontinuation
- 2012-07-10 AU AU2012282374A patent/AU2012282374A1/en not_active Abandoned
- 2012-07-10 DK DKPA201370794A patent/DK179966B1/en not_active IP Right Cessation
- 2012-07-10 NO NO12748726A patent/NO2732075T3/no unknown
- 2012-07-10 SI SI201231308T patent/SI2732075T1/en unknown
- 2012-07-10 US US14/232,125 patent/US20140209457A1/en not_active Abandoned
- 2012-07-10 CA CA2841300A patent/CA2841300C/fr active Active
- 2012-07-10 BR BR112014000573-7A patent/BR112014000573B1/pt not_active IP Right Cessation
- 2012-07-10 MY MYPI2014700059A patent/MY166183A/en unknown
- 2012-07-10 EP EP12748727.0A patent/EP2732076A2/fr not_active Withdrawn
- 2012-07-10 WO PCT/FR2012/000282 patent/WO2013007893A2/fr active Application Filing
- 2012-07-10 BR BR112014000760A patent/BR112014000760A2/pt not_active IP Right Cessation
- 2012-07-10 EA EA201490256A patent/EA201490256A1/ru unknown
- 2012-07-10 EP EP12748726.2A patent/EP2732075B1/fr active Active
- 2012-07-10 CA CA2841847A patent/CA2841847A1/fr not_active Abandoned
- 2012-07-10 WO PCT/FR2012/000283 patent/WO2013007894A2/fr active Application Filing
- 2012-07-10 AU AU2012282373A patent/AU2012282373B2/en active Active
- 2012-07-10 CN CN201280034686.5A patent/CN103687982B/zh active Active
- 2012-07-10 TR TR2018/07790T patent/TR201807790T4/tr unknown
- 2012-07-11 AR ARP120102506A patent/AR087122A1/es active IP Right Grant
- 2012-07-11 AR ARP120102508A patent/AR087124A1/es not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2425482A1 (fr) | 1978-05-11 | 1979-12-07 | Pechiney Aluminium | Procede de compensation du champ magnetique induit par la file voisine dans les series de cuves d'electrolyse a haute intensite |
FR2469475A1 (fr) | 1979-11-07 | 1981-05-22 | Pechiney Aluminium | Procede et dispositif pour la suppression des perturbations magnetiques dans les cuves d'electrolyse a tres haute intensite placees en travers |
EP0204647A1 (fr) | 1985-06-05 | 1986-12-10 | Aluminium Pechiney | Dispositif de connexion entre cuves d'électrolyse à tres haute intensité pour la production d'aluminium, comportant un circuit d'alimentation et un circuit indépendant de correction du champ magnétique |
FR2868436A1 (fr) | 2004-04-02 | 2005-10-07 | Aluminium Pechiney Soc Par Act | Serie de cellules d'electrolyse pour la production d'aluminium comportant des moyens pour equilibrer les champs magnetiques en extremite de file |
EP1812626A1 (fr) | 2004-09-23 | 2007-08-01 | Norsk Hydro Asa | Procede de connexion electrique et de compensation magnetique de cuves d'electrolyse d'aluminium, et systeme associe |
CA2585218A1 (fr) | 2006-04-18 | 2007-10-18 | Russian Engineering Company, L.L.C. | Dispositif de compensation du champ magnetique induit par une rangee voisine de cuves d'electrolyse de forte puissance raccordees en serie |
WO2008011184A2 (fr) | 2006-07-21 | 2008-01-24 | American Superconductor Corporation | Conducteurs de fort courant, compacts, souples, contenant des bandes supraconductrices à haute température |
US20090247412A1 (en) | 2008-03-28 | 2009-10-01 | American Superconductor Corporation | Superconducting cable assembly and method of assembly |
Non-Patent Citations (1)
Title |
---|
MAGNE RUNDE: "Application of High-Tc Superconductors in Aluminum Electrolysis Plants", IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, vol. 5, no. 2, June 1995 (1995-06-01) |
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