EP0342033A1 - Anordnung zur Kompensation von schädlichen magnetischen Feldern bei quergestellten Elektrolysezellen - Google Patents

Anordnung zur Kompensation von schädlichen magnetischen Feldern bei quergestellten Elektrolysezellen Download PDF

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Publication number
EP0342033A1
EP0342033A1 EP89304777A EP89304777A EP0342033A1 EP 0342033 A1 EP0342033 A1 EP 0342033A1 EP 89304777 A EP89304777 A EP 89304777A EP 89304777 A EP89304777 A EP 89304777A EP 0342033 A1 EP0342033 A1 EP 0342033A1
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EP
European Patent Office
Prior art keywords
cells
row
current
cell
compensation
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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
Application number
EP89304777A
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English (en)
French (fr)
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EP0342033B1 (de
Inventor
Hans Georg Tidemann Nebell
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Norsk Hydro ASA
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Norsk Hydro ASA
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Publication date
Application filed by Norsk Hydro ASA filed Critical Norsk Hydro ASA
Publication of EP0342033A1 publication Critical patent/EP0342033A1/de
Application granted granted Critical
Publication of EP0342033B1 publication Critical patent/EP0342033B1/de
Anticipated expiration legal-status Critical
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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
    • 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

Definitions

  • This invention relates to a potline for the electrolytic production of aluminium which provides compensation for the unwanted electromagnetic influence from the rectifier and the end cells of the potline.
  • a typical arrangement of the aluminium electrolytic cells is to position the cells transversely in rows with the electric current being conducted from one cell to the next and from one row to the next. The direction of the current in one row will be opposite to the current direction in the neighbouring row.
  • the present electrolytic process utilizes a current of 200 to 300 kA. This current induces large magnetic fields affecting the neighbouring rows and cells causing great problems because the magnetic fields influence the molten metal forming the cathode in the bottom of each cell.
  • the distance between two rows of cells in a potline is normally such that the only effect on the neighbouring row will be the vertical component of the magnetic field.
  • a higher current is normally passed around or under the short end facing the neighbouring row rather than to other parts of the transversely arranged electrolysis cells.
  • the first and last cell (end cells) of every row are the cells which are most exposed to the electromagnetic field, because they are influenced by the magnetic field both from the neighbouring row and from the busbars conducting the current from one end of the potline area back to the rectifier and, at the other end, conducting the current from one row to the next (between the end cells).
  • This influence can be reduced by increasing the distance between the rectifier and the potline, and by increasing the distance from the last cell in a row to the transverse busbar leading the current to the neighbouring row. This is however an expensive method, giving unnecessary long busbars and requiring a large area.
  • a potline for the electrolytic production of aluminium comprises at least two rows of reduction cells with the cells arranged tranversely in each row and is characterised in that the electric current is conducted to and from the end cells by three or more asymmetrically arranged supply bars via a distribution bar on each end cell, so that a net current is formed in the distribution bar, providing compensation for the magnetic influence from the rectifier field and end cell field.
  • This arrangement reduces the installation costs by reducing the busbar length and saves space by reducing the distance between the rectifier and the potline at one end and between the transverse busbar and the potline at the other end of the potline.
  • the drawing illustrates the end cells of the row of cells and not the whole row of cells. It is also understood that by using well-known technology the rows per se are stabilized with respect to influence from the neighbouring row.
  • Electric current from the rectifier L is carried in three or more supply bars T to the first end cells in row 1, and is connected asymmetrically to a distribution bar A comprising four or more risers S being symetrically positioned with respect to the cell.
  • This arrangement will give a net electric current in the distribution bar A conducted from right to left and provides compensation for the first end cell in row 1.
  • the electric current is thereafter conducted from the cathode of an upstream cell to the anode of the next downstream cell, as normal, and to the other end cell in row 1.
  • the electric current is conducted from this second end cell to a distribution bar B.
  • the current is then conducted from the distribution bar to the first cell in the neighbouring row 2 seen in the current direction via three or more supply bars T asymmetrically positioned with respect to the midpoint of the distribution bar B.
  • This arrangement gives a net current in the distribution bar B from left to right and provides the necessary extra compensation for this other end cell in row 1.
  • the electric current is further conducted to a distribution bar C on the first cell in the row 2 by means of asymmetrically arranged supply bars T. Thereafter the current is conducted from the cathode of an upstream cell to the anode of the next downstream cell, as normal, to the other end cell in the row 2. From this other end cell in row 2 the current is conducted to a distribution bar D. The current is then conducted via three or more supply bars T, being asymmetrically arranged with respect to the midpoint of the distribution bar D, back to the rectifier L, as illustrated in the drawing.

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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)
  • Connection Of Batteries Or Terminals (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
EP89304777A 1988-05-11 1989-05-11 Anordnung zur Kompensation von schädlichen magnetischen Feldern bei quergestellten Elektrolysezellen Expired - Lifetime EP0342033B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO882083 1988-05-11
NO882083A NO164787C (no) 1988-05-11 1988-05-11 Anordning for kompensering av skadelig magnetisk paavirkning fra likeretterfelt og endefelt paa tverrstilte elektrolyseovner i anlegg for smelteelektrolytisk fremstilling av aluminium.

Publications (2)

Publication Number Publication Date
EP0342033A1 true EP0342033A1 (de) 1989-11-15
EP0342033B1 EP0342033B1 (de) 1992-09-30

Family

ID=19890880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89304777A Expired - Lifetime EP0342033B1 (de) 1988-05-11 1989-05-11 Anordnung zur Kompensation von schädlichen magnetischen Feldern bei quergestellten Elektrolysezellen

Country Status (9)

Country Link
EP (1) EP0342033B1 (de)
CN (1) CN1051810C (de)
AU (1) AU609606B2 (de)
BR (1) BR8902189A (de)
DE (1) DE68903033T2 (de)
ES (1) ES2036030T3 (de)
NO (1) NO164787C (de)
NZ (1) NZ228965A (de)
RU (1) RU2060304C1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2187585C1 (ru) * 2001-07-03 2002-08-20 Открытое акционерное общество "Сибирско-Уральская алюминиевая компания" Способ питания током серии электролизеров
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
RU2386730C2 (ru) * 2004-09-23 2010-04-20 Норск Хюдро Аса Способ и системы электрического соединения и магнитной компенсации алюминиевых электролизных ванн
WO2017064547A1 (fr) 2015-10-15 2017-04-20 Rio Tinto Alcan International Limited Serie de cellules d'electrolyse pour la production d'aluminium comportant des moyens pour equilibrer les champs magnetiques en extremite de file
CN110029357A (zh) * 2018-12-20 2019-07-19 沈阳北冶冶金科技有限公司 一种铝电解槽系列的电解厂房及电解槽布局结构

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2168564C2 (ru) * 1999-06-03 2001-06-10 ОАО "Объединенная компания "Сибирский алюминий" Устройство компенсации
CA2457363C (en) * 2001-08-09 2009-07-28 Alcoa Inc. Component cathode collector bar
CN100439566C (zh) * 2004-08-06 2008-12-03 贵阳铝镁设计研究院 大面不等电式五点进电母线配置装置
RU2288976C1 (ru) * 2005-05-04 2006-12-10 Общество с ограниченной ответственностью "Инженерно-технологический центр" Ошиновка модульная мощных электролизеров для производства алюминия
RU2295589C1 (ru) * 2005-09-20 2007-03-20 Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") Ошиновка алюминиевых электролизеров
CN101748443B (zh) * 2008-12-09 2012-05-23 贵阳铝镁设计研究院有限公司 端头两点进电模式的铝电解槽阴极母线的配置方法及结构
FR2977898A1 (fr) * 2011-07-12 2013-01-18 Rio Tinto Alcan Int Ltd Aluminerie comprenant des cuves a sortie cathodique par le fond du caisson et des moyens de stabilisation des cuves
CN103114307B (zh) * 2011-11-16 2015-11-04 沈阳铝镁设计研究院有限公司 铝电解槽外补偿供电整流机组铝母线布置方法及系统
CN105579114B (zh) * 2013-09-25 2018-01-02 林德股份公司 纯化石油洗涤塔中的裂化气流的方法
GB2557972A (en) * 2016-12-21 2018-07-04 Dubai Aluminium Pjsc Electrical design for a Hall-Héroult electrolysis plant comprising a plurality of electrolytic cells connected in series, and method to start-up said plant
RU2678624C1 (ru) * 2017-12-29 2019-01-30 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Ошиновка модульная для серий алюминиевых электролизеров

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2139527A1 (de) * 1971-01-27 1972-08-31 Vni I Projek Schienensystem von Elektrolyseanlagen zur Erzeugung von Aluminium
US3756938A (en) * 1970-06-25 1973-09-04 Ardal Og Sunndal Verk Tion on a row of pots from another instance aluminum by electrolytic reducconductor arrangement for compensating detrimental magnetic influence
EP0185822A1 (de) * 1984-12-28 1986-07-02 Alcan International Limited Schienenanordnung für Elektrolysezellen zur Herstellung von Aluminium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756938A (en) * 1970-06-25 1973-09-04 Ardal Og Sunndal Verk Tion on a row of pots from another instance aluminum by electrolytic reducconductor arrangement for compensating detrimental magnetic influence
DE2139527A1 (de) * 1971-01-27 1972-08-31 Vni I Projek Schienensystem von Elektrolyseanlagen zur Erzeugung von Aluminium
EP0185822A1 (de) * 1984-12-28 1986-07-02 Alcan International Limited Schienenanordnung für Elektrolysezellen zur Herstellung von Aluminium

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2187585C1 (ru) * 2001-07-03 2002-08-20 Открытое акционерное общество "Сибирско-Уральская алюминиевая компания" Способ питания током серии электролизеров
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
WO2005098094A3 (fr) * 2004-04-02 2006-06-29 Pechiney Aluminium Serie de cellules d'electrolyse pour la production d'aluminium comportant des moyens pour equilibrer les champs magnetiques en extremite de file
US7513979B2 (en) 2004-04-02 2009-04-07 Aluminium Pechiney Series of electrolysis cells for the production of aluminium comprising means for equilibration of the magnetic fields at the ends of the lines
RU2361018C2 (ru) * 2004-04-02 2009-07-10 Алюминиюм Пешинэ Серия электролизеров для производства алюминия, содержащая средства для уравновешивания магнитных полей на конце линии
AU2005232011B2 (en) * 2004-04-02 2009-08-13 Aluminium Pechiney Series of electrolysis cells for the production of aluminium comprising means for equilibration of the magnetic fields at the ends of the lines
CN100570010C (zh) * 2004-04-02 2009-12-16 皮奇尼铝公司 包括用于均衡在生产线两端处的磁场的装置的用于生产铝的电解池组
RU2386730C2 (ru) * 2004-09-23 2010-04-20 Норск Хюдро Аса Способ и системы электрического соединения и магнитной компенсации алюминиевых электролизных ванн
WO2017064547A1 (fr) 2015-10-15 2017-04-20 Rio Tinto Alcan International Limited Serie de cellules d'electrolyse pour la production d'aluminium comportant des moyens pour equilibrer les champs magnetiques en extremite de file
RU2722026C2 (ru) * 2015-10-15 2020-05-26 Рио Тинто Алкан Интернэшнл Лимитед Серия электролизеров для получения алюминия, содержащая средства для уравновешивания магнитных полей на конце ряда
CN110029357A (zh) * 2018-12-20 2019-07-19 沈阳北冶冶金科技有限公司 一种铝电解槽系列的电解厂房及电解槽布局结构
CN110029357B (zh) * 2018-12-20 2024-02-23 沈阳北冶冶金科技有限公司 一种铝电解槽系列的电解厂房及电解槽布局结构

Also Published As

Publication number Publication date
NZ228965A (en) 1991-02-26
NO882083L (no) 1989-11-13
CN1051810C (zh) 2000-04-26
RU2060304C1 (ru) 1996-05-20
BR8902189A (pt) 1990-01-02
NO882083D0 (no) 1988-05-11
EP0342033B1 (de) 1992-09-30
DE68903033D1 (de) 1992-11-05
AU3460789A (en) 1989-11-16
NO164787B (no) 1990-08-06
NO164787C (no) 1990-11-14
AU609606B2 (en) 1991-05-02
DE68903033T2 (de) 1993-04-15
ES2036030T3 (es) 1993-05-01
CN1037747A (zh) 1989-12-06

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