EP0342033B1 - 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
EP0342033B1
EP0342033B1 EP89304777A EP89304777A EP0342033B1 EP 0342033 B1 EP0342033 B1 EP 0342033B1 EP 89304777 A EP89304777 A EP 89304777A EP 89304777 A EP89304777 A EP 89304777A EP 0342033 B1 EP0342033 B1 EP 0342033B1
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EP
European Patent Office
Prior art keywords
cells
row
current
cell
compensation
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Expired - Lifetime
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EP89304777A
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English (en)
French (fr)
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EP0342033A1 (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
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Publication of EP0342033A1 publication Critical patent/EP0342033A1/de
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • 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 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).
  • US 3756938 discloses a potline for the electrolytic production of aluminium, comprising two rows of reduction cells with the cells arranged tranversely in each row, the electric current being conducted to and from the end cells by three asymmetrically arranged supply bars.
  • the influence of the magnetic field may 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 transversely in each row, the electric current being conducted to and from the end cells by three or more asymmetrically arranged supply bars, characterised in that a distribution bar is provided on each end cell and connected to the supply bars 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 Figure 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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Claims (1)

  1. Reihe von Elektrolysezellen zur elektrolytischen Herstellung von Aluminium, die wenigstens zwei Reihen von Reduktionszellen umfasst, wobei die Zellen in jeder Reihe transversal angeordnet sind, in der der elektrische Strom von und zu den Endzellen durch drei oder mehr asymmetrisch angeordneten Versorgungsschienen (T) geleitet wird, dadurch gekennzeichnet, dass auf jeder Endzelle eine Verteilungsschiene (A,B,C,D) vorgesehen ist und an die Versorgungsschienen (T) angeschlossen ist, so dass ein Netzstrom in der Verteilungsschiene gebildet wird, der Kompensation für den Magneteinfluss des Gleichrichtungsfeldes und des Endzellfeldes liefert.
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
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.
NO882083 1988-05-11

Publications (2)

Publication Number Publication Date
EP0342033A1 EP0342033A1 (de) 1989-11-15
EP0342033B1 true 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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (14)

* 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
RU2187585C1 (ru) * 2001-07-03 2002-08-20 Открытое акционерное общество "Сибирско-Уральская алюминиевая компания" Способ питания током серии электролизеров
CN100385044C (zh) * 2001-08-09 2008-04-30 阿尔科公司 组合的阴极集流杆
FR2868436B1 (fr) * 2004-04-02 2006-05-26 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
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
NO322258B1 (no) * 2004-09-23 2006-09-04 Norsk Hydro As En fremgangsmate for elektrisk kobling og magnetisk kompensasjon av reduksjonsceller for aluminium, og et system for dette
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
ES2660038T3 (es) * 2013-09-25 2018-03-20 Linde Aktiengesellschaft Procedimiento para el lavado de una corriente de gas de descomposición en una columna de lavado de aceite
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
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
CN209836326U (zh) * 2018-12-20 2019-12-24 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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO122680B (de) * 1970-06-25 1971-07-26 Ardal Og Sunndal Verk
SU327836A1 (ru) * 1971-01-27 1977-12-05 Всесоюзный Научно-Исследовательский И Проектный Институт Алюминиевой,Магниевой И Электродной Промышленности "Вами" Ошиновка торцовых алюминиевых электролизеров
DE3482272D1 (de) * 1984-12-28 1990-06-21 Alcan Int Ltd Schienenanordnung fuer elektrolysezellen zur herstellung von aluminium.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
AU3460789A (en) 1989-11-16
NO882083D0 (no) 1988-05-11
EP0342033A1 (de) 1989-11-15
NZ228965A (en) 1991-02-26
NO882083L (no) 1989-11-13
NO164787B (no) 1990-08-06
CN1037747A (zh) 1989-12-06
DE68903033D1 (de) 1992-11-05
AU609606B2 (en) 1991-05-02
CN1051810C (zh) 2000-04-26
RU2060304C1 (ru) 1996-05-20
NO164787C (no) 1990-11-14
BR8902189A (pt) 1990-01-02
ES2036030T3 (es) 1993-05-01
DE68903033T2 (de) 1993-04-15

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