EP0787833B1 - Disposition d'amenées de courant pour cellules d'électrolyse - Google Patents

Disposition d'amenées de courant pour cellules d'électrolyse Download PDF

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Publication number
EP0787833B1
EP0787833B1 EP96810051A EP96810051A EP0787833B1 EP 0787833 B1 EP0787833 B1 EP 0787833B1 EP 96810051 A EP96810051 A EP 96810051A EP 96810051 A EP96810051 A EP 96810051A EP 0787833 B1 EP0787833 B1 EP 0787833B1
Authority
EP
European Patent Office
Prior art keywords
cell
bar
longitudinal
bus bars
cathode
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.)
Expired - Lifetime
Application number
EP96810051A
Other languages
German (de)
English (en)
Other versions
EP0787833A1 (fr
Inventor
Jacques Antille
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3A Composites International AG
Original Assignee
Alusuisse Technology and Management Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alusuisse Technology and Management Ltd filed Critical Alusuisse Technology and Management Ltd
Priority to EP96810051A priority Critical patent/EP0787833B1/fr
Priority to DE59607944T priority patent/DE59607944D1/de
Priority to US08/773,762 priority patent/US5830335A/en
Priority to AU76455/96A priority patent/AU693391B2/en
Priority to RU96124395A priority patent/RU2118410C1/ru
Priority to CA002194832A priority patent/CA2194832A1/fr
Priority to ZA97246A priority patent/ZA97246B/xx
Priority to IS4414A priority patent/IS4414A/is
Priority to SK91-97A priority patent/SK282829B6/sk
Priority to NO19970328A priority patent/NO317172B1/no
Publication of EP0787833A1 publication Critical patent/EP0787833A1/fr
Application granted granted Critical
Publication of EP0787833B1 publication Critical patent/EP0787833B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C25C3/16—Electric current supply devices, e.g. bus bars

Definitions

  • the invention relates to a rail arrangement according to the preamble of claim 1.
  • the electrolytic cell In normal operation, the electrolytic cell is usually used operated periodically, even if there is no anode effect, by cracking the crust and adding alumina.
  • the cathode bars are in the carbon bottom of the electrolytic cell embedded, the ends of which are the electrolysis pan on both Reach through the long sides. These iron bars collect the Electrolysis current, which is arranged outside the cell Busbars, risers, anode bars or trusses and the anode rods to the carbon anodes the next cell flows. Through the ohmic resistance from the cathode bars to the anodes of the next cell Energy losses are caused in the order of magnitude of up to 1 kWh / kg of aluminum produced. It is therefore Tried repeatedly the arrangement of the busbars to optimize in terms of ohmic resistance.
  • the vertical components formed must also be used of magnetic induction, which - together with the horizontal current density components - in liquid metal obtained by the reduction process Generate force field.
  • the current flow from cell to cell is as follows:
  • the electrical direct current emerges in the carbon bottom of the cell arranged cathode bars.
  • the ends of the cathode bars are connected to the busbars via busbars connected, which is parallel to the electrolytic cell row run. From these along the long sides of the Conducting busbars, the current is passed over others flexible straps and via risers to the two ends the traverse of the next cell. Varies depending on the type of furnace the current distribution between the closer and the more distant End of the traverse, based on the general Current direction of the cell row, from 100/0% to 50/50%.
  • Means The vertical anode rods on the crossbar are locks attached, which carry the carbon anodes and with feed electrical current.
  • GB-A-2 001 344 is a rail guide at the beginning mentioned type disclosed.
  • the inventor has the Task given a rail arrangement of the aforementioned Provide a way that is as extensive as possible Compensation for the different current flows generated electromagnetic force fields can be achieved can.
  • a rail arrangement with the features of claim 1 leads to the achievement of the object according to the invention.
  • Electrolytic cells are suitable for arrangements with current strengths up to 170 KA.
  • the partial current rails are under each cell in the longitudinal center and vertically arranged to the longitudinal axis and the busbar runs in the longitudinal axis of the cell.
  • the partial conductor rails expediently run underneath each cell between support beams of the cathode tub, where the busbar crosses the support beams.
  • the order from partial busbars and busbars is preferred arranged approximately halfway up the height of the support beams.
  • An electrolytic cell 10 has a steel trough according to FIG. 1 12, which is lined with thermal insulation 14 is and receives a coal floor 16.
  • a coal floor 16 In the coal floor 16 are Embedded cathode bars 18, the ends of which the steel pan 12th reach through on both long sides.
  • the cathode bars 18 are connected to busbars 22 via flexible current strips 20.
  • the steel trough 12 is at a distance h from the floor 26 arranged and rests on steel beams 24th
  • Fig. 2 which the inventive arrangement for a number of electrolytic cells 10 with a nominal current of 140 KA.
  • the general direction of electrical DC is denoted by I.
  • the in Fig. 2 in Numbers in brackets refer to the number of Cathode bars, each to individual busbars are merged.
  • the current distribution within one With the same cell type, the cell depends on the current strength. Because there is no linear relationship between current and current distribution exists, the current distribution, i.e. the exact number of individual busbars merged cathode bar units, for a specific Current density based on magnetohydrodynamic models calculated.
  • the electrolytic cell 10 n is equipped with 20 cathode bar ends on each longitudinal side of the cell, of which 26 cathode bar units feed the upstream end of the anode bar or the traverse 28 of the subsequent cell 10 n + 1 and 14 units the downstream end.
  • 3 cathode bar units each from each long side of the cell 10 n are combined to form a partial busbar A, B and are guided along the longitudinal center m of the subsequent cell 10 n + 1 below the cell to its longitudinal axis x.
  • the two partial busbars A, B unite to form a busbar C, which leads along the longitudinal axis x to the downstream end of the traverse 28.
  • the two partial busbars A, B run between the Steel beams 24.
  • the busbar C crosses the Steel beams 24 in openings 25 provided therefor from the partial busbars A, B and the busbar C existing arrangement, which has the shape of a "T" itself at a height a above the floor 26, which is approximately the half height h corresponds to the steel beam 24.
  • the magnetic influence of the busbars A, B and the busbar C is increased by the proximity of the electrolysis metal and by the ferromagnetic environment present as a result of the steel trough 12 and the steel beam 24.
  • the small distance between the busbars A, B and the busbar C to the electrolysis metal allows the current to be reduced by dividing the busbars into a "T”. Magnetohydrodynamic calculations in the present case lead to the results summarized in the table below.
  • the growth factor is optimized for the magnetically Rail guide in the form of a "T” opposite the Rail guidance without "T” reduced by a factor of 3. Out of it there is a significant improvement in the stability of the Electrolytic cell.

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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)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Fuel Cell (AREA)

Claims (4)

  1. Dispositif à rails servant à véhiculer le courant électrique continu depuis les extrémités d'une barre cathodique d'une cellule d'électrolyse allongée, notamment pour la fabrication d'aluminium, au moyen de rails conducteurs aboutissant aux extrémités de la traverse de la cellule suivante, un rail conducteur s'étendant au-dessus de la cellule, dans la direction longitudinale de cette dernière, caractérisé en ce qu'une partie des extrémités de la barre porte-cathode est réunie, au niveau de chaque côté longitudinal de la cellule (10n), à un élément de rail conducteur (A, B), les éléments de rails conducteurs s'étendant à partir des côtés longitudinaux de la cellule suivante (10n+1) transversalement par rapport à l'axe longitudinal (x) de cette cellule, au-dessous de la cellule, et étant réunis au-dessous de la cellule pour former un rail conducteur omnibus (C), et le rail conducteur omnibus étant guidé au-dessous de la cellule, dans la direction longitudinale de cette dernière, jusqu'à l'extrémité aval de la traverse (28).
  2. Dispositif à rails selon la revendication 1, caractérisé en ce que les éléments de rails conducteurs (A, B) sont disposés au-dessous de chaque cellule (10), au (m) de cette cellule dans la direction longitudinale et perpendiculairement à l'axe longitudinal (x) de cette cellule et que le rail conducteur omnibus (C) s'étend suivant l'axe longitudinal (x) de la cellule.
  3. Dispositif à rails selon la revendication 1 ou 2, caractérisé en ce que les éléments de rails conducteurs (A, B) s'étendent au-dessous de chaque cellule (10) entre des supports (24) de la cuvette cathodique (12) et le rail conducteur omnibus (C) traverse le support (24).
  4. Dispositif à rails selon la revendication 3, caractérisé en ce que les éléments de rails conducteurs (A, B) et le rail conducteur omnibus (C) sont disposés au-dessous de chaque cellule (10) en étant situés à un niveau correspondant approximativement à la moitié (a) de la hauteur (h) des supports (24).
EP96810051A 1996-01-26 1996-01-26 Disposition d'amenées de courant pour cellules d'électrolyse Expired - Lifetime EP0787833B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP96810051A EP0787833B1 (fr) 1996-01-26 1996-01-26 Disposition d'amenées de courant pour cellules d'électrolyse
DE59607944T DE59607944D1 (de) 1996-01-26 1996-01-26 Schienenanordnung für Elektrolysezellen
US08/773,762 US5830335A (en) 1996-01-26 1996-12-24 Busbar arrangement for electrolytic cells
AU76455/96A AU693391B2 (en) 1996-01-26 1996-12-24 Busbar arrangement for electrolytic cells
RU96124395A RU2118410C1 (ru) 1996-01-26 1996-12-25 Система ошиновки электролизера
CA002194832A CA2194832A1 (fr) 1996-01-26 1997-01-10 Montage de barres omnibus pour cellules electrolytiques
ZA97246A ZA97246B (en) 1996-01-26 1997-01-13 Busbar arrangement for electrolytic cells
IS4414A IS4414A (is) 1996-01-26 1997-01-16 Fyrirkomulag teina fyrir rafgreiningarker
SK91-97A SK282829B6 (sk) 1996-01-26 1997-01-21 Prípojnica na vedenie jednosmerného elektrického prúdu
NO19970328A NO317172B1 (no) 1996-01-26 1997-01-24 Skinneanordning for elektrolyseceller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810051A EP0787833B1 (fr) 1996-01-26 1996-01-26 Disposition d'amenées de courant pour cellules d'électrolyse

Publications (2)

Publication Number Publication Date
EP0787833A1 EP0787833A1 (fr) 1997-08-06
EP0787833B1 true EP0787833B1 (fr) 2001-10-17

Family

ID=8225538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810051A Expired - Lifetime EP0787833B1 (fr) 1996-01-26 1996-01-26 Disposition d'amenées de courant pour cellules d'électrolyse

Country Status (10)

Country Link
US (1) US5830335A (fr)
EP (1) EP0787833B1 (fr)
AU (1) AU693391B2 (fr)
CA (1) CA2194832A1 (fr)
DE (1) DE59607944D1 (fr)
IS (1) IS4414A (fr)
NO (1) NO317172B1 (fr)
RU (1) RU2118410C1 (fr)
SK (1) SK282829B6 (fr)
ZA (1) ZA97246B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU9652798A (en) * 1997-10-13 1999-05-03 Suparator B.V. Device for continuously skimming off a floating toplayer
FR2871479B1 (fr) * 2004-06-10 2006-08-11 Solvay Sa Sa Belge Circuit electrique d'un electrolyseur a electrodes bipolaires et installation d'electrolyse a electrodes bipolaires
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
FR2882887B1 (fr) * 2005-03-01 2007-04-27 Solvay Circuit electrique d'un electrolyseur et procede pour reduire les champs electromagnetiques au voisinage de l'electrolyseur
FR2882888B1 (fr) * 2005-03-01 2007-04-27 Solvay Circuit electrique d'un electrolyseur et procede pour reduire les champs electromagnetiques au voisinage de l'electrolyseur
US20080143189A1 (en) * 2006-02-27 2008-06-19 Solvay (Societe Anonyme) Electrical Circuit Of An Electrolyzer And Method For Reducing The Electromagnetic Fields In The Vicinity Of The Electrolyzer
FI121472B (fi) * 2008-06-05 2010-11-30 Outotec Oyj Menetelmä elektrodien järjestämiseksi elektrolyysiprosessissa, elektrolyysijärjestelmä ja menetelmän käyttö ja/tai järjestelmän käyttö
RU2536577C2 (ru) * 2012-02-17 2014-12-27 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Ошиновка мощных алюминиевых электролизеров при их продольном расположении в корпусе
IN2015DN00213A (fr) * 2012-07-17 2015-06-12 Obshchestvo S Ogranichennoy Otvetstvennostyu Obedinennaya Kompaniya Rusal Inzh T Ts
RU2505626C1 (ru) * 2012-10-25 2014-01-27 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Ошиновка электролизера для получения алюминия
RU2566120C1 (ru) * 2014-07-24 2015-10-20 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Ошиновка алюминиевого электролизера
UA124537C2 (uk) 2016-07-26 2021-10-05 Токай КОБЕКС ГмбХ Катодний струмовідвід/з'єднувач для електролізера холла-еру

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO139525C (no) * 1977-07-14 1979-03-28 Ardal Og Sunndal Verk Anordning for kompensering av horisontale magnetfelter i smelte-elektrolyseovner
US4196067A (en) * 1978-02-07 1980-04-01 Swiss Aluminium Ltd. Absorption of magnetic field lines in electrolytic reduction cells
DE3009098C2 (de) * 1979-12-21 1983-02-24 Schweizerische Aluminium AG, 3965 Chippis Verfahren zur Führung des Stromes zwischen Elektrolyseöfen
EP0084142B1 (fr) * 1982-01-18 1987-06-10 ALUMINIA S.p.A. Procédé et dispositif pour l'alimentation en courant électrique de cuves pour la production électrolytique de métaux, spécialement d'aluminium

Also Published As

Publication number Publication date
EP0787833A1 (fr) 1997-08-06
DE59607944D1 (de) 2001-11-22
AU693391B2 (en) 1998-06-25
RU2118410C1 (ru) 1998-08-27
CA2194832A1 (fr) 1997-07-27
NO970328L (no) 1997-07-28
NO317172B1 (no) 2004-09-06
ZA97246B (en) 1997-07-23
NO970328D0 (no) 1997-01-24
US5830335A (en) 1998-11-03
SK9197A3 (en) 1998-04-08
SK282829B6 (sk) 2002-12-03
AU7645596A (en) 1997-07-31
IS4414A (is) 1997-02-20

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