FR2527646A2 - Jig for accurate adjustment of anode plane - in cell used for mfg. aluminium by electrolysis of molten cryolite contg. alumina - Google Patents

Jig for accurate adjustment of anode plane - in cell used for mfg. aluminium by electrolysis of molten cryolite contg. alumina Download PDF

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Publication number
FR2527646A2
FR2527646A2 FR8209699A FR8209699A FR2527646A2 FR 2527646 A2 FR2527646 A2 FR 2527646A2 FR 8209699 A FR8209699 A FR 8209699A FR 8209699 A FR8209699 A FR 8209699A FR 2527646 A2 FR2527646 A2 FR 2527646A2
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FR
France
Prior art keywords
frame
anodes
anode
horizontal
electrolysis
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
Application number
FR8209699A
Other languages
French (fr)
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FR2527646B2 (en
Inventor
Daniel Duclaux
Roger Boinet
Jean-Louis Gerphagnon
Jean Baghe
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR8209699A priority Critical patent/FR2527646A2/en
Priority to IN1140/CAL/82A priority patent/IN158317B/en
Priority to US06/442,309 priority patent/US4465578A/en
Priority to NZ202667A priority patent/NZ202667A/en
Priority to GB08234239A priority patent/GB2111082B/en
Priority to ES517872A priority patent/ES8401151A1/en
Priority to YU2678/82A priority patent/YU43105B/en
Priority to GR69967A priority patent/GR70647B/el
Priority to DE19828234243U priority patent/DE8234243U1/en
Priority to NL8204708A priority patent/NL8204708A/en
Priority to DE3245070A priority patent/DE3245070C2/en
Priority to BR8207100A priority patent/BR8207100A/en
Priority to CA000417125A priority patent/CA1178921A/en
Priority to NO824105A priority patent/NO156983C/en
Priority to AU91612/82A priority patent/AU550502B2/en
Priority to OA57861A priority patent/OA07267A/en
Publication of FR2527646A2 publication Critical patent/FR2527646A2/en
Application granted granted Critical
Publication of FR2527646B2 publication Critical patent/FR2527646B2/fr
Granted 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
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/10—External supporting frames or structures

Abstract

Cell is provided with a portal crane using two top horizontal beams on which are pivot mountings for lever plates. The lever plates are attached to a main frame (I), and also to horizontal link rods moved by a jack frame (I) can be raised or lowered. Frame (I) includes two horizontal tubes, which each carry a row of small frames (II). Each frame (II) has a mechanical unit so it can be adjusted vertically and independently w.r.t. frame (I). Each frame (II) has a clamp holding an anode bar from which one or two pre-baked anodes are suspended, so the latter are arranged in parallel rows. Each frame (II) contains an anode shoe receiving electric current via a flexible metal strip so the vertical movement of the frames (I, II) is not impeded. Optimum cell operating is obtd.

Description

PERFECTIONNEMENT AU DISPOSITIF DE REGLAGE PRECIS DU PLAN
ANODIQUE D'UNE CUVE D'EIECTROLYSE POUR LA PRODUCTION D 'ALUMINIUi
La présente invention concerne un perfectionnement du dispositif de réglage précis de la position du plan anodique d'une cuve d'électroly- se destinée à la production d'aluminium par électrolyse d'alumine dissoute dans la cryolithe fondue (procédé Haîl-Hérouit), objet de la demande de brevet principal n 81 23329 déposée le 8 Décembre 1981.IMPROVEMENT TO THE PRECISE ADJUSTMENT DEVICE OF THE PLAN
ANODE OF AN EIECTROLYSIS TANK FOR THE PRODUCTION OF ALUMINUM
The present invention relates to an improvement of the device for precise adjustment of the position of the anode plane of an electrolytic tank intended for the production of aluminum by electrolysis of alumina dissolved in the molten cryolite (Haîl-Hérouit process), subject of main patent application no 81 23329 filed on December 8, 1981.

Un premier objet de l'invention, objet de la demande de brevet princi- pal, est un procédé de réglage précis du plan anodique d'une cuve pour la production d'aluminium, par électrolyse d'alumine dissoute dans la cryolithe fondue, dont le système anodique comporte une pluralité d'anodes précuites, disposées en deux lignes parallèles et munies de tiges de suspension connectées électriquement à un croisillon qui assure l'arrivée positive du courant et dont le plan cathodique est constitué par la nappe d'aluminium liquide produit, procédé selon lequel, sur chaque ligne d'anodes, on connecte les tiges de suspension de chaque anode ou de chaque groupe d'anodes, d'une part à des petits vérins individuels de réglage de hauteur et, d'autre part, au croisillon d'amenée de courant positive par l'intermédiaire de clinquant souple, en ce que l'on fixe les petits vérins individuels de chacune des deux lignes d'anode à un cadre collectif rigide, horizontal, en ce que l'on relie entre eux les deux cadres collectifs rigides et en ce que l'on connecte chaque cadre collectif rigide à un moyen séparé mais accouplable de réglage de hauteur.A first object of the invention, object of the main patent application, is a process for precise adjustment of the anodic plane of a tank for the production of aluminum, by electrolysis of alumina dissolved in the molten cryolite, of which the anode system comprises a plurality of prebaked anodes, arranged in two parallel lines and provided with suspension rods electrically connected to a spider which ensures the positive arrival of current and whose cathode plane consists of the sheet of liquid aluminum produced , method according to which, on each line of anodes, the suspension rods of each anode or of each group of anodes are connected, on the one hand to small individual height adjustment jacks and, on the other hand, to the positive current supply spider by means of flexible foil, in that the small individual cylinders of each of the two anode lines are fixed to a rigid, horizontal collective frame, in that which is connected between them both ca rigid collective dres and in that each rigid collective frame is connected to a separate but flexible means of height adjustment.

Selon ce procédé, on fait varier la distance entre le plan cathodique et l'ensemble des anodes en agissant simultanement en synchronisme, sur les moyens de réglage de hauteur de chaque cadre collectif rigide et en interrompant l'alimentation des moyens de commande des petits vérins individuels pendant que les moyens de réglage des cadres collectifs rigides sont en action.According to this method, the distance between the cathode plane and all of the anodes is varied by acting simultaneously in synchronism on the height adjustment means of each rigid collective frame and by interrupting the supply of the control means of the small jacks. individual while the adjustment means of the rigid collective frames are in action.

Selon ce même procédé, on ajuste l'intensité du courant passant dans chaque anode ou dans chaque groupe d'anodes en mesurant l'intensité de ce courant, en la comparant à une valeur de consigne, en élaborant un ordre de correction qui est envoyé à chacun des petits vérins individuels commandant les anodes ou groupes d'anodes dont l'intensité s écarte de la valeur de consigne, et en interrompant l'alimentation des moyens de réglage en hauteur des deux cadres collectifs rigides pendant que les petits vérins exécutent les ordres de correction.According to this same process, the intensity of the current flowing in each anode or in each group of anodes is adjusted by measuring the intensity of this current, by comparing it with a set value, by developing a correction order which is sent to each of the small individual cylinders controlling the anodes or groups of anodes whose intensity deviates from the set value, and by interrupting the supply of the height adjustment means of the two rigid collective frames while the small cylinders execute the correction orders.

Enfin, lors de l'apparition de l'emballement (ou "effet d'anode" d'une cuve), on interrompt l'alimentation des moyens de commande des petits vérins individuels et on agit séparément, et en synchronisme, sur les moyens de réglage en hauteur de chaque cadre collectif rigide, de façon à relever l'un des cadres d'une hauteur prédéterminée et à abaisser simultanément l'autre cadre d'une hauteur identique, chaque cadre restant horizontal, puis on effectue la manoeuvre inverse, et ainsi de suite, à plusieurs reprises, jusqu'à oe que l'emballement ait cessé, ce qui se manifeste par le retour de la tension aux bornes de la cuve à une valeur voisine de 4 volts.Au cours de cette spera- tion, le niveau de l'électrolyte ne varie pas.Finally, when the runaway appearance (or "anode effect" of a tank) occurs, the supply to the control means of the small individual jacks is interrupted and action is taken separately, and in synchronism, on the means height adjustment of each rigid collective frame, so as to raise one of the frames by a predetermined height and simultaneously lower the other frame by an identical height, each frame remaining horizontal, then the reverse maneuver is carried out, and so on, repeatedly, until the runaway has stopped, which manifests itself by the return of the voltage across the terminals of the tank to a value close to 4 volts. During this spera- tion , the level of the electrolyte does not vary.

Un autre objet de l'invention, objet du brevet principal, est un dispositif de réglage précis du plan anodique d'unie cuve pour la production d'aluminium par électrolyse d'alumine dissoute dans de la cryolithe fondue,' dont le système anodique comporte une pluralité d'anodes précuites, disposes en deux lignes parallèles, munies de tiges de suspension connectées électriquement à un croisillon qui assure l'ar- rivée positive du courant, et dont le plan cathodique est constitué par la nappe d'aluminium liquide produit, dispositif qui comporte - un portique fixe formé par au moins une poutre rigide horizontale
munie d'appui à ses extrémités - un cadre collectif formé par deux éléments rigides horizontaux, cor
respondant chacun à une ligne d'anodes, supportées chacun par le por
tique fine par un ensemble de leviers et de biellettes qui permettent
aux deux éléments rigides de se déplacer par rapport au portique, en
montée ou en descente, tout en restant horizontaux ; - un doyen de commande séparé, mais accouplable, de chaque ensemble de
leviers et de biellettes, dit "vérin collectif" ;; - une pluralité de moyens de commande individuelle des anodes, reliés
d'une part, au cadre collectif et, d'autre part, à une pluralité de
petits cadres individuels - des moyens de liaison mécanique entre les petits cadres individuels
et les tiges de suspension des anodes - éventuellement, des moyens de liaison mécanique, rigides ou articu
lés, entre les deux éléments rigides du cadre collectif - des msyens de liaison électrique entre le croisillon et les tiges
de suspension des anodes.Another subject of the invention, the subject of the main patent, is a device for precise adjustment of the anodic plane of a plain tank for the production of aluminum by electrolysis of alumina dissolved in molten cryolite, the anodic system of which comprises a plurality of prebaked anodes, arranged in two parallel lines, provided with suspension rods electrically connected to a spider which ensures the positive arrival of the current, and whose cathode plane consists of the sheet of liquid aluminum produced, device which comprises - a fixed gantry formed by at least one horizontal rigid beam
provided with support at its ends - a collective frame formed by two rigid horizontal elements, cor
each corresponding to a line of anodes, each supported by the por
fine tick by a set of levers and links which allow
the two rigid elements to move relative to the gantry, in
uphill or downhill, while remaining horizontal; - a separate, but flexible, control dean from each set of
levers and rods, said "collective cylinder"; - a plurality of individual anode control means, connected
on the one hand, to the collective framework and, on the other hand, to a plurality of
small individual frames - means of mechanical connection between small individual frames
and the rods for hanging the anodes - optionally, mechanical, rigid or articulated means
strips, between the two rigid elements of the collective frame - msyens of electrical connection between the spider and the rods
anode suspension.

Au fur et à mesure de l'usure des anodes, les cadres collectifs descendent progressivement. I1 faut donc, périodiquement, les replacer en position haute. Cette opération, appelée relevage des cadres, se fait habituellement en maintenant les anodes à leur niveau au moyen d'une poutre de relevage que le pont d'électrolyse amene sur la cuve, poutre munie de cloches de préhension des tiges d'anodes et prenant appui sur la superstructure de la cuve.Une poutre de ce type a été décrite notamment dans le brevet français FR. 1 445 602 (= US. 3 434 955) au nan d'AL4iNiU1 PBCHINEY. Une fois les anodes fixées à cette poutre, les connexions principales des tiges d'anodes sur l'ensemble mobile sont ouvertes et l'on commande le retour au sarranet de leur course des cadres collectifs (5) et (5') au moyen des vérins collectifs (7) et (7').As the anodes wear out, the collective frames gradually descend. It is therefore necessary, periodically, to replace them in the high position. This operation, called raising the frames, is usually done by keeping the anodes at their level by means of a lifting beam that the electrolysis bridge brings to the tank, a beam provided with bells for gripping the anode rods and taking support on the superstructure of the tank. A beam of this type has been described in particular in French patent FR. 1,445,602 (= US 3,434,955) per nan of AL4iNiU1 PBCHINEY. Once the anodes are fixed to this beam, the main connections of the anode rods on the mobile assembly are open and the collective frames (5) and (5 ') are ordered to return to their sarranet by means of the collective cylinders (7) and (7 ').

Cette méthode présente les deux principaux inconvénients suivants 1. - Pendant l'opération de relevage, le passage du courant du croisillon vers les tiges d'anodes se fait par le même contact qu'en service normal. Ce ccntact est alors glissant. I1 est, de plus, de mauvaise qualité car la pression de la tige sur le croisillon, malgré une conception adaptée de la poutre de relevage, est faible en regard de la pression exercée par un connecteur. Ce mauvais contact glissant, outrelaperte d'énergie qu'il occasionne, est aussi l'origine d'une détérioration accélérée des surfaces de contact. D'autre part, il existe un risque de détérioration encore plus grand en cas d'emballage pendant l'opération de relevage, car la tension aux bornes de la cuve augmente beaucoup. This method has the following two main drawbacks 1. - During the lifting operation, the passage of current from the spider to the anode rods is done by the same contact as in normal service. This ccntact is then slippery. I1 is, moreover, of poor quality because the pressure of the rod on the spider, despite an adapted design of the lifting beam, is low compared to the pressure exerted by a connector. This poor sliding contact, over-recuperating energy that it causes, is also the source of an accelerated deterioration of the contact surfaces. On the other hand, there is an even greater risk of deterioration in the event of packaging during the lifting operation, since the voltage across the terminals of the tank increases a lot.

2. - La poutre de relevage est une pièce lourde et encombrante qui nécessite une prise d'énergie pour actionner ses mécanismes. Elle est donc manipulez avec le pont d'électrolyse. L'opération de relevage étant relativement longue, le taux d'occupation du pont s'en trouve accru et cela diminue donc le ncmbre de cuves pouvant etre exploitées avec un même pont et augmente le nombre de ponts pour une série. De plis, la mise en place sur la cave de la poutre de relevage et du pont interdit le passage d'aueres ponts au-dessus de cette cuve, ce qui constitue une contrainte supplémentaire d'exploitation. 2. - The lifting beam is a heavy and bulky part which requires an energy intake to activate its mechanisms. It is therefore handled with the electrolysis bridge. The lifting operation being relatively long, the occupancy rate of the bridge is increased and this therefore decreases the number of tanks that can be operated with the same bridge and increases the number of bridges for a series. In folds, the installation of the lifting beam and the bridge over the cellar prohibits the passage of other bridges over this tank, which constitutes an additional operating constraint.

L'objet de l'invention est un dispositif particulier de relevage des cadres, qui assure, de plus, un contact électrique franc pendant l'opération.The object of the invention is a particular device for lifting the frames, which also ensures frank electrical contact during the operation.

Les figures 1 et 2 illustrent le dispositif objet de l'invention.Figures 1 and 2 illustrate the device object of the invention.

Elles reproduisent respectivement les figures 2 et 3 du brevet principal et comportent les mêmes repères numériques, plus les organes nouveaux.They respectively reproduce Figures 2 and 3 of the main patent and include the same reference numerals, plus the new members.

La figure 3 est une coupe horizontale du connecteur de relevage.Figure 3 is a horizontal section of the lift connector.

Le dispositif, objet de l'invention, comporte pour chaque anode ou chaque groupe d'anodes, un plot en aluminium (30),appelé faux-cadre ou cadre auxiliaire, alimenté électriquement à partir des croisillons principaux (12) et (12'), par des clinquants souples (31). Ce cadre auxiliaire (30) repose sur un appui lié rigidement aux poutres (1) et !1'), oe qui lui interdit tout mouvement vers le bas. I1 comporte, de plus, un petit connecteur simplifié (32) dont la force est juste nécessaire au soutien du poids d'une anode immobile ; sont coût est donc réduit. II comporte ltorgane de connexion proprement dit (32) qui est articulé en quatre points (33, 34, 35, 36) formant un quadri latere.Le mouvement de serrage-desserrage est assuré par rotation du vérin à vis (37) commandé par un outil approprié.The device, object of the invention, comprises for each anode or each group of anodes, an aluminum stud (30), called subframe or auxiliary frame, electrically powered from the main crossbars (12) and (12 ' ), by flexible foils (31). This auxiliary frame (30) rests on a support rigidly connected to the beams (1) and! 1 '), which prevents it from moving downwards. I1 further comprises a small simplified connector (32) whose force is just necessary to support the weight of a stationary anode; are cost is therefore reduced. It comprises the connection member proper (32) which is articulated at four points (33, 34, 35, 36) forming a quadri latere. The tightening-loosening movement is ensured by rotation of the screw jack (37) controlled by a appropriate tool.

L'opération de relevage des cadres consiste à serrer la tige d'anode (16) sur le cadre auxiliaire (30) au moyen du petit connecteur de relevage (32). L'anode est dcnc liée électriquement à la barre principale d'alimentation (12) et mécaniqueent au cadre auxiliaire, donc à la poudre fixe (1). On peut alors desserrer les connecteurs principaux (17) et relever l'ensemble des cadres collectifs (5), vérins individuels (9) et plots de connexion des tiges d'anodes (10) et (14). Ensuite, sont resserrés les connecteurs principaux (17) et desserrés les connecteurs auxiliaires (32).The frame lifting operation consists in tightening the anode rod (16) on the auxiliary frame (30) by means of the small lifting connector (32). The anode is dcnc electrically linked to the main feed bar (12) and mechanically to the auxiliary frame, therefore to the fixed powder (1). We can then loosen the main connectors (17) and raise all of the collective frames (5), individual cylinders (9) and connection pads of the anode rods (10) and (14). Then the main connectors (17) are tightened and the auxiliary connectors (32) are loosened.

Un dispositif annexe manuel ou mécanisé peut permettre d'éloigner le cadre auxiliaire (30) de la tige d'anode (16) de façon à ne pas avoir de contact électrique à cet t endroit. A manual or mechanized auxiliary device can allow the auxiliary frame (30) to be moved away from the anode rod (16) so as not to have electrical contact at this location.

les deux inconvénients cités plus haut du dispositif classique disparaissent puisque le seul outillage nécessaire pour relever les cadres consiste en des clés manuelles ou mécanisées de serrage et desserrage des connecteurs, ce qui rend l'opération indépendante des autres opérations d'exploitation et du pont d'électrolyse et, d'autre part, un passage franc et direct du courant électrique est toujours assuré quelle que soit la phase considérée de la manoeuvre de relevage. the two disadvantages mentioned above of the conventional device disappear since the only tool necessary to raise the frames consists of manual or mechanized keys for tightening and loosening the connectors, which makes the operation independent of other operations of operation and of the bridge. 'electrolysis and, on the other hand, a frank and direct passage of the electric current is always ensured whatever the phase considered of the lifting operation.

Claims (1)

REVENDICATIONS 1 / - Perfectionnement du dispositif de réglage précis du plan anodique d'une cuve pour la production d'aluminium Par électrolyse d'alumire dissoute dans la cryolithe fondue selon la revendication 5 du brevet principal, ce dispositif comportant : - un portique fixe formé par au moins une poutre rigide horizontale (1) munie d'appuis (2) à ses extrémités, - un cadre collectif formé par deux éléments rigides horizontaux (5- 5') correspondant chacun à une ligne d'anodes, supportés chacun par le portique fixe (1) par un ensemble de bielles et de leviers qui (3') 14) (4') qui permettent aux deux éléments rigides (5) (5') de se déplaoer par rapport au portique, en montée ou en desoente, tout en restant horizontaux, - un moyen de commande (7) (7') séparé, mais accouplable de chaque ensemble de bielles (3) et de leviers !4), - une pluralité de moyens de commande individuelle (9) de montée ou de descente des anodes, reliés, d'une part, au cadre collectif et, d'autre part, à une pluralité de petits cadres individuels (10), - des moyens de liaisonsélectrique et mécanique (17) entre les pe tits cadres individuels (18) et les tiges (6) de suspension des anodes, - des monens de liaison électrique (15) entre les croisillons (12, 12') et les petits cadres individuels (10); ; caractérisé en ce que chaque anode ou groupe d'anodes comporte un ca- dre auxiliaire (30) alimenté électriquement à partir des croisillons principaux (12) (12') par des clinquants souples (31) et reposant sur -un appui lié rigidement aux poutres horizontales (1).CLAIMS 1 / - Improvement of the device for precise adjustment of the anodic plane of a tank for the production of aluminum By electrolysis of alumire dissolved in the molten cryolite according to claim 5 of the main patent, this device comprising: - a fixed gantry formed by at least one horizontal rigid beam (1) provided with supports (2) at its ends, - a collective frame formed by two horizontal rigid elements (5- 5 ') each corresponding to a line of anodes, each supported by the fixed gantry (1) by a set of connecting rods and levers which (3 ') 14) (4') which allow the two rigid elements (5) (5 ') to move relative to the gantry, up or down , while remaining horizontal, - a control means (7) (7 ') separate, but can be coupled to each set of connecting rods (3) and levers! 4), - a plurality of individual control means (9) for raising or descent of the anodes, connected, on the one hand, to the collective framework and, on the other hand, to a pl urality of small individual frames (10), - electrical and mechanical connection means (17) between the small individual frames (18) and the rods (6) for hanging the anodes, - electrical connection means (15) between the braces (12, 12 ') and the small individual frames (10); ; characterized in that each anode or group of anodes comprises an auxiliary frame (30) electrically supplied from the main cross-pieces (12) (12 ') by flexible shims (31) and resting on a support rigidly linked to the horizontal beams (1). 20/ - Perfectionnement du dispositif selon revendication 1, caractérisé en ce que le cadre auxiliaire (30) comporte, en outre, un- connec- teur (32) qui assure un contact électrique direct entre le cadre au- xiliaire (30) et la tige d'anode (16). 20 / - Improvement of the device according to claim 1, characterized in that the auxiliary frame (30) further comprises a connector (32) which provides direct electrical contact between the auxiliary frame (30) and the anode rod (16).
FR8209699A 1981-12-08 1982-05-27 Jig for accurate adjustment of anode plane - in cell used for mfg. aluminium by electrolysis of molten cryolite contg. alumina Granted FR2527646A2 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
FR8209699A FR2527646A2 (en) 1982-05-27 1982-05-27 Jig for accurate adjustment of anode plane - in cell used for mfg. aluminium by electrolysis of molten cryolite contg. alumina
IN1140/CAL/82A IN158317B (en) 1981-12-08 1982-10-01
US06/442,309 US4465578A (en) 1981-12-08 1982-11-17 Apparatus for the precise adjustment of the anode plane of an electrolysis cell used in the production of aluminum
NZ202667A NZ202667A (en) 1981-12-08 1982-12-01 Electrolytic cell:anode suspension and height adjustment
GB08234239A GB2111082B (en) 1981-12-08 1982-12-01 Adjustment of the anode plane of an aluminium production electrolysis cell
YU2678/82A YU43105B (en) 1981-12-08 1982-12-02 Device for a precise control of the anode level in electrolytic bath for aluminium production
GR69967A GR70647B (en) 1981-12-08 1982-12-02
ES517872A ES8401151A1 (en) 1981-12-08 1982-12-02 Apparatus for the precise adjustment of the anode plane of an electrolysis cell used in the production of aluminum
DE19828234243U DE8234243U1 (en) 1981-12-08 1982-12-06 DEVICE FOR ACCURATELY ADJUSTING THE ANODE LEVEL OF A CELL FOR PRODUCING ALUMINUM BY MELTFLOW ELECTROLYSIS
NL8204708A NL8204708A (en) 1981-12-08 1982-12-06 METHOD FOR ADJUSTING THE ANODE SURFACE OF AN ELECTROLYSIS VESSEL USED IN THE PRODUCTION OF ALUMINUM.
DE3245070A DE3245070C2 (en) 1981-12-08 1982-12-06 Device for the precise adjustment of the anode plane of a cell for the production of aluminum by fused-salt electrolysis
BR8207100A BR8207100A (en) 1981-12-08 1982-12-07 PROCEDURE AND DEVICE FOR ACCURATE ADJUSTMENT OF THE ANODIC PLAN OF A CHEMICAL ELECTROLYSIS VESSEL FOR THE PRODUCTION OF ALUMINUM
CA000417125A CA1178921A (en) 1981-12-08 1982-12-07 Control process and device for the anode level in aluminium producing electrolytic vats
NO824105A NO156983C (en) 1981-12-08 1982-12-07 DEVICE FOR ACCURATE SETTING OF THE ANODE PLAN IN AN ELECTROLYCLE CELL FOR ALUMINUM PRODUCTION.
AU91612/82A AU550502B2 (en) 1981-12-08 1982-12-07 Precise adjustment of anode plant in aluminium electrolysis cell
OA57861A OA07267A (en) 1981-12-08 1982-12-08 Method and device for adjusting the anode plane of an electrolytic cell for the production of aluminum.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8209699A FR2527646A2 (en) 1982-05-27 1982-05-27 Jig for accurate adjustment of anode plane - in cell used for mfg. aluminium by electrolysis of molten cryolite contg. alumina

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Publication Number Publication Date
FR2527646A2 true FR2527646A2 (en) 1983-12-02
FR2527646B2 FR2527646B2 (en) 1984-11-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2989693A1 (en) * 2012-04-24 2013-10-25 Rio Tinto Alcan Int Ltd PREHEATING CONNECTOR

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Publication number Priority date Publication date Assignee Title
LU44644A1 (en) * 1962-10-19 1964-04-17
FR1440005A (en) * 1965-04-09 1966-05-27 Pechiney Prod Chimiques Sa Process for producing a superstructure for an igneous electrolysis cell and superstructures produced according to this process
FR2474536A1 (en) * 1980-01-28 1981-07-31 Aluminum Co Of America ELECTROLYSIS CELL HAVING A PARTICULAR ANODE MOUNT, AND ELECTROLYSIS METHOD USING THE SAME FOR THE PRODUCTION OF ALUMINUM

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU44644A1 (en) * 1962-10-19 1964-04-17
FR1440005A (en) * 1965-04-09 1966-05-27 Pechiney Prod Chimiques Sa Process for producing a superstructure for an igneous electrolysis cell and superstructures produced according to this process
FR2474536A1 (en) * 1980-01-28 1981-07-31 Aluminum Co Of America ELECTROLYSIS CELL HAVING A PARTICULAR ANODE MOUNT, AND ELECTROLYSIS METHOD USING THE SAME FOR THE PRODUCTION OF ALUMINUM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2989693A1 (en) * 2012-04-24 2013-10-25 Rio Tinto Alcan Int Ltd PREHEATING CONNECTOR
EP2841626A4 (en) * 2012-04-24 2016-01-27 Rio Tinto Alcan Int Ltd Preheating connector

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