EP1101726A1 - Lifting and load handling device for an aluminium production installation - Google Patents

Lifting and load handling device for an aluminium production installation Download PDF

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Publication number
EP1101726A1
EP1101726A1 EP00420224A EP00420224A EP1101726A1 EP 1101726 A1 EP1101726 A1 EP 1101726A1 EP 00420224 A EP00420224 A EP 00420224A EP 00420224 A EP00420224 A EP 00420224A EP 1101726 A1 EP1101726 A1 EP 1101726A1
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European Patent Office
Prior art keywords
lifting
handling
series
installation
unit
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EP00420224A
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German (de)
French (fr)
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EP1101726B1 (en
Inventor
Gérard Piron
Roger Boinet
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ASMI
Reel SAS
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Reel SAS
ASMI
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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
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/10—External supporting frames or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes

Definitions

  • the present invention relates to the general field of operation management an aluminum production installation, and more specifically an installation using the now widely used technique of igneous electrolysis.
  • It relates more particularly to a lifting and handling unit, all particularly intended to be used during metal casting operations or alumina, and handling of the lifting beam of the anode frames as well as various auxiliary handling associated with the operation of electrolytic cells.
  • This reaction uses a molten bath comprising a mixture of cryolite and alumina, the temperature of which is generally greater than 800 ° C. take in account the energies used and in order to minimize the losses inherent in the phases aluminum production facilities implementing this technology, generally operate continuously at the level of tank series aluminum, the number and dimensions of which depend on the one hand on the amperage direct current supplied to the tanks, and secondly, the amount of desired production.
  • the installations are frequently organized in such a way that they have two series of tanks mounted parallel to each other, installed within the same building or in separate buildings, but symmetrically with respect to a central aisle intended in particular to allow the handling of the ladle comprising molten alumina intended to fill the electrolytic cells, and other part intended for handling pockets for receiving molten aluminum obtained by electrolysis.
  • a casting intended to handle the ladle is equipped with a special guidance system for handling said pocket with a capacity of typical lifting between 20 and 40 tonnes depending on the amperage of the tanks.
  • the installations in question also have transport trolleys handling, intended inter alia to actuate a frame lifting beam anodic, lifted at both ends, so generally two of this type of trolley are used, with a typical capacity of between 10 and 20 tonnes.
  • This lifting of the anode frames, said frames being intended to receive and maintain within carbon anodes, is necessary as the anodes wear out during electrolysis and, always with the aim of continuity of the process.
  • the trolleys, respectively for casting and handling are therefore mounted on the same running track, with the position furthest from the central aisle the two handling trolleys, then the casting trolley.
  • the configuration of such a unit cannot be envisaged, given the asymmetry thus operated at this unit only for specific positioning of the series of tanks relative to the aisle at which the ladle flows. So, it is made up depending on this orientation a "right" bridge and a "left” bridge.
  • this unit when we want to arrange two series of tanks symmetrically to each other with respect to the central aisle receiving as already said the ladle, it is therefore necessary to have at least two types of this unit, respectively right and left, set works respectively at the level of the tank of the right series and of the tank of the series of left.
  • One of the objectives of the present invention is to reduce the production costs and of aluminum production facilities. To this end, it aims to allow use either on one or the other of said series of tanks parallels of the ladle handling and lifting bridges anodic.
  • Another object of the present invention is to allow, by design of said bridge, to reduce the congestion generated and therefore to reduce the costs inherent in civil engineering.
  • Another object of the invention is also to lighten the structure of the bridges used. works to thus optimize their lifespan and consequently reduce the costs of manufacturing.
  • the invention therefore relates to a unit for lifting and handling loads within an installation for the production of aluminum by igneous electrolysis, said installation comprising at least one series of electrolytic cells in series and being provided with a raceway intended to allow the displacement of at least one traveling crane at the above said series of tanks, and intended to allow the realization of different functions necessary for the implementation of said installation.
  • This lifting and handling unit constituting one of said overhead traveling cranes, and on which are likely to move in a direction perpendicular to the unit translation, at least two lifting and handling assemblies fitted each on a carriage, is characterized in that said carriages are liable to translate on said unit one above the other to allow their crossing respective.
  • the invention provides a lifting and handling unit allowing, by the possible crossing of the two carriages it comprises, a indifferent use on one or other of the series of symmetrically mounted tanks compared to the central aisle.
  • the tracks of the two carriages are coplanar.
  • the installation includes two series of electrolysis cells symmetrical with respect to the central aisle allowing the handling of the ladle and, the characteristic unit of the invention is capable of moving from a series of tanks at the level of the symmetrical series by means of a transporter bridge.
  • one of the trolleys is intended for handling the ladle and the other is for auxiliary work and also for lifting anode frames.
  • the unit can also receive two trolleys for work auxiliary and lifting of anode frames.
  • the casting handling carriage moves at the level of internal tracks and the auxiliary carriage (s) at level of external tracks.
  • the auxiliary carriage (s) move (s) at above the ladle handling trolley.
  • said carriages move below the ladle ladle handling cart.
  • Figure 1 is a schematic perspective representation of parts of a installation for the production of aluminum showing in particular a series of tanks electrolysis.
  • Figure 2 is a schematic perspective representation of the lifting unit and handling according to the invention.
  • Figure 3 is a schematic perspective representation of the casting carriage shown in figure 2.
  • Figure 4 is a schematic perspective representation of the auxiliary carriage which also allows the handling of the lifting beam of the anode frames, shown in figure 2.
  • Figure 5 is a schematic representation in partial cross section of the unit as shown in Figure 2.
  • Figures 6 and 7 are schematic representations respectively seen from the front and top view of the ladle in cooperation with an electrolysis tank, handled by the casting trolley.
  • FIGS. 8 and 9 are respectively front and top views of the handling of the lifting beam of the anode frame.
  • FIGS 10 and 11 are schematic sectional representations of two embodiments in accordance with the invention.
  • FIG. 1 shows a schematic view of a series of electrolysis cells (1) for the production of aluminum according to the process known as igneous electrolysis.
  • These tanks are installed within an installation comprising in particular two series of tanks which are parallel and symmetrical with respect to a central aisle (6), at which are located on the one hand, an alumina supply device for said tanks, and on the other hand, the establishment of a smoke capture and treatment system, in particular gases resulting from the electrolysis reaction (in particular monoxide and dioxide carbon, oxygen, as well as fluorinated fumes).
  • a smoke capture and treatment system in particular gases resulting from the electrolysis reaction (in particular monoxide and dioxide carbon, oxygen, as well as fluorinated fumes).
  • These tanks are substantially identical to each other and each have an access cover (2) inside the tank, in particular to the molten electrolysis bath itself, capable of freeing access to the carbon anodes (3).
  • the aforementioned smoke collection and treatment system is supplied from pipes (4) emanating from said tanks.
  • this series of tanks is surmounted a raceway (5), on which one or more can move overhead traveling cranes, such as for example the overhead traveling crane (7) constituting the handling and lifting according to the invention, and shown in more detail at Figure 2.
  • This traveling crane (7) moves on the raceway (5) by means of rollers (8), whose motorization has not been shown so as not to unnecessarily overload the figures.
  • raceways (9) and (10) are intended to receive respectively a carriage (11) hereinafter referred to as a casting carriage, and one or two carriages (12) and (13) hereinafter called auxiliary carriages or frame lifting carriages anodic.
  • the trolleys for casting (11) and lifting the frames respectively anodic (12, 13) can cross without embarrassment, of course when the carriage superior does not have a suspended load.
  • the casting carriage (11) This one basically consists of a U-shaped frame (15) resting on the path bearing (9) by means of rollers (14), and in particular by means of two sets of rollers parallel (14).
  • the motorization system of these rollers has not been shown so as not to not unnecessarily overload the figures.
  • This casting carriage (11) comprises a lifting device shown succinctly and including the motorization (16) appears in Figure 3.
  • This trolley is intended to support the ladle (23) ( Figures 6 and 7), allow it to translate so as to allow the filling of the ladle by means of a pipe (24) which is immersed in the tank (1).
  • the liquid metal is sucked in by a vacuum system connected to the bag, installed on the cart, or coming directly from the building.
  • trolleys since advantageously the unit has two, are made up a chassis (17) resting on the running tracks (10), parallel, coplanar and external to the tracks (9), by means of rollers (18) motorized by motors (19).
  • auxiliary carriages (12, 13) are also provided with lifting means. We have shown the drums at which the lifting cables (20) are wound, the corresponding motorization (21) and, within FIG. 5, the lifting hook (22) located at the end of the cables.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Vehicle Body Suspensions (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A unit for the lifting and handling of charges (7) at the heart of an installation for the production of aluminium by igneous electrolysis is claimed, the installation comprising at least one series of electrolysis cells in series and being provided with a rail track destined to allow the displacement of at least one overhead crane over the series of cells for the realisation of the different functions necessary for operating the installation. The lifting and handling unit makes up one of the overhead cranes, on which are at least two lifting and handling assemblies, each mounted on a chariot (11, 12, 13), able to be displaced in a direction perpendicular to the translation of the station (7). This lifting and handling unit (7) is characterised in that the chariots are able to move on the unit one above the other in order to allow them to cross each other.

Description

La présente invention concerne le domaine général de la gestion du fonctionnement d'une installation de production d'aluminium, et plus spécifiquement d'une installation mettant en oeuvre la technique maintenant largement répandue de l'électrolyse ignée.The present invention relates to the general field of operation management an aluminum production installation, and more specifically an installation using the now widely used technique of igneous electrolysis.

Elle concerne plus particulièrement une unité de levage et de manutention, tout particulièrement destinée à être mise en oeuvre lors des opérations de coulée de métal ou d'alumine, et de manutention de la poutre de relevage des cadres anodiques ainsi que des diverses manutentions auxiliaires associées au fonctionnement des cuves d'électrolyse.It relates more particularly to a lifting and handling unit, all particularly intended to be used during metal casting operations or alumina, and handling of the lifting beam of the anode frames as well as various auxiliary handling associated with the operation of electrolytic cells.

De manière connue, la production d'aluminium par électrolyse ignée met en oeuvre l'électrolyse de l'alumine dans un bain de cryolithe fondue selon la réaction :

Figure 00010001
In known manner, the production of aluminum by igneous electrolysis implements the electrolysis of alumina in a bath of molten cryolite according to the reaction:
Figure 00010001

Cette réaction met en oeuvre un bain en fusion comprenant un mélange de cryolithe et d'alumine, dont la température est généralement supérieure à 800°C. Compte tenu des énergies mises en oeuvre et afin de limiter au maximum les pertes inhérentes aux phases de redémarrage, les installations de production d'aluminium mettant en oeuvre cette technologie, fonctionnent en général en continu au niveau de séries de cuves d'aluminium, dont le nombre et les dimensions sont fonction d'une part, de l'ampèrage disponible du courant continu alimentant les cuves, et d'autre part, de la quantité de production souhaitée.This reaction uses a molten bath comprising a mixture of cryolite and alumina, the temperature of which is generally greater than 800 ° C. take in account the energies used and in order to minimize the losses inherent in the phases aluminum production facilities implementing this technology, generally operate continuously at the level of tank series aluminum, the number and dimensions of which depend on the one hand on the amperage direct current supplied to the tanks, and secondly, the amount of desired production.

Par ailleurs, les installations sont fréquemment organisées d'une façon telle qu'elles présentent deux séries de cuves montées parallèlement l'une à l'autre, installées au sein du même bâtiment ou dans des bâtiments distincts, mais symétriquement par rapport à une allée centrale destinée notamment à permettre la manutention de la poche de coulée comportant l'alumine fondue destinée à venir remplir les cuves d'électrolyse, et d'autre part destinée à la manutention de poches de réception de l'aluminium fondu obtenu par électrolyse.Furthermore, the installations are frequently organized in such a way that they have two series of tanks mounted parallel to each other, installed within the same building or in separate buildings, but symmetrically with respect to a central aisle intended in particular to allow the handling of the ladle comprising molten alumina intended to fill the electrolytic cells, and other part intended for handling pockets for receiving molten aluminum obtained by electrolysis.

Aussi, au niveau de chacune des séries de cuves, est mis en oeuvre un chariot de coulée destiné à manutentionner la poche de coulée. Ce chariot de coulée est équipé d'un système de guidage particulier pour manutentionner ladite poche avec une capacité de levage typique compris entre 20 et 40 tonnes fonction de l'ampérage des cuves. Also, at each of the series of tanks, a casting intended to handle the ladle. This casting trolley is equipped with a special guidance system for handling said pocket with a capacity of typical lifting between 20 and 40 tonnes depending on the amperage of the tanks.

Par ailleurs, les installations en question disposent également de chariot de manutention, destinés entre autres à actionner une poutre de relevage des cadres anodiques, levées au niveau de ses deux extrémités, de sorte que généralement, deux de ce type de chariot sont mis en oeuvre, de capacité typique comprise entre 10 et 20 tonnes. Ce relevage des cadres anodiques, lesdits cadres étant destinés à recevoir et maintenir au sein des cuves les anodes en carbone, est nécessaire au fur et à mesure de l'usure des anodes en cours d'électrolyse et, toujours dans l'objectif de la continuité du processus.In addition, the installations in question also have transport trolleys handling, intended inter alia to actuate a frame lifting beam anodic, lifted at both ends, so generally two of this type of trolley are used, with a typical capacity of between 10 and 20 tonnes. This lifting of the anode frames, said frames being intended to receive and maintain within carbon anodes, is necessary as the anodes wear out during electrolysis and, always with the aim of continuity of the process.

A ce jour, ces chariots sont montés sur le même pont roulant, se déplaçant selon une direction perpendiculaire par rapport à la translation d'un pont de capacité plus importante, se déplaçant au dessus des cuves..To date, these trolleys are mounted on the same traveling crane, moving in a direction perpendicular to the translation of a bridge of higher capacity important, moving above the tanks.

Les chariots, respectivement de coulée et de manutention sont donc montés sur la même voie de roulement, avec en position la plus éloignée par rapport à l'allée centrale les deux chariots de manutention, puis le chariot de coulée. En d'autres termes, la configuration d'une telle unité ne peut s'envisager, compte tenu de la dissymétrie ainsi opérée au niveau de cette unité que pour un positionnement spécifique de la série de cuves par rapport à l'allée au niveau de laquelle circule la poche de coulée. Ainsi, il est constitué en fonction de cette orientation un pont « droit » et un pont « gauche ». De fait, lorsque l'on souhaite agencer deux séries de cuves symétriquement l'une de l'autre par rapport à l'allée centrale recevant comme déjà dit la poche de coulée, il est donc nécessaire de disposer d'au moins deux types de cette unité, respectivement droite et gauche, mis en oeuvre respectivement au niveau de la cuve des séries de droite et de la cuve des séries de gauche.The trolleys, respectively for casting and handling are therefore mounted on the same running track, with the position furthest from the central aisle the two handling trolleys, then the casting trolley. In other words, the configuration of such a unit cannot be envisaged, given the asymmetry thus operated at this unit only for specific positioning of the series of tanks relative to the aisle at which the ladle flows. So, it is made up depending on this orientation a "right" bridge and a "left" bridge. In fact, when we want to arrange two series of tanks symmetrically to each other with respect to the central aisle receiving as already said the ladle, it is therefore necessary to have at least two types of this unit, respectively right and left, set works respectively at the level of the tank of the right series and of the tank of the series of left.

De fait, nonobstant l'existence de transbordeur, c'est-à-dire de dispositif susceptible de permettre le déplacement d'un pont roulant d'une série de cuves à la série de cuves parallèle, il ne peut être envisagé de faire fonctionner un pont droit sur une série gauche et vice versa.In fact, notwithstanding the existence of a ferry, that is to say of a device susceptible to allow the displacement of an overhead crane from a series of tanks to the series of tanks parallel, it cannot be envisaged to operate a right bridge on a left series and vice versa.

L'un des objectifs de la présente invention est de diminuer les coûts de réalisation et de fonctionnement des installations de production d'aluminium. A cette fin, elle vise à permettre une utilisation indifféremment sur l'une ou l'autre desdites séries de cuves parallèles des ponts de manutention de la poche de coulée et de relevage des cadres anodiques.One of the objectives of the present invention is to reduce the production costs and of aluminum production facilities. To this end, it aims to allow use either on one or the other of said series of tanks parallels of the ladle handling and lifting bridges anodic.

Un autre objectif de la présente invention est de permettre, de par la conception dudit pont, de diminuer l'encombrement généré et partant, de réduire les frais inhérents au génie civil. Another object of the present invention is to allow, by design of said bridge, to reduce the congestion generated and therefore to reduce the costs inherent in civil engineering.

Un autre objectif de l'invention est également d'alléger la structure des ponts mis en oeuvre pour ainsi optimiser leur durée de vie et corollairement diminuer les coûts de fabrication.Another object of the invention is also to lighten the structure of the bridges used. works to thus optimize their lifespan and consequently reduce the costs of manufacturing.

L'invention concerne donc une unité de levage et de manutention de charges au sein d'une installation de production d'aluminium par électrolyse ignée, ladite installation comprenant au moins une série de cuves d'électrolyse en série et étant pourvue d'un chemin de roulement destiné à permettre le déplacement d'au moins un pont roulant au dessus de ladite série de cuves, et destiné à permettre la réalisation des différentes fonctions nécessaire à la mise en oeuvre de ladite installation.The invention therefore relates to a unit for lifting and handling loads within an installation for the production of aluminum by igneous electrolysis, said installation comprising at least one series of electrolytic cells in series and being provided with a raceway intended to allow the displacement of at least one traveling crane at the above said series of tanks, and intended to allow the realization of different functions necessary for the implementation of said installation.

Cette unité de levage et de manutention, constituant l'un desdits ponts roulants, et sur lequel sont susceptibles de se déplacer selon une direction perpendiculaire à la translation de l'unité, au moins deux ensembles de levage et de manutention montés chacun sur un chariot, se caractérise en ce que lesdits chariots sont susceptibles de se translater sur ladite unité l'un en dessus de l'autre pour ainsi permettre leur croisement respectif.This lifting and handling unit, constituting one of said overhead traveling cranes, and on which are likely to move in a direction perpendicular to the unit translation, at least two lifting and handling assemblies fitted each on a carriage, is characterized in that said carriages are liable to translate on said unit one above the other to allow their crossing respective.

En d'autres termes, l'invention propose une unité de levage et de manutention permettant, de par le croisement possible des deux chariots qu'elle comporte, une utilisation indifférente sur l'une ou l'autre des séries de cuves montées symétriquement par rapport à l'allée centrale.In other words, the invention provides a lifting and handling unit allowing, by the possible crossing of the two carriages it comprises, a indifferent use on one or other of the series of symmetrically mounted tanks compared to the central aisle.

Selon une première caractéristique de l'invention, les voies de roulement des deux chariots sont coplanaires.According to a first characteristic of the invention, the tracks of the two carriages are coplanar.

Plus spécifiquement, l'installation comporte deux séries de cuves d'électrolyse symétriques par rapport à l'allée centrale permettant la manutention de la poche de coulée et, l'unité caractéristique de l'invention est susceptible de se déplacer d'une série de cuves au niveau de la série symétrique au moyen d'un pont transbordeur.More specifically, the installation includes two series of electrolysis cells symmetrical with respect to the central aisle allowing the handling of the ladle and, the characteristic unit of the invention is capable of moving from a series of tanks at the level of the symmetrical series by means of a transporter bridge.

Plus spécifiquement encore, l'un des chariots est destiné à la manutention de la poche de coulée et l'autre est destiné aux travaux auxiliaires et également au relevage des cadres anodiques. L'unité peut également recevoir deux chariots destinés aux travaux auxiliaires et au relevage des cadres anodiques.More specifically still, one of the trolleys is intended for handling the ladle and the other is for auxiliary work and also for lifting anode frames. The unit can also receive two trolleys for work auxiliary and lifting of anode frames.

Selon une autre caractéristique de l'invention, le chariot de manutention de coulée se déplace au niveau de voies de roulement internes et le ou les chariots auxiliaires au niveau de voies de roulement externes. According to another characteristic of the invention, the casting handling carriage moves at the level of internal tracks and the auxiliary carriage (s) at level of external tracks.

Selon une autre configuration, le ou les chariot(s) auxiliaire(s) se déplace(nt) au dessus du chariot de manutention de la poche de coulée.According to another configuration, the auxiliary carriage (s) move (s) at above the ladle handling trolley.

Selon une autre forme de réalisation, lesdits chariots se déplacent au dessous du chariot de manutention de la poche de coulée.According to another embodiment, said carriages move below the ladle ladle handling cart.

La manière dont l'invention peut être réalisée et les avantages qui en découlent ressortiront mieux des exemples de réalisation qui suivent, donnés à titre indicatif mais non limitatif, à l'appui des figures annexées.The manner in which the invention can be implemented and the advantages derived therefrom The following examples of embodiment will emerge more clearly, given as an indication but not limiting, in support of the appended figures.

La figure 1 est une représentation schématique en perspective de parties d'une installation pour la production d'aluminium montrant notamment une série de cuves d'électrolyse.Figure 1 is a schematic perspective representation of parts of a installation for the production of aluminum showing in particular a series of tanks electrolysis.

La figure 2 est une représentation schématique en perspective de l'unité de levage et de manutention conforme à l'invention.Figure 2 is a schematic perspective representation of the lifting unit and handling according to the invention.

La figure 3 est une représentation schématique en perspective du chariot de coulée représenté sur la figure 2.Figure 3 is a schematic perspective representation of the casting carriage shown in figure 2.

La figure 4 est une représentation schématique en perspective du chariot auxiliaire qui permet également la manutention de la poutre de relevage des cadres anodiques, représenté sur la figure 2.Figure 4 is a schematic perspective representation of the auxiliary carriage which also allows the handling of the lifting beam of the anode frames, shown in figure 2.

La figure 5 est une représentation schématique en section transversale partielle de l'unité telle que représentée à la figure 2.Figure 5 is a schematic representation in partial cross section of the unit as shown in Figure 2.

Les figures 6 et 7 sont des représentations schématiques respectivement vue de face et vue de dessus de la poche de coulée en coopération avec une cuve d'électrolyse, manutentionnée par le chariot de coulée.Figures 6 and 7 are schematic representations respectively seen from the front and top view of the ladle in cooperation with an electrolysis tank, handled by the casting trolley.

Les figures 8 et 9 sont des vues respectivement de face et de dessus de la manutention de la poutre de levage du cadre anodique.FIGS. 8 and 9 are respectively front and top views of the handling of the lifting beam of the anode frame.

Les figures 10 et 11 sont des représentations schématiques en section de deux modes de réalisation conformes à l'invention.Figures 10 and 11 are schematic sectional representations of two embodiments in accordance with the invention.

On a représenté au sein de la figure 1 une vue schématique d'une série de cuves d'électrolyse (1) pour la production d'aluminium selon le procédé dit de l'électrolyse ignée. FIG. 1 shows a schematic view of a series of electrolysis cells (1) for the production of aluminum according to the process known as igneous electrolysis.

Ces cuves sont installées au sein d'une installation comportant notamment deux séries de cuves parallèles et symétriques par rapport à une allée centrale (6), au niveau de laquelle sont situés d'une part, un dispositif d'alimentation en alumine desdites cuves, et d'autre part, l'implantation d'un système de captation et de traitement des fumées, notamment des gaz issus de la réaction de l'électrolyse (notamment monoxyde et dioxyde de carbone, oxygène, ainsi qu'émanations fluorées). These tanks are installed within an installation comprising in particular two series of tanks which are parallel and symmetrical with respect to a central aisle (6), at which are located on the one hand, an alumina supply device for said tanks, and on the other hand, the establishment of a smoke capture and treatment system, in particular gases resulting from the electrolysis reaction (in particular monoxide and dioxide carbon, oxygen, as well as fluorinated fumes).

Ces cuves sont sensiblement identiques les unes aux autres et comportent chacune un capot d'accès (2) à l'intérieur de la cuve, notamment au bain d'électrolyse en fusion proprement dit, susceptible ainsi de libérer l'accès aux anodes en carbone (3).These tanks are substantially identical to each other and each have an access cover (2) inside the tank, in particular to the molten electrolysis bath itself, capable of freeing access to the carbon anodes (3).

Le système de captation et de traitement des fumées précité est alimenté à partir de canalisations (4) émanant desdites cuves.The aforementioned smoke collection and treatment system is supplied from pipes (4) emanating from said tanks.

Ainsi que l'on peut l'observer sur la figure 1, cette série de cuves est surmontée d'un chemin de roulements (5), sur lequel est susceptible de se déplacer un ou plusieurs ponts roulants, tels que par exemple le pont roulant (7) constitutif de l'unité de manutention et de levage conforme à l'invention, et représenté plus en détail au niveau de la figure 2.As can be seen in Figure 1, this series of tanks is surmounted a raceway (5), on which one or more can move overhead traveling cranes, such as for example the overhead traveling crane (7) constituting the handling and lifting according to the invention, and shown in more detail at Figure 2.

Ce pont roulant (7) se déplace sur le chemin de roulement (5) au moyen de galets (8), dont la motorisation n'a pas été représentée afin de ne pas surcharger inutilement les figures.This traveling crane (7) moves on the raceway (5) by means of rollers (8), whose motorization has not been shown so as not to unnecessarily overload the figures.

Il comporte deux chemins de roulement parallèles (9) et (10), s'étendant perpendiculairement par rapport aux chemins de roulement (5), c'est-à-dire par rapport à la direction de translation de ladite unité (7).It has two parallel raceways (9) and (10), extending perpendicular to the raceways (5), i.e. to the direction of translation of said unit (7).

Ces deux chemins de roulement (9) et (10) sont destinés à recevoir respectivement un chariot (11) dénommé ci-après chariot de coulée, et un ou deux chariots (12) et (13) dénommés ci-après chariots auxiliaires ou encore chariots de relevage des cadres anodiques.These two raceways (9) and (10) are intended to receive respectively a carriage (11) hereinafter referred to as a casting carriage, and one or two carriages (12) and (13) hereinafter called auxiliary carriages or frame lifting carriages anodic.

Ces deux chariots seront décrits plus en détail ultérieurement.These two carriages will be described in more detail later.

Ainsi qu'on peut le concevoir à l'observation de la figure 2, mais également des figures 6, 10 et 11, les chariots, respectivement de coulée (11) et de relevage des cadres anodiques (12, 13) sont susceptibles de se croiser, dans la mesure où, tels que représentés en liaison avec les figures 2, 6 et 11, lesdits chariots (12) et (13) sont susceptibles de pouvoir passer au dessus du chariot de coulée (11) ou, ainsi que représenté sur la figure 10, sont susceptibles de pouvoir passer en dessous dudit chariot de coulée (11).As can be seen from the observation of Figure 2, but also Figures 6, 10 and 11, the trolleys, respectively for casting (11) and for lifting the frames anodic (12, 13) are likely to cross, insofar as, as shown in connection with Figures 2, 6 and 11, said carriages (12) and (13) are capable of be able to pass over the casting carriage (11) or, as shown in the figure 10, are capable of being able to pass below said casting carriage (11).

Ce faisant, les chariots respectivement de coulée (11) et de relevage des cadres anodiques (12, 13) peuvent se croiser sans gêne, bien entendu dès lors que le chariot supérieur ne comporte pas de charge suspendue. In doing so, the trolleys for casting (11) and lifting the frames respectively anodic (12, 13) can cross without embarrassment, of course when the carriage superior does not have a suspended load.

On conçoit de fait tout l'intérêt de ce dispositif, qui permet de transférer l'unité de levage et de manutention (7) d'une série de cuves à la série de cuves parallèles, symétriques à la première par rapport à l'allée centrale (6), et de rendre celle-ci opérationnelle au niveau de cette série parallèle, en inversant le positionnement des chariots respectifs par simple croisement.We understand in fact all the interest of this device, which allows to transfer the unit of lifting and handling (7) of a series of tanks to the series of parallel tanks, symmetrical to the first with respect to the central aisle (6), and to make the latter operational at the level of this parallel series, by reversing the positioning of the respective carriages by simple crossing.

Comme on l'a vu, une telle configuration permet d'aboutir, outre à une simplification de l'installation de production d'aluminium, également à une réduction de ses coûts de réalisation et de fonctionnement.As we have seen, such a configuration makes it possible, in addition to a simplification of the aluminum production installation, also to a reduction of its production and operating costs.

On a décrit plus en détail en liaison avec la figure 3, le chariot de coulée (11). Celui-ci se compose fondamentalement d'un châssis (15), en forme de U, reposant sur le chemin de roulement (9) au moyen de galets (14), et notamment au moyen de deux jeux de galets parallèles (14). Le système de motorisation de ces galets n'a pas été représenté afin de ne pas surcharger inutilement les figures.There has been described in more detail in connection with FIG. 3, the casting carriage (11). This one basically consists of a U-shaped frame (15) resting on the path bearing (9) by means of rollers (14), and in particular by means of two sets of rollers parallel (14). The motorization system of these rollers has not been shown so as not to not unnecessarily overload the figures.

Ce chariot de coulée (11) comporte un dispositif de levage représenté succinctement et dont notamment la motorisation (16) apparaít sur la figure 3.This casting carriage (11) comprises a lifting device shown succinctly and including the motorization (16) appears in Figure 3.

Ce chariot est destiné à prendre en charge la poche de coulée (23) (figures 6 et 7), à lui permettre d'effectuer une translation de telle sorte à permettre le remplissage de la poche de coulée par le biais d'une canalisation (24)que l'on plonge dans la cuve (1). Le métal liquide est aspiré par un système de mise en dépression connecté à la poche, installé sur le chariot, ou venant directement du bâtiment.This trolley is intended to support the ladle (23) (Figures 6 and 7), allow it to translate so as to allow the filling of the ladle by means of a pipe (24) which is immersed in the tank (1). The liquid metal is sucked in by a vacuum system connected to the bag, installed on the cart, or coming directly from the building.

On a représenté également plus en détail au niveau de la figure 4 le chariot auxiliaire ou chariot de relevage des cadres anodiques (12, 13).Also shown in more detail in Figure 4 the carriage auxiliary or lifting cart for anode frames (12, 13).

Ces chariots, puisqu'avantageusement l'unité en comporte deux, sont constitués d'un châssis (17) reposant sur les voies de roulement (10), parallèles, coplanaires et extérieures aux voies de roulement (9), au moyen de galets (18) motorisés par des moteurs (19).These trolleys, since advantageously the unit has two, are made up a chassis (17) resting on the running tracks (10), parallel, coplanar and external to the tracks (9), by means of rollers (18) motorized by motors (19).

Ces chariots auxiliaires (12, 13) sont munis également de moyens de levage. On a représenté les tambours au niveau desquels s'enroulent les câbles de levage (20), la motorisation correspondante (21) et, au sein de la figure 5, le crochet de levage (22) situé à l'extrémité des câbles. These auxiliary carriages (12, 13) are also provided with lifting means. We have shown the drums at which the lifting cables (20) are wound, the corresponding motorization (21) and, within FIG. 5, the lifting hook (22) located at the end of the cables.

Pour les tâches auxiliaires, un seul de ces chariots est mis en oeuvre.For auxiliary tasks, only one of these trolleys is used.

En revanche, dès lors qu'il s'agit de procéder au relevage des cadres anodiques au niveau de chacune des cuves, les deux chariots sont mis en oeuvre simultanément, respectivement au niveau des deux extrémités de la poutre de relevage (25) du cadre supportant les anodes (26), ainsi que cela apparaít partiellement sur la figure 8.On the other hand, when it comes to raising the anode frames at level of each of the tanks, the two carriages are used simultaneously, respectively at the two ends of the lifting beam (25) of the frame supporting the anodes (26), as shown partially in Figure 8.

Les avantages procurés par l'invention apparaissent très nettement.The advantages provided by the invention appear very clearly.

De par la possibilité de standardiser l'unité de manutention et de levage, les coûts inhérents sont sensiblement réduits, d'autant que le nombre de telles unités, nécessaires au fonctionnement de l'installation de production d'aluminium est diminué. En effet, il devient possible d'accroítre la durée de fonctionnement de cette unité.Due to the possibility of standardizing the handling and lifting unit, the costs inherent are significantly reduced, especially as the number of such units, necessary for operation of the aluminum production facility is reduced. Indeed, it becomes possible to increase the operating time of this unit.

En outre, dans le cadre de la forme de réalisation de l'invention, telle que représentée en liaison avec les figures 2, 6 et 11, l'encombrement généré par les chariots auxiliaires est réduit, permettant ainsi, pour les installations nouvelles, de diminuer les dimensions des bâtiments abritant ces installations, et partant, le coût du génie civil correspondant.Furthermore, in the context of the embodiment of the invention, such as shown in connection with Figures 2, 6 and 11, the space generated by the carriages auxiliary equipment is reduced, thus making it possible, for new installations, to reduce the dimensions of the buildings housing these installations, and therefore the cost of civil engineering corresponding.

Claims (7)

Unité de levage et de manutention de charges (7) au sein d'une installation de production d'aluminium par électrolyse ignée, ladite installation comprenant au moins une série de cuves d'électrolyse (1) en série et étant pourvue d'un chemin de roulement (5) destiné à permettre le déplacement d'au moins un pont roulant au dessus de ladite série de cuves pour la réalisation des différentes fonctions nécessaire à la mise en oeuvre de ladite installation, ladite unité de levage et de manutention, constituant l'un desdits ponts roulants, sur lequel sont susceptibles de se déplacer selon une direction perpendiculaire à la translation de l'unité (7), au moins deux ensembles de levage et de manutention montés chacun sur un chariot (11, 12, 13), caractérisée en ce que lesdits chariots sont susceptibles de se translater sur ladite unité l'un en dessus de l'autre pour ainsi permettre leur croisement respectif.Unit for lifting and handling charges (7) within an installation for the production of aluminum by igneous electrolysis, said installation comprising at least one series of electrolytic cells (1) in series and being provided with a path bearing (5) intended to allow the movement of at least one traveling crane above said series of tanks for the performance of the various functions necessary for the implementation of said installation, said lifting and handling unit constituting the one of said overhead traveling cranes, on which are capable of moving in a direction perpendicular to the translation of the unit (7), at least two lifting and handling assemblies each mounted on a carriage (11, 12, 13), characterized in that said carriages are capable of translating on said unit one above the other to thereby allow their respective crossing. Unité de levage et de manutention selon la revendication 1, caractérisée en ce que les voies de roulement (9, 10) des chariots (11, 12, 13) sont coplanaires.Lifting and handling unit according to claim 1, characterized in that the rolling tracks (9, 10) of the carriages (11, 12, 13) are coplanar. Unité de levage et de manutention selon l'une des revendications 1 et 2, caractérisée en ce qu'elle comporte un chariot de coulée (11), destiné à assurer le remplissage de la poche de coulée (23) au niveau des cuves (1) et la collecte de l'aluminium fondu au niveau desdites cuves, et deux chariots auxiliaires (12, 13), destinés aux travaux auxiliaires et au relevage des cadres anodiques au niveau de chacune desdites cuves.Lifting and handling unit according to one of claims 1 and 2, characterized in that it comprises a casting carriage (11), intended to ensure the filling of the casting ladle (23) at the level of the tanks (1 ) and the collection of molten aluminum at said tanks, and two auxiliary carriages (12, 13), intended for auxiliary work and lifting of the anode frames at each of said tanks. Unité de levage et de manutention selon la revendication 3, caractérisée en ce que le chariot de coulée (11) se déplace au niveau de voies de roulement internes (9) et les chariots auxiliaires (12, 13) au niveau de voies de roulement externes (10), le chariot de coulée étant susceptible de se déplacer en dessous des chariots auxiliaires.Lifting and handling unit according to claim 3, characterized in that the casting carriage (11) moves at the level of internal tracks (9) and the auxiliary carriages (12, 13) at the level of external tracks (10), the casting trolley being able to move below the auxiliary trolleys. Unité de levage et de manutention selon la revendication 3, caractérisée en ce que le chariot de coulée (11) se déplace au niveau de voies de roulement internes (9) et les chariots auxiliaires (12, 13) au niveau de voies de roulement externes (10), les chariots auxiliaires étant susceptibles de se déplacer en dessous du chariot de manutention de la poche de coulée (11). Lifting and handling unit according to claim 3, characterized in that the casting carriage (11) moves at the level of internal tracks (9) and the auxiliary carriages (12, 13) at the level of external tracks (10), the auxiliary carriages being able to move below the ladle handling trolley (11). Installation pour la production d'aluminium par électrolyse ignée comprenant deux séries de cuves à électrolyse (1) symétriques par rapport à une allée centrale (6) destinée à permettre la manutention d'une poche de coulée (23) contenant de l'aluminium liquide produit par lesdites cuves d'électrolyse, chacune des séries de cuves étant surmonté d'un chemin de roulement (5) destiné à permettre le déplacement d'au moins un pont roulant au dessus desdites cuves pour la réalisation des différentes fonctions nécessaire à la mise en oeuvre de l'installation, caractérisée en ce qu'elle comprend une unité de levage et de manutention (7), constituant l'un desdits ponts roulants, sur lequel sont susceptibles de se déplacer selon une direction perpendiculaire à la translation de l'unité (7), au moins deux ensembles de levage et de manutention montés chacun sur un chariot (11, 12, 13), lesdits chariots étant susceptibles de se translater sur ladite unité l'un en dessus de l'autre pour ainsi permettre leur croisement respectif.Installation for the production of aluminum by igneous electrolysis comprising two series of electrolytic cells (1) symmetrical with respect to a central aisle (6) intended to allow the handling of a ladle (23) containing liquid aluminum produced by said electrolytic cells, each of the series of cells being surmounted by a raceway (5) intended to allow the displacement of at least one traveling crane above said cells for carrying out the various functions necessary for setting in operation of the installation, characterized in that it comprises a lifting and handling unit (7), constituting one of said overhead traveling cranes, on which are capable of moving in a direction perpendicular to the translation of the unit (7), at least two lifting and handling assemblies each mounted on a carriage (11, 12, 13), said carriages being capable of being translated onto said unit, one above s on the other to allow their respective crossing. Installation pour la production d'aluminium par électrolyse ignée selon la revendication 6, caractérisée en ce qu'elle comporte en outre au moins un pont transbordeur, destiné à permettre le transfert notamment de l'unité de transfert et de manutention d'une série de cuves à la série parallèle.Installation for the production of aluminum by igneous electrolysis according to claim 6, characterized in that it further comprises at least one transporter bridge, intended to allow the transfer in particular of the transfer and handling unit of a series of tanks to the parallel series.
EP00420224A 1999-11-19 2000-10-31 Lifting and load handling device for an aluminium production installation Expired - Lifetime EP1101726B1 (en)

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FR9914580A FR2801295B1 (en) 1999-11-19 1999-11-19 LOAD LIFTING AND HANDLING UNIT WITHIN AN IGNATED ELECTROLYSIS ALUMINUM PRODUCTION INSTALLATION AND INSTALLATION USING SUCH A UNIT
FR9914580 1999-11-19

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EP3030696A1 (en) * 2013-08-09 2016-06-15 Rio Tinto Alcan International Limited Electrolytic device and anode assembly intended for the production of aluminium, electrolytic cell and apparatus comprising such a device
CN106365039A (en) * 2016-11-24 2017-02-01 河北工业大学 Bridge structure of multi-bridge crane and crane
RU2699600C2 (en) * 2014-03-05 2019-09-06 Фив Эсл. System for performing operations associated with use of electrolytic cells in apparatus for producing aluminium by electrolysis

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DE69942692D1 (en) 1999-11-19 2010-09-30 Reel Process for the operation of an aluminum Schmelzflusselektrolyseanlage and operated with this method aluminum manufacturing plant

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WO2005051833A1 (en) * 2003-11-24 2005-06-09 E.C.L. Device for handling an electrolytic cell which is intended for the production of aluminium
AU2004293215B2 (en) * 2003-11-24 2010-02-25 E.C.L. Device for handling an electrolytic cell which is intended for the production of aluminium
FR2862663A1 (en) * 2003-11-24 2005-05-27 Ecl Device for lifting and handling the tank of an electrolysis cell for the production of aluminum by igneous electrolysis
CN100362137C (en) * 2004-11-03 2008-01-16 贵阳铝镁设计研究院 Loading or unloading apparatus for cathode dipping baskets
US7779540B2 (en) 2005-08-12 2010-08-24 United Technologies Corporation Apparatus and method for quadrail ergonomic assembly
EP3030696A1 (en) * 2013-08-09 2016-06-15 Rio Tinto Alcan International Limited Electrolytic device and anode assembly intended for the production of aluminium, electrolytic cell and apparatus comprising such a device
EP3030696A4 (en) * 2013-08-09 2017-03-29 Rio Tinto Alcan International Limited Electrolytic device and anode assembly intended for the production of aluminium, electrolytic cell and apparatus comprising such a device
FR3016900A1 (en) * 2014-01-27 2015-07-31 Rio Tinto Alcan Int Ltd ELECTROLYSIS DEVICE AND ANODE ASSEMBLY FOR THE PRODUCTION OF ALUMINUM, ELECTROLYSIS CELL AND INSTALLATION COMPRISING SUCH A DEVICE.
RU2699600C2 (en) * 2014-03-05 2019-09-06 Фив Эсл. System for performing operations associated with use of electrolytic cells in apparatus for producing aluminium by electrolysis
CN104498999B (en) * 2014-12-18 2017-03-29 贵州莱利斯机械设计制造有限责任公司 A kind of remaining double anode method for cleaning electrolyte and device
CN104498999A (en) * 2014-12-18 2015-04-08 贵州莱利斯机械设计制造有限责任公司 Method and device for cleaning residual bi-anode electrolyte
CN106365039A (en) * 2016-11-24 2017-02-01 河北工业大学 Bridge structure of multi-bridge crane and crane
CN106365039B (en) * 2016-11-24 2017-12-15 河北工业大学 More overhead crane portal structures and crane

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FR2801295B1 (en) 2001-12-21
DE60018020T2 (en) 2005-12-29
NO20005805D0 (en) 2000-11-17
ATE288873T1 (en) 2005-02-15
FR2801295A1 (en) 2001-05-25
NO321743B1 (en) 2006-06-26
DE60018020D1 (en) 2005-03-17
ES2234546T3 (en) 2005-07-01
NO20005805L (en) 2001-05-21
EP1101726B1 (en) 2005-02-09

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