Produits et services

Electric or hybrid vehicles; motorcycles. Retail or wholesale service for vehicles, electric or hybrid vehicles, motorcycles. Rental of vehicle maintenance equipment; vehicle maintenance, servicing and repair; installation of spare parts for vehicles; mounting and repair of vehicle tires; advisory services related to vehicle maintenance, servicing and repair; vehicle cleaning and painting. Vehicle transport and storage service; vehicle rental; reservation service for vehicle transport and rental; providing rental vehicles.

Abrégé

The invention relates to a service module (19) for a plant for producing aluminum, including a frame (25) and a rotary portion (33) including a hopper (37) mounted on said frame so as to pivot about a substantially vertical axis, said rotary portion being provided with at least one tool (21, 22) mounted on a telescopic arm, said service module including a first support structure (35) which is intended for supporting the entirety of said rotary portion and which is mounted on said frame so as to pivot about a substantially vertical axis, a stationary member (39) of said telescopic arm being mounted on a second structure (41) for supporting said rotary portion via coupling means (43) attached to a coupling portion of said stationary element, said coupling portion being spaced apart from the ends (45, 47) of said stationary element. The invention also relates to a service machine (5), to a service unit including the above-described service module, and to the use of said service unit.

Classes IPC  ?

• C25C 3/10 - Cadres ou structures de support extérieurs à la cellule
• C25C 3/12 - Anodes
• C25C 3/14 - Dispositifs pour l'alimentation ou pour briser la croûte
• B66C 17/00 - Ponts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés

Abrégé

Handling tool (300) for handling a connector (200) in order to connect an anode rod onto the anode frame (5) of a cell (1) for producing aluminium by melt electrolysis, said connector being provided with two lateral journals (212, 212') capable of cooperating with bearing hooks (10, 10') fastened to said anode frame and placed on either side of the anode rod (9), so as to press said anode rod against said anode frame, said handling tool comprising at least one guiding member (30) having a groove (40) associated with each of said journals and intended to accommodate said journal, said handling tool being characterized in that it also comprises: at least one gripping member (31) having an open position and a closed position, said guiding member and said gripping member cooperating in such a way that, when said gripping member is in the open position, each journal may be inserted into said groove or extracted therefrom, and when said gripping member is in the closed position, each journal may undergo only a limited displacement in said groove, between what is called the "low" position corresponding to the contact between said gripping member and what is called a "high" position; an actuation system (311) associated with said gripping member, capable of moving said gripping member between said open and closed positions; and at least one locking system (32) having a locked position and an unlocked position, capable of blocking said gripping member when it is in the locked position and capable of switching from the locked position to the unlocked position when said journals are in the high position.

Classes IPC  ?

• C25C 3/16 - Dispositifs d'alimentation en courant électrique, p. ex. barres omnibus

Abrégé

The invention relates to an extracting device (30) for extracting a short-circuiting shim inserted between two conductors (24 and 25) for switching off an electrolytic cell (2). The extracting device (30) includes a means (31) for grasping said shim and, associated with the upper horizontal surface (240, 250) of each conductor (24, 25), at least one vertically-oriented cylinder (32) including a body (320) and a rod (321), a) said rod (or said body) being rigidly connected to at least one horizontal bearing surface (335) oriented downward and arranged such that, when said extracting device is positioned above said shim in order to extract same, the upper horizontal surface (240, 250) of each conductor (24, 25) is located directly opposite a horizontal bearing surface (335), b) said body (or said rod) being connected to said grasping means (31) of said shim, such that, when said cylinder (32) is actuated in order to extract said shim, said cylinder exerts opposing forces on said conductors and on said shim, which tend to space the latter apart from one another.

Classes IPC  ?

• C25C 3/16 - Dispositifs d'alimentation en courant électrique, p. ex. barres omnibus
• C25C 7/00 - Éléments structurels, ou leur assemblage, des cellulesEntretien ou conduite des cellules

Abrégé

Collection unit (100), of bucket scoop type, used in a cell for producing aluminium, comprising: a) a means of attachment to a mobile support (5'); b) a connection (52, 52') activated by a first actuator (50) that moves relative to said mobile support in a vertical direction; c) a frame (110) firmly attached to said connection; d) at least one articulated bucket (120a, 120b) that pivots about an axis (115a, 115b) mounted on said frame, that has a blade (128a, 128b) and that pivots about said substantially horizontal axis. Said first actuator (50) is connected to a programmable control system capable of determining the altitude of said axis and the difference in altitude between said blade and said axis, defining the vertical displacement to be imposed upon said collection unit, defining and transmitting to said first actuator the appropriate control flow in order to impose said vertical displacement. The control flow may be a control current transmitted by a speed controller to an electric motor or a flow of oil feeding the chamber of a hydraulic cylinder, controlled by a servo valve.

Classes IPC  ?

• C25C 3/06 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus de l'aluminium
• B66C 3/16 - Bennes preneuses ouvertes ou fermées par des moteurs d'entraînement intégrés portés par ces bennes par moteurs hydrauliques

Abrégé

Collecting unit (100), in particular a crust shovel (100') intended for cleaning the anode holes, comprising a moveable vertical mast (9") actuated by a first actuator (50), a frame (110) fixed to said moveable vertical mast and at least one hinged bucket (120a, 120b), characterized in that said first actuator (50) is at least one hydraulic cylinder (51) supplied by a hydraulic circuit designed in such a way that, at least when a second actuator actuates said bucket, the oil pressure in the chamber on the rod side (53) is maintained at a substantially constant value making it possible to support a load corresponding to the weight of said collecting unit, reduced by a load of predetermined value, preferably less than 1000 daN, typically between 200 and 600 daN. Advantageously, the circuit portion (63) supplying said chamber on the rod side is provided with a pressure regulator (70). Such a device enables the debris to be collected by scraping the bottom of a cell without damaging it.

Classes IPC  ?

• C25C 3/06 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus de l'aluminium
• E02F 3/413 - PlongeursAuges avec dispositif preneur
• B66C 3/16 - Bennes preneuses ouvertes ou fermées par des moteurs d'entraînement intégrés portés par ces bennes par moteurs hydrauliques
• B66C 17/06 - Ponts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés spécialement adaptés à des buts particuliers, p. ex. dans des fonderies ou des forgesPonts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés combinés avec des appareils auxiliaires servant des buts particuliers

Abrégé

The invention relates to an attachment device for attaching a collecting container (120), including: a) at least one pivot member (115) pivotably mounted about an axis (500) on a mobile arm and including at least one first transverse arm provided with a first attachment means (117) and at least one second transverse arm (118) with axial bores (119); b) at least two fasteners attached to said collecting container, the first fastener (121) being provided with a second attachment means (122) interacting with the first attachment means and the second fastener (123) including axial bores (124); c) a pin (130) which is insertable and slidable into said axial bores when the latter are aligned. At least one bore of a group, referred to as a central bore (1240), is conical and is surrounded by two bores of the other group, referred to as peripheral bores (1190, 1191), which are cylindrical. The pin (130) has a conical shoulder complementary to the central bore. The invention can be used for dual bucket scoops used in potrooms for producing aluminium.

Classes IPC  ?

• B66C 3/00 - Éléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage ou de descente ou adaptés pour être utilisés avec ces mécanismes et destinés principalement à transmettre les efforts de levage à des matériaux en vracBennes preneuses

Abrégé

The invention relates to a service machine (3) for a series of electrolysis cells (2) for the production of aluminium by igneous electrolysis, which includes: a) a bridge crane (4) capable of translation above said electrolysis cells; a tool-bearing carriage (6) on which is attached a service module including tools (10); c) a casting winch (13) connected to said bridge crane and for gripping and positioning near the cell (2) a casting assembly including a ladle (40), a casting tube (41) and a pressure reduction device; and an independent device (50, 50') capable of generating pressurised air. The machine is characterised in that the pressurised air generating device includes a first compressor (50) capable of supplying a pressurised air flow at least equal to the minimum air flow required for operations other than casting, and at least a second compressor (50') arranged so that, when operating simultaneously with the first compressor, the assembly supplies a pressurised air flow at least equal to the minimum air flow required for casting.

Classes IPC  ?

• C25C 7/08 - Séparation des métaux déposés à la cathode
• C25C 3/10 - Cadres ou structures de support extérieurs à la cellule
• C25C 3/06 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus de l'aluminium

Abrégé

The invention relates to a system for constantly monitoring the insulation of a body relative to neighbouring bodies that comprises: a) a CPI (100); b) a first portion (103) of a measuring circuit connecting said body (70) to a first terminal (101) of said CPI; c) a second portion (104, 201, 108, 109) of a measuring circuit for connecting the second terminal (102) of said CPI to each of the adjacent bodies (80, 90), said second portion including at least one relay (201) for alternatively connecting said CPI to a portion (104, 201, 108; and 104, 201, 109) of the measuring circuit, connected to said adjacent body (80 and 90). The CPI alternatively injects a current, upon each switching, into the measuring circuit in order to regularly monitor the insulation of the different portions of an intervention unit to be operated in an electrolysis cell, the measuring circuits being preferably adapted so that a single CPI is used. The system may also include a system for regularly monitoring the power circuits.

Classes IPC  ?

• C25C 3/20 - Commande ou régulation automatique des cellules
• C25C 7/06 - Conduite ou entretien

Abrégé

The invention relates to a method for the single-step removal of thimbles attached to the rods of a base of an anode stem, that comprises the following steps: a) placing said anode stem between an abutment device and an etching device, the abutment device at least partially surrounding each of the rods of said anode stem and having an abutment surface blocking the advance of the corresponding thimble; moving the etching device in the direction of the abutment device until said anode base is in contact with said abutment device; c) carrying on the movement of the etching device so that each thimble blocked by the associated abutment surface is detached from the corresponding rod; d) interrupting and removing the etching device. The method comprises using an abutment device including at least two abutment surfaces located at an axial distance from each other such that the thimbles blocked by a first abutment surface are disconnected from the rods before the other thimbles are blocked by the other abutment surface.

Classes IPC  ?

• C25C 3/12 - Anodes

Abrégé

The invention relates to a service module (13) for a series of electrolysis cells (2) for producing aluminium by igneous electrolysis, each cell including a series of anodes (3) with a metal rod (4) for the attachment and the electrical connection of the anodes to an anodic frame (30), wherein said service module includes a frame that can be attached to a mobile member and at least one anode handling unit connected to the frame, characterised in that it further comprises an activator (70, 80, 245, 20, 20') connected to said anode handling unit and capable of applying at least a force or a shock on the anode rod (4) with a strength such that, even if the rod is firmly maintained in contact with the anodic frame, the contact surfaces undergo a relative displacement having an amplitude that is sufficient for their surface state to be modified and the electric contact improved. The activator is advantageously a jack or a shock generator connected to the anode clamp.

Classes IPC  ?

• C25C 3/10 - Cadres ou structures de support extérieurs à la cellule
• C25C 3/12 - Anodes
• C25C 3/16 - Dispositifs d'alimentation en courant électrique, p. ex. barres omnibus

Abrégé

Method of measuring, on the fly, the length along an axis (z'z) of an anode (20) for molten salt electrolysis, in which: i) said anode is suspended from a gripping member (13a) which is provided with a displacement sensor that measures the vertical position of the point of attachment (O); ii) said gripping member is moved vertically so that the lower surface (21a) of the anode passes through a plane (P) formed by n beams (f1, ..., fi, ..., fn) and, each time one (fi) of said beams (i = 1 to n) is disturbed by the passing of the lower surface of the anode, the vertical position hi of said point of attachment (O) is measured; and iii) the angle of inclination of the zz' axis of the anode rod is measured and the distance between the point of attachment and the lower surface (21a) of the anode block (21) is deduced from the measured hi values (i = 1 to n) and from the value of the inclination of the anode rod.

Classes IPC  ?

• C25C 3/06 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus de l'aluminium

Abrégé

The invention concerns a method for making anodes used for aluminum production by fused-salt electrolysis, said anodes comprising an anode rod made of conductive metal and at least one carbon-containing block (21), or anode block. Said method includes at least the following steps: a) providing an anode rod; b) providing a new anode block; c) fixing one end of the anode rod on the anode block, so as to provide proper mechanical engagement and proper electrical connection between said rod and said anode block. Said method is characterized in that, before, during or after step c) but before installing said anode in the electrolytic cell, it consists, at least on part of the upper surface of said anode block, in depositing a protective layer (10) of controlled thickness, typically between 5 and 25 cm, consisting of a material resistant to the temperature and to the corrosion by the environment prevailing above the electrolytic solution.

Classes IPC  ?

• C25C 3/12 - Anodes

Produits et services

Machines for treating and processing metal, aluminium; machines and machine tools for the electrometallurgy, iron and steel making and foundry industries; lifting appliances. Processing and transformation of bauxite, alumina, aluminium and silicium oxide, abrading and polishing of these materials, for the packaging, automobile, aerospace, shipbuilding, construction, engineering, boilermaking, electronics, household appliances, decoration, sports and leisure, culinary equipment industries; electrometallurgy; iron and steel making; foundry industry.