CN105940146B - Include the electrolytic cell of anode assemblies lifting device - Google Patents

Include the electrolytic cell of anode assemblies lifting device Download PDF

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Publication number
CN105940146B
CN105940146B CN201580006072.XA CN201580006072A CN105940146B CN 105940146 B CN105940146 B CN 105940146B CN 201580006072 A CN201580006072 A CN 201580006072A CN 105940146 B CN105940146 B CN 105940146B
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CN
China
Prior art keywords
anode
electrolytic cell
lifting device
cell according
receiver
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CN201580006072.XA
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CN105940146A (en
Inventor
F·布伦
Y·罗歇
S·瑞纳乌迪尔
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Rio Tinto Alcan International Ltd
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Rio Tinto Alcan International Ltd
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08Cell construction, e.g. bottoms, walls, cathodes
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/10External supporting frames or structures
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12Anodes
    • C25C3/125Anodes based on carbon
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/16Electric current supply devices, e.g. bus bars

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The present invention relates to a kind of electrolytic cells,The electrolytic cell is including with substrate (10) and laterally,Longitudinal side wall (11,12) pot shell (1),The pot shell (1) and multiple anode assemblies (3) include respectively an anode construction (32) and at least one anode (31),The electrolytic cell includes the lifting device (6) of multiple longitudinal side walls extensions along pot shell (1) for moving anode assemblies (3),The lifting device includes the ground jack (61) being made of main body (611) and the drive rod (612) extended along the longitudinal axis (B B'),With the anode receiver (62) of the one end for receiving anode construction (32),Ground jack (61) is connected to anode receiver (62) to drive it along translation shaft (T T') translational movement,It is characterized in that the longitudinal axis (B B') of ground jack (61) and the translation shaft (T T') of anode receiver (62) are parallel and inconsistent.

Description

Include the electrolytic cell of anode assemblies lifting device
Technical field
The present invention relates to pass through the electricity in the electrolytic cell of the bathing pool (hereinafter referred to as " ice crystal bathing pool ") comprising ice crystal The general technology field of solution effect production aluminium.
Relate more specifically to include multiple lifting devices electrolytic cell, the lifting device for promoted be included in electrolytic cell in Anode assemblies, each anode assemblies have at least one previously baked type carbon annode.
Background technology
Mostly aluminium is produced by being dissolved in the electrolysis of the alumina in ice crystal bathing pool.
Currently, executing the production of aluminium in such a electrolytic cell at industrial scale, the electrolytic cell is by opened upper end Steel tank shell forms, and the bottom of the electrolytic cell is covered by refractory material, and a cathode extends on the refractory material, top installation The anode assemblies of multiple ice crystal bathing pools for immersing 930 DEG C to 980 DEG C.
Each anode assemblies include an anode construction, which is made of an anode rod and fixing device, The anode construction is connect at least one anode, specifically a previously baked carbon block.
Apply electric current between anode assemblies and cathode for starting cell reaction.
For the common operation temperature of electrolytic cell between 930 DEG C and 980 DEG C, the aluminium of production is liquid.In the cathode of sealing Above it is because of gravity sedimentation.It draws in general, the aluminium of production or the part aluminium of production are cast packet and is sent to casting smelting furnace.
Carbon annode is gradually used up during cell reaction.Once it is finished one of anode assemblies, it will be new by one Anode assemblies replace.
Electric current as equal as possible distribution is necessary the aluminium yield obtained between anode assemblies.This Be exactly that must accurately control the position of anode surface why, the position of the anode surface by the anode in anode assemblies lower side It limits.
However, must constantly be adjusted towards the position of the anode surface of the cathode layer of liquid aluminium to consider the variation of parameter, Such as:
Then the height of aluminium layer, the highly stable increase drastically decline when metal flows out,
The progressive wear of anode surface.
Positioning anode face usually realized by a ground jack and connecting rod component system, the system move anode superstructure and It is fixed and attached to multiple anode assemblies of the anode superstructure.
This movement, which is located at the ground jack of the anode superstructure above electrolytic cell and connection lever system, to be had above electrolytic cell The shortcomings that generating large volume.The height and cost of the building of arrangement electrolytic cell are depending on the height of electrolytic cell, therefore the program It is unsatisfactory.
In addition, the movement for being connected to the anode superstructure of multiple anode assemblies does not allow the position of anode assemblies critically, singly It solely adjusts, which makes it possible to fight:
The overspeed of electrolytic cell related with anode effect, this is opened below by recording anode voltage and only being promoted As long as the anode assemblies of beginning anode effect and directly correct them, to occurring being detected by these anode effects and realizing,
The unequal current distribution between anode assemblies,
The inhomogenous feature in the part of temperature or bathing pool component,
The shape at metal-bathing pool interface caused by the variation of map of current in bathing pool and metal changes.
From patent document US3575827, it is known that a lifting device for including the ground jack formed by main body and bar, against Ground jack main body is arranged in the longitudinal side wall of the pot shell of electrolytic cell, and the free end of bar is as the support construction for anode assemblies. The shortcomings that this equipment is the longitudinal side wall of pot shell, specifically at liquid level, it is very hot and have radiation so that ground jack behaviour Make and its service life can be degenerated.In addition, the position of the ground jack at the longitudinal side wall of pot shell hinders heat exchange, the heat exchange It must be adjusted to control the size on the slope formed in electrolytic cell, for example, by from patent disclosure text WO99/54526 Known air blowing.In addition, since the height of anode block abrasion is very big in existing electrolytic cell, ground jack stroke must it is big so that In the overall size of ground jack, especially longitudinal size is problematic when being resisted against wall positioning, especially because logical Cross the confined space between the electrolytic cell of the electric conductor of many Faradaic currents.Lifting device is also not involved in supply Faradaic current to sun Pole component is so that when anode assemblies are replaced, in order in addition reconnection must be handled to new anode assemblies power supply conductor.
The purpose of the present invention is to propose to the electrolytic cell that one includes lifting system, the configuration of the lifting system makes it possible at least Partly overcome disadvantages mentioned above.
Invention content
An electrolytic cell for being used to produce aluminium is proposed for this purpose, inventing, which includes having substrate and lateral, longitudinal direction The pot shell of side wall, pot shell is capped, and there are one linings to receive an ice crystal bathing pool and multiple anode assemblies, the multiple Anode assemblies include respectively an anode construction and at least one anode immersed in ice crystal bathing pool, and electrolytic cell further includes multiple For the lifting device extended along the longitudinal side wall of pot shell for moving anode assemblies, lifting device includes the lifting being made of main body Device and along the longitudinal axis B-B' ground jack bar extended and an anode receiver for being designed to receive anode construction one end, rises Treasure is connected to anode receiver to drive it along translation shaft T-T' translational movements between retracted position and expanded position, It is characterized in that the longitudinal axis B-B' of ground jack is parallel with the translation shaft T-T' of anode receiver and detaches.
Lifting device is positioned in cell edge and more specifically along its longitudinal side wall so that anode assemblies Vertical stroke does not have obstacle.This allows for anode assemblies to be replaced at the top of electrolytic cell without anode assemblies experience complexity It does exercises.Lifting device does not extend above anode, preferably not above ice crystal bathing pool and even more preferably not Above pot shell.Term " top " should be understood that above relevant component, and by projecting this in a horizontal plane The surface that component obtains vertically move in the volume to be formed.In this way, lifting device will not hinder the vertical shifting of anode assemblies It is dynamic.
Lifting device be used to be vertically movable anode assemblies in electrolytic cell, so as to adjust sun during cell operation The position of pole-face and the integral part for forming electrolytic cell.
Anode assemblies are previously baked types, can periodically be replaced after the anode abrasion for forming them.Sun Pole structure makes the anode for mechanically supporting previously baked carbon lump and ensures anode assemblies when each anode assemblies are replaced Electrical connection.In the context of the present invention, " parallel and detach axis " is understood to two parallel misaligned axis, i.e., between Every the distance of a non-zero.
The longitudinal axis B-B' of ground jack is parallel with translation shaft T-T' and detaches so that opposite ground jack biased anode receiver It is possibly realized.This makes lifting device have first there are one minimum constructive height (that is, along equipment size of the longitudinal axis of ground jack), It is secondary to be set in available small space preferably and more easily between two adjacent cells, to be located in electrolysis The edge in pond.The height of electrolytic cell is limited by this improved arrangement that opposite ground jack biased anode receiver is realized And/or reduce space between two adjacent cells.
In order to make another receiver be biased with respect to ground jack, lifting device may include a ground jack bar and anode Lateral connection beam between receiver, the tie-beam extend preferably along lateral shaft, and the transverse axis is in ground jack Longitudinal axis B-B' and translation shaft T-T'.
The component being made of ground jack bar, tie-beam and anode receiver can form U- types structure so that ground jack main body Extend towards anode receiver." towards " is understood to that the face of at least one longitudinal axis perpendicular to ground jack passes through ground jack master Body and anode receiver.This height for limit lifting device.
Advantageously, tie-beam and ground jack bar be interdependently mounted and tie-beam with anode receiver interdependently It is mounted.This to transmit movement from bar to anode receiver.
In one embodiment, anode receiver may include a stick extended along translation shaft T-T'.Advantageously, The stick includes a pedestal in one end, and the pedestal is designed to receive one end of anode construction.This stick allows anode knot Structure is mechanically held in above ice crystal bathing pool.The stick also allows the conduction of electric current to provide energy to anode assemblies.For this purpose, A part for stick is electrically connected to flexible electrical conduction device.Specifically anode assemblies are powered by pedestal, more particularly through The contact surface of anode construction and pedestal.One fixed system can be provided that so that anode construction is connected to pedestal.This be in order to Anode construction is prevented to be moved to chassis outer side during the translational movement of anode construction.Fixed system may include for making anode Structure is close to pedestal to ensure the device of the conduction electric current between pedestal and anode construction.
Stick can be rectangle or square-section to improve its mechanical strength.The stick can also include a steel skeleton and put Set in skeleton or around copper part so that electric energy is transmitted to anode assemblies.
It is connect as described above, lifting device may include anode for being moved along translation shaft T-T' direct anode receivers Receive device guide device.In some embodiments, guide device at least partly around anode receiver and is limited for anode Receiver slides path of navigation.For example, guide device may include being spaced apart by non-zero distance along translation shaft T-T' Two rings, a part of each ring around anode receiver.Preferably, each ring can there are one when in retracted position and expansion Seam between position when mobile anode receiver for making tie-beam pass through.This can maximize the distance of interannular to avoid guiding The possible angular gap of device medium rod.Which ensure that the vertical translation movement of anode receiver.
Lifting device is connected to electrolytic cell so that the translation shaft T-T'(of each anode receiver and therefore ground jack are indulged Axis) it is vertical.
Due to present electrolytic cell with large scale so each electrolytic cell is with multiple anode assemblies.Each anode construction Translationally extend in electrolytic cell and is associated with corresponding a pair of of lifting device along the opposite longitudinal side wall setting of pot shell. Electrolytic cell, which preferably includes, is connected to the controller of lifting device to control moving synchronously for each pair of lifting device.Which ensure that right It is moved in the vertical translation of each anode assemblies.
In some embodiments, electrolytic cell may include a constraint room born on pot shell, which includes Lateral and longitudinal side wall simultaneously is designed to limit the confined volume for ice crystal bathing pool overhead gas.Each lifting device It can be advantageously fixed to one of the longitudinal side wall of constraint room.Specifically, each lifting device may be connected to and slot The top edge of the constraint room of shell phase pair is so that the ground jack main body of each lifting device is located higher than ice crystal bathing pool height At height.Which has limited ground jack main bodys to be exposed to mainly in pot shell in face of the heat radiation of ice crystal bathing pool transmitting, the ice crystal For the operation temperature of stone bathing pool at 1000 DEG C or so, exposure main body to this temperature can be harmful to the operation of ground jack.By in ice Ground jack main body is placed above spar, its reliability and durability is enhanced.
Preferably, each lifting device by ground jack free end be fixed to constraint room top edge so that it is described from By holding compared with treasure bar further from pot shell bottom.
Preferably, the side wall for constraining room is biased outwardly with respect to the side wall of pot shell so that the side wall of the constraint room is in pot shell Extend around and above side wall, the side wall of pot shell and the side wall of constraint room pass through annular arm support (replat annulaire) quilt Mechanically connected, the anode receiver of lifting device extends through the opening being arranged on arm support.This makes by that will be open The size of anode receiver is reduced in size to be possibly realized to improve the leakproofness of electrolytic cell.
Translation shaft T-T' is preferably vertical, and anode receiver can be opened in vertical translation by what is be arranged on arm support Mouthful.In some embodiments, anode receiver passes through constraint room by providing the ring type seal of dynamic sealing.This make into One step improves the leakproofness of electrolytic cell.
In order to be used in the useful volume maximization of aluminium is produced in electrolytic cell and limit the damage wind of lifting device Danger, the ground jack of lifting device extend to the outside of electrolytic cell.
Electrolytic cell can also include a gas collector, which has at least one gas entrapment Set, the gas entrapment are cased with the air entry of intake-gas, and each lifting device is fixed to the capture set.Gas collector Each capture set can extend along the top edge of the longitudinal side wall of constraint room, the freedom that each lifting device passes through ground jack End is fixed to the capture set so that substrate of the free end compared with treasure bar further from pot shell.
Therefore a capture set is formed, which, specifically can also quilt other than the basic function of guiding gas It is used as:
- one strapping, the component for being made of pot shell and constraint room, and
- one connection support, is used for the different components of electrolytic cell, such as lifting device.
The many functions of capture set are assigned to limit cell dimensions and it is more easily manufactured to become possible.
Description of the drawings
Other advantages and features of the lifting device of the present invention will be presented from the description below for numerous embodiments, These embodiments are provided with non-limiting embodiment, in the accompanying drawings:
- Fig. 1 and Fig. 2 is the vertical and horizontal sectional view of an electrolytic cell embodiment,
- Fig. 3 and Fig. 4 is the perspective view of electrolytic cell lifting device.
Specific implementation mode
The embodiment of the electrolytic cell including the lifting device for moving anode superstructure will now be described.In these different figures In, identical element reference number having the same.
Word " side wall ", " substrate " and " open top " is used in the text with reference to cuboid.
In the context of the present invention it will be appreciate that:
" substrate " means a horizontal wall of the cuboid positioned at Near Ground,
" open top " means the opening in a horizontal wall of the cuboid opposite with substrate,
" sides/walls " mean a vertical plane/wall of the cuboid extended in a face perpendicular to substrate,
" longitudinal surface/wall " means vertical plane/wall of cuboid, other sides of at least one size ratio of the face/wall/ The size of wall is big.
" lateral face/wall " means to be transversely to the machine direction vertical plane/wall that face/wall extends.
In addition, we will use term " top " and " lower section " relative to vertical axis.
Fig. 1 shows one embodiment of electrolytic cell according to the present invention.Electrolytic cell is rectangle and includes a pot shell 1, room 2, multiple anode assemblies 3, cathode 4, gas collector 5 and lifting device 6 are constrained.
This electrolytic cell is used for the production of aluminium.The electrolytic cell is associated with other multiple optionally identical electrolytic cells, multiple Electrolytic cell is arranged in succession, and two continuous electrolytic cells are adjacent at a longitudinal side wall as shown in Figure 2, two continuous electricity Solution pond C1, C2 are shown in the Fig. 2.
Pot shell 1 is typically the shape of cuboid.There are one substrate 10, lateral sidewalls 11 and longitudinal side walls 12 for pot shell tool. Substrate 10 and four side walls 11,12 are coated with refractory material 13 so that pot shell 1 is isolated.The pot shell 1 can be metal, such as by Steel is constituted.
Pot shell 1 opens wide at the top of it.The pot shell is designed to receive ice crystal bathing pool 14, and anode assemblies 3 are immersed in this In ice crystal bathing pool 14.
Constraint room 2 defines a closed volume above ice crystal bathing pool 14, in 3 quilt of constraint room Anodic component It is mobile.
Constraint room 2 is placed on the top edge of pot shell 1.The constraint room includes two lateral sidewalls 21 and fixed to pot shell 1 Two longitudinal side walls 22.
The side wall 21,22 for constraining room 2 is outwardly biased with respect to the side wall 11,12 of pot shell 1 so as to constrain the side wall 21,22 of room 2 Extend around and above the side wall 11,12 of pot shell 1.In this way, the face that the side wall 21,22 of constraint room 2 extends surrounds slot The side wall 11,12 of shell 1.
The top edge of pot shell 1 and/or the bottom margin for constraining room 2 can form the mechanically connected pot shell of an arm support 1 With the side wall 11,12,21,22 of constraint room 2 so that constraint room 2 and pot shell 1 limit the free volume of 14 top of ice crystal bathing pool.
Constraint room also includes a removable hood device 23 to cover the top limited by four side walls 21,22 for constraining room 2 Portion is open.Lid arrangement 23 can be made of the combination of the plate or cover substantially extended in a face, and can be supported on constraint room 2 Side wall 21,22 top edge 24 on.
Each anode assemblies 3 include at least one anode 31 and anode construction 32.During cell reaction, it is immersed in ice crystal Anode 31 in stone bathing pool 14 is consumed.The needs of anode assemblies 3 are regularly replaced.
Anode 31 is previously baked type, that is, is inserted into previously baked one piece of carbonaceous material before electrolytic cell.
Anode construction 32 can support and manipulate first anode 31, secondly can be to its supply of electrical energy.Each anode construction 32 form an independent support for its relevant anode 31.
As depicted in figs. 1 and 2, anode assemblies 3 extend transversely in electrolytic cell, and electrolytic cell include along electrolytic cell, Along the longitudinal axis of electrolytic cell multiple anode assemblies arranged side by side.
Each anode construction 32 is laterally extended in the electrolytic cell between the vertical side of the edge 22 of constraint room 2.In Fig. 1 and figure In embodiment shown in 2, each anode construction includes a beam, and the beam is lateral between the vertical side of the edge 22 of constraint room 2 Extend.
Anode construction 32 may include frame 332 and segment 331, and the frame 332 is by the metal with good mechanical strength (such as, steel) is formed, which is formed by the metal (such as, copper) with good electric conductivity.Frame 332 allows anode knot Structure 32 maintains anode 31 to suspend in midair, and segment 331 is employed to ensure that the flowing of electric current with to 31 supplying energy of anode.
Cathode 4 is made of (or multiple) carbonaceous material block.Cathode block, which is electrically connected to cathode conductor, makes electrolytic cell by road Electric current is sent to next electrolytic cell by line.Cathode 4 can be any types known to those skilled in the art of the present technique and no longer more It describes in detail.
Gas collector 5 is retracted in the polluted gas generated during cell reaction.
Gas collector 5 includes that one (or multiple) capture set, and the suction for gas is distributed on capture set Air entry.
Capture set is associated with (or multiple) pumping equipment (not shown).It is above the longitudinal side wall 22 of constraint room 2 Extend, and optionally extends above the lateral sidewalls 21 of constraint room 2.It is deposited along the air entry of the longitudinal wall 23 of constraint room 2 In the efficiency for improve gas pollutant collecting device 5.
Advantageously, each capture set can be square or rectangular section, and (all by the material with high mechanical properties Such as, steel) composition.This hardness and strength for increase suction set.Therefore such a capture set is formd, this is caught Set is obtained other than the basic function of guiding gas, is specifically also used as tying up the component being made of pot shell 1 and constraint room 2 Band and many components (such as, lifting device or drilling equipment) as electrolytic cell connection support.It assigns and being permitted to capture set The multi-functional size for limit electrolytic cell and saving structure.
Lifting device 6 allows the anode construction 32 for suspending anode 31 in midair to be operated.Specifically, lifting device 6 is used for vertically Anode assemblies 3 are translationally moved so as to adjust the position of anode surface during cell operation.
The lifting device that each anode construction 32 is each located on two in one end is associated with.In such a way, Mei Geyang The movement of pole structure 32 is included in the movement of the anode construction 32 and anode assemblies in electrolytic cell independently of other.It therefore can be with that This is independently vertically movable anode assemblies 3.
Each lifting device 6 end in contact corresponding to anode construction 32.With 32 associated two lifting devices 6 of anode construction Controller (not shown) is connected to their operation of synchronous control.Which ensure that being moved while the end of anode construction 32 It is dynamic, to keep its basic horizontal when anode construction moves.Controller can also be programmed to control the movement of anode construction 32 Speed and direction.This movement speed for change anode construction 32 according to ongoing action type.For example, In the case where replacing anode assemblies 3 run out of with a new anode assemblies, the movement speed of anode construction 32 can With, such adjustment requirement fine setting bigger than movement speed of the anode construction 32 when adjusting anode surface during electrolysis.
Each lifting device 6 includes a ground jack 61 and an anode receiver 62.
Ground jack 61 is used to translationally vertically move anode receiver 62 along translation shaft T-T'.Ground jack 61 include along The main body 611 and bar 612 that longitudinal axis B-B' extends.Advantageously, ground jack 61 can be pneumatic or electronic to bear in electricity The high temperature of generally existing near Xie Chi.
Anode receiver 62 includes a rectangular section stick 621 extended along the longitudinal axis overlapped with translation shaft T-T'. The top of stick 621 includes being designed to receive the pedestal 622 of the end of anode construction 32, its shape is complementary with the latter.
Specifically, pedestal 622 can be U- type structures, which is made of 6221, two vertical panels 6222 of substrate, should Substrate 6221 extends in the face of translation shaft T-T', which extends perpendicular to substrate 6221, the anode construction 32 end is suitable for bearing in the substrate 6221 between vertical panel 6222.
Lifting device can also include a fixed system.This fixed system be used to anode construction 32 being connected to bottom Seat 622.For example, fixed system include one be intended to it is optionally threaded in the transverse holes for being inserted in vertical panel 6222 Bar, which is arranged in vertical panel 6222 so that bar is in it above anode construction when bar is installed in pedestal 622 It extends transversely with.
Fixed system may include for make anode construction 32 be close to pedestal 622 surface device, be preferably close to bottom The substrate 6221 of seat 622.For example, fixed system may include a bolt and an internal thread, which is designed to screw in Hole, the internal thread are correspondingly set in the substrate 6221 of pedestal 622 and anode construction 32.It is resisted against the spiral shell of anode construction 32 Bolt head ensures that it is tightly attached to the substrate of pedestal 622 6221.
When anode construction 32 is vertically moved to the substrate 10 of pot shell 1, fixed system hinders anode construction 32 from pedestal Exposure in 622.Cause to form solidified shell on the surface of ice crystal bathing pool 14 by electrolytic production of aluminum.Anode 31 is frozen in this In a solidified shell.
During so that anode construction 32 is vertically moved to the substrate 10 of pot shell 1 in order to reduce anode 31, applied by solidified shell The stress being added on anode 31, specifically frictional force can be big with force of gravity, and anode construction is caused to be detached from the risk of pedestal.
The presence of fixed system can limit this risk, especially be vertically moved to the bottom 10 of pot shell 1 in anode 31 Period is intended to keep it in the inside of pedestal 622 by applying pulling force on anode construction 32.
Advantageously, a part 6211 for stick is can be seen that (for example, closer to the end of the bottom of pot shell 12 from Fig. 2 and Fig. 4 Portion or the top of pedestal 622) flexible electrical conduction device 7 is electrically connected to pass through pedestal 622 to provide energy to anode assemblies 3.
Advantageously, anode receiver 62 be configured to translation shaft T-T' detached with the longitudinal axis B-B' of ground jack 61 (that is, Differ) with it is parallel.
This makes opposite 61 biased anode receiver 62 of ground jack so as to limit the height of lifting device 6.This to be promoted Device 6 has first there are one minimum constructive height (that is, along equipment size of the longitudinal axis of ground jack), next can preferably and more hold It changes places and is set in the available small space between two adjacent electrolytic cells, to be located in the edge of electrolytic cell.
This lifting device 6 can then be positioned in the edge of electrolytic cell.
The replacement of it is provided by replace anode assemblies 3 at the top of electrolytic cell lifting device 6 do not interfere anode assemblies 3 The possibility of vertical movement, it means that it is expected that saving prodigious structure.In addition, opposite anode receiver 62 biases lifting Device 61 makes it possible in the outdoor side positioning ground jack 61 of constraint and anode receiver 62 in constraint indoor.By limiting it Being exposed to reduces the risk of the damage of ground jack 61 in gas and heat radiation.Ground jack can be mounted adding for pot shell 1 Gu to reduce the volume of constraint indoor lifting device in the free space between bracket.
It is contemplated that different solutions is so that translation shaft T-T' is differed and parallel with longitudinal axis B-B'.
For example, ground jack 61 can be connected to anode receiver 62 by lateral connection beam 63.This lateral connection beam 63 are preferably perpendicular to bar 612 and the extension of stick 621.Tie-beam 63 is interdependently pacified with the bar 612 of stick 621 and ground jack 61 Dress.One is set and bar 612 is attached to the bolt system of lateral connection beam 63 compensates for ground jack 61 and anode receiver 62 Between any balance defect.
Guide device 64 ensures the vertically moving along translation shaft T-T' of anode receiver 62.Guide device may include Two rings 641,642 separated by the distance of a non-zero along translation shaft T-T' surround to each loop section stick 621 to allow Its:
- one retraction or low position, pedestal 622 is close to the surface of ice crystal bathing pool 14 in the position, and
- one expansion or high position, surface of the pedestal 622 far from ice crystal bathing pool 14 in the position
Between vertical sliding motion.
In the embodiment shown in Fig. 4, each ring 641,642 has breach to allow stick 621 retraction and expansion Transverse beam 62 passes through during being slided between position.
Ground jack 61 is connected to pot shell with " head is upwards (t ê te en haut) ".More specifically, the main body 611 of ground jack 61 It is installed on pot shell 1 so that substrate 10 of its free end 613 than bar 612 further from pot shell 1.The main body 611 of ground jack 61 Free end 613 be preferably fixed to constraint room top edge and advantageously the capture of gas collector 5 set on.By this The longitudinal side wall 22 of kind mode, the 611 relative restraint room 2 of main body of ground jack 61 extends, and the height of ice crystal bathing pool is higher than at one Degree.Which limits the risks for damaging ground jack by being exposed to excessively high temperature by its main body 611.Due to neighbouring ice crystal The temperature of bathing pool 14, the side wall 21,22 of the temperature of the side wall 11,12 of pot shell 1 usually than constraining room 2 is high, the ice crystal bathing pool 14 Operation temperature be about 1000 DEG C.
The operating principle of lifting device is as follows.It is assumed that anode 31 is dipped into ice crystal bathing pool.
In order to vertically move anode assemblies 3, controller controls the synchronous driving of two lifting devices 6, the sun of anode assemblies 3 Pole structure 32 is located on the lifting device.
The applied force on its bar 612 of each ground jack 61 is tended to:
- one open position, the mainly extension on the outside of main body 611 of bar 612 in the position, and
- one compacted location, in the position bar 612 mainly extend in the main body 611 of ground jack 61,
Between it is mobile it.
The movement for opening the bar between compacted location is sent to anode receiver 62 by lateral connection beam 63.
The anode receiver 62 of each ground jack slides in guide device 64 and is moved to expanded position from retracted position.
Therefore, the combination of anode assemblies and respective lifting device to move anode assemblies 3 independently of one another.In addition, Opposite ground jack biased anode receiver allows lifting device to be located in cell edge without hindering anode above electrolytic cell The movement of component, and they can be easily inserted in the edge of electrolytic cell without since tight ness rating increases to by electrolytic cell bottom Portion and between electric conductor loop limited.
Reader will appreciate that be that above-mentioned lifting device can be done without departing from new information disclosed herein Many modifications.
Moreover, the shape (such as, the shape of stick or shell etc.) of many components of lifting device can change.
In addition, in Fig. 1 to embodiment shown in Fig. 4, ground jack 61, anode receiver 62 and anode construction 32 are pair Neat, i.e., they extend in identical plane substantially.Optionally, ground jack 61 can be relative to including 62 He of anode receiver The plane bias of anode construction 32.

Claims (23)

1. the electrolytic cell for producing aluminium, which includes with substrate (10) and lateral, longitudinal side wall (11,12) pot shell (1), capped there are one linings (13) to receive an ice crystal bathing pool (14) and multiple anode assemblies for the pot shell (1) (3), the multiple anode assemblies include respectively an anode construction (32) and at least one anode immersed in ice crystal bathing pool (31), which further includes the lifting device (6) of multiple longitudinal side walls extensions along pot shell (1) for moving anode assemblies (3), lifting device includes the ground jack being made of main body (611) and the ground jack bar (612) extended along the longitudinal axis (B-B') (61) and the anode receiver (62) of the one end for being designed to receive anode construction (32), ground jack (61) are connected to sun To drive it along translation shaft (T-T') translational movement between retracted position and expanded position, feature exists pole receiver (62) Longitudinal axis (B-B') in ground jack (61) is parallel with translation shaft (T-T') of anode receiver (62) and detaches.
2. electrolytic cell according to claim 1, wherein lifting device further include a bar (612) in ground jack (61) and Lateral connection beam (63) between anode receiver (62), the tie-beam (63) is preferably along perpendicular to ground jack (61) The lateral shaft of longitudinal axis (B-B') extends.
3. electrolytic cell according to claim 2, wherein by the bar (612), tie-beam (63) and anode receiver of ground jack (62) component constituted forms U- type structures.
4. the bar of the electrolytic cell according to any one of Claims 2 or 3, wherein tie-beam (63) and ground jack (61) (612) it is interdependently mounted, and tie-beam (63) is interdependently mounted with anode receiver (62).
5. electrolytic cell according to any one of claim 1 to 3, Anodic receiver (62) includes one along translation The stick (621) that axis (T-T') extends.
6. electrolytic cell according to claim 5, Anodic receiver includes a pedestal in one end of stick (621) (622), the pedestal (622) is designed to receive the end of anode construction (32).
7. electrolytic cell according to claim 6 further includes one for anode construction (32) to be attached to pedestal (622) Fixed system.
8. electrolytic cell according to claim 7, wherein fixed system include that anode construction (32) is made to be close to pedestal (622) Device.
9. a part for electrolytic cell according to claim 5, medium rod (621) be electrically connected to flexible electrical conduction device so that Energy is provided to each anode assemblies (3).
10. electrolytic cell according to claim 5, medium rod (621) is rectangular or square section.
11. electrolytic cell according to any one of claim 1 to 3 further includes for guiding sun along translation shaft (T-T') Mobile anode receiver (62) guide device (64) of pole receiver (62).
12. at least partly about anode receiver of electrolytic cell according to claim 11, wherein guide device (64) (62) and the sliding guidance path for being used for anode receiver is limited.
13. electrolytic cell according to any one of claim 1 to 3, wherein lifting device be connected to electrolytic cell so that The translation shaft (T-T') of each anode receiver (62) is vertical.
14. electrolytic cell according to any one of claim 1 to 3, wherein each anode construction (32) is horizontal in electrolytic cell Extend to ground and corresponding a pair of of lifting device of the longitudinal side wall setting opposite with what it is along pot shell (1) contacts, it is each to be promoted Device carries an end of anode construction (32).
15. electrolytic cell according to claim 14 further includes that a controller for being connected to lifting device is each pair of to control The synchronizing moving of lifting device.
16. electrolytic cell according to any one of claim 1 to 3, which further includes one and is born on pot shell (1) Constraint room (2), which includes the side wall (22) of lateral side wall (21) and longitudinal direction, which is designed to The confined volume for constraining ice crystal bathing pool (14) overhead gas is limited, each lifting device (6) is fixed to constraint room (2) Longitudinal side wall in one.
17. electrolytic cell according to claim 16, wherein side wall of the side wall (21,22) of constraint room (2) with respect to pot shell (1) (11,12) are outwardly biased so that the side wall (21,22) of constraint room (2) is around the side wall (11,12) of pot shell (1) and upper Fang Yanshen, pot shell (1) and the side wall (11,12,21,22) for constraining room (2) are mechanically connected by annular arm support, lifting device Anode receiver (62) pass through arm support in hole extend.
18. electrolytic cell according to claim 17, wherein translation shaft (T-T') are vertical, anode receiver (62) can Opening vertical translation in arm support it is mobile.
19. according to the electrolytic cell described in any one of claim 17 or 18, Anodic receiver (62) passes through annular dynamic Sealing element passes through constraint room (2).
20. electrolytic cell according to claim 16, wherein each lifting device is fixed to and the opposite constraint of pot shell (1) The top edge of room (2) is so that the ground jack main body of each lifting device is positioned in the height higher than ice crystal bathing pool height Place.
21. electrolytic cell according to claim 20, wherein the free end that each lifting device (6) passes through ground jack (61) (613) top edge of constraint room (2) is fixed to so that the free end (613) are farther compared with the bar (612) of treasure (61) Substrate (10) from pot shell (1).
22. electrolytic cell according to any one of claim 1 to 3, wherein each ground jack extends on the outside of electrolytic cell.
23. electrolytic cell according to any one of claim 1 to 3, which, which further includes one, has at least one gas The gas collector (5) of body capture set, the gas entrapment set prolong along the top edge of the longitudinal side wall (22) of constraint room (2) It stretches, and there is the suction hole for air-breathing, each lifting device (6) is fixed on the capture set above.
CN201580006072.XA 2014-01-27 2015-01-23 Include the electrolytic cell of anode assemblies lifting device Active CN105940146B (en)

Applications Claiming Priority (3)

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FR1400172 2014-01-27
FR1400172A FR3016895B1 (en) 2014-01-27 2014-01-27 DEVICE FOR LIFTING ANODIC ASSEMBLIES OF AN ELECTROLYSIS TANK.
PCT/IB2015/000068 WO2015110901A1 (en) 2014-01-27 2015-01-23 Electrolysis tank comprising an anodic assembly hoisting device

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WO2015110901A1 (en) 2015-07-30
RU2016134821A3 (en) 2018-10-04
BR112016015625A2 (en) 2017-08-08
CN105940146A (en) 2016-09-14
DK179216B1 (en) 2018-02-12
EP3099840A4 (en) 2018-02-07
AU2015208855B2 (en) 2018-08-23
RU2684025C2 (en) 2019-04-03
CA2935439C (en) 2022-03-29
FR3016895A1 (en) 2015-07-31
EP3099840B1 (en) 2019-07-24
DK201670537A1 (en) 2016-08-22
AU2015208855A1 (en) 2016-07-28
EP3099840A1 (en) 2016-12-07
BR112016015625B1 (en) 2022-02-01
FR3016895B1 (en) 2017-09-08
RU2016134821A (en) 2018-03-02
CA2935439A1 (en) 2015-07-30

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