CN105940147B - Electrolytic cell pot shell - Google Patents
Electrolytic cell pot shell Download PDFInfo
- Publication number
- CN105940147B CN105940147B CN201580006167.1A CN201580006167A CN105940147B CN 105940147 B CN105940147 B CN 105940147B CN 201580006167 A CN201580006167 A CN 201580006167A CN 105940147 B CN105940147 B CN 105940147B
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- Prior art keywords
- pot shell
- electrolytic cell
- window
- side wall
- sealing chamber
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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
-
- 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
-
- 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
- C25C3/14—Devices for feeding or crust breaking
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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)
Abstract
The present invention relates to a kind of electrolytic cells, the electrolytic cell includes a pot shell (1), the pot shell is capped there are one lining and with substrate (10) and side wall (11, 12), pot shell (1) is designed to receive an ice crystal bath, one sealing chamber is arranged on the pot shell, the sealing chamber has side wall, at least one side wall of the sealing chamber compared with the pot shell biased outward from a side wall to the pot shell, the electrolytic cell has at least one peripheral shoulder (16 extended between the pot shell and the biasing side wall of the sealing chamber, 17), each shoulder has at least one window (18a), the window is passed through along the corresponding cell component of translated axis line T T' translational movements.
Description
Technical field
The present invention relates to by the electrolytic cell that (cryolite bath) is bathed comprising ice crystal electrolytic production of aluminum it is general
Technical field.
Relate more specifically to a kind of pot shell for being designed to the electrolytic cell comprising the bath of such a ice crystal.Anode is specifically
It is made of the carbon of prebake conditions type.
Background technology
Mostly by be dissolved in ice crystal bath in alumina electrolytic production of aluminum.
At present, aluminium is produced in a kind of electrolytic cell at industrial scale, which particularly includes：
- one parallelepiped pot shell, including substrate and side wall, which opens wide at an upper portion thereof,
- one covers the substrate of the pot shell and the refractory liner of side wall,
- one cathode based on carbon anode/cathode block, the carbon anode/cathode block are disposed in the pot shell and are connected to use
In the electric conductor of transmission Faradaic current.
Electrolytic cell further includes an ice crystal bath, and ice crystal bath is included in the pot shell and specifically by ice crystal and dissolving
Alumina composition.
The carbon block for forming the prebake conditions of the anode of anode assemblies is immersed in ice crystal bath, and with the electricity of production aluminium
Solution reaction is consumed.
One horizontal superstructure is installed on the pot shell of the electrolytic cell.This superstructure is for example placed on this
Just extending over the ground on pot shell and with it on the opening of the pot shell.The superstructure is used to be supported in the opening of the pot shell
The different components of face and the electrolytic cell that it is just being arranged over the ground, such as：
- lifting device is designed to as anode is consumed the anode be made to be reduced in the electrolytic cell,
- reactant feedway is designed to allow the reactant being consumed during cell reaction and inserts the ice crystal
In stone bath,
- one polluted gas collecting device is designed to prevent the polluted gas generated during cell reaction-such as,
Carbon dioxide, carbon monoxide, sulfur dioxide and gaseous hydrogen fluoride-be released in air.
Finally, electrolytic cell usually tool is there are one lid arrangement, and the lid arrangement is by being placed on top edge and the top of the pot shell
A series of covers between structure are formed.The lid arrangement is designed to cover the open-top portion between the pot shell and the superstructure
Point, gas pollutant is enclosed in the electrolytic cell.
In the bottom of the electrolytic cell, one layer of liquid aluminium being removed by absorption or suction period is formd.
One shortcoming of the electrolytic cell of this type is the risk that gas pollutant escapes into outside.These wind of gas effusion
The reason for danger can be different.
Specifically, the various products used in cell reaction-such as, covering product-can be deposited in described in support
On the edge of the pot shell of cover.This accumulation of product may interfere with cover described in correct placement.This causes the top edge in the pot shell
And there is polluted gas leakage between the cover of every one side of the electrolytic cell is arranged in.
In addition, the anode rod of anode assemblies passes through the lid arrangement.These anode rods pass through this with gas in order to prevent
The dynamic sealing means association that engaging zones effusion between lid arrangement and the anode rod provides.However, the dynamic is close
Seal apparatus is likely to be broken, especially during the anode for operating the anode rod to be exhausted with new anode replacement.To described
The damage of dynamic sealing means causes the engaging zones between the lid arrangement and the anode rod polluted gas leakage occur.
Another shortcoming of the electrolytic cell of this type is related to the anode unit when the anode exhausted with new anode replacement
The moving movement of part.The appearance of superstructure on the pot shell opening hampers the vertically movable of the anode assemblies.Cause
This needs using the complicated moving movement of the anode assemblies around this superstructure to allow to take out it from the electrolytic cell
.
An object of the invention is to propose a kind of electrolytic cell for overcoming at least one disadvantages mentioned above.Specifically, it is of the invention
A target be to propose a kind of have to the improved sealing of gas pollutant and wherein convenient for taking out the electricity of anode assemblies
Xie Chi.
The content of the invention
For this purpose, the present invention proposes a kind of electrolytic cell for being used to produce aluminium, which includes a pot shell, the pot shell quilt
Covering is there are one lining and has substrate and side wall, which is designed to receive an ice crystal bath, it is characterised in that the electricity
Xie Chi further includes a sealing chamber with the side wall extended on the side wall of the pot shell, at least one side wall of the sealing chamber
With respect to the pot shell side wall to the biased outward of the pot shell, and the biasing side wall of the pot shell and the sealing chamber passes through shoulder
(shoulder) mechanically connected, which has at least one window, and corresponding cell component is along the axis by the window
T-T' translational movements pass through the window.
In the context of the present invention, when sealing chamber side wall bottom margin with respect to pot shell side wall top edge water
During flat biasing, the side wall of the sealing chamber is considered as the side wall biasing of the opposite pot shell.Mean outside pot shell opposite
In the side opposite with inside pot shell of the side wall.
The shoulder advantageously prolongs between the top edge of the side wall of the lower edge and pot shell of the biasing side wall of the sealing chamber
It stretches.The solid wall of sealing between the pot shell that the shoulder is more specifically to provide the biasing side wall of sealing chamber and it is mechanically connected.
The shoulder can also be supported advantageously and ensure the mechanical integrity of sealing chamber.
The electrolytic cell is included in (or multiple) shoulder between the pot shell and the sealing chamber.There are one each shoulder tools
(or multiple) window passes through the window, particularly vertically along the translatable components moved of translated axis line T-T' by the window
In the face of window extension.
This concrete configuration along the corresponding cell component of the axis T-T' translational movements through the window (that is, for passing through
Shoulder/window form) for limiting the size of the window, to prevent polluted gas from escaping into the outer of the electrolytic cell by the window
Face.
This concrete configuration also causes the movable part of electrolytic cell --- such as, promotion or drilling device --- it is arranged in
The periphery of the pot shell is possibly realized, unlike in the electrolytic cell of the prior art, removable lifting means and/or drilling device are usual
It is just being placed over the ground with the opening limited by the wall of the pot shell.Lifting means and/or drilling device are placed on to the periphery of the pot shell
The fact it is meant that the anode assemblies they travel vertically during be not blocked.This makes it easier to the envelope for generating sealing
Closed chamber and anode assemblies is allowed to be replaced at the top of the electrolytic cell, without the mobile fortune that anode assemblies experience is complicated
It is dynamic.
The sealing chamber helps to close electrolytic cell gas so that being easier to capture and handling them.The sealing chamber is advantageously
Including a removable hood device, which closes the opening formed by the top of the side wall of the sealing chamber, not have
Have and anode assemblies are replaced by the top of the electrolytic cell with hindering.An opening is formed in removable hood device, with from the envelope
Closed chamber takes out anode assemblies or anode assemblies is inserted into the sealing chamber.
The preferred unrestricted aspect of electrolytic cell according to the present invention is as follows.
Preferably, which has the first and second lateral sidewalls and the first and second longitudinal side walls, sealing chamber tool
There are the first and second lateral sidewalls extended on the first and second lateral sidewalls of the pot shell and first in the pot shell
The first and second longitudinal side walls extended above with second longitudinal direction side wall, the of the first longitudinal direction side wall opposed slot shell of sealing chamber
One longitudinal side wall is to the biased outward of pot shell, and the first longitudinal direction side wall of pot shell and sealing chamber passes through at least one window
Shoulder is mechanically connected, and the window is passed through along the corresponding cell component of the axis T-T' translational movements through the window.
The shoulder is preferably formed at least one longitudinal direction side of the electrolytic cell, lifting means and/or drilling device can
To be arranged then along at least one longitudinal direction side of the electrolytic cell.
In addition, more specifically, first and second longitudinal side wall of sealing chamber is with respect to corresponding the first of pot shell and
For two longitudinal side walls to the biased outward of pot shell, corresponding first and second longitudinal side wall of pot shell and sealing chamber passes through shoulder machinery
Ground connects, and each shoulder has at least one window, along the corresponding electrolytic cell group of the axis T-T' translational movements through the window
Part passes through at least one window.
First and second longitudinal side wall of the pot shell is between first and second longitudinal side wall of the sealing chamber
With following extension.
One shoulder is then advantageously fabricated in two opposite longitudinal direction sides of the electrolytic cell, so that the promotion is set
Standby and/or drilling device is symmetrical, is each associated by convention with an alumina supply arrangement.
The electrolytic cell is additionally may included in the top edge of the side wall of the pot shell and the side wall of the sealing chamber
The four peripheral shoulders extended between bottom margin.This particularly for the component to be arranged as four side walls in the pot shell
Translatable movement is possibly realized between four side walls of the sealing chamber.
Each shoulder can form the pot shell and/or a part for the sealing chamber.Such as：
- the pot shell can include the top edge along first and second longitudinal side wall of the pot shell to by the pot shell
Two peripheral shoulders of the external extension in the space of restriction, the sealing chamber do not have shoulder and are placed on the shoulder of the pot shell
On,
- the sealing chamber can include the lower edge along first and second longitudinal side wall of the sealing chamber to by this
The space that sealing chamber limits extends internally two peripheral shoulders, which does not have shoulder and sealing chamber is placed on the pot shell
The side wall top edge on,
- the pot shell and the sealing chamber can each have there are two peripheral shoulder, and the shoulder of the pot shell is along the pot shell
The top edge of first and second longitudinal side wall extend to the external of the space limited by the pot shell, and the sealing chamber
The shoulder along the lower edge of first and second longitudinal side wall of the sealing chamber to the sky limited by the sealing chamber
Between internal stretch；The pot shell and the sealing chamber each there is the fact that shoulder the sealing chamber to be caused to be easier to be supported on the pot shell
Stability that is upper and improving the stacked body being made of the pot shell and the sealing chamber,
- the pot shell and the sealing chamber can also be a single piece for also including shoulder.
The pot shell and sealing chamber are each preferably into the shape of parallelepiped.The electrolytic cell then advantageously has one
The shape of two parallelepipeds of a placement on the other side, the parallelepiped (sealing chamber) on top is slightly than lower part
Parallelepiped (pot shell) is wide.
Preferably, each window extends at one on the face of translated axis line T-T'.Translated axis line T-T' can be
Vertical (or essentially vertical).In the case, each window extends in a horizontal plane.Similarly, each shoulder can be with
It is substantially horizontal.Therefore the sealing between the window of shoulder and translation cell component is contributed to.
In an alternative embodiment, each window has the cross sectional shape to the corresponding cell component through the window
Complementary shape, especially similar shape.This minimizes the size in the gap between the window and the movable-component, with
The risk that limitation polluted gas is escaped from the gap.In some embodiments, each component is via a dynamic sealing
Through a corresponding window, a dynamic sealing is especially ring-shaped.Each sealing element is for example pacified around the translation component
On the edge of window.This leakproofness for be further improved the electrolytic cell.Preferably, each window is with passing through it
Component electrical isolation.
According to an alternate embodiment, which is included in the side opposite with the substrate of the pot shell and projects upwards at least
One tooth (cr é neau), the window formed at least one tooth.
The manufactured window height that therefore the opposite ice crystal is bathed is increased in the top of the tooth, is put down with limitation by the window
The opposite heat, gas and the exposure for covering product by ice crystal bath generation of mobile component.
Different types of translatable moving parts can be associated with a window.For example, when the electrolytic cell has by along axis
The sun of anode assemblies is taken out in the translatable movements of line T-T' anode assemblies to be immersed in ice crystal bath or from ice crystal bath
During at least one anode assemblies of pole receiver support, the shoulder of the window can be associated with the anode receiver, each window
Allow a corresponding anode receiver come through.
According to a preferred embodiment, the anode assemblies are from a longitudinal side wall of the sealing chamber to another longitudinal direction
Side wall is through the electrolytic cell and is placed on through the window for two shoulders being arranged in the opposite longitudinal direction side of the electrolytic cell
On two anode receivers.The anode assemblies are then very stably placed in the support and translation mobile device, and to the envelope
The leakproofness of closed chamber does not influence.
Certainly, the window (or other windows) (such as, can supply with the component of other kinds of translational movement to anode
The electric current transmission equipment or drilling device of electricity) association.
Particularly, in one embodiment, which includes one in the surface formation of ice crystal bath
To bathe the drilling device of feed (especially alumina) to the ice crystal, shoulder has to be worn manufacturing hole by the drilling device on curst
At least one window crossed, the part (stick) for being especially translated mobile drilling device pass through.
Increased to limit the drilling with the height of the associated window of the drilling device therefore opposite ice crystal bath and be set
Standby opposite heat, gas and the exposure for covering product by ice crystal bath generation.
Preferably, each shoulder is included at least one fixed equipment on the one side of the shoulder opposed substrate, such as one
A plate that there are pass through openings and form to carry the attachment point of the pot shell.This to move the electrolysis with a handling unit
Pond is easier, the handling unit typically comprise a mobilecrane, one can be moved on the mobilecrane
Dynamic bracket (carriage), the mobilecrane are removably attached to the pot shell using such as hanging beam.
Each shoulder can prolong along the whole length of the longitudinal direction of the pot shell and/or the sealing chamber (correspondingly laterally) side wall
It stretches.This so that the whole length that the translatable moving assembly is respectively arranged in the electrolytic cell along axis T-T' is (corresponding
Ground width) on.
Advantageously, the side wall of the sealing chamber and the pot shell can as the outer attachment point placed in the electrolytic cell,
It is typically secured to the equipment of the opening of pot shell above in the prior art for those.In this way, the electrolytic cell can include fixing
To the sealing chamber the side wall and/or the pot shell the side wall on for promoted the anode assemblies device, drilling
Equipment, gas gathering system and alumina supply arrangement.
Preferably, the pot shell, the shoulder and the sealing chamber are single pieces.Which has limited it is related with thermal expansion problem
The risk of the leakage of engaging zones between the pot shell, the shoulder and the sealing chamber.Alternatively, the pot shell, the shoulder and
The sealing chamber can be divided into two (or more than two) parts.
Description of the drawings
From below with reference to the accompanying drawings to being incited somebody to action clearly in the description of the specific embodiment provided by way of non-limiting example
Understand to Chu other characteristics and advantage of the electrolytic cell, in the accompanying drawings：
- Fig. 1 shows the longitdinal cross-section diagram of an electrolytic cell,
- Fig. 2 shows the view in transverse section of two adjacent cells,
- Fig. 3 is the partial view for the electrolytic cell for including a drilling device,
- Fig. 4 is the perspective schematic view of the pot shell of an electrolytic cell,
- Fig. 5 shows the stereogram of an electrolytic cell.
Specific embodiment
One embodiment of electrolytic cell according to the present invention will now be described.In these different figures, identical element tool
There is identical reference number.
Word " side wall ", " substrate " and " open top " is used below 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 face/wall of the cuboid extended in a face perpendicular to substrate,
- " longitudinal surface/wall " means vertical face/wall of cuboid, other sides of at least one size ratio of the face/wall/
The size of wall is big.
- " horizontal face/wall " means to be transversely to the machine direction vertical face/wall of face/wall extension.
Referring to figs. 1 to Fig. 3, one embodiment of electrolytic cell according to the present invention is instantiated.
Electrolytic cell is substantially rectangular and including a pot shell 1, sealing chamber 2, multiple anode assemblies 3, cathode 4, gas
5, (or multiple) drilling devices 6 of body collecting device and multiple lifting means 7.
This electrolytic cell is used for the production of aluminium.The electrolytic cell can be associated with other multiple optionally identical electrolytic cells,
Multiple electrolytic cells are set in succession, and two continuous electrolytic cells are adjacent at their longitudinal side wall.
With reference to figure 4, pot shell 1 is substantially the shape of parallelepiped.It is horizontal that the pot shell includes a substrate 10, first and second
To 11 and first and second longitudinal side wall 12 of side wall.Pot shell 1 also has what is extended on the outside of substrate 10 and side wall 11,12
Mounting 13.These mountings 13 are used to mechanically strengthen pot shell 1.
The pot shell 1 can be metal, such as is made of steel.The substrate 10 of pot shell 1 and the inner surface coating of side wall 11,12
It is stamped the refractory material block 14 for keeping the temperature pot shell 1.Block 14 can be for example including fire proof material brick and/or carbon block.
Sealing chamber 2 defines an enclosure space above ice crystal bath 19, is moved in the sealing chamber Anodic component 3
It is dynamic.
Sealing chamber 2 is arranged on the top edge of pot shell 1.The sealing chamber includes the first and second lateral sidewalls 21 and is fixed to
First and second longitudinal side walls 22 of pot shell 1.
Preferably, the side wall 21,22 of sealing chamber 2 is outwardly biased compared with the side wall 11,12 of pot shell 1, so that sealing chamber 2
Side wall 21,22 extend around and above the side wall 11,12 of pot shell 1, the side wall 11,12,21,22 of pot shell 1 and sealing chamber 2 is logical
Later the shoulder 16,17 that face will be described in further detail is mechanically connected.
Sealing chamber 2 also includes removable cover 23 to cover the open top limited by four side walls 21,22 of sealing chamber 2.
Cover 23 can be made of the one group of plate substantially extended in a face, and can be supported on the top of the side wall 21,22 of sealing chamber 2
On edge, and put on specifically in the gas collection of the upper edge extension of sealing chamber 2.
Pot shell 1 at the top of it 15 open wide.The electrolytic cell has in the top edge of side wall of pot shell and the side wall of sealing chamber
Bottom margin between one (or multiple) extending peripheral shoulder 16,17.
Each periphery shoulder 16,17 parallel to pot shell 1 substrate 10 to the outside of pot shell 1 (correspondingly, in sealing chamber
Face) extension.The shoulder can form a part for pot shell 1 and/or sealing chamber 2.
Each shoulder 16,17 is associated with the side wall 11,12 (correspondingly 21,22) of pot shell 1 (correspondingly sealing chamber).
In the embodiment being specifically shown in FIG. 4, which is included along on one of the side wall 11,12 of pot shell 1
Four peripheral shoulders 16,17 of portion edge extension：
- two peripheral shoulders 16 in longitudinal direction, longitudinally in each top of the peripheral shoulder 16 along the corresponding longitudinal side wall 12 of pot shell 1
Edge extends,
- two horizontal peripheral shoulders 17, top of each laterally peripheral shoulder 17 along the respective transversal side wall 11 of pot shell 1
Edge extends.
Alternatively, pot shell 1 (and/or sealing chamber) can include (can be each)：
The peripheral shoulder 16 in-single longitudinal direction or
The peripheral shoulders 16 in-two longitudinal directions or
The peripheral shoulder 16 in-one (or two) longitudinal direction and a horizontal peripheral shoulder 17.
Each shoulder 16,17 can include (or multiple) window 18a, when the electrolytic cell operationally, along axis T-
The cell component of T' translational movements passes through the window.The cell component can be along translated axis line T-T' translational movements
A part for lifting means 7, such as, the anode receiver 72 for the anode lifting equipment 7 that will be described in further detail below.
In this way, each window 18a is associated with through its corresponding cell component, the cell component is in two limit
It is moved between position along translated axis line T-T' is translatable.
Advantageously, each window 18a extends perpendicular to a face of translated axis line T-T'.This causes by making them independent
Make it possible that the size of window 18a reduces in the movement of the component along translated axis line T-T' translational movements.
In the embodiment illustrated in fig. 2, each window 18a to along corresponding sun vertically movable translated axis line T-T'
Pole receiver 72 associates.In this case, window 18a extends in a horizontal plane.It is not always the case to each shoulder 16,17.
The shape of each window 18a can be with the cross sectional shape of the component through the window (along perpendicular to translated axis line T-
A face of T') it is complementary.This causes the size of window to minimize to limit the risk that polluted gas is escaped to the outside of electrolytic cell
It is possibly realized.With reference to figure 4, each window 18a is the rectangle with their the section rectangular shape complementation for associating anode receiver 72
Shape.
Advantageously, each window 18a of pot shell 1 can include a sealing element extended on its edges so that this is close
Sealing surrounds and the associated translatable moving assembly of the window.This causes the leakproofness for improving the electrolytic cell to lead to limit polluted gas
Cross the risk of the window effusion.
The sealing element can be designed as and be arranged in the hermetic unit cooperating on slide assemblies.In such situation
Under, during translational movement of the component between extreme position, which extends through this along the region of slide assemblies
Sealing element.In this way, the leakproofness of the electrolytic cell be ensured that but regardless of the component translational movement how.
If the edge for the window that the slide assemblies are passed through with it is not at identical potential, around hermetic unit typical case
Annular dynamic sealing element can also serve as being electrically insulated.
Each (or some) shoulder 16,17 can also include (or multiple) window 18b, and a part for drilling device 6 is worn
The window is crossed, this will be described in further detail below.
The shape of each window 18b can be with the cross sectional shape of the component through the window 18b (along perpendicular to translated axis line
A face of T-T') it is complementary, to limit the risk that polluted gas is escaped to the outside of electrolytic cell.With reference to figure 5, each window 18b tools
There is the circular shape with the cylinder form complementation of the component of its associated drilling device 6.
Sealing element can be arranged on the edge of each window 18b so that the sealing element is translatable around drilling device 6
Moving parts.
Sealing element can be designed as and be arranged in the hermetic unit cooperating on the component of drilling device 6, the part
It slides through and extends in the whole region of the component of the sealing element when translational movement between extreme position of the component at it.
Window 18a and 18b can extend in the same face.
Alternatively and as shown in Figure 5, window 18a and 18b can extend in different faces.
In the embodiment being specifically shown in FIG. 5, each shoulder 16,17 is included in the opposite of the substrate 10 of pot shell 1
The tooth just projected upwards.
Each tooth tool forms a corresponding window 18b so that window 18b extends there are one horizontal plane in the horizontal plane
To the height of the height bigger than window 18a.
Advantageously, the side wall 21,22 of sealing chamber 2 can be carried on the upper edge of pot shell 1 in the free end of shoulder 16,17
On edge.The surface area of the opening limited as a result, by the lower edge of the side wall 21,22 of sealing chamber 2 is essentially equal to following table
The sum of face area：
The surface area of-shoulder 16,17 and
The surface area of-the upper opening limited by the top edge of the side wall 11,12 of pot shell 1.
Preferably, pot shell 1, shoulder 16,17 and sealing chamber 2 are single pieces.Which has limited the pot shell and the sealing chamber it
Between engaging zones at leak risk.These risks are originally very big, because pot shell 1 and sealing chamber are compared with by electrolytic cell
Expansion will show different caused by high running temperature.
Alternatively, pot shell, shoulder 16,17 and sealing chamber can be divided into two (or more than two) parts.In an implementation
In scheme, pot shell 1 and sealing chamber 2 each have the shoulder extended as follows：
- for the shoulder of pot shell 1, the top edge along longitudinal direction (and horizontal) side wall of the pot shell extends,
- for the shoulder of sealing chamber 2, the lower edge along longitudinal direction (and horizontal) side wall of the sealing chamber extends.
The shoulder is preferably perpendicular to the side wall extension of pot shell 1 and sealing chamber 2, and each shoulder of sealing chamber 2 can be with
The respective peripheral shoulder contact of pot shell 1.
Simultaneously shoulder present on the side wall of pot shell 1 and sealing chamber 2 make sealing chamber 2 bear on pot shell 1 be easier and
Improve the stability for the stacked body being made of pot shell 1 and sealing chamber 2.
As described above, each shoulder can extend along the whole length of the side wall of sealing chamber 2 (correspondingly pot shell 1), seal
Each be included at the position overlapped when sealing chamber 2 is placed on pot shell 1 one of the shoulder of closed chamber 2 and pot shell 1 is (or more
It is a) window.
Each anode assemblies 3 include an anode 31 and anode construction 32.Anode construction 32 is first so that operation anode 31
It is possibly realized, and secondly to provide it with electric power.During cell reaction, the anode of ice crystal bath is immersed in
31 are consumed.The needs of anode assemblies 3 are periodically replaced.
Anode 31 is preferably the carbon material block of prebake conditions type.
Anode assemblies 3, and the anode construction 32 of more specifically each anode assemblies 3, in the vertical side of the edge 22 of sealing chamber 2
Between electrolytic cell in extend laterally.The anode construction particularly includes a transverse cross beams.The electrolytic cell is included along the electricity
Multiple anode assemblies 3 of the longitudinal axis distribution of Xie Chi.
The anode construction can include one by having frame made of the metal of good mechanical strength (such as, steel).
This allows the anode construction to be hung the anode assemblies.The anode construction can also include by having good electrical conductance
Segment made of metal (such as, copper or aluminium).This allows anode construction transmission electric power to power to the anode assemblies.
Cathode 4 can include multiple cathode blocks made of carbon materials.
Cathode 4 is connected to the Faradaic current electrical conduction device particularly formed by one or more conductors in its lower part
41.More specifically, each cathode block has at least one chamber in its low portion, electrical conduction device is disposed in the chamber
41。
It is physically and electrically connected well by using cast iron realization in chamber between cathode block 4 and electrical conduction device 41.
The conductor passes through pot shell 1 at the hole in pot shell 1 (especially substrate 10 or longitudinal side wall 12).
The conductor collects the electric current at cathode so that it is sent to another electrolytic cell from an electrolytic cell.
Gas collection equipment 5 is retracted in the polluted gas that is generated during cell reaction to handle them.
Gas collection equipment 5 includes one (or multiple) and captures set, and the suction for gas is distributed on capture set
Air entry.
Capture set is associated with (or multiple) pumping equipment (not shown).Capture is sleeved on the longitudinal side wall 22 of sealing chamber 2
Upper extension, and optionally extend in the lateral sidewalls 21 of sealing chamber 2.Along the presence of the opening of the longitudinal wall 22 of sealing chamber 2
Make it possible improve gas pollutant collection efficiency.
Advantageously, the quantity of the opening of collecting device 5 can be equal to the quantity for the drilling device 6 for being attached to electrolytic cell.
Under such circumstances, each opening can drilling device 6 corresponding with one associate and close to its placement.
Advantageously, each capture set can be square or rectangular section, and (all by the material with high mechanical properties
Such as, steel) it is made.This hardness and strength for increase suction set.Therefore such a capture set is formd, this is caught
Set is obtained in addition to the basic function of guiding gas, is specifically used as tying up for the component being made of pot shell 1 and sealing chamber 2
The company of band (ceinture de cerclage) and multiple components (such as, drilling device 6 or lifting means 7) as electrolytic cell
Connect support.
To limit the size of electrolytic cell to capture set imparting multiple functions and make it possible it is more easily manufactured.
Drilling device 6 is used to the cured alumina formed during cell reaction on the surface of ice crystal bath 19 and bath
Manufacturing hole in curst.
This some holes is periodically formed so that multiple compounds (such as, alumina, ice crystal (Na3AlF6) or aluminum fluoride (AlF3))
It can be added to stablize the operating parameter of electrolytic cell.
Drilling device includes jack 61 and boring assemblies 62.
Boring assemblies 62 are designed to be arranged on the top for treating drilled curst.Jack 61 passes through U- types structure 63
Driving boring assemblies 62 vertically move back and forth to drill to curst, and the U- types structure is by being connected to the first and second of lateral core
The wing forms.
It the guide rod interdependence of first wing and jack 61 and elongates and extends along the translated axis line T-T' of the guide rod.Second
The wing and 62 interdependence of boring assemblies.
Thermal insulation part can be fixed between first wing and guide rod to limit heat propagation to the risk of jack 61, because
Increase the damage that may cause to it for the unexpected of temperature of jack 61.
It can be to provide the slide guiding device of the guide rod for jack 61 with 6 associated window of drilling device.These draw
Lead device so that the component that guiding is made of the guide rod of jack 61, boring assemblies 62 and U- types structure 63 translational movement into
For possibility.
For example, it can include around first wing with the associated each window 18b of drilling device 6 and form the guiding for slip
The track 64 of device.This track 64 extends on the edge of window 18b, and is preferably perpendicular to towards the substrate 10 of pot shell 1
Shoulder 16a, 17a outside (that is, shoulder compared with the space limited by closing chamber 2 face) it is prominent so that shoulder 16a, 17a
The minimized height of lateral core above.
Lifting means 7 allows to operate anode construction 32, and therefore operates anode assemblies 3.Specifically, lifting means 7 by with
Mobile anode assemblies 3 with carrying out vertical translation.
Each lifting means 7 corresponding to two of anode assemblies 3 associates, and each lifting means is placed on the one of anode assemblies
End.In this way, movement of the movement of each anode assemblies 3 independently of other anode assemblies 3 included in electrolytic cell.
Each lifting means 7 includes a jack 71 and an anode receiver 72.
Jack 71 is used to move anode receiver 72 along translated axis line T-T' vertical translations.
Anode receiver 72 includes a rectangular section along the longitudinal axis extension overlapped with translated axis line T-T'
Stick.A part (for example, near end of the substrate of pot shell) for the stick is electrically connected to flexible electrical conduction device so that anode assemblies
It can be powered.The upper end of the stick includes the seat at an end for being designed as receiving anode construction 32, shape and the anode knot of this
The shape at the end of structure is complementary.
For ensure anode receiver 72 along guide device vertically movable translated axis line T-T' can be arranged on
At the associated window 18a of anode receiver.
These guide devices can include allowing it in following position partially around (or multiple) ring of the stick
Between slide vertically：
- one retracted position, in the position this seat against the bath of nearly ice crystal surface and
The position of-one expansion, surface of this away from ice crystal bath in the position.
Lifting means is advantageously electrically isolated with pot shell 1 and closing chamber 2.
Reader will be appreciated that can be to foregoing invention in the case where not essence is away from new information disclosed herein
Make many modifications.
Such as in the above-described embodiment, window 18a is associated with lifting means 7, and window 18b is associated with drilling device 6.To this
Field it is obvious to the skilled person that window 18a and 18b can be with the electrolytic cells along translated axis line T-T' translational movements
Any other component liaison.In addition, with presented above on the contrary, window 18a can be associated with drilling device 6 and window 18b can be with
Lifting means 7 associates.
In addition, in description in front, window corresponds to two dimension and is open.In the case where three-dimensional is open, window corresponds in institute
The projection on a face of three-dimensional opening is stated, which defines an aisle spare for anode assemblies associated with it.
Claims (16)
1. for producing the electrolytic cell of aluminium, including：
One pot shell (1), the pot shell are capped there are one lining (14) and with substrate (10) and side wall (11,12), the pot shell
(1) it is designed to receive an ice crystal bath (19),
It is characterized in that
The electrolytic cell further includes a sealing chamber (2), which there is the side wall (11,12) in the pot shell (1) to extend above
Side wall (21,22),
At least one side wall (11,12) compared with the pot shell (1) in the side wall (21,22) of the sealing chamber (2)
In a biased outward to the pot shell (1), and the biasing side wall (11,12 of the pot shell (1) and the sealing chamber (2)；21,22)
Mechanically connected by shoulder (16,17), which has at least one window (18a, 18b), wherein along passing through the window
The corresponding assembly of the electrolytic cell of the axis T-T' translational movements of (18a, 18b) passes through the window.
2. electrolytic cell according to claim 1, the wherein shoulder (16,17) are under the biasing side wall of the sealing chamber (2)
Extend between the top edge of the side wall of edge and the pot shell (1).
3. electrolytic cell according to claim 1 or 2, the wherein pot shell (1) have the first and second lateral sidewalls (11) with
And first and second longitudinal side walls (12), the sealing chamber have：
- the pot shell (1) the first and second lateral sidewalls (11) above extension the first and second lateral sidewalls (21) and
- the first and second longitudinal side walls (22) extended above the first and second longitudinal side walls (12) of the pot shell (1),
The first longitudinal direction side wall (22) of sealing chamber (2) is compared with the first longitudinal direction side wall (12) of pot shell (1) to outside pot shell (1)
Face biases, and the first longitudinal direction side wall (12,22) of pot shell (1) and sealing chamber (2) passes through at least one window (18a, 18b)
Shoulder (16,17) it is mechanically connected, wherein the corresponding electricity along the axis T-T' translational movements through the window (18a, 18b)
It solves pond component and passes through the window.
4. the first and second longitudinal side walls (22) of electrolytic cell according to claim 3, wherein sealing chamber (2) are compared with slot
Corresponding first and second longitudinal side wall (12) of shell (1) is to the biased outward of pot shell (1), the phase of pot shell (1) and sealing chamber (2)
The first and second longitudinal side walls (12,22) answered are mechanically connected by shoulder (16,17), and each shoulder (16,17) has extremely
A few window (18a, 18b), wherein the corresponding electrolytic cell group along the axis T-T' translational movements through the window (18a, 18b)
Part passes through the window.
5. electrolytic cell according to claim 1 or 2, wherein sealing chamber (2) include a side wall closed by sealing chamber (2)
Top formed opening removable cap device.
6. electrolytic cell according to claim 1 or 2, wherein each window prolongs on a face perpendicular to translated axis line T-T'
It stretches.
7. electrolytic cell according to claim 1 or 2, wherein translated axis line T-T' are vertical that each shoulder generally exists
One horizontal plane extension.
8. electrolytic cell according to claim 1 or 2, wherein pot shell (1) and sealing chamber (2) are substantially parallel hexahedrons
Shape.
9. electrolytic cell according to claim 1 or 2, wherein each window has and the corresponding cell component through the window
Sectional shape complementary shape.
10. electrolytic cell according to claim 1 or 2, it is close which further includes a dynamic associated with each window
Sealing.
11. electrolytic cell according to claim 1 or 2, the wherein shoulder are included in the direction opposite with the substrate of the pot shell
At least one tooth of upper protrusion forms window (18b) at least one tooth.
12. electrolytic cell according to claim 1 or 2, the wherein electrolytic cell are included by anode receiver (72) support extremely
A few anode assemblies (3), the anode receiver can move to be somebody's turn to do so that the anode assemblies to be immersed along translated axis line T-T'
It is taken out in ice crystal bath or from ice crystal bath, which has at least one window (18a), a corresponding anode receiver
Through the window.
13. electrolytic cell according to claim 12, the wherein anode assemblies (3) pass through the electrolytic cell from the sealing chamber (2)
A longitudinal side wall (22) to another longitudinal side wall and be placed on through being arranged in the opposite longitudinal direction side of the electrolytic cell
Two shoulders (16,17) the window (18a) two anode receivers (72) on.
14. electrolytic cell according to claim 1 or 2, the wherein electrolytic cell are included on the surface that the ice crystal is bathed
At least one drilling device of manufacturing hole on the curst of formation, the shoulder have at least one window that the drilling device passes through.
15. electrolytic cell according to claim 1 or 2, the wherein pot shell, the shoulder and the closing chamber are single pieces.
16. electrolytic cell according to claim 1 or 2, the wherein electrolytic cell include anode assemblies and including being fixed to
The device for being used to be promoted the anode assemblies of the side wall (21,22) of sealing chamber (2) and/or the side wall (11,12) of pot shell (1),
Drilling device, gas gathering system and alumina supply arrangement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1400174A FR3016896B1 (en) | 2014-01-27 | 2014-01-27 | ELECTROLYTIC TANK HOUSING. |
| FR1400174 | 2014-01-27 | ||
| PCT/IB2015/000073 WO2015110905A1 (en) | 2014-01-27 | 2015-01-23 | Electrolysis tank casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105940147A CN105940147A (en) | 2016-09-14 |
| CN105940147B true CN105940147B (en) | 2018-06-01 |
Family
ID=50473518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580006167.1A Active CN105940147B (en) | 2014-01-27 | 2015-01-23 | Electrolytic cell pot shell |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP3099842B1 (en) |
| CN (1) | CN105940147B (en) |
| AU (1) | AU2015208859B2 (en) |
| BR (1) | BR112016015534B1 (en) |
| CA (1) | CA2935484C (en) |
| DK (1) | DK179169B1 (en) |
| FR (1) | FR3016896B1 (en) |
| RU (1) | RU2682729C2 (en) |
| WO (1) | WO2015110905A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071534A (en) * | 1989-01-23 | 1991-12-10 | Norsk Hydro A.S. | Aluminum electrolysis cell with continuous anode |
| RU2080419C1 (en) * | 1994-11-08 | 1997-05-27 | Акционерное общество открытого типа "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" | Anode unit of aluminium electrolyzer |
| CN202000002U (en) * | 2011-03-24 | 2011-10-05 | 运城市关铝设备材料有限公司 | Novel anticorrosion and anti-deformation heat preserving seal groove cover for electrolysis bath |
| WO2012021924A1 (en) * | 2010-08-16 | 2012-02-23 | Aluminium Smelter Developments Pty Ltd | Rodless anode cassette |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962599A (en) * | 1961-08-03 | 1964-07-01 | Montedison Spa | Electrolytic furnace for aluminium production |
| US3575827A (en) * | 1967-12-06 | 1971-04-20 | Arthur F Johnson | System for reduction of aluminum |
| SU549512A1 (en) * | 1974-07-22 | 1977-03-05 | Electrolyzer with baked anodes for aluminum production | |
| US4222841A (en) * | 1979-04-23 | 1980-09-16 | Alumax Inc. | Hall cell |
| CH651856A5 (en) * | 1981-07-14 | 1985-10-15 | Alusuisse | MELT FLOW ELECTROLYSIS CELL FOR THE PRODUCTION OF ALUMINUM AND HALL EQUIPPED WITH IT. |
| SU1337441A1 (en) * | 1985-12-30 | 1987-09-15 | Всесоюзный Научно-Исследовательский И Проектный Институт Алюминиевой,Магниевой И Электродной Промышленности | Shelter of aluminium electrolyzer with prebaked anodes |
| SU1571106A1 (en) * | 1988-03-25 | 1990-06-15 | Иркутский филиал Всесоюзного научно-исследовательского и проектного института алюминиевой, магниевой и электродной промышленности | Aluminium electrolyzer shelter |
| DE4118304A1 (en) * | 1991-06-04 | 1992-12-24 | Vaw Ver Aluminium Werke Ag | ELECTROLYSIS CELL FOR ALUMINUM EFFICIENCY |
| US5538607A (en) * | 1995-04-12 | 1996-07-23 | Pate; Ray H. | Anode assembly comprising an anode bar for the production of molten metal by electrolysis |
| CN1243852C (en) * | 2000-07-19 | 2006-03-01 | 阿尔科公司 | Insulation assemblies for metal production cells |
| ES2258170T3 (en) * | 2002-10-14 | 2006-08-16 | Aluminium Pechiney | EXHAUST LIMITER OF AN ELECTROLYSIS CELL. |
| EA029616B1 (en) * | 2013-08-09 | 2018-04-30 | Рио Тинто Алкан Интернэшнл Лимитед | Electrolytic device and anode assembly intended for the production of aluminium, electrolytic cell and apparatus comprising such a device |
-
2014
- 2014-01-27 FR FR1400174A patent/FR3016896B1/en not_active Expired - Fee Related
-
2015
- 2015-01-23 BR BR112016015534-3A patent/BR112016015534B1/en active IP Right Grant
- 2015-01-23 CA CA2935484A patent/CA2935484C/en active Active
- 2015-01-23 WO PCT/IB2015/000073 patent/WO2015110905A1/en active Application Filing
- 2015-01-23 EP EP15740596.0A patent/EP3099842B1/en active Active
- 2015-01-23 CN CN201580006167.1A patent/CN105940147B/en active Active
- 2015-01-23 AU AU2015208859A patent/AU2015208859B2/en active Active
- 2015-01-23 RU RU2016134823A patent/RU2682729C2/en active
-
2016
- 2016-07-19 DK DKPA201670544A patent/DK179169B1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071534A (en) * | 1989-01-23 | 1991-12-10 | Norsk Hydro A.S. | Aluminum electrolysis cell with continuous anode |
| RU2080419C1 (en) * | 1994-11-08 | 1997-05-27 | Акционерное общество открытого типа "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" | Anode unit of aluminium electrolyzer |
| WO2012021924A1 (en) * | 2010-08-16 | 2012-02-23 | Aluminium Smelter Developments Pty Ltd | Rodless anode cassette |
| CN202000002U (en) * | 2011-03-24 | 2011-10-05 | 运城市关铝设备材料有限公司 | Novel anticorrosion and anti-deformation heat preserving seal groove cover for electrolysis bath |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3099842A1 (en) | 2016-12-07 |
| EP3099842A4 (en) | 2017-11-22 |
| AU2015208859A1 (en) | 2016-07-28 |
| DK201670544A1 (en) | 2016-09-05 |
| RU2016134823A3 (en) | 2018-10-03 |
| DK179169B1 (en) | 2018-01-02 |
| BR112016015534B1 (en) | 2022-03-15 |
| FR3016896A1 (en) | 2015-07-31 |
| WO2015110905A1 (en) | 2015-07-30 |
| EP3099842B1 (en) | 2019-07-24 |
| BR112016015534A2 (en) | 2017-08-08 |
| RU2682729C2 (en) | 2019-03-21 |
| CA2935484A1 (en) | 2015-07-30 |
| RU2016134823A (en) | 2018-03-05 |
| CA2935484C (en) | 2021-06-08 |
| CN105940147A (en) | 2016-09-14 |
| FR3016896B1 (en) | 2016-01-15 |
| AU2015208859B2 (en) | 2019-02-21 |
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