CN205616961U - Pure aluminium cathode low energy consumption aluminium cell - Google Patents
Pure aluminium cathode low energy consumption aluminium cell Download PDFInfo
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- CN205616961U CN205616961U CN201620363659.8U CN201620363659U CN205616961U CN 205616961 U CN205616961 U CN 205616961U CN 201620363659 U CN201620363659 U CN 201620363659U CN 205616961 U CN205616961 U CN 205616961U
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- aluminium
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- negative electrode
- cell
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Abstract
The utility model provides a pure aluminium cathode low energy consumption aluminium cell, relates to and uses the improvement of an ice crystal oxidation aluminium melt as electrolyte, molten -salt growth method production aluminium cell. Its structure includes: prebaked anode, unloader, dust purification device, its its cathode system's of characterized in that structure includes: the electrolysis cell body, the negative pole partition wall of setting in the first ledge in both ends of cell body is separated to the electrit, negative pole partition wall bottom and electrit are separated going to the bottom of cell body and are equipped with end passageway, cell body end ledge inner wall shape side passageway is separated with the electrit to the negative pole partition wall, cathode bus, this cathode bus separates cell body end ledge inner wall shape side passageway by negative pole partition wall and electrit and gets into the electrolysis cell body. The utility model discloses a pure aluminium cathode low energy consumption aluminium cell to no cathode carbon block no rod iron does boron -free ization titanium coating's aluminium liquid replace the rod iron as the negative pole charcoal block group negative pole, eliminated aluminium oxide on the cathode carbon block that traditional aluminium cell exists deposit with cellular micro cell defect, in the electrolysis production process, do not have aluminium oxide that furnace bottom sedimentation generated, the aluminum carbide problem to the electrolytic aluminum liquid pollution.
Description
Technical field
A kind of fine aluminium negative electrode low energy consumption aluminium cell, relate to cryolite one alumina melt as electrolyte, molten-salt growth method raw
Produce the improvement of aluminium cell.
Background technology
At present, it is with cryolite one alumina melt as electrolyte that conventional electrolysis aluminum produces, with carbon as anode, with liquid
The cathode systems of aluminum, cathode carbon pieces, cathode steel bar composition is negative electrode, logical DC current, separates out CO at anode2Gas, at negative electrode
Separate out liquid aluminium.According to current technology, produce 1t metallic aluminium and about must consume 15000kw h electricity, aluminium electroloysis 940-960 DEG C
Process conditions under, the energy utilization efficiency of aluminium electroloysis is less than 36%.Conventional aluminum electrolytic cell currents by anode flow through electrolyte,
Aluminum liquid, flows out from negative electrode.Anode drop, electrode resistance pressure drop (including electrolyte, aluminum liquid), cathode drop height are to cause aluminium electroloysis
The major reason that energy utilization efficiency is low.
In aluminium cell resistance drop, cathode drop accounts for the 20% of resistance drop, and the negative electrode of aluminium cell is by aluminum in groove
Liquid layer and carbon cathode blocks composition, cathode drop is by aluminum liquid layer pressure drop in groove, aluminum carbon contact drop, carbon block pressure drop, carbon steel contact
The part composition such as pressure drop, rod iron pressure drop.At the initial stage (going into operation about 1 year) that electrolysis bath comes into operation, cathode drop is with electrolysis bath
The prolongation of use time, has the trend (improve with cathode carbon pieces degree of graphitization and reduce) being gradually lowered.The electricity of operation 2-3
Solving groove, cathode drop keeps relative stability.After, along with electrolysis bath uses the prolongation of time, cathode drop has and gradually rises
Trend.
Carbon-steel contact drop, carbon block electricity is produced between carbon block and the conduction rod iron of the carbon cathode blocks of conventional aluminum electrolysis bath
Pressure drop, carbon-steel contact drop first drop rise afterwards with groove increases in age.Contact interface voltage drop between electrolytic aluminium liquid and carbon block is by stove
The impact of bear building-up shelly state has bigger fluctuation.As a example by certain type aluminium cell, in the case of furnace bottom is without crust, electrolytic aluminium liquid
And the contact interface voltage drop between carbon block is between 20-28mv, carbon block voltage reduces to the carbon during 102mv, new groove-steel contact
Pressure drop is 69mv, and rod iron pressure drop is 186mv.Rod iron voltage drop during new groove accounts for the 48.8% of furnace bottom voltage drop.Particularly,
Carbon in carbon cathode blocks-steel contact drop increases along with the increase in groove age, trace it to its cause be due to: electrolysis bath was using
Cheng Zhong, groove electrolyte inside in carbon-steel contact site cooling, is formed to bottom percolation, the electrolyte penetrated by cathode carbon pieces
Nonconducting solid electrolyte layer, makes carbon-steel contact drop steeply rise.On traditional electrolyte groove cathode carbon pieces, it is easy to formed
Precipitation of alumina, the cellular precipitation that conventional aluminum electrolysis bath carbon block negative electrode is formed, the precipitation of alumina that cathode carbon pieces is formed,
Being affected by electrolysis bath cold-hot condition and change, precipitation can be pasty state, plate shelly or cellular, and pasty state, plate shelly are heavy
Shallow lake can make tank voltage raise 400mv-900mv, and cellular precipitation not only makes negative electrode hearth and bottom increase, moreover it is possible to formation with aluminum is
Anode, micro cell with cathode carbon pieces as negative electrode, generate aluminium oxide on the anode of micro cell, generate aluminium carbide on negative electrode,
The precipitation of alumina generated on carbon block negative electrode, increases electrolytic aluminium power consumption, reduces Aluminum Electrolysis Efficiency, the aluminium oxide generated,
Aluminium carbide causes electrolytic aluminium liquid to pollute.Conventional aluminum electrolysis bath schematic diagram is shown in that Fig. 1, tradition cell cathode carbon block group are shown in Fig. 2, pass
Solid insulation dielectric substrate schematic diagram between system aluminum cell cathode steel bar and carbon block is shown in Fig. 3, conventional aluminum electrolysis bath charcoal negative electrode
Fig. 4 is shown in by the cellular precipitation schematic diagram of upper formation.
In sum, the aluminium cell of the traditional structure of negative electrode, cathode steel bar voltage it are made up of aluminum liquid and carbon cathode blocks
Fall accounts for the 49% of hearth and bottom, substantially increases the power consumption of aluminium electroloysis；During electrolysis bath uses, the electrolysis penetrated
Liquid forms nonconducting solid electrolyte layer in carbon-steel contact site, makes carbon-steel contact drop steeply rise, and increases aluminium electroloysis
Power consumption；On cathode carbon pieces formed precipitation of alumina, not only make negative electrode hearth and bottom increase, moreover it is possible to formation with aluminum as anode,
Micro cell with cathode carbon pieces as negative electrode, the aluminium oxide of generation, aluminium carbide, increase electrolytic aluminium power consumption, reduce aluminium electroloysis electric current effect
Rate, causes electrolytic aluminium liquid to pollute simultaneously.
Summary of the invention
The purpose of this utility model be aiming at above-mentioned prior art exist deficiency, it is provided that one can effectively eliminate aluminum-
Carbon contact drop, carbon block resistance drop, carbon-steel contact drop, rod iron resistance drop, reduce aluminium electroloysis power consumption, improves aluminium electroloysis
The aluminium cell using aluminum as negative electrode of current efficiency.
The purpose of this utility model is achieved through the following technical solutions.
A kind of fine aluminium negative electrode low energy consumption aluminium cell, its structure includes: prebaked anode, blanking device, powder purification apparatus；
It is characterized in that the structure of its cathod system includes:
Cell body, this cell body is the spill cell body being made up of fire-resistant-insulation material；In cell body top edge
It is provided with ledge；
Negative electrode partition wall, in this partition wall is the two ends ledge being respectively arranged on electrit solution cell body and in cell body side channel side
Two partition walls that wall is affixed, are provided with end passage bottom partition wall and between the going to the bottom of electrit solution cell body；Negative electrode partition wall and electrit solution cell body
Termination ledge inwall shape wing passage；
Negative busbar, this negative busbar is entered electrolysis by negative electrode partition wall with electrit solution cell body termination ledge inwall shape wing passage
Cell body.
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, it is characterised in that its negative electrode partition wall is by cell body
Direction from inside to outside, is made up of carbon block and fire-resistant-insulation material successively, and its carbon block bottom is built aluminium oxide Ceramic Tiles.
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, it is characterised in that be provided with the two ends of negative electrode partition wall
The ledge of electrit solution cell body be outside, section be the ledge of " L ".
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, is " a kind of aluminium electroloysis side using aluminum as negative electrode
Method " the special electrolytic tank of patent application.During aluminum electrolysis, aluminium cell can use conventional anodes system, blanking system, powder
Dirt cleaning system, due to using without cathode carbon pieces-without rod iron-without the aluminum liquid of titanium boride coating as negative electrode, replace rod iron-carbon block group
Negative electrode, eliminates the precipitation of alumina on the cathode carbon pieces that conventional aluminum electrolysis bath exists and cellular micro cell defect, in electrolysis
In production process, there is not aluminium oxide, aluminium carbide problem that electrolytic aluminium liquid is polluted that bearth precipitation generates.
Accompanying drawing explanation
Fig. 1 is the conventional aluminum electrolysis bath schematic diagram of prior art, and in its figure, 1 is traditional electrolyte groove.
Fig. 2 is traditional cell cathode carbon block group schematic diagram of prior art, and in its figure, 2 is carbon cathode blocks.
Fig. 3 is the solid insulation dielectric substrate signal between conventional aluminum electrolytic cell cathode steel bar and the carbon block of prior art
Figure；In its figure, 2g is the solid insulation dielectric substrate between rod iron and carbon block.
Fig. 4 is the cellular precipitation schematic diagram formed on the conventional aluminum electrolysis bath charcoal negative electrode of prior art；In its figure, 2h is
The cellular micro cell formed on cathode carbon pieces.
Fig. 5 is the structural representation of a kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model；In its figure, 3 is sun
Pole, 4 is blanking device, and 5 is powder purification apparatus, and 6 is fine aluminium cathod system, and 6a is cell body, and 6c is negative electrode partition wall, and 7 are
Negative busbar, 11 is communication passage.
Fig. 6 is the cathode construction A-A planing surface schematic diagram of a kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model；Its
In figure, 6b be artificial stove side, 7 is negative busbar, and 8 is carbon block, 9 be sidepiece fire-resistant-heat-insulation layer, 10 is aluminium oxide ceramics brick, 11
For communication passage.
Detailed description of the invention
A kind of fine aluminium negative electrode low energy consumption aluminium cell, its structure includes: prebaked anode 3, blanking device 4, dust purification fill
Put 5(and see Fig. 5)；The structure (see Fig. 5, Fig. 6) of its cathod system 6 includes:
Cell body 6a(is shown in Fig. 5), this cell body is the spill cell body being made up of fire-resistant-insulation material；At electrolysis bath
Body top edge is provided with ledge 6b(and sees Fig. 6)；
Negative electrode partition wall 6c, helps with cell body side channel in this partition wall is the two ends ledge being respectively arranged on electrit solution cell body
Two partition walls that inwall is affixed, are provided with end passage bottom partition wall and between the going to the bottom of electrit solution cell body；Negative electrode partition wall and electrit solution groove
Body termination ledge inwall shape wing passage；
Negative busbar 7, this negative busbar is entered electricity by negative electrode partition wall with electrit solution cell body termination ledge inwall shape wing passage
Solve cell body.
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, its negative electrode partition wall 6c is by cell body from inside to outside
Direction, is made up of carbon block 8 and fire-resistant-insulation material 9 successively, and its carbon block bottom is built aluminium oxide Ceramic Tiles 10, sees Fig. 6.
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, it is provided with the electrit solution of two ends of negative electrode partition wall
The ledge of cell body be outside, section be the ledge of " L ".
During use, the aluminum liquid of bottom of electrolytic tank is used to carry out aluminium electroloysis as negative electrode；The aluminum liquid of its bottom of electrolytic tank is with cloudy
Pole bus contact forms the negative electrode of aluminium electroloysis.
Being provided with inside the two ends of electrit solution groove and be connected with partition wall with cell sidewall, partition wall end stretch enters aluminum liquid and electricity
Solving bottom land and form the two ends inwall shape aluminum liquid wing passage of aluminum liquid lower passage, partition wall and electrit solution groove, negative busbar is at aluminum liquid
Wing passage contacts with aluminum liquid；Its partition wall carbon block bottom block has the effect of aluminium oxide Ceramic Tiles to be to block side wall carbon block and fine aluminium the moon
Horizontal current between pole, increases the quiet performance of aluminum liquid, improves current efficiency.
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, the cathode steel bar pressure existed for traditional electrolyte groove
Fall is high, be easily formed between rod iron and carbon block on solid electrolyte insulating barrier, cathode carbon pieces and be easily formed precipitation of alumina and honeybee
Nest shape micro cell, the aluminium oxide of generation, aluminium carbide, increase electrolytic aluminium power consumption, reduce the deficiencies such as Aluminum Electrolysis Efficiency, with fine aluminium
Aluminum propulsive cathode replaces the negative electrode of rod iron-carbon block group composition；With the benefit of fine aluminium aluminum propulsive cathode replacement rod iron-carbon block negative electrode it is: fall
Hearth and bottom more than 95% during low new groove.As a example by certain type electrolysis bath, reduce aluminum-carbon contact drop 24mv(20-28mv),
Calculating as a example by furnace bottom rod iron pressure drop 186mv, carbon block pressure drop 102mv, carbon-steel contact drop 69mv, ton aluminum reduces power consumption
1234kw·h；Eliminate carbon-steel interface and form solid electrolyte insulating barrier, make electrolysis bath in whole lifetime, hearth and bottom
All the time maintain extremely low level, greatly reduce aluminium electroloysis power consumption.
A kind of fine aluminium negative electrode low energy consumption aluminium cell of the present utility model, can send out and replace rod iron-carbon block group with fine aluminium negative electrode
Negative electrode, eliminates the precipitation of alumina on the cathode carbon pieces that conventional aluminum electrolysis bath exists and cellular micro cell defect, in electrolysis
In production process, there is not aluminium oxide, aluminium carbide problem that electrolytic aluminium liquid is polluted that bearth precipitation generates.
Negative electrode power outlet mother wire is placed in the two ends inwall shape aluminum liquid wing passage of partition wall and electrit solution groove, bus duct with under
Combined as a whole by communication passage between layer aluminum liquid.Aluminum liquid in bus duct and communication passage is solid-state, when the heat of electrolysis bath is put down
When weighing apparatus changes, the aluminum liquid in communication passage 11 converts between solid-state, semisolid, liquid, and now, fine aluminium negative electrode is by overflowing
Stream and feeding guarantee between fine aluminium negative electrode → communication passage → negative electrode power outlet mother wire 7 go out electricity loop unimpeded, it is ensured that be electrolysed
Journey is carried out continuously.
Compared with conventional aluminum electrolysis bath, replace traditional carbon block-rod iron composite cathode with aluminum liquid, eliminate aluminum-carbon contact
Pressure drop, carbon block resistance drop, carbon-steel contact drop, rod iron resistance drop, as a example by certain type conventional aluminum electrolysis bath, reduce furnace bottom
Pressure drop 381mv, is equivalent to reduce ton aluminum power consumption 1234kw h, is equivalent to aluminium electroloysis industry and reduces power consumption 38,400,000,000 degree the whole year；Disappear
Except the solid electrolyte insulating barrier formed because of electrolyte permeability, making electrolysis bath in whole lifetime, hearth and bottom is tieed up all the time
Hold in extremely low level, greatly reduce aluminium electroloysis power consumption；Eliminate the aluminium oxide because bearth precipitation causes, aluminium carbide to electrolysis
The pollution of aluminum liquid, reduces electrolytic aluminium power consumption, improves Aluminum Electrolysis Efficiency, have the highest economic worth and social benefit.
Claims (3)
1. a fine aluminium negative electrode low energy consumption aluminium cell, its structure includes: prebaked anode, blanking device, powder purification apparatus；Its
It is characterised by that the structure of its cathod system includes:
Cell body, this cell body is the spill cell body being made up of fire-resistant-insulation material；It is provided with in cell body top edge
Ledge；
Negative electrode partition wall, consolidates with cell body side channel side inwall in this partition wall is the two ends ledge being respectively arranged on electrit solution cell body
Two partition walls connect, are provided with end passage bottom partition wall and between the going to the bottom of electrit solution cell body；Negative electrode partition wall and electrit solution cell body termination
Ledge inwall shape wing passage；
Negative busbar, this negative busbar is entered electrolysis bath by negative electrode partition wall with electrit solution cell body termination ledge inwall shape wing passage
Body.
A kind of fine aluminium negative electrode low energy consumption aluminium cell the most according to claim 1, it is characterised in that its negative electrode partition wall is by electricity
Solving cell body direction from inside to outside, be made up of carbon block and fire-resistant-insulation material successively, its carbon block bottom is built aluminium oxide Ceramic Tiles.
A kind of fine aluminium negative electrode low energy consumption aluminium cell the most according to claim 1, it is characterised in that be provided with negative electrode partition wall
The ledge of the electrit solution cell body of two ends be outside, section be the ledge of " L ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620363659.8U CN205616961U (en) | 2016-04-27 | 2016-04-27 | Pure aluminium cathode low energy consumption aluminium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620363659.8U CN205616961U (en) | 2016-04-27 | 2016-04-27 | Pure aluminium cathode low energy consumption aluminium cell |
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| Publication Number | Publication Date |
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| CN205616961U true CN205616961U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620363659.8U Withdrawn - After Issue CN205616961U (en) | 2016-04-27 | 2016-04-27 | Pure aluminium cathode low energy consumption aluminium cell |
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| CN (1) | CN205616961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780055A (en) * | 2016-04-27 | 2016-07-20 | 新疆大学 | Aluminum electrolysis cell with aluminum as cathode |
| CN106929688A (en) * | 2017-04-17 | 2017-07-07 | 新疆大学 | A kind of utilization aluminium lime-ash prepares the apparatus and method of rafifinal |
-
2016
- 2016-04-27 CN CN201620363659.8U patent/CN205616961U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780055A (en) * | 2016-04-27 | 2016-07-20 | 新疆大学 | Aluminum electrolysis cell with aluminum as cathode |
| CN105780055B (en) * | 2016-04-27 | 2018-04-20 | 新疆大学 | The aluminium cell of cathode is used as using aluminium |
| CN106929688A (en) * | 2017-04-17 | 2017-07-07 | 新疆大学 | A kind of utilization aluminium lime-ash prepares the apparatus and method of rafifinal |
| CN106929688B (en) * | 2017-04-17 | 2018-08-17 | 新疆大学 | A kind of apparatus and method preparing rafifinal using aluminium lime-ash |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20180420 |
|
| AV01 | Patent right actively abandoned |