CA2834290A1 - Method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank - Google Patents
Method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank Download PDFInfo
- Publication number
- CA2834290A1 CA2834290A1 CA2834290A CA2834290A CA2834290A1 CA 2834290 A1 CA2834290 A1 CA 2834290A1 CA 2834290 A CA2834290 A CA 2834290A CA 2834290 A CA2834290 A CA 2834290A CA 2834290 A1 CA2834290 A1 CA 2834290A1
- Authority
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- Prior art keywords
- cathode
- steel bar
- aluminum
- current
- electrolytic tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 55
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 238000009826 distribution Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 39
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- 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
- C25C3/16—Electric current supply devices, e.g. bus bars
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Disclosed is a method for uniforming the distribution of current in an aluminum electrolysis cell. At least one cathode steel bar is fixedly tied or casted at the lower part of a cathode carbon block,and the cathode steel bar is cutted into several sections located at different places along the length direction by a separating seam.The said sections upon the separating seams of the cathode steel bar except those between the separating seams are totally connected with the cathode carbon block by conductive bodies,and the sections between and below the separating seams of the cathode carbon steel bar are insulated from the cathode carbon block by insulators. Insulating materials for separating seam are filled in the separating seam, so that the sections upon and below the separating seams of the cathode steel bar are insulated from each other,and one end of the cathode steel bar penetrates out of the electrolytic cell from its sidepiece. The cathode current of the aluminum electrolysis cell is distributed more uniformly, and the horizontal current in the aluminum liquid is reduced, then the stability of the electrolytic cell is improved, and the aluminum electrolysis cell can be efficiently circulated with a low polar distance, thus the energy consumption for per ton of aluminum is reduced effectively, and the energy-saving effect is achieved, meanwhile the service life of the cathode is also prolonged.
Description
METHOD FOR UNIFORMING DISTRIBUTION OF CURRENT IN
ALUMINUM LIQUID IN AN ALUMINUM ELECTROLYTIC TANK
TECHNICAL FIELD
The present invention relates to an aluminum electrolytic tank for producing primary aluminum by Hall-Heroult electrolysis, more specially, to a method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank.
BACKGROUND ART
The metal aluminum is produced by molten salt electrolysis in the industry, i.e., aluminium oxide dissolved in an electrolyte with molten cryolite as the main component is electrolyzed. Currently, the mainly method is Hall-Heroult electrolysis.
The direct apparatus for producing electrolytic aluminum is an electrolytic tank, which mainly consists of two major portions, one is an anode generally made of a carbon material, and the other is a cathode formed by laying of carbon blocks and an inner liner material.
The aluminum electrolytic tank is connected in series in the entire electrolytic system, wherein the current enters the electrolytic tank from the anode, and enters the cathode carbon block through the molten electrolyte and the aluminum liquid in liquid form, wherein the current is collected by cathode steel bar(s) assembled in the cathode carbon block, and is guided into the next electrolytic tank by a cathode busbar.
The cathode structure of the existing aluminum electrolytic tank is: the bottom of the cathode carbon block is provided with cathode steel bar(s), the cathode steel bar and the carbon block are entirely connected by means of paste bundling or casting ferrophosphorus, each cathode carbon block is provided with one or two cathode steel bars, the cathode steel bar and the cathode carbon block are placed horizontally in the same direction, and one end of the cathode steel bar extends out from the side wall of the electrolytic tank and is connected with the cathode busbar. In the electrolytic tank with such a structure, the cathode conductive structure has a rather great disadvantage: since the cathode steel bar and the cathode carbon block are placed horizontally in the same direction, a rather substantial horizontal current is produced in the aluminum liquid, the horizontal current co-working with the vertical magnetic field in the aluminum liquid to produce an electromagnetic force, which drives the aluminum liquid in liquid form to flow and fluctuate in the electrolytic tank; if the horizontal current in the electrolytic tank is too large and is not in uniform distribution, the interface between the aluminum liquid and the electrolyte will fluctuate greatly, such that the electrolytic tank generates severe instability during production and the efficiency of the current is decreased. In addition, the horizontal current in the aluminum liquid is not in uniform distribution along the length direction of the cathode carbon block, such that the current at the end of the cathode carbon block has the maximum density, resulting in that corrosion at this part of the cathode carbon block is significantly expedited and the service life is the electrolytic tank is decreased.
In order to increase stability of the electrolytic tank, the common manner is to control strictly, in the design of the electrolytic tank, the distribution of the vertical magnetic field in the aluminum liquid, which not only increases difficulty in the design of a cathode busbar, but also results in that the configuration of the cathode becomes complicated, more busbars are used, and the cost is increased.
SUMMARY OF THE INVENTION
For solving the aforesaid technical problems, i.e., to uniform the distribution of the current in the aluminum liquid and to increase stability of the electrolytic tank, the present invention provides a method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank, which aims to reduce the horizontal current in the aluminum liquid, to make the current in the aluminum liquid distributed more uniformly, to greatly improve the stability of the electrolytic tank, to enable the electrolytic tank to operate efficiently and stably under a very low polar distance, to reduce the energy consumption for per ton of aluminum effectively, and meanwhile to make the density of the cathode current more uniform, to reduce the rate of cathode abrasion, and to prolong the service life of the cathode.
In order to achieve the above-mentioned purposes, the present invention is achieved by means of the following technical solutions:
A method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank, in which at least one cathode steel bar is fixedly bundled or casted at the lower part of a cathode carbon block, and the cathode steel bar is divided into several sections at different positions along the length direction by separating seams, the sections of the cathode steel bar on each separating seam are totally connected with the cathode carbon block by conductive bodies, except those sections between the separating seams, and the remaining sections of the cathode steel bar are all insulated from the cathode carbon block by insulators; the separating seams are filled with an insulating material for the separating seams, so that the both sections of the cathode steel bar above and below the separating seam are insulated from each other, and one end of the cathode steel bar penetrates out of the electrolytic tank from the side of the electrolytic tank.
The conductive body is carbon paste or ferrophosphorus.
The cathode steel bar is partially fixedly bundled or casted in the cathode carbon block.
The number of the separating seams in each cathode steel bar is 1 to 20.
The cross section of the cathode steel bar is in the shape of a square, a circle, a semi-circle, a trapezoia or a triangle.
Below each set of the cathode carbon blocks are mounted 1 to 50 cathode steel bars.
The advantages and effects of the present invention are as follows: the present invention has great practicability, i.e., when the electricity output manner of the cathode remains unchanged (electricity is output from the side), the horizontal current in the aluminum liquid is greatly reduced, the current in the aluminum liquid is distributed more uniformly, the stability of the electrolytic tank is greatly improved, the service life of the cathode is also prolonged, the electrolytic tank can operate efficiently and stably under a very low polar distance, the energy consumption for per ton of aluminum is reduced effectively, and the remarkable energy-saving effect is achieved.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a schematic structure view of the cathode structure of the present invention.
Fig. 2 is a schematic view of the combined structure of the cathode carbon block and the cathode steel bar of the present invention.
Fig. 3 is a top plan structure view of the combined structure of the cathode carbon block and the cathode steel bar of Fig. 2.
Fig. 4 is a schematic view of A-A sectional structure in Fig. 3.
Fig. 5 is a schematic structure view of the cathode steel bar partially fixedly bundled or casted in the cathode carbon block.
In the figures, reference number 1 refers to the cathode carbon block;
reference number 2 refers to the cathode steel bar; reference number 3 refers to the separating seam; reference number 4 refers to the insulating material for the separating seam; reference number 5 refers to the insulator; and reference number 6 refers to the conductive body.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Next, the present invention will be illustrated in details in conjunction with the drawings, whereas the scope of protection of the present invention is not limited by the embodiments.
As shown in the drawings, the present invention provides a method for uniforming the distribution of ;:urrent in the aluminum liquid in an aluminum electrolytic tank, in which at least one cathode steel bar 2 is fixedly bundled or casted at the lower part of a cathode carbon block 1, and the cathode steel bar 2 is divided into three upper, middle and lower sections along the length direction by two separating seams 3, the section of the cathode steel bar 2 between the two separating seams 3 is connected with the carbon block 1 by an insulator 5, the section of the cathode steel bar 2 below the lower separating seam 3 is connected with the cathode carbon block 1 by an insulator 5, and the remaining sections of the cathode steel bar 2 are totally connected with the cathode carbon block 1 by conductive bodies 6; the separating seam 3 is filled with an insulating material 4 for the separating seam, so that the sections of the cathode steel bar 2 above and below the separating seam 3 are insulated from each other, and one end of the cathode steel bar 2 penetrates out of the electrolytic tank from the side of the electrolytic tank; the conductive body 6 is carbon paste or ferrophosphorus, the cathode steel bar is wholly or partially fixedly bundled or casted in the cathode carbon block 1, the cross section of the cathode steel bar 2 is in the shape of a square, a circle, a semi-circle, a trapezoid or a triangle, and below each set of the cathode carbon blocks 1 may be mounted 1 to 50 cathode steel bars.
The number of the separating seams 3 in each above-mentioned cathode steel bar 2 is 1 to 20.
In the present invention, when the electricity output manner of the cathode remains unchanged, by changing the structure of the cathode steel bar, the manner for connecting the cathode steel bar with the cathode carbon block, etc., the combined resistance of the cathode carbon block and the cathode steel bar is regulated, thereby the current in the aluminum liquid is distributed more uniformly, the horizontal current in the aluminum liquid is greatly reduced, the stability of the electrolytic tank is greatly improved, the electrolytic tank can operate efficiently and stably under a very low polar distance, the energy consumption for per ton of aluminum is reduced effectively, and the remarkable =
energy-saving effect is achieved. The purposes of uniforming the distribution of current in the aluminum liquid reducing the horizontal current and improving the stability of the electrolytic tank are achieved.
The embodiments herein only list a method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank by using two separating seams, and the detailed embodiments in the present patent describe the measures for implementing the method only directing to the drawings, whereas the scope of protection of the present patent is not limited by the embodiments in the present patent.
ALUMINUM LIQUID IN AN ALUMINUM ELECTROLYTIC TANK
TECHNICAL FIELD
The present invention relates to an aluminum electrolytic tank for producing primary aluminum by Hall-Heroult electrolysis, more specially, to a method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank.
BACKGROUND ART
The metal aluminum is produced by molten salt electrolysis in the industry, i.e., aluminium oxide dissolved in an electrolyte with molten cryolite as the main component is electrolyzed. Currently, the mainly method is Hall-Heroult electrolysis.
The direct apparatus for producing electrolytic aluminum is an electrolytic tank, which mainly consists of two major portions, one is an anode generally made of a carbon material, and the other is a cathode formed by laying of carbon blocks and an inner liner material.
The aluminum electrolytic tank is connected in series in the entire electrolytic system, wherein the current enters the electrolytic tank from the anode, and enters the cathode carbon block through the molten electrolyte and the aluminum liquid in liquid form, wherein the current is collected by cathode steel bar(s) assembled in the cathode carbon block, and is guided into the next electrolytic tank by a cathode busbar.
The cathode structure of the existing aluminum electrolytic tank is: the bottom of the cathode carbon block is provided with cathode steel bar(s), the cathode steel bar and the carbon block are entirely connected by means of paste bundling or casting ferrophosphorus, each cathode carbon block is provided with one or two cathode steel bars, the cathode steel bar and the cathode carbon block are placed horizontally in the same direction, and one end of the cathode steel bar extends out from the side wall of the electrolytic tank and is connected with the cathode busbar. In the electrolytic tank with such a structure, the cathode conductive structure has a rather great disadvantage: since the cathode steel bar and the cathode carbon block are placed horizontally in the same direction, a rather substantial horizontal current is produced in the aluminum liquid, the horizontal current co-working with the vertical magnetic field in the aluminum liquid to produce an electromagnetic force, which drives the aluminum liquid in liquid form to flow and fluctuate in the electrolytic tank; if the horizontal current in the electrolytic tank is too large and is not in uniform distribution, the interface between the aluminum liquid and the electrolyte will fluctuate greatly, such that the electrolytic tank generates severe instability during production and the efficiency of the current is decreased. In addition, the horizontal current in the aluminum liquid is not in uniform distribution along the length direction of the cathode carbon block, such that the current at the end of the cathode carbon block has the maximum density, resulting in that corrosion at this part of the cathode carbon block is significantly expedited and the service life is the electrolytic tank is decreased.
In order to increase stability of the electrolytic tank, the common manner is to control strictly, in the design of the electrolytic tank, the distribution of the vertical magnetic field in the aluminum liquid, which not only increases difficulty in the design of a cathode busbar, but also results in that the configuration of the cathode becomes complicated, more busbars are used, and the cost is increased.
SUMMARY OF THE INVENTION
For solving the aforesaid technical problems, i.e., to uniform the distribution of the current in the aluminum liquid and to increase stability of the electrolytic tank, the present invention provides a method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank, which aims to reduce the horizontal current in the aluminum liquid, to make the current in the aluminum liquid distributed more uniformly, to greatly improve the stability of the electrolytic tank, to enable the electrolytic tank to operate efficiently and stably under a very low polar distance, to reduce the energy consumption for per ton of aluminum effectively, and meanwhile to make the density of the cathode current more uniform, to reduce the rate of cathode abrasion, and to prolong the service life of the cathode.
In order to achieve the above-mentioned purposes, the present invention is achieved by means of the following technical solutions:
A method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank, in which at least one cathode steel bar is fixedly bundled or casted at the lower part of a cathode carbon block, and the cathode steel bar is divided into several sections at different positions along the length direction by separating seams, the sections of the cathode steel bar on each separating seam are totally connected with the cathode carbon block by conductive bodies, except those sections between the separating seams, and the remaining sections of the cathode steel bar are all insulated from the cathode carbon block by insulators; the separating seams are filled with an insulating material for the separating seams, so that the both sections of the cathode steel bar above and below the separating seam are insulated from each other, and one end of the cathode steel bar penetrates out of the electrolytic tank from the side of the electrolytic tank.
The conductive body is carbon paste or ferrophosphorus.
The cathode steel bar is partially fixedly bundled or casted in the cathode carbon block.
The number of the separating seams in each cathode steel bar is 1 to 20.
The cross section of the cathode steel bar is in the shape of a square, a circle, a semi-circle, a trapezoia or a triangle.
Below each set of the cathode carbon blocks are mounted 1 to 50 cathode steel bars.
The advantages and effects of the present invention are as follows: the present invention has great practicability, i.e., when the electricity output manner of the cathode remains unchanged (electricity is output from the side), the horizontal current in the aluminum liquid is greatly reduced, the current in the aluminum liquid is distributed more uniformly, the stability of the electrolytic tank is greatly improved, the service life of the cathode is also prolonged, the electrolytic tank can operate efficiently and stably under a very low polar distance, the energy consumption for per ton of aluminum is reduced effectively, and the remarkable energy-saving effect is achieved.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a schematic structure view of the cathode structure of the present invention.
Fig. 2 is a schematic view of the combined structure of the cathode carbon block and the cathode steel bar of the present invention.
Fig. 3 is a top plan structure view of the combined structure of the cathode carbon block and the cathode steel bar of Fig. 2.
Fig. 4 is a schematic view of A-A sectional structure in Fig. 3.
Fig. 5 is a schematic structure view of the cathode steel bar partially fixedly bundled or casted in the cathode carbon block.
In the figures, reference number 1 refers to the cathode carbon block;
reference number 2 refers to the cathode steel bar; reference number 3 refers to the separating seam; reference number 4 refers to the insulating material for the separating seam; reference number 5 refers to the insulator; and reference number 6 refers to the conductive body.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Next, the present invention will be illustrated in details in conjunction with the drawings, whereas the scope of protection of the present invention is not limited by the embodiments.
As shown in the drawings, the present invention provides a method for uniforming the distribution of ;:urrent in the aluminum liquid in an aluminum electrolytic tank, in which at least one cathode steel bar 2 is fixedly bundled or casted at the lower part of a cathode carbon block 1, and the cathode steel bar 2 is divided into three upper, middle and lower sections along the length direction by two separating seams 3, the section of the cathode steel bar 2 between the two separating seams 3 is connected with the carbon block 1 by an insulator 5, the section of the cathode steel bar 2 below the lower separating seam 3 is connected with the cathode carbon block 1 by an insulator 5, and the remaining sections of the cathode steel bar 2 are totally connected with the cathode carbon block 1 by conductive bodies 6; the separating seam 3 is filled with an insulating material 4 for the separating seam, so that the sections of the cathode steel bar 2 above and below the separating seam 3 are insulated from each other, and one end of the cathode steel bar 2 penetrates out of the electrolytic tank from the side of the electrolytic tank; the conductive body 6 is carbon paste or ferrophosphorus, the cathode steel bar is wholly or partially fixedly bundled or casted in the cathode carbon block 1, the cross section of the cathode steel bar 2 is in the shape of a square, a circle, a semi-circle, a trapezoid or a triangle, and below each set of the cathode carbon blocks 1 may be mounted 1 to 50 cathode steel bars.
The number of the separating seams 3 in each above-mentioned cathode steel bar 2 is 1 to 20.
In the present invention, when the electricity output manner of the cathode remains unchanged, by changing the structure of the cathode steel bar, the manner for connecting the cathode steel bar with the cathode carbon block, etc., the combined resistance of the cathode carbon block and the cathode steel bar is regulated, thereby the current in the aluminum liquid is distributed more uniformly, the horizontal current in the aluminum liquid is greatly reduced, the stability of the electrolytic tank is greatly improved, the electrolytic tank can operate efficiently and stably under a very low polar distance, the energy consumption for per ton of aluminum is reduced effectively, and the remarkable =
energy-saving effect is achieved. The purposes of uniforming the distribution of current in the aluminum liquid reducing the horizontal current and improving the stability of the electrolytic tank are achieved.
The embodiments herein only list a method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank by using two separating seams, and the detailed embodiments in the present patent describe the measures for implementing the method only directing to the drawings, whereas the scope of protection of the present patent is not limited by the embodiments in the present patent.
Claims (6)
1. A method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank, characterized in that: fixedly bundling or casting at least one cathode steel bar at the lower part of a cathode carbon block, wherein the cathode steel bar is divided into several sections at different positions along the length direction by separating seams, the sections of the cathode steel bar on each separating seam are totally connected with the cathode carbon block by conductive bodies, except those sections between the separating seams, and the remaining sections of the cathode steel bar are all insulated from the cathode carbon block by insulators; the separating seam is filled with an insulating material for the separating seam, so that the sections of the cathode steel bar above and below the separating seam are insulated from each other, and one end of the cathode steel bar penetrates out of the electrolytic tank from the side of the electrolytic tank.
2. The method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank according to claim 1, characterized in that the conductive body is carbon paste or ferrophosphorus
3. The method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank according to claim 1, characterized in that the cathode steel bar is partially fixedly bundled or casted in the cathode carbon block.
4. The method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank according to claim 1 or 3, characterized in that the number of the separating seams in each cathode steel bar is 1 to 20.
5. The method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank according to claim 1, characterized in that the cross section of the cathode steel bar is in the shape of a square, a circle, a semi-circle, a trapezoid or a triangle.
6. The method for uniforming the distribution of current in the aluminum liquid in an aluminum electrolytic tank according to claim 1, characterized in that below each set of the cathode carbon blocks are mounted 1 to 50 cathode steel bars
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110109943.4A CN102758216B (en) | 2011-04-29 | 2011-04-29 | Method for homogenizing current distribution in aluminum liquid in aluminum electrolytic cell |
| CN201110109943.4 | 2011-04-29 | ||
| PCT/CN2012/000564 WO2012146063A1 (en) | 2011-04-29 | 2012-04-26 | Method for uniforming distribution of current in aluminium electrolysis cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2834290A1 true CA2834290A1 (en) | 2012-11-01 |
| CA2834290C CA2834290C (en) | 2016-06-28 |
Family
ID=47052857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2834290A Active CA2834290C (en) | 2011-04-29 | 2012-04-26 | Method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102758216B (en) |
| CA (1) | CA2834290C (en) |
| NO (1) | NO347721B1 (en) |
| WO (1) | WO2012146063A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014765B (en) * | 2011-09-24 | 2016-07-06 | 沈阳铝镁设计研究院有限公司 | Cathode structure for reducing horizontal current in aluminum liquid |
| CN104250831A (en) * | 2013-06-28 | 2014-12-31 | 沈阳铝镁设计研究院有限公司 | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium |
| CN108396334B (en) * | 2018-06-07 | 2020-05-26 | 东北大学 | Aluminum electrolysis cell cathode structure for reducing horizontal current of aluminum liquid |
| CN109763145A (en) * | 2019-03-07 | 2019-05-17 | 合肥工业大学 | The cathode construction of horizontal current in a kind of reduction aluminium cell |
| CN110029360B (en) * | 2019-05-05 | 2020-10-16 | 中南大学 | Wall type aluminium electrolysis cathode |
| CN111809202B (en) * | 2020-07-22 | 2021-11-23 | 合肥工业大学 | Cathode steel bar structure for reducing horizontal current of aluminum liquid in aluminum electrolytic cell |
| CN113445079B (en) * | 2021-06-17 | 2023-09-22 | 合肥工业大学 | Cathode steel bar structure capable of reducing horizontal current of aluminum liquid for aluminum electrolysis cell |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH544812A (en) * | 1970-09-01 | 1973-11-30 | Alusuisse | Cell for the production of aluminum by electrolysis of aluminum oxide in a melt flow |
| EP0197003A1 (en) * | 1985-03-22 | 1986-10-08 | Schweizerische Aluminium Ag | Electrolysis vat for the production of aluminium |
| AU2003271461A1 (en) * | 2002-10-02 | 2004-04-23 | Alcan International Limited | Collector bar providing discontinuous electrical connection to cathode block |
| FR2868435B1 (en) * | 2004-04-02 | 2006-05-26 | Aluminium Pechiney Soc Par Act | CATHODIC ELEMENT FOR THE EQUIPMENT OF AN ELECTROLYSIS CELL INTENDED FOR THE PRODUCTION OF ALUMINUM |
| CN100593042C (en) * | 2006-03-17 | 2010-03-03 | 贵阳铝镁设计研究院 | Method and structure for improving cathode current density of aluminium-electrolytic cell |
| CN201031257Y (en) * | 2007-04-20 | 2008-03-05 | 东北大学设计研究院（有限公司） | Novel structure cathode of aluminum cell |
| CN101440505B (en) * | 2008-12-11 | 2010-11-24 | 中国铝业股份有限公司 | Cathode carbon block and cathode structure of impervious barrier conductive steel rod |
| CN101660176A (en) * | 2008-12-18 | 2010-03-03 | 高德金 | Inner lining structure of cathode molten pool for aluminum electrolytic cell |
| CN201864785U (en) * | 2010-10-19 | 2011-06-15 | 沈阳铝镁设计研究院有限公司 | Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell |
| CN102453927B (en) * | 2010-10-19 | 2013-08-14 | 沈阳铝镁设计研究院有限公司 | Method for greatly reducing horizontal current in aluminum liquid of aluminum electrolytic cell |
-
2011
- 2011-04-29 CN CN201110109943.4A patent/CN102758216B/en active Active
-
2012
- 2012-04-26 CA CA2834290A patent/CA2834290C/en active Active
- 2012-04-26 WO PCT/CN2012/000564 patent/WO2012146063A1/en active Application Filing
-
2013
- 2013-11-29 NO NO20131582A patent/NO347721B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2834290C (en) | 2016-06-28 |
| CN102758216A (en) | 2012-10-31 |
| NO20131582A1 (en) | 2014-01-21 |
| WO2012146063A1 (en) | 2012-11-01 |
| CN102758216B (en) | 2015-04-15 |
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