CN102758216B - Method for homogenizing current distribution in aluminum liquid in aluminum electrolytic cell - Google Patents
Method for homogenizing current distribution in aluminum liquid in aluminum electrolytic cell Download PDFInfo
- Publication number
- CN102758216B CN102758216B CN201110109943.4A CN201110109943A CN102758216B CN 102758216 B CN102758216 B CN 102758216B CN 201110109943 A CN201110109943 A CN 201110109943A CN 102758216 B CN102758216 B CN 102758216B
- Authority
- CN
- China
- Prior art keywords
- cathode
- steel bar
- aluminum
- cathode steel
- current
- 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.)
- Active
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 57
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 title abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000004020 conductor Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 31
- 238000000638 solvent extraction Methods 0.000 claims description 22
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract 6
- 239000012212 insulator Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 22
- 239000003610 charcoal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011449 brick Substances 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
- 238000004090 dissolution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- -1 sodium aluminum fluoride Chemical compound 0.000 description 1
- 230000003442 weekly effect Effects 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
Abstract
The invention discloses a cathode structure of an aluminum electrolytic cell, in particular to a method for homogenizing current distribution in aluminum liquid in the aluminum electrolytic cell. At least one cathode steel bar is bound or cast at the lower part of a cathode carbon block, and the cathode steel bar is segmented into a plurality of parts in different positions by partition joints in the length direction; cathode steel bars among the partition joints are completely connected with the cathode carbon block through electric conductors, and the rest of the cathode steel bars on the partition joints are completely insulated with the cathode carbon block through insulators; partition joint insulating material is filled in each partition joint, so that the cathode steel bars on and below the partition joints are insulated; and one end of the cathode steel bar penetrates out of the side part of the electrolytic cell. According to the method disclosed by the invention, the current distribution in the aluminum liquid in the aluminum electrolytic cell is homogenized, horizontal current in the aluminum liquid is greatly reduced, the stability of the electrolytic cell is improved, the electrolytic cell can operate with high efficiency at low polar distance, the aluminum energy consumption per ton can be effectively reduced, the energy-saving effect is significant and the service life of a cathode is simultaneously prolonged.
Description
Technical field
The present invention relates to the aluminium cell that Hall-Ai Lu electrolytic process produces primary aluminum, specifically, the present invention relates to the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor.
Background technology
Metallic aluminium industrially adopts fused salt electrolysis process to produce, and namely electrolytic dissolution is the aluminum oxide in the ionogen of main component at the sodium aluminum fluoride of melting, and the main method adopted is Hall-Ai Lu (Hall-Heroult) electrolytic process at present.
The direct equipment producing electrolytic aluminum is electrolyzer, and electrolyzer mainly contains two parts's composition, and a part is anode, is usually made up of carbon materials, and another part is negative electrode, is built by laying bricks or stones form by charcoal block and inner lining material.
Aluminium cell is connected in whole electrolytic series, and electric current enters electrolyzer from anode, by the ionogen of melting, through liquid aluminium liquid, enter cathode carbon pieces, electric current is collected by the cathode steel bar be assemblied in cathode carbon pieces, imports next electrolyzer by negative busbar.
Existing cathode structure of aluminium cell is: in the bottom of cathode carbon pieces, cathode steel bar is housed, all adopt between cathode steel bar with charcoal block and prick the mode of sticking with paste or watering ferrophosphorus and be connected, each cathode carbon pieces is equipped with one or two cathode steel bars, cathode steel bar and cathode carbon pieces horizontal positioned in the same way, the sidewall that electrolyzer is stretched out in one end of cathode steel bar is connected with negative busbar.The electrolyzer of this structure, there is a very large shortcoming in cathode conductive structure: due to cathode steel bar and cathode carbon pieces horizontal positioned in the same way, cause producing very large horizontal current in aluminium liquid, in this horizontal current and aluminium liquid, vertical magnetic field acting in conjunction produces electromagnetic force, this electromagnetic force drives liquid aluminium liquid flow in a cell and fluctuate, if the excessive and skewness of the horizontal current in electrolyzer, aluminium liquid and electrolyte interface will be caused to fluctuate excessive, make electrolyzer produce serious unstable aborning, reduce current efficiency.In addition, in aluminium liquid, horizontal current distribution is along the length direction skewness of cathode carbon pieces, makes the end current density of cathode carbon pieces maximum, thus significantly accelerates the corrosion of cathode carbon pieces herein, reduces the life-span of electrolyzer.
In order to improve the stability of electrolyzer, common way is the strict perpendicular field profile controlled in aluminium liquid in the design of electrolyzer, this not only adds the difficulty of negative busbar design, and causes cathode arrangement complicated, and bus consumption is large, and investment increases.
Summary of the invention
The present invention is in order to solve the problems of the technologies described above, distribution of current in homogenizing aluminium liquid, improve the stability of electrolyzer, propose the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor, its objective is the horizontal current reduced in aluminium liquid, make distribution of current in aluminium liquid more even, thus significantly improve the stability of electrolyzer, enable electrolyzer efficiently and smoothly operated under lower pole span, remarkable reduction ton aluminium energy consumption, cathode current density is more even simultaneously, reduces the speed of cathode abrasion, extends cathode life.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of method of distribution of current in homogenizing aluminum cell aluminum liquor, solid or at least one cathode steel bar of casting is pricked in cathode carbon pieces bottom, cathode steel bar is divided into a few part by partitioning slot at different positions along its length, part between cathode steel bar divide seam on every bar partitioning slot all adopts electrical conductor to be connected with cathode carbon pieces, the cathode steel bar of rest part all adopts isolator and cathode carbon pieces to insulate, partitioning slot filling insulating material is adopted in partitioning slot, make the upper and lower two portions cathode steel bar insulation of partitioning slot, one end of cathode steel bar passes from the sidepiece of electrolyzer.
Described electrical conductor is carbon paste or ferrophosphorus.
Described cathode steel bar part is pricked solid or is cast in cathode carbon pieces.
The quantity of the partitioning slot in described every root cathode steel bar is 1 ~ 20.
The cross-sectional shape of described cathode steel bar is square, circular, semicircle, trapezoidal or trilateral.
1-50 root cathode steel bar is installed in described often group cathode carbon pieces bottom.
Advantage of the present invention and effect as follows: the present invention has very strong practicality, go out under electric mode and sidepiece go out the condition of electricity not changing negative electrode, significantly reduce the horizontal current in aluminium liquid, distribution of current in homogenizing aluminium liquid, increased substantially the stability of electrolyzer, extended cathode life, electrolyzer can be efficiently and smoothly operated under low pole span condition, effectively reduce a ton aluminium energy consumption, there is significant energy-saving effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of cathode construction of the present invention.
Fig. 2 is cathode carbon pieces of the present invention and cathode steel bar unitized construction schematic diagram.
Fig. 3 is the plan structure figure of Fig. 2 cathode carbon pieces and cathode steel bar unitized construction.
Fig. 4 is the A-A sectional structure schematic diagram of Fig. 3.
Fig. 5 is that cathode carbon pieces part pricks structural representation that is solid or that cast in cathode carbon pieces
In figure, 1, cathode carbon pieces; 2, cathode steel bar; 3, partitioning slot; 4, partitioning slot insulating material; 5, isolator; 6, electrical conductor.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, but protection scope of the present invention not limit by embodiment.
As shown in the figure, the method of distribution of current in a kind of homogenizing aluminum cell aluminum liquor of the present invention, solid or at least one cathode steel bar 2 of casting is pricked in cathode carbon pieces 1 bottom, cathode steel bar 2 is divided into upper and lower three parts by two partitioning slot 3 along its length, article two, between partitioning slot 3, the cathode steel bar 2 of part is connected with adopting isolator 5 between charcoal block 1, the cathode steel bar 2 of the lower part of a partitioning slot 3 adopts isolator 5 to be connected with cathode carbon pieces 1 below, the cathode steel bar 2 of rest part all adopts electrical conductor 6 to be connected with between cathode carbon pieces 1, partitioning slot insulating material 4 is adopted to fill in partitioning slot 3, the cathode steel bar 2 of partitioning slot 3 top and the bottom is insulated, one end of cathode steel bar 2 passes from the sidepiece of electrolyzer, electrical conductor 6 is carbon paste or ferrophosphorus, and all or part of bundle of cathode steel bar 2 is solid or cast in cathode carbon pieces 1, and the cross-sectional shape of cathode steel bar 2 is square, circular, semicircle, trapezoidal or trilateral, often organizes cathode carbon pieces 1 bottom and can install 1-50 root cathode steel bar.
The quantity of the partitioning slot 3 in above-mentioned every root cathode steel bar 2 can be 1 ~ 20.
The present invention is not under changing negative electrode and going out the condition of electric mode, by changing the mode of connection etc. of the structure of cathode steel bar, cathode steel bar and cathode carbon pieces, regulate the combined resistance of cathode carbon pieces and cathode steel bar, distribution of current in homogenizing aluminium liquid, significantly reduce the horizontal current in aluminium liquid, improve the stability of electrolyzer, electrolyzer efficient stable under low pole span condition is produced, effectively reduce a ton aluminium energy consumption, energy-saving effect is obvious.The object reaching the distribution of current in homogenizing aluminium liquid, reduce horizontal current, improve electrolyzer stability.
The present embodiment only lists the method for distribution of current in a kind of employing two partitioning slot homogenizing aluminum cell aluminum liquors; also only for accompanying drawing in the embodiment of this patent; the practice weekly notes of present method is described, but this patent protection domain not limit by embodiment in this patent.
Claims (6)
1. the method for distribution of current in a homogenizing aluminum cell aluminum liquor, it is characterized in that structure is as follows: prick solid or at least one cathode steel bar of casting in cathode carbon pieces bottom, cathode steel bar is divided into upper and lower three parts by two partitioning slot along its length, part between cathode steel bar divide seam on every bar partitioning slot all adopts electrical conductor to be connected with cathode carbon pieces, the cathode steel bar of rest part all adopts isolator and cathode carbon pieces to insulate, partitioning slot filling insulating material is adopted in partitioning slot, make the upper and lower two portions cathode steel bar insulation of partitioning slot, one end of cathode steel bar passes from the sidepiece of electrolyzer.
2. the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor according to claim 1, is characterized in that described electrical conductor is carbon paste or ferrophosphorus.
3. the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor according to claim 1, is characterized in that described cathode steel bar part is pricked solid or casts in cathode carbon pieces.
4. the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor according to claim 1 or 3, is characterized in that the quantity of the partitioning slot in described every root cathode steel bar is 1 ~ 20.
5. the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor according to claim 1, is characterized in that the cross-sectional shape of described cathode steel bar is square, circular, semicircle, trapezoidal or trilateral.
6. the method for distribution of current in a kind of homogenizing aluminum cell aluminum liquor according to claim 1, is characterized in that 1-50 root cathode steel bar is installed in described often group cathode carbon pieces bottom.
Priority Applications (4)
| 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 |
| PCT/CN2012/000564 WO2012146063A1 (en) | 2011-04-29 | 2012-04-26 | Method for uniforming distribution of current in aluminium electrolysis cell |
| CA2834290A CA2834290C (en) | 2011-04-29 | 2012-04-26 | Method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank |
| NO20131582A NO347721B1 (en) | 2011-04-29 | 2013-11-29 | Method for rectifying the distribution of current in an aluminum liquid in an aluminum electrolysis tank |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102758216A CN102758216A (en) | 2012-10-31 |
| CN102758216B true CN102758216B (en) | 2015-04-15 |
Family
ID=47052857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110109943.4A Active CN102758216B (en) | 2011-04-29 | 2011-04-29 | Method for homogenizing current distribution in aluminum liquid in aluminum electrolytic cell |
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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3728243A (en) * | 1970-09-01 | 1973-04-17 | Alusuisse | Electrolytic cell for the production of aluminum |
| WO2004031452A1 (en) * | 2002-10-02 | 2004-04-15 | Alcan International Limited | Collector bar providing discontinuous electrical connection to cathode block |
| CN1844467A (en) * | 2006-03-17 | 2006-10-11 | 贵阳铝镁设计研究院 | Method and structure for improving cathode current density of aluminium-electrolytic cell |
| CN101660176A (en) * | 2008-12-18 | 2010-03-03 | 高德金 | Inner lining structure of cathode molten pool for aluminum electrolytic cell |
| CN102453927A (en) * | 2010-10-19 | 2012-05-16 | 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197003A1 (en) * | 1985-03-22 | 1986-10-08 | Schweizerische Aluminium Ag | Electrolysis vat for the production of aluminium |
| 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 |
| 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 |
| 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 |
-
2011
- 2011-04-29 CN CN201110109943.4A patent/CN102758216B/en active Active
-
2012
- 2012-04-26 WO PCT/CN2012/000564 patent/WO2012146063A1/en active Application Filing
- 2012-04-26 CA CA2834290A patent/CA2834290C/en active Active
-
2013
- 2013-11-29 NO NO20131582A patent/NO347721B1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3728243A (en) * | 1970-09-01 | 1973-04-17 | Alusuisse | Electrolytic cell for the production of aluminum |
| WO2004031452A1 (en) * | 2002-10-02 | 2004-04-15 | Alcan International Limited | Collector bar providing discontinuous electrical connection to cathode block |
| CN1844467A (en) * | 2006-03-17 | 2006-10-11 | 贵阳铝镁设计研究院 | Method and structure for improving cathode current density of aluminium-electrolytic cell |
| CN101660176A (en) * | 2008-12-18 | 2010-03-03 | 高德金 | Inner lining structure of cathode molten pool for aluminum electrolytic cell |
| CN102453927A (en) * | 2010-10-19 | 2012-05-16 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| NO347721B1 (en) | 2024-03-11 |
| CA2834290C (en) | 2016-06-28 |
| CA2834290A1 (en) | 2012-11-01 |
| NO20131582A1 (en) | 2014-01-21 |
| CN102758216A (en) | 2012-10-31 |
| WO2012146063A1 (en) | 2012-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102453927B (en) | Method for greatly reducing horizontal current in aluminum liquid of aluminum electrolytic cell | |
| CN102758216B (en) | Method for homogenizing current distribution in aluminum liquid in aluminum electrolytic cell | |
| CN201864785U (en) | Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell | |
| CN201367472Y (en) | Cathode structure of aluminium electrolysis bath of bath bottom tapping | |
| CN104250831A (en) | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium | |
| CN103014765B (en) | Cathode structure for reducing horizontal current in aluminum liquid | |
| CN101775621B (en) | Cathode structure of aluminium cell | |
| CN101545118B (en) | Method for reducing horizontal current in aluminum liquid of aluminum electrolysis cell | |
| CN201367468Y (en) | Cathode structure of horizontal discharging aluminium electrolysis bath | |
| CN201141044Y (en) | Structure for eliminating horizontal current in aluminum liquid in aluminum cell | |
| CN201367467Y (en) | Energy-saving consumption-reducing electrolysis bath | |
| CN101451249A (en) | Method for eliminating horizontal current in aluminum cell aluminum liquor | |
| CN201416035Y (en) | Cathode structure of energy-saving aluminum electrolyzer | |
| CN201390784Y (en) | Cathode structure of aluminum electrolytic tank | |
| CN101775622B (en) | Cathode structure of energy-saving aluminium cell | |
| CN201224768Y (en) | Middle convergent flow type aluminum cell cathode device | |
| CN201367471Y (en) | Cathode carbon block structure | |
| CN109763145A (en) | The cathode construction of horizontal current in a kind of reduction aluminium cell | |
| CN203333778U (en) | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium | |
| CN201722432U (en) | Bottom cathode diversion-type rare-earth electrolytic bath | |
| CN104250830A (en) | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium | |
| CN203333779U (en) | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium | |
| CN101781773A (en) | Horizontal electricity-outlet aluminium electrolytic bath cathode structure | |
| CN101781772A (en) | Slot base aluminium electrolysis cell cathode structure | |
| CN201442982U (en) | Aluminum-cell complex cathode carbon block structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |