CA2786463C - Cathode boss structure for aluminum electrolytic cell - Google Patents
Cathode boss structure for aluminum electrolytic cell Download PDFInfo
- Publication number
- CA2786463C CA2786463C CA2786463A CA2786463A CA2786463C CA 2786463 C CA2786463 C CA 2786463C CA 2786463 A CA2786463 A CA 2786463A CA 2786463 A CA2786463 A CA 2786463A CA 2786463 C CA2786463 C CA 2786463C
- Authority
- CA
- Canada
- Prior art keywords
- cathode
- boss
- electrolytic cell
- cathode boss
- aluminum
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 48
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- 239000003792 electrolyte Substances 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 10
- 239000012530 fluid Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process 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
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
-
- 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
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)
Abstract
A cathode boss structure for an aluminum electrolytic cell is disclosed. The cathode boss (2) is arranged on the top surface of the cathode carbon block (1) or on the top of the gap (3) between two cathode carbon blocks (1). The distance between cathode bosses is 400mm-900 mm. The length of the throughout elongate cathode boss is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste around lateral portion. The length of the embedded and butted cathode boss is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks (4) respectively, and the binding carbon blocks are embedded into the paste (5) around lateral portion. The cross-section of the cathode boss structure is in the shape of rectangle or isosceles trapezoid. The cathode boss structure is applicable to all types of current electrolytic cells. The strip boss is implanted into the top surface of the cathode of the electrolytic cell conveniently and quickly when the lateral portion of the common electrolytic cell is rammed, thereby forming a "choking effect", reducing the flow rate of the aluminum liquid layer, decreasing energy dissipation from the aluminum liquid layer, therefore improving the production stability of the electrolytic cell and reducing energy consumption.
Description
Cathode Boss Structure for Aluminum Electrolytic Cell Field of the Invention The present invention relates to a cell lining cathode boss structure applicable for an aluminum electrolytic cell, pertaining to the technical field of aluminum electrolyzing.
Background of the Invention In recent ten years, aluminum electrolyzing technologies focused on aluminum electrolytic cell have been fully developed, and seriation of capacity of the electrolytic cell (grades 200 KA, 300 KA, 400KA, etc.) and large-scale of electrolytic serial (from 100000 tons to 250000 tons) are essentially realized. However, aluminum electrolyzing is a typical high energy-loaded industry, with the integrated power consumption per ton aluminum generally being more than 14000kwhit-Al. Given 15 million tons of primary aluminum production in 2008 in China, the annual total energy consumption of aluminum electrolyzing industry should be more than 210 billion kWh. The energy utilization efficiency of aluminum electrolyzing production is 45% to 48%, thereby existing much space for energy-saving.
At present, both domestic and international large pre-baked anode electrolytic cell linings utilize the longitudinal arrangement configuration of cathodes of the same specifications, all of top surfaces of the cathodes being at the same horizontal plane. During the normal production, due to the action of electromagnetic force, the layer of liquid aluminum in the electrolytic cell is always at a flowing state, the flow field thereof as shown in Fig.5. The flowing of the electrolyte liquid, especially the irregular flowing, is one of the main unstable factors of the electrolytic cell, for the following reasons: (1) the electrolyte system is unstable, thereby reducing the efficiency of the electrochemical reaction; (2) the noise of electrolytic cell increases, so that the control system will increase the cell voltage to reduce noise. The above two points both cause the power consumption per -ton aluminum to increase. With the development of large scale of the capacity, the furnace and current of the electrolytic cell is larger and larger, resulting in more serious flow field problems as follows: the probability of uneven distribution of electrolytic liquid temperature and various materials in the cell increases; the flow rate of the electrolytic liquid increases; the production of aluminum in the cell increases; the possibility that turbulence of molten fluid occurs in some locations of the cell increases.
The aluminum liquid in the cell is a heat dissipation medium of the electrolytic cell, so increasing or reducing the amount of aluminum production is one of the main means for adjusting the thermal balance of the aluminum electrolytic cell.
Summary of the Invention According to one aspect of the present invention, there is provided a cathode boss structure for an aluminum electrolytic cell which includes cathode carbon blocks, wherein, a cathode boss is arranged on the top surface of the cathode carbon blocks or on the top of the gap between two cathode carbon blocks, the cathode boss utilizes a throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste around lateral portion; or the cathode boss utilizes an embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks respectively, and the binding carbon blocks are embedded into the paste around lateral portion.
The technical problem to be solved in some embodiments by the present invention is to provide a cathode boss structure for an aluminum electrolytic cell, so that cathode boss can be implanted into the top surface of the cathode of the electrolytic cell conveniently and quickly when the lateral portion of the common electrolytic cell is rammed, without revising the present cathode and lining. Implanting the cathode boss can efficiently form a "choking effect", reducing the flow rate of the aluminum liquid layer, decreasing energy dissipation from the aluminum liquid layer, therefore improving the production stability of electrolytic cell and reducing energy consumption, so as to overcome the defects present in the prior art.
Background of the Invention In recent ten years, aluminum electrolyzing technologies focused on aluminum electrolytic cell have been fully developed, and seriation of capacity of the electrolytic cell (grades 200 KA, 300 KA, 400KA, etc.) and large-scale of electrolytic serial (from 100000 tons to 250000 tons) are essentially realized. However, aluminum electrolyzing is a typical high energy-loaded industry, with the integrated power consumption per ton aluminum generally being more than 14000kwhit-Al. Given 15 million tons of primary aluminum production in 2008 in China, the annual total energy consumption of aluminum electrolyzing industry should be more than 210 billion kWh. The energy utilization efficiency of aluminum electrolyzing production is 45% to 48%, thereby existing much space for energy-saving.
At present, both domestic and international large pre-baked anode electrolytic cell linings utilize the longitudinal arrangement configuration of cathodes of the same specifications, all of top surfaces of the cathodes being at the same horizontal plane. During the normal production, due to the action of electromagnetic force, the layer of liquid aluminum in the electrolytic cell is always at a flowing state, the flow field thereof as shown in Fig.5. The flowing of the electrolyte liquid, especially the irregular flowing, is one of the main unstable factors of the electrolytic cell, for the following reasons: (1) the electrolyte system is unstable, thereby reducing the efficiency of the electrochemical reaction; (2) the noise of electrolytic cell increases, so that the control system will increase the cell voltage to reduce noise. The above two points both cause the power consumption per -ton aluminum to increase. With the development of large scale of the capacity, the furnace and current of the electrolytic cell is larger and larger, resulting in more serious flow field problems as follows: the probability of uneven distribution of electrolytic liquid temperature and various materials in the cell increases; the flow rate of the electrolytic liquid increases; the production of aluminum in the cell increases; the possibility that turbulence of molten fluid occurs in some locations of the cell increases.
The aluminum liquid in the cell is a heat dissipation medium of the electrolytic cell, so increasing or reducing the amount of aluminum production is one of the main means for adjusting the thermal balance of the aluminum electrolytic cell.
Summary of the Invention According to one aspect of the present invention, there is provided a cathode boss structure for an aluminum electrolytic cell which includes cathode carbon blocks, wherein, a cathode boss is arranged on the top surface of the cathode carbon blocks or on the top of the gap between two cathode carbon blocks, the cathode boss utilizes a throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste around lateral portion; or the cathode boss utilizes an embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks respectively, and the binding carbon blocks are embedded into the paste around lateral portion.
The technical problem to be solved in some embodiments by the present invention is to provide a cathode boss structure for an aluminum electrolytic cell, so that cathode boss can be implanted into the top surface of the cathode of the electrolytic cell conveniently and quickly when the lateral portion of the common electrolytic cell is rammed, without revising the present cathode and lining. Implanting the cathode boss can efficiently form a "choking effect", reducing the flow rate of the aluminum liquid layer, decreasing energy dissipation from the aluminum liquid layer, therefore improving the production stability of electrolytic cell and reducing energy consumption, so as to overcome the defects present in the prior art.
The technical solution of the present invention in some embodiments is as follows:
the cathode boss is arranged on the top surface of the cathode carbon block or on the top of the gap between two cathode carbon blocks.
The distance between cathode boss in some embodiments is 400 mm-900 mm.
For different cell types, it may use sparse configuration or dense configuration.
- 2a -= 73140-36 The cathode boss may utilize a throughout elongate structure, i,e, the throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste around the lateral portion.
The cathode boss may also utilize an embedded and butted structure, i,e, the embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks respectively, and the binding carbon blocks are embedded into the paste around the lateral portion.
In some embodiments the cross-section of the cathode boss is in the shape of rectangle or isosceles trapezoid, has a height (a) of 80-200 mm and a width (b) of 100-400 mm.
In some embodiments the material of the cathode boss is graphitic carbon block or full graphitized carbon block.
In some embodiments, the distribution of the energy consumption of the aluminum electrolytic cell is as follows:
Total energy consumption = decomposition consumption of electrochemical reaction + power consumption of rectifier unit + through-flow loss of bus bar, anode and cathode + through-flow loss of electrolyte + system heat dissipation of electrolytic cell.
The consumption reduction of the invention starts from the through-flow loss of electrolyte and the system heat dissipation of electrolytic cell. According to "jetty" principle, providing a dam at the bottom of the fluid will increase the flow resistance, and may efficiently reduce the flow rate. The cross configuration of various cathodes at the bottom of the cell may reduce the flow of aluminum liquid and electrolyte, reduce disturbance of the electrolyte resistance induced by the flow of aluminum liquid, and reduce the distance of the anode bottom from the surface of the aluminum liquid (electrode spacing), thereby reducing through-flow loss of the current in the electrolyte. In addition, according to heat transfer theory, the less the volume and area of the heat transfer medium, the lower the heat transfer efficiency.
Given the same aluminum level, because the high cathode occupies a part of aluminum liquid space, the volume of the aluminum liquid and the heat dissipation area of the lateral portion are reduced, so as to achieve the object to reduce the heat dissipation from the lateral portion.
the cathode boss is arranged on the top surface of the cathode carbon block or on the top of the gap between two cathode carbon blocks.
The distance between cathode boss in some embodiments is 400 mm-900 mm.
For different cell types, it may use sparse configuration or dense configuration.
- 2a -= 73140-36 The cathode boss may utilize a throughout elongate structure, i,e, the throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste around the lateral portion.
The cathode boss may also utilize an embedded and butted structure, i,e, the embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks respectively, and the binding carbon blocks are embedded into the paste around the lateral portion.
In some embodiments the cross-section of the cathode boss is in the shape of rectangle or isosceles trapezoid, has a height (a) of 80-200 mm and a width (b) of 100-400 mm.
In some embodiments the material of the cathode boss is graphitic carbon block or full graphitized carbon block.
In some embodiments, the distribution of the energy consumption of the aluminum electrolytic cell is as follows:
Total energy consumption = decomposition consumption of electrochemical reaction + power consumption of rectifier unit + through-flow loss of bus bar, anode and cathode + through-flow loss of electrolyte + system heat dissipation of electrolytic cell.
The consumption reduction of the invention starts from the through-flow loss of electrolyte and the system heat dissipation of electrolytic cell. According to "jetty" principle, providing a dam at the bottom of the fluid will increase the flow resistance, and may efficiently reduce the flow rate. The cross configuration of various cathodes at the bottom of the cell may reduce the flow of aluminum liquid and electrolyte, reduce disturbance of the electrolyte resistance induced by the flow of aluminum liquid, and reduce the distance of the anode bottom from the surface of the aluminum liquid (electrode spacing), thereby reducing through-flow loss of the current in the electrolyte. In addition, according to heat transfer theory, the less the volume and area of the heat transfer medium, the lower the heat transfer efficiency.
Given the same aluminum level, because the high cathode occupies a part of aluminum liquid space, the volume of the aluminum liquid and the heat dissipation area of the lateral portion are reduced, so as to achieve the object to reduce the heat dissipation from the lateral portion.
= 73140-36 As compared with the prior arts cathode structure and configuration ways with the longitudinal arrangement configuration of cathodes of the same specifications and all of top surfaces of the cathodes being at the same horizontal plane, the invention in some embodiments achieves the following advantages: (1) slowing the flow rate of the aluminum liquid, reducing the probability of localized turbulence, and enhancing the production stability of the electrolytic cell;
(2) reducing the production of aluminum in the cell, reducing the volume and area for heat dissipation of the aluminum liquid, and reducing capital backlog; (3) enhancing the system stability of the electrolyte, and may reducing energy consumption following the reduction in heat dissipation.
As compared with the prior arts of boss forming ways by directly cutting on the whole cathode, forming boss by embedding, forming boss by ramming into the paste, in some embodiments the strip boss is implanted into the top surface of the cathode of the electrolytic cell conveniently and quickly when the lateral portion of the common aluminum electrolytic cell is rammed, without revising the present cathode and lining. Implanting the cathode boss can also form a "choking effect", achieving effects of energy saving. In addition, as compared with various boss forming ways described above, there is no direct connection between the boss and the cathode of the invention, thereby reducing through-flow amount, reducing electrochemical corrosion of the boss, and may enhance the service life of the boss.
The invention is applicable to all types of current electrolytic cells.
Brief Description of the Drawings Fig.1 is a schematic perspective view of the present invention;
Fig.2 is a schematic cross-sectional view of the present invention;
Fig.3 is a schematic longitudinal-sectional view of the present invention;
Fig.4 is a schematic view of the cathode boss with a trapezoid cross-section of the present invention;
Fig.5 is a schematic view of the cathode boss with a rectangular cross-section of the present invention; and Fig.6 is a schematic view of the heat dissipation of the aluminum liquid of the present invention.
Detailed Description of the Invention Embodiment of the present invention as shown in figs.1, 2 and 3 mainly comprises cathode carbon blocks 1, cathode bosses 2, and binding carbon blocks 4, wherein the cathode bosses 2 are placed on the top surface of the cathode carbon blocks 1 or across cathode gaps 3. The distance between cathode boss is 400mm-900 mm. For different cell types, it may use sparse configuration or dense configuration.
There are two implanting ways for the cathode bosses 2: (1) a throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste 5 around the lateral portion; and (2) an embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks 4 respectively, and the binding carbon blocks are embedded into the paste 5 around the lateral portion.
The cross-section of the cathode boss 2 is in the shape of rectangle or isosceles trapezoid, as shown in figs. 4 and 5.
The cathode boss 2 has a height (a) of 80-200mm and a width (b) (average width for isosceles trapezoid) of 100-400mm, as shown in figs. 4 and 5.
The material of the cathode boss 2 is graphitic carbon block or full graphitized carbon block.
The cathode boss of the invention may be implanted one by one via electrode change operation of the electrolytic cell. Implanting steps of each cathode boss are as follows:
Step 1:
After lateral portion block laying and cathode gap ramming are finished for major repair cell, the cathode bosses and carbon blocks are placed on the top surface of the cathode according to predetermined configuration solution (intensity).
Step 2:
The paste around the cell lining is rammed according to the prior method, wherein the paste may maintain the original design height, or increases 2-10 cm.
Step 3:
The electrolytic cell utilizing the cathode boss of the invention may be carried out baking startup according to aluminum liquid baking, etc. ' According to "jetty" principle, providing a dam at the bottom of the fluid will increase the flow resistance, and may efficiently reduce the flow rate. The cross configuration of various cathodes at the bottom of the cell may reduce the flow of aluminum liquid and electrolyte, reduce disturbance of the electrolyte resistance induced by the flow of aluminum liquid, and reduce the distance of the anode bottom from the surface of the aluminum liquid (electrode spacing), thereby reducing through-flow loss of the current in the electrolyte.
According to heat transfer theory, the less the volume and area of the heat transfer medium, the lower the heat transfer efficiency. Given the same aluminum level, because the high cathode occupies a part of aluminum liquid space, the volume of the aluminum liquid and the heat dissipation area of the lateral portion are reduced, so as to achieve the object to reduce the heat dissipation from the lateral portion, as illustrated in fig.6.
(2) reducing the production of aluminum in the cell, reducing the volume and area for heat dissipation of the aluminum liquid, and reducing capital backlog; (3) enhancing the system stability of the electrolyte, and may reducing energy consumption following the reduction in heat dissipation.
As compared with the prior arts of boss forming ways by directly cutting on the whole cathode, forming boss by embedding, forming boss by ramming into the paste, in some embodiments the strip boss is implanted into the top surface of the cathode of the electrolytic cell conveniently and quickly when the lateral portion of the common aluminum electrolytic cell is rammed, without revising the present cathode and lining. Implanting the cathode boss can also form a "choking effect", achieving effects of energy saving. In addition, as compared with various boss forming ways described above, there is no direct connection between the boss and the cathode of the invention, thereby reducing through-flow amount, reducing electrochemical corrosion of the boss, and may enhance the service life of the boss.
The invention is applicable to all types of current electrolytic cells.
Brief Description of the Drawings Fig.1 is a schematic perspective view of the present invention;
Fig.2 is a schematic cross-sectional view of the present invention;
Fig.3 is a schematic longitudinal-sectional view of the present invention;
Fig.4 is a schematic view of the cathode boss with a trapezoid cross-section of the present invention;
Fig.5 is a schematic view of the cathode boss with a rectangular cross-section of the present invention; and Fig.6 is a schematic view of the heat dissipation of the aluminum liquid of the present invention.
Detailed Description of the Invention Embodiment of the present invention as shown in figs.1, 2 and 3 mainly comprises cathode carbon blocks 1, cathode bosses 2, and binding carbon blocks 4, wherein the cathode bosses 2 are placed on the top surface of the cathode carbon blocks 1 or across cathode gaps 3. The distance between cathode boss is 400mm-900 mm. For different cell types, it may use sparse configuration or dense configuration.
There are two implanting ways for the cathode bosses 2: (1) a throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste 5 around the lateral portion; and (2) an embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks 4 respectively, and the binding carbon blocks are embedded into the paste 5 around the lateral portion.
The cross-section of the cathode boss 2 is in the shape of rectangle or isosceles trapezoid, as shown in figs. 4 and 5.
The cathode boss 2 has a height (a) of 80-200mm and a width (b) (average width for isosceles trapezoid) of 100-400mm, as shown in figs. 4 and 5.
The material of the cathode boss 2 is graphitic carbon block or full graphitized carbon block.
The cathode boss of the invention may be implanted one by one via electrode change operation of the electrolytic cell. Implanting steps of each cathode boss are as follows:
Step 1:
After lateral portion block laying and cathode gap ramming are finished for major repair cell, the cathode bosses and carbon blocks are placed on the top surface of the cathode according to predetermined configuration solution (intensity).
Step 2:
The paste around the cell lining is rammed according to the prior method, wherein the paste may maintain the original design height, or increases 2-10 cm.
Step 3:
The electrolytic cell utilizing the cathode boss of the invention may be carried out baking startup according to aluminum liquid baking, etc. ' According to "jetty" principle, providing a dam at the bottom of the fluid will increase the flow resistance, and may efficiently reduce the flow rate. The cross configuration of various cathodes at the bottom of the cell may reduce the flow of aluminum liquid and electrolyte, reduce disturbance of the electrolyte resistance induced by the flow of aluminum liquid, and reduce the distance of the anode bottom from the surface of the aluminum liquid (electrode spacing), thereby reducing through-flow loss of the current in the electrolyte.
According to heat transfer theory, the less the volume and area of the heat transfer medium, the lower the heat transfer efficiency. Given the same aluminum level, because the high cathode occupies a part of aluminum liquid space, the volume of the aluminum liquid and the heat dissipation area of the lateral portion are reduced, so as to achieve the object to reduce the heat dissipation from the lateral portion, as illustrated in fig.6.
Claims (5)
1. A cathode boss structure for an aluminum electrolytic cell which includes cathode carbon blocks, wherein, a cathode boss is arranged on the top surface of the cathode carbon blocks or on the top of the gap between two cathode carbon blocks, the cathode boss utilizes a throughout elongate cathode boss, the length thereof is 100-250 mm longer than that of cathode carbon block, and two ends thereof are directly embedded into the paste around lateral portion; or the cathode boss utilizes an embedded and butted cathode boss, the length thereof is in a range of 3000-3200 mm, two ends thereof are fixed by binding carbon blocks respectively, and the binding carbon blocks are embedded into the paste around lateral portion.
2. The cathode boss structure for an aluminum electrolytic cell of claim 1, wherein, the distance between cathode bosses is 400mm-900 mm.
3. The cathode boss structure for an aluminum electrolytic cell of claim 1, wherein, the cross-section of the cathode boss is in the shape of rectangle or isosceles trapezoid.
4. The cathode boss structure for an aluminum electrolytic cell of any one of claims 1-5, wherein, the cathode boss has a height (a) of 80-200mm and a width (b) of 100-400mm.
5. The cathode boss structure for an aluminum electrolytic cell of claim 1, wherein, the material of the cathode boss is graphitic carbon block or full graphitized carbon block.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300089.5A CN102121117B (en) | 2010-01-07 | 2010-01-07 | Cathode boss structure of aluminum electrolysis cell |
| CN201010300089.5 | 2010-01-07 | ||
| PCT/CN2011/000035 WO2011082659A1 (en) | 2010-01-07 | 2011-01-07 | Cathode with protrusion structure for aluminum electrolytic cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2786463A1 CA2786463A1 (en) | 2011-07-14 |
| CA2786463C true CA2786463C (en) | 2014-04-08 |
Family
ID=44249778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2786463A Active CA2786463C (en) | 2010-01-07 | 2011-01-07 | Cathode boss structure for aluminum electrolytic cell |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130277212A1 (en) |
| CN (1) | CN102121117B (en) |
| AU (1) | AU2011204685B2 (en) |
| CA (1) | CA2786463C (en) |
| MY (1) | MY156281A (en) |
| WO (1) | WO2011082659A1 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160857B (en) * | 2011-12-13 | 2016-06-01 | 贵阳铝镁设计研究院有限公司 | A kind of Network groove negative electrode structure |
| CN102719850A (en) * | 2012-06-29 | 2012-10-10 | 东北大学 | Method for nesting cylindrical bump on upper surface of cathode carbon block and base body |
| EP2909875B1 (en) | 2012-10-16 | 2020-06-17 | Ambri Inc. | Electrochemical energy storage devices and housings |
| US11387497B2 (en) | 2012-10-18 | 2022-07-12 | Ambri Inc. | Electrochemical energy storage devices |
| US10541451B2 (en) | 2012-10-18 | 2020-01-21 | Ambri Inc. | Electrochemical energy storage devices |
| US9312522B2 (en) | 2012-10-18 | 2016-04-12 | Ambri Inc. | Electrochemical energy storage devices |
| US11211641B2 (en) | 2012-10-18 | 2021-12-28 | Ambri Inc. | Electrochemical energy storage devices |
| US9520618B2 (en) | 2013-02-12 | 2016-12-13 | Ambri Inc. | Electrochemical energy storage devices |
| US11721841B2 (en) | 2012-10-18 | 2023-08-08 | Ambri Inc. | Electrochemical energy storage devices |
| US9735450B2 (en) | 2012-10-18 | 2017-08-15 | Ambri Inc. | Electrochemical energy storage devices |
| CN102965691B (en) * | 2012-12-18 | 2016-06-01 | 广西强强碳素股份有限公司 | Dovetail type used for aluminium electrolysis combination specially-shaped cathode |
| US10270139B1 (en) | 2013-03-14 | 2019-04-23 | Ambri Inc. | Systems and methods for recycling electrochemical energy storage devices |
| US9502737B2 (en) | 2013-05-23 | 2016-11-22 | Ambri Inc. | Voltage-enhanced energy storage devices |
| CN105830247B (en) | 2013-10-16 | 2019-04-26 | 安保瑞公司 | Sealing element for high-temperature reactivity material apparatus |
| US10181800B1 (en) | 2015-03-02 | 2019-01-15 | Ambri Inc. | Power conversion systems for energy storage devices |
| WO2016141354A2 (en) | 2015-03-05 | 2016-09-09 | Ambri Inc. | Ceramic materials and seals for high temperature reactive material devices |
| US9893385B1 (en) | 2015-04-23 | 2018-02-13 | Ambri Inc. | Battery management systems for energy storage devices |
| US11929466B2 (en) | 2016-09-07 | 2024-03-12 | Ambri Inc. | Electrochemical energy storage devices |
| EP3607603A4 (en) | 2017-04-07 | 2021-01-13 | Ambri Inc. | Molten salt battery with solid metal cathode |
| CN112877732B (en) * | 2021-01-13 | 2022-02-22 | 东北大学 | Cathode structure for reducing precipitation formation of aluminum electrolytic cell |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631121A (en) * | 1986-02-06 | 1986-12-23 | Reynolds Metals Company | Alumina reduction cell |
| CN100478500C (en) * | 2007-03-02 | 2009-04-15 | 冯乃祥 | Abnormal cathode carbon block structure aluminum electrolysis bath |
| CN201261809Y (en) * | 2008-08-12 | 2009-06-24 | 高德金 | Cathode inner lining with molten aluminum magnetic vortex stream adjustment device |
| CN101413136B (en) * | 2008-10-10 | 2010-09-29 | 沈阳北冶冶金科技有限公司 | Novel cathode structured aluminum cell with longitudinal and transversal wave damping functions |
| CN201354385Y (en) * | 2009-01-09 | 2009-12-02 | 贵阳铝镁设计研究院 | Aluminum electrolysis bath cathode block structure |
| CN201354389Y (en) * | 2009-02-18 | 2009-12-02 | 贵阳铝镁设计研究院 | Combination-type cathode of aluminum electrolytic cell |
| CN201367467Y (en) * | 2009-03-03 | 2009-12-23 | 沈阳铝镁设计研究院 | Energy-saving consumption-reducing electrolysis bath |
| CN201367472Y (en) * | 2009-03-05 | 2009-12-23 | 沈阳铝镁设计研究院 | Cathode structure of aluminium electrolysis bath of bath bottom tapping |
-
2010
- 2010-01-07 CN CN201010300089.5A patent/CN102121117B/en not_active Expired - Fee Related
-
2011
- 2011-01-07 AU AU2011204685A patent/AU2011204685B2/en active Active
- 2011-01-07 WO PCT/CN2011/000035 patent/WO2011082659A1/en active Application Filing
- 2011-01-07 CA CA2786463A patent/CA2786463C/en active Active
- 2011-01-07 US US13/520,932 patent/US20130277212A1/en not_active Abandoned
- 2011-01-07 MY MYPI2012003092A patent/MY156281A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2011204685B2 (en) | 2014-09-25 |
| US20130277212A1 (en) | 2013-10-24 |
| AU2011204685A1 (en) | 2012-07-26 |
| CN102121117A (en) | 2011-07-13 |
| WO2011082659A1 (en) | 2011-07-14 |
| MY156281A (en) | 2016-01-29 |
| CN102121117B (en) | 2015-04-08 |
| CA2786463A1 (en) | 2011-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2786463C (en) | Cathode boss structure for aluminum electrolytic cell | |
| CN201367472Y (en) | Cathode structure of aluminium electrolysis bath of bath bottom tapping | |
| CN204080126U (en) | Be provided with the aluminium cell of insulation stop gauge | |
| CA2785868C (en) | Cell bottom structure of reduction cell | |
| CN201367467Y (en) | Energy-saving consumption-reducing electrolysis bath | |
| CN204342891U (en) | Low consumption prebaked anode used for aluminium electrolysis | |
| CN102560544B (en) | Percolating type aluminium electrolytic cell and method for stabilizing molten aluminium in electrolytic cell | |
| AU2010338951B2 (en) | Method for allocating cathodes of aluminum electrolytic cell | |
| CN101781772A (en) | Slot base aluminium electrolysis cell cathode structure | |
| CN101805912B (en) | Cathode of aluminum electrolysis cell | |
| CN204661837U (en) | A kind of 600KA aluminium electrolysis cell anode carbon block configuration structure | |
| CN101768759B (en) | Energy saving and consumption reduction method of aluminum reduction cell | |
| AU2011204684B2 (en) | Cathode with replaceable assembly for retarding flow in aluminum electrolytic cell | |
| CN201495299U (en) | Cathode of aluminum cell | |
| CN103243351B (en) | A kind of subregion electrolysis pre-calcining electrolytic cell | |
| CN101781775B (en) | Cathode of aluminum cell | |
| CN207210553U (en) | A kind of aluminum electrolyzing cell used prebaked anodes of 400KA | |
| CN201473602U (en) | Cathode of aluminum electrolysis bath | |
| CN217052440U (en) | Novel embedded high-conductivity cathode steel bar | |
| CN201770786U (en) | Cathode aluminium shielding wall suitable for aluminum electrolysis bath | |
| CN209669365U (en) | A kind of style plate insulating brick used for aluminium electrolysis | |
| CN201495298U (en) | Aluminum cell cathode with local surface protrusion | |
| CN201581140U (en) | Aluminum electrobath cathode | |
| CN201751430U (en) | Novel special-shaped carbon block used for side part of aluminum electrolytic tank | |
| CN206887243U (en) | A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |