CN201390785Y - Aluminum electrolytic cell large-section slotted cathode bottom carbon block - Google Patents
Aluminum electrolytic cell large-section slotted cathode bottom carbon block Download PDFInfo
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- CN201390785Y CN201390785Y CN200920110972U CN200920110972U CN201390785Y CN 201390785 Y CN201390785 Y CN 201390785Y CN 200920110972 U CN200920110972 U CN 200920110972U CN 200920110972 U CN200920110972 U CN 200920110972U CN 201390785 Y CN201390785 Y CN 201390785Y
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- electrolytic cell
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- aluminum electrolytic
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Abstract
The utility model relates to an aluminum electrolytic cell large-section slotted cathode structure, which is characterized in that the cross section of an aluminum electrolytic cell cathode is a large section of 600*515mm, the bottom of the cathode is provided with slots, the upper middle portion of the cathode is provided with a flow guide groove, and the bottom of the flow guide groove is in arc angle shape. The aluminum electrolytic cell large-section slotted cathode bottom carbon block structure not only meets processing requirements of electrolytic production but achieves dual purposes of saving energy of electrolytic tanks and prolonging the service life of the electrolytic tanks.
Description
Technical field
The utility model relates to aluminium electrolytic equipment, the big section grooving cathode of specifically a kind of aluminium cell bottom charcoal piece.
Background technology
The aluminum electrolyzing cell used bottom cathode of tradition is cubic strip structure (Fig. 1,2), and aluminium liquid contact working face is in a smooth horizontal plane.In the production process, the aluminium level is subjected to electromagnetic field effect in the Aluminium Electrolysis, fluctuates in the 26-30 cm range, and bath voltage is in the fluctuation up and down of 4.15-4.18 volt.Factor affecting such as the oxidated scaling loss of cathode bottom charcoal piece, frictional wear, cell life is different with level of management according to the production control level, is between 1500-2500 days.
From electrolyzer power consumption angle, 4.16 volts of bath voltages are series voltages that formed by anode-ionogen-aluminium liquid-negative electrode.Wherein anode and cathode drop only are hundreds of millivolt (cathode furnace low pressure drop 340-360 millivolt), and main voltage is created between anode and the negative electrode.From the energy-conservation angle of electrolyzer, except reducing anode and cathode drop as far as possible, effectively shorten distance between anode and the negative electrode, be the energy-conservation effective way of electrolyzer.From this theory point of view, more domestic experts and scholars and research institution, novel cathode structure groove or special-shaped groove have been developed in numerous and confused and some Chinalco's associatings.Cooperate as Chongqing Tiantai Aluminium Industry Co., Ltd. and Feng Naixiang professor, at the novel cathode structure electrolyzer that the 168KA groove is tested, bath voltage can be reduced to 3.8 volts.The novel cathode structure electrolyzer all effectively shortens distance between anode and the negative electrode at present, has improved aluminium liquid stability aborning.But brought two problems simultaneously, the one, on strip structure basis, charcoal piece four directions, conventional cathode bottom, have the 80-130 groove, have a strong impact on (calculate by theory and shorten 2 years at least) to causing bath life.The 2nd, liquid aluminum descends about 20 centimetres, brings operation inconvenience to electrolysis production.Mainly show: 1. the oxidation corrosion of lateral mass upper part is serious; 2. the anode downward modulation is about 20 centimetres, puies forward the utmost point frequency and improves; 3. crust breaker can not satisfy use.Obscission in the time of individual month, takes place at roasting and starting 5-6 with the upper part in charcoal piece four directions, conventional cathode bottom strip structure fluting, has aggravated the negative electrode early damage.
Summary of the invention
The purpose of this utility model provides a kind of energy-conservation and big section fluting of prolongation cell life dual purpose aluminium cell bottom charcoal piece of electrolyzer that reaches simultaneously.
The technical solution of the utility model is: according to the annual 3-4 centimetre of reckoning of aluminium electrolytic cell cathode bottom charcoal piece scaling loss theoretical value, effectively increase cathode bottom charcoal piece working face to negative electrode band steel distance, can effectively prolong the aluminium cell cell life.Concrete scheme is: with the aluminium cell cross-sectional design is 600 * 515 millimeters big section grooving cathode structure, and its bottom has groove, convinces chute by patient analysis in the middle of the top, and the bottom of groove is an arc chord angle.
Big section fluting of the present utility model bottom charcoal piece, remove the bottom and have groove, aluminium liquid enters groove in the production, cause liquid aluminum to descend about 20 centimetres, cathode bottom charcoal piece upper surface only has 6-7 centimetre of aluminium liquid, effectively shorten distance between anode and the negative electrode, effectively improve liquid aluminum stability, reach good power savings outer (bath voltage only is the 3.8-3.9 volt), on strip structure basis, charcoal piece four directions, conventional cathode bottom, increase by 15 centimetres of cathode bottom charcoal piece thickness, after convincing chute by patient analysis in the middle, increase cathode bottom charcoal piece working face to negative electrode band steel distance (about 7 centimetres), the bottom of groove is an arc chord angle, avoid fluting position problem of stress concentration, can effectively prolong the electrolytic bath life-span.
The big section grooving cathode of aluminium cell of the present utility model bottom carbon block structure has promptly satisfied the electrolysis production processing requirement, reaches the dual purpose that electrolyzer is energy-conservation and prolong cell life simultaneously.
Description of drawings
Fig. 1 is a conventional aluminum electric tank cathode bottom charcoal piece cross-section structure.
Fig. 2 is a conventional aluminum electric tank cathode bottom charcoal piece front view.
Fig. 3 is the big section grooving cathode of an aluminium cell of the present utility model bottom charcoal piece cross-section structure.
Fig. 4 is the big section grooving cathode of an aluminium cell of the present utility model bottom charcoal piece front view.
Embodiment
As shown in Figure 2, the big section grooving cathode of aluminium cell of the present utility model structure is to be 600 * 515 millimeters big section grooving cathode structure with the aluminium cell cross-sectional design, its bottom has groove 1, has diversion trench 2 in the middle of the top, and the bottom of groove is an arc chord angle 3.
Claims (1)
1, the big section grooving cathode of a kind of aluminium cell bottom charcoal piece is characterized in that the aluminium electrolytic cell cathode transverse section is 600 * 515 millimeters a big section, and its bottom has groove, convinces chute by patient analysis in the middle of the top, and the bottom of groove is an arc chord angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920110972U CN201390785Y (en) | 2009-02-27 | 2009-02-27 | Aluminum electrolytic cell large-section slotted cathode bottom carbon block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920110972U CN201390785Y (en) | 2009-02-27 | 2009-02-27 | Aluminum electrolytic cell large-section slotted cathode bottom carbon block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390785Y true CN201390785Y (en) | 2010-01-27 |
Family
ID=41597608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920110972U Expired - Lifetime CN201390785Y (en) | 2009-02-27 | 2009-02-27 | Aluminum electrolytic cell large-section slotted cathode bottom carbon block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390785Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699990A (en) * | 2012-06-28 | 2012-10-03 | 中电投宁夏能源铝业青鑫炭素有限公司 | Forming process for cathode carbon block with bottom groove for aluminum electrolytic cell |
-
2009
- 2009-02-27 CN CN200920110972U patent/CN201390785Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699990A (en) * | 2012-06-28 | 2012-10-03 | 中电投宁夏能源铝业青鑫炭素有限公司 | Forming process for cathode carbon block with bottom groove for aluminum electrolytic cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
|
| CX01 | Expiry of patent term |