CN201924084U - Aluminum electrolysis cell cathode provided with longitudinal partition wall - Google Patents
Aluminum electrolysis cell cathode provided with longitudinal partition wall Download PDFInfo
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- CN201924084U CN201924084U CN2010206647313U CN201020664731U CN201924084U CN 201924084 U CN201924084 U CN 201924084U CN 2010206647313 U CN2010206647313 U CN 2010206647313U CN 201020664731 U CN201020664731 U CN 201020664731U CN 201924084 U CN201924084 U CN 201924084U
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Abstract
The utility model discloses an aluminum electrolysis cell cathode provided with a partition wall. The partition wall is arranged in a chamber of the aluminum electrolysis cell cathode, one end of the partition wall is connected with a flue end side carbon block, and the distance from the other end of the partition wall to an aluminum end side carbon block ranges from 1m to 1.5m. The partition wall is disposed in the chamber of an aluminum electrolysis cell, circular flowing of liquid aluminum is blocked, fluctuation on the interface of the liquid aluminum is suppressed, consequentially voltage swing of the aluminum electrolysis cell is effectively suppressed, an electrolysis process is stable, the purpose of reducing an electrode distance, voltage and energy consumption is realized, and the aluminum electrolysis cell cathode is simple in method and device and easy in operation and realization, and can be widely applied to existing common aluminum electrolysis cells.
Description
Technical field
The utility model relates to technical field of aluminum electrolysis, particularly relates to a kind of aluminium electrolytic cell cathode that has longitudinal partition wall.
Background technology
General aluminum cell cathode inner lining is the box describe device of a rectangular parallelepiped at present, is built by laying bricks or stones by various refractory materialss to form.The peviform cavity of cathode inner lining is called the groove thorax, and molten cryolitic electrolytic solution and the aluminium liquid about 900～1000 ℃ is equipped with in groove thorax inside.Molten cryolitic electrolytic solution has severe corrosive, can dissolved oxygen aluminium, ability molten cryolitic electrolytic solution erosive engineering materials has only carbon element now, so, what cell lining contacted with molten cryolitic electrolytic solution all is the charcoal piece, groove thorax bottom is that polylith elongated rectangular shape cathode carbon pieces is built by laying bricks or stones side by side and formed, as shown in Figure 1.
Lower floor in the groove thorax is an aluminium liquid, is molten cryolitic electrolytic solution above the aluminium liquid, and anode is immersed in the electrolytic solution, and electrochemical reaction is carried out in electrolytic solution, and the aluminium liquid of groove thorax lower floor is the actual negative electrode of electrochemical reaction.Electrolyzer is in strong magnetic field circumstance, and aluminium liquid is conductive fluid, must be subjected to magnetic field induction to produce electromagnetic force, and this electromagnetic force makes aluminium liquid flow, fluctuate and protuberance, and this fluctuation on aluminium liquid surface and protuberance are the major causes of bath voltage fluctuation (being commonly called as the voltage pendulum).The fluctuation of bath voltage makes the electrolytic process instability, and limiting groove voltage further reduces, and has also limited the effort that we cut down the consumption of energy.The fluctuation that suppresses aluminium liquid interface is the key that reduces pole span, reduces voltage.Aluminium liquid is because be limited in the rectangular slot thorax, and flowing can only be annularly flow in the groove thorax.After measured, aluminium liquid flows as shown in Figure 2 form, always the several little whirlpool in Maelstrom and bight.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the voltage pendulum that has the fluctuation of aluminium liquid interface now and cause, and provides a kind of aluminium electrolytic cell cathode that has partition wall, to reach the purpose that reduces pole span, reduces voltage, cuts down the consumption of energy.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of aluminium electrolytic cell cathode that has longitudinal partition wall comprises the cathode can thorax, is provided with longitudinal partition wall in the groove thorax, and an end of longitudinal partition wall links to each other with the flue end side wall carbon block, and the other end is apart from aluminium inlet side wall carbon block 1～1.5m, to reserve out the aluminium passage.Partition wall can be blocked flowing of aluminium liquid, avoids forming whirlpool, suppresses the interface fluctuation of aluminium liquid, thereby has suppressed the voltage pendulum of aluminium cell.
Present electrolyzer all is a prebaked-anode type cell, and two row's prebaked anodes are arranged, and the centre joint between two row's anodes is generally 200mm, and the longitudinal partition wall of above-mentioned aluminium electrolytic cell cathode highly is lower than aluminium liquid interface 1～5cm along the centre joint setting of prebaked anode.Because the diffusion of aluminum oxide in ionogen relies on circulating of electrolyte solution, so being set, partition wall only wishes to cut off aluminium liquid, do not wish to cut off electrolyte solution.In addition, all refractory materialss, refractory does not melt electrolytical long-term erosion.So the height of partition wall is advisable to be lower than aluminium liquid height slightly.
Aforementioned longitudinal partition wall should select proportion greater than 2.5, resistant to elevated temperatures material makes, as, silicon carbide, alundum (aluminum oxide) or titanium boride.Because the proportion of 1000 ℃ of aluminium liquid is about 2.3, proportion wants floating less than 2.3 material, if directly longitudinal partition wall is placed the groove thorax, the proportion of these panes of then doing partition wall is good more heavily more, should reach 2.5 at least.
Compared with prior art, the utility model is provided with a vertically individual partition wall in the groove thorax of aluminium cell, blocked circulating of aluminium liquid, suppress the interface fluctuation of aluminium liquid, thereby effectively suppressed the voltage pendulum of aluminium cell, stablize electrolytic process, reach the purpose that reduces pole span, reduces voltage, cuts down the consumption of energy, and the inventive method and device are simple, and easy handling and realization can widespread uses in existing common aluminium cell.
Description of drawings
Fig. 1 is existing common aluminium electrolysis cell thorax;
Fig. 2 is the flow-pattern of aluminium liquid in the groove thorax;
Fig. 3 is the aluminium electrolysis cell thorax that negative electrode is provided with partition wall;
Fig. 4 is the structural representation that is provided with the aluminium cell of partition wall;
Fig. 5 is the A-A sectional view of Fig. 3;
Fig. 6 is the cathode carbon pieces that is inlaid with partition wall.
Embodiment
Embodiment 1: partition wall and cathode carbon pieces all will be immersed in about 1000 ℃ aluminium liquid, and matter liquid is separated in regular meeting's contact electricity in the time of also, so partition wall must be high temperature resistant, material can not dissolve into aluminium liquid, selects the charcoal piece to do partition wall, and is specific as follows:
Shown in the aluminium cell of Figure 4 and 5, there is the centre joint between two row's prebaked anodes, 5, two row's anodes 5 to be generally 200mm.With longitudinal partition wall 2 and cathode carbon pieces 6 make whole form groove thorax 1(because the proportion of charcoal piece less than 2.3, so must make longitudinal partition wall 2 and cathode carbon pieces whole floating) to prevent and treat, longitudinal partition wall 2 is provided with along the anode centre joint, one end of longitudinal partition wall 2 links to each other with the flue end side wall carbon block, the other end apart from 1 meter of aluminium flowing-out mouth side wall carbon block to reserve the aluminium passage.The purpose that longitudinal partition wall 2 is set is to wish to cut off aluminium liquid, does not wish to cut off electrolyte solution, because the diffusion of aluminum oxide in ionogen relies on circulating of electrolyte solution, so the height of partition wall is advisable to be lower than aluminium liquid height slightly.Present electrolyzer aluminium liquid height is usually at 20cm, and the desirable 18cm of partition wall height is lower than aluminium liquid interface 2cm.
After longitudinal partition wall 2 has been arranged in the groove thorax 1, cut off the path that aluminium liquid forms Maelstrom shown in Figure 2, in the two halves groove thorax that the flowing of aluminium liquid will be limited in cutting apart, flow and fluctuate and all be suppressed, the disturbance at interface can weaken, therefore, can suppress the voltage pendulum, reduce bath voltage, cut down the consumption of energy.
Embodiment 2: adopt silicon carbide, alundum or titanium boride are made the partition wall 2 of long strip shape, partition wall 2 is placed groove thorax 1, place along the anode centre joint, one end of partition wall 2 connects flue end side wall carbon block 3, the other end is apart from 4 1.5 meters of aluminium flowing-out mouth side wall carbon blocks, and the height of partition wall 2 is lower than aluminium liquid interface 5cm.
Claims (3)
1. aluminium electrolytic cell cathode that has longitudinal partition wall, comprise cathode can thorax (1), it is characterized in that: be provided with longitudinal partition wall (2) in groove thorax (1), an end of longitudinal partition wall (2) links to each other with flue end side wall carbon block (3), and the other end is apart from aluminium inlet side wall carbon block (4) 1～1.5m.
2. according to the described aluminium electrolytic cell cathode that has longitudinal partition wall of claim 1, it is characterized in that: longitudinal partition wall (2) is along the centre joint setting of prebaked anode (5).
3. according to claim 1 or the 2 described aluminium electrolytic cell cathodes that have longitudinal partition wall, it is characterized in that: the height of longitudinal partition wall (2) is lower than aluminium liquid interface 1～5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206647313U CN201924084U (en) | 2010-12-17 | 2010-12-17 | Aluminum electrolysis cell cathode provided with longitudinal partition wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206647313U CN201924084U (en) | 2010-12-17 | 2010-12-17 | Aluminum electrolysis cell cathode provided with longitudinal partition wall |
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| Publication Number | Publication Date |
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| CN201924084U true CN201924084U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206647313U Expired - Fee Related CN201924084U (en) | 2010-12-17 | 2010-12-17 | Aluminum electrolysis cell cathode provided with longitudinal partition wall |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560539A (en) * | 2010-12-17 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Method for inhibiting voltage swing of aluminum reduction cell and baffle wall-carrying cathode of aluminum reduction cell |
| CN103837323A (en) * | 2014-03-10 | 2014-06-04 | 北京工业大学 | Thickness-variable liquid film pool device enabling liquid film to be stabilized rapidly after being impacted |
| CN104213152A (en) * | 2013-09-13 | 2014-12-17 | 高伟 | Aluminum electrolysis cell with center joint material blocking partition plate |
-
2010
- 2010-12-17 CN CN2010206647313U patent/CN201924084U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560539A (en) * | 2010-12-17 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Method for inhibiting voltage swing of aluminum reduction cell and baffle wall-carrying cathode of aluminum reduction cell |
| CN104213152A (en) * | 2013-09-13 | 2014-12-17 | 高伟 | Aluminum electrolysis cell with center joint material blocking partition plate |
| CN104213152B (en) * | 2013-09-13 | 2018-07-06 | 高德金 | It is provided with the aluminium cell of middle seam backgauge partition board |
| CN103837323A (en) * | 2014-03-10 | 2014-06-04 | 北京工业大学 | Thickness-variable liquid film pool device enabling liquid film to be stabilized rapidly after being impacted |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20141217 |
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| EXPY | Termination of patent right or utility model |