CN201864785U - Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell - Google Patents
Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell Download PDFInfo
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- CN201864785U CN201864785U CN2010205663732U CN201020566373U CN201864785U CN 201864785 U CN201864785 U CN 201864785U CN 2010205663732 U CN2010205663732 U CN 2010205663732U CN 201020566373 U CN201020566373 U CN 201020566373U CN 201864785 U CN201864785 U CN 201864785U
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Abstract
The utility model discloses an aluminum electrolysis cell, in particular to a structure capable of greatly reducing horizontal currents in aluminum liquid 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; one section of the cathode steel bar, close to the end part of the cathode carbon block, is cut into an upper part and a lower part along the length direction by a separating seam; one section of the cathode steel bar, which is not cut in the middle of the cathode carbon block, is totally connected with the cathode carbon block by a conductive body; the upper half part of the cathode carbon steel bar, close to the end part of the cathode carbon block, is connected with the cathode carbon block by the conductive body, and the lower half part of the cathode carbon steel bar is insulated from the cathode carbon block by an insulator; separating seam insulating material is filled in the separating seam, so that the upper part and the lower par of the cathode steel bar are insulated from each other; and the cathode steel bar integrally penetrates out of the electrolytic cell. With the structure, the horizontal currents in the aluminum liquid are greatly reduced, cathode currents can be distributed more uniformly, the stability of the electrolytic cell is improved, the service life of the cell is prolonged, the energy consumption of aluminum can be reduced effectively, and the energy-saving effect is obvious.
Description
Technical field
The utility model relates to the cathode construction that Hall-Ai Lu electrolytic process is produced the aluminium cell, particularly aluminium cell of primary aluminum, and specifically, the utility model relates to a kind of structure that reduces horizontal current in the aluminum cell aluminum liquor significantly.
Background technology
Metallic aluminium is produced in industrial employing fused salt electrolysis process, i.e. electrolytic dissolution is a aluminum oxide in the ionogen of main component at the fused sodium aluminum fluoride, and the main at present method that adopts is Hall-Ai Lu (Hall-Heroult) electrolytic process.
The direct equipment of producing electrolytic aluminum is electrolyzer, and electrolyzer mainly contains the two parts to be formed, and a part is an anode, is made by carbon materials usually, and another part is a negative electrode, is built by laying bricks or stones by charcoal piece and inner lining material to form.
Aluminium cell is connected in the whole electrolytic series, and electric current enters electrolyzer from anode, by the fused ionogen, pass liquid aluminium liquid, enter cathode carbon pieces, electric current is collected by the cathode steel bar that is assemblied in the cathode carbon pieces, imports next electrolyzer by negative busbar.
Existing cathode structure of aluminium cell is, cathode steel bar is equipped with in bottom at cathode carbon pieces, all adopt between cathode steel bar and the charcoal piece and prick the modes 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 be horizontal positioned in the same way, and the sidewall that an end of cathode steel bar stretches out electrolyzer is connected with negative busbar.The electrolyzer of this structure, there is a very large shortcoming in cathode conductive structure: because cathode steel bar and cathode carbon pieces horizontal positioned in the same way, cause producing in the aluminium liquid very large horizontal current, the vertical magnetic field acting in conjunction produces electromagnetic force in this horizontal current and the aluminium liquid, this electromagnetic force drives liquid aluminium liquid and flows in electrolyzer and fluctuation, if the horizontal current in the electrolyzer is excessive and skewness, will cause the fluctuation of aluminium liquid and electrolyte interface excessive, make electrolyzer produce serious unstable aborning, reduce current efficiency.In addition, horizontal current distributes along the length direction skewness of cathode carbon pieces in the aluminium liquid, makes the end of cathode carbon pieces locate the current density maximum, thereby 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 perpendicular field profile in the strict control aluminium liquid in the design of electrolyzer, and this has not only increased the difficulty of negative busbar design, and causes the cathode arrangement complexity, and the bus consumption is big, and investment increases.
The utility model content
The utility model is in order to solve the problems of the technologies described above, improve the stability of electrolyzer, propose a kind of structure that reduces horizontal current in the aluminum cell aluminum liquor significantly, its objective is the horizontal current that reduces in the aluminium liquid, make cathode current density more even, thereby improve the stability that aluminium cell is produced, make electrolyzer significantly reduce a ton aluminium energy consumption efficiently and smoothly operated than hanging down under the pole span, the while cathode current density is even, reduce the speed of cathode abrasion, prolong cathode life.
To achieve these goals, the utility model is achieved in that
A kind of structure that significantly reduces horizontal current in the aluminum cell aluminum liquor, prick solid or at least one cathode steel bar of casting in the cathode carbon pieces bottom, cathode steel bar is divided into two portions up and down being separated seam near a section of cathode carbon pieces end along its length, cathode steel bar does not have divided one section all to adopt electrical conductor to be connected with cathode carbon pieces at the cathode carbon pieces middle portion, cathode steel bar upper part near the cathode carbon pieces end adopts electrical conductor to be connected with cathode carbon pieces, lower part adopts isolator and cathode carbon pieces insulation, adopt the partitioning slot filling insulating material in the partitioning slot, make two portions cathode steel bar insulation up and down, cathode steel bar integral body passes from the sidepiece of electrolyzer.
Described electrical conductor is carbon paste or ferrophosphorus.
The all or part of bundle of described cathode steel bar is consolidated or is cast in the cathode carbon pieces.
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 every group of cathode carbon pieces bottom.
Advantage of the present utility model and effect are as follows: the utlity model has very strong practicality, do not change negative electrode go out electric mode be the side go out the electricity condition under, reduced the horizontal current in the aluminium liquid significantly, cathode current distribution is more even, improved the stability of electrolyzer, prolonged cell life, electrolyzer can be efficiently and smoothly operated under low pole span condition, reduce ton aluminium energy consumption effectively, had obvious energy-saving effect.
Description of drawings
Fig. 1 is the utility model embodiment cathode construction synoptic diagram.
Fig. 2 is the utility model embodiment cathode carbon pieces and cathode steel bar unitized construction synoptic diagram.
Fig. 3 is the vertical view of Fig. 2 cathode carbon pieces and cathode steel bar unitized construction.
Fig. 4 is that the A-A of Fig. 3 cuts open sectional view.
Among the 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 utility model is elaborated, but protection domain of the present utility model is not limit by embodiment.
As shown in the figure, a kind of structure that significantly reduces horizontal current in the aluminum cell aluminum liquor of the utility model, prick solid or at least one cathode steel bar 2 of casting in cathode carbon pieces 1 bottom, cathode steel bar 2 is divided into two portions up and down being separated seam 3 near a section of cathode carbon pieces 1 end along its length, cathode steel bar 2 does not have divided one section all to adopt electrical conductor 6 to be connected with cathode carbon pieces 1 at cathode carbon pieces 1 middle portion, cathode steel bar 2 upper part near cathode carbon pieces 1 end adopt electrical conductor 6 to be connected with cathode carbon pieces 1, lower part adopts isolator 5 and cathode carbon pieces 1 insulation, adopt partitioning slot insulating material 4 to fill in the partitioning slot 3, make two portions cathode steel bar 2 insulation up and down, cathode steel bar 2 integral body pass from the sidepiece of electrolyzer; Electrical conductor 6 is carbon paste or ferrophosphorus, and cathode steel bar 2 all or part of bundles are consolidated or cast in the cathode carbon pieces 1, and the cross-sectional shape of cathode steel bar 2 is square, circular, semicircle, trapezoidal or trilateral, and 1-50 root cathode steel bar is installed in every group of cathode carbon pieces 1 bottom.
The utility model is not changing under the condition that negative electrode goes out electric mode, the mode of connection of structure, cathode steel bar and cathode carbon pieces by changing cathode steel bar etc., regulate the combined resistance of cathode carbon pieces and cathode steel bar, significantly reduced the horizontal current in the aluminium liquid, cathode current distribution is more even, has improved the stability of electrolyzer, makes the electrolyzer can efficient stable production under low pole span condition, reduced ton aluminium energy consumption effectively, energy-saving effect is obvious.Reach the purpose that reduces horizontal current in the aluminium liquid.
Present embodiment has only been listed a kind of structure that realizes significantly reducing horizontal current of aluminum cell, also only at accompanying drawing, the realization measure of present method is described in the embodiment of this patent, and embodiment limits in this patent but this patent protection domain is not subjected to.
Claims (5)
1. structure that significantly reduces horizontal current in the aluminum cell aluminum liquor, it is characterized in that pricking admittedly or at least one cathode steel bar (2) of casting in cathode carbon pieces (1) bottom, cathode steel bar (2) along its length be separated near a section of cathode carbon pieces (1) end seam (3) be divided into about two portions, cathode steel bar (2) does not have divided one section all to adopt electrical conductor (6) to be connected with cathode carbon pieces (1) at cathode carbon pieces (1) middle portion, cathode steel bar (2) upper part near cathode carbon pieces (1) end adopts electrical conductor (6) to be connected with cathode carbon pieces (1), lower part adopts isolator (5) and cathode carbon pieces (1) insulation, adopt partitioning slot insulating material (4) to fill in the partitioning slot (3), make two portions cathode steel bar (2) insulation up and down, the whole sidepiece from electrolyzer of cathode steel bar (2) passes.
2. the structure that significantly reduces horizontal current in the aluminum cell aluminum liquor according to claim 1 is characterized in that described electrical conductor (6) is carbon paste or ferrophosphorus.
3. the structure that significantly reduces horizontal current in the aluminum cell aluminum liquor according to claim 1 is characterized in that all or part of bundle of described cathode steel bar (2) is solid or casts in the cathode carbon pieces (1).
4. the structure that significantly reduces horizontal current in the aluminum cell aluminum liquor according to claim 1, the cross-sectional shape that it is characterized in that described cathode steel bar (2) is square, circular, semicircle, trapezoidal or trilateral.
5. the structure that significantly reduces horizontal current in the aluminum cell aluminum liquor according to claim 1 is characterized in that described every group of cathode carbon pieces bottom installation 1-50 root cathode steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205663732U CN201864785U (en) | 2010-10-19 | 2010-10-19 | Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205663732U CN201864785U (en) | 2010-10-19 | 2010-10-19 | Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell |
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| CN201864785U true CN201864785U (en) | 2011-06-15 |
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| CN2010205663732U Expired - Lifetime CN201864785U (en) | 2010-10-19 | 2010-10-19 | Structure capable of greatly reducing horizontal current in aluminum liquid in aluminum electrolysis cell |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230191A (en) * | 2011-06-21 | 2011-11-02 | 中国铝业股份有限公司 | Method for separately leading out single-sided current in aluminum electrolytic cell |
| WO2012146063A1 (en) * | 2011-04-29 | 2012-11-01 | 中铝国际工程股份有限公司 | Method for uniforming distribution of current in aluminium electrolysis cell |
| WO2013016930A1 (en) * | 2011-08-04 | 2013-02-07 | 中国铝业股份有限公司 | Method for reducing horizontal current in liquid aluminum in aluminum reduction cell |
| WO2013040856A1 (en) * | 2011-09-24 | 2013-03-28 | 中铝国际工程股份有限公司 | Cathode structure for reducing horizontal current in molten aluminum |
| WO2013078746A1 (en) * | 2011-11-29 | 2013-06-06 | 东北大学 | Aluminum reduction cell cathode structure that reduces voltage and improves current distribution |
| CN103205775A (en) * | 2013-04-27 | 2013-07-17 | 郑州轻冶科技有限公司 | Horizontal current-feed aluminum electrolysis cell electrode |
| CN104250830A (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 |
| CN111996553A (en) * | 2020-09-22 | 2020-11-27 | 新疆生产建设兵团第八师天山铝业有限公司 | Cathode structure for reducing horizontal current in aluminum electrolytic cell |
-
2010
- 2010-10-19 CN CN2010205663732U patent/CN201864785U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012146063A1 (en) * | 2011-04-29 | 2012-11-01 | 中铝国际工程股份有限公司 | Method for uniforming distribution of current in aluminium electrolysis cell |
| CN102230191A (en) * | 2011-06-21 | 2011-11-02 | 中国铝业股份有限公司 | Method for separately leading out single-sided current in aluminum electrolytic cell |
| CN102230191B (en) * | 2011-06-21 | 2013-02-13 | 中国铝业股份有限公司 | Method for separately leading out single-sided current in aluminum electrolytic cell |
| WO2013016930A1 (en) * | 2011-08-04 | 2013-02-07 | 中国铝业股份有限公司 | Method for reducing horizontal current in liquid aluminum in aluminum reduction cell |
| WO2013040856A1 (en) * | 2011-09-24 | 2013-03-28 | 中铝国际工程股份有限公司 | Cathode structure for reducing horizontal current in molten aluminum |
| CN103014765A (en) * | 2011-09-24 | 2013-04-03 | 沈阳铝镁设计研究院有限公司 | Cathode structure for reducing horizontal current in aluminum liquid |
| 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 |
| WO2013078746A1 (en) * | 2011-11-29 | 2013-06-06 | 东北大学 | Aluminum reduction cell cathode structure that reduces voltage and improves current distribution |
| CN103205775A (en) * | 2013-04-27 | 2013-07-17 | 郑州轻冶科技有限公司 | Horizontal current-feed aluminum electrolysis cell electrode |
| CN103205775B (en) * | 2013-04-27 | 2015-04-15 | 郑州轻冶科技有限公司 | Horizontal current-feed aluminum electrolysis cell electrode |
| CN104250830A (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 |
| CN111996553A (en) * | 2020-09-22 | 2020-11-27 | 新疆生产建设兵团第八师天山铝业有限公司 | Cathode structure for reducing horizontal current in aluminum electrolytic cell |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Xiaodong Inventor after: Zhou Dongfang Inventor after: Liu Yafeng Inventor after: Liu Wei Inventor after: Zou Zhiyong Inventor after: Liu Ming Inventor after: Hu Hongwu Inventor after: Zhang Qinsong Inventor after: Bai Bin Inventor before: Yang Xiaodong Inventor before: Zhou Dongfang Inventor before: Liu Yafeng Inventor before: Liu Wei Inventor before: Zou Zhiyong Inventor before: Liu Ming Inventor before: Hu Hongwu Inventor before: Zhang Qinsong Inventor before: Bai Bin |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |