CN201545919U - Aluminum electrolytic tank cathode structure - Google Patents
Aluminum electrolytic tank cathode structure Download PDFInfo
- Publication number
- CN201545919U CN201545919U CN2009203149296U CN200920314929U CN201545919U CN 201545919 U CN201545919 U CN 201545919U CN 2009203149296 U CN2009203149296 U CN 2009203149296U CN 200920314929 U CN200920314929 U CN 200920314929U CN 201545919 U CN201545919 U CN 201545919U
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- cathode
- cathode carbon
- aluminum
- electrolytic tank
- gap
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Abstract
The utility model discloses a pre-braked anode aluminum electrolytic tank cathode structure, which consists of cathode carbon blocks and cathode steel bars, and is characterized in that a group of high-cathode carbon blocks (2) is arranged at the intervals of one group or a plurality of groups of low-cathode carbon blocks (1). A gap (4) is arranged in the middle portion of the high-cathode carbon block (2); the bottom surface of the gap (4) is equal to or higher than the top surface of each low-cathode carbon block (1); the cross-section size of a cathode steel bar (3) inside each high-cathode carbon block (2) can be larger than or equal to the cross-section size of a cathode steel bar inside each low-cathode carbon block (1); and the gap arranged on each high-cathode carbon block enables aluminum liquid inside the electrolytic tank to pass through the gap and flow to an aluminum outlet end. The pre-braked anode aluminum electrolytic tank cathode structure appropriately cuts a regular furnace chamber of the aluminum electrolytic tank through overlapped arrangement of high cathode and low cathode in order to reduce influence of fluctuation of aluminum liquid interface on steadiness of the aluminum electrolytic tank, and simultaneously reduce secondary reaction of aluminum liquid to increase current efficiency of aluminum electrolysis.
Description
Technical field
The utility model relates to a kind of aluminium cell, particularly relates to a kind of cathode structure of aluminium cell.
Background technology
In aluminium cell, constituted aluminum smelting technology groove regular, bottom level by cathode carbon pieces, liner, side wall carbon block, artificial stretching one's legs.Along with constantly development and improve and of aluminum electrolyzation technology to the further investigation of electrolysis of aluminum theory, the trend of more and more large-scale change has appearred in the aluminium cell grooved, simultaneously big more according to production practice grooved both domestic and external, the bad more grasp of its stability, and the fluctuation at aluminium liquid interface is closely related in the stability of electrolyzer and the electrolyzer, and the electrolyzer that stability is bad, can't ordinary production.
Simultaneously, because the restriction of cathode carbon pieces height and width, the alternation of cross-section scope of cathode steel bar is little, is difficult to improve to greatest extent the electric current that reaches in the aluminium liquid in the cathode carbon pieces and distributes.
Summary of the invention
The purpose of this utility model is: a kind of cathode structure of aluminium cell is provided, this structure can reduce the influence of the fluctuation at aluminium liquid interface to stability of aluminum electrolytic bath, the secondary reaction that reduces aluminium liquid simultaneously is to improve the current efficiency of electrolysis of aluminum, to overcome the deficiencies such as stability of aluminum electrolytic bath difference that prior art exists.
The utility model is to constitute like this: it comprises the cathode carbon pieces of two or more different heights, one group or several groups low cathode carbon pieces in every interval are provided with one group of high cathode carbon pieces, gap is offered at high cathode carbon pieces middle part, make the aluminium liquid in the electrolyzer can flow to aluminium inlet by gap, the minimum end face that is low to moderate cathode carbon pieces of the height of gap.
For reducing cathode drop and being the horizontal current in the minimizing electrolyzer aluminium liquid, can suitably regulate its cathode steel bar cross dimensions and height according to the height of high cathode carbon pieces, the cross-sectional sizes of cathode steel bar can be consistent on the rod iron length direction, also can progressively change (increase or reduce) its cross-sectional sizes of can also stepped appearance suddenling change in proportion.
The beneficial effects of the utility model are: the staggered arrangement by the height negative electrode is carried out suitable cutting apart to the regular burner hearth of aluminium cell, with the fluctuation that the reduces aluminium liquid interface influence to stability of aluminum electrolytic bath, the secondary reaction that reduces aluminium liquid simultaneously is to improve the current efficiency of electrolysis of aluminum.
Description of drawings
Fig. 1 is synoptic diagram of the present utility model, sectional drawing;
Fig. 2 is a synoptic diagram of the present utility model, illustrates height negative electrode and gap among the figure.
Embodiment
Embodiment of the present utility model: with shown in the accompanying drawing 2, the cathode carbon pieces by different heights in an electrolyzer constitutes electrolyzer burner hearth negative electrode as accompanying drawing 1, and the cathode carbon pieces height can have two or more specifications.Low cathode carbon pieces 1 and high cathode carbon pieces 2 layouts that in electrolyzer, be staggered, every interval is hanged down cathode carbon pieces 1 for one group or several groups one group high cathode carbon pieces 2 is set; Offer gap 4 on the high cathode carbon pieces 2, make the aluminium liquid in the electrolyzer can flow to aluminium inlet by gap 4, the minimum end face that is low to moderate cathode carbon pieces 1 of the height of gap 4.
The cross dimensions of the cathode steel bar 3 in the high cathode carbon pieces 2 can be more than or equal to the cross dimensions of the cathode steel bar in the low cathode carbon pieces 1.Can suitably regulate its cathode steel bar 3 cross dimensions and height according to the height of high cathode carbon pieces 2, the cross-sectional sizes of cathode steel bar 3 can be consistent on the rod iron length direction, also can progressively change (increase or reduce) its cross-sectional sizes of can also stepped appearance suddenling change in proportion.
Claims (4)
1. cathode structure of aluminium cell, it comprises cathode carbon pieces and cathode steel bar, it is characterized in that: one group or several groups low cathode carbon pieces (1) in every interval are provided with one group of high cathode carbon pieces (2).
2. cathode structure of aluminium cell according to claim 1 is characterized in that: offer gap (4) at high cathode carbon pieces (2) middle part.
3. cathode structure of aluminium cell according to claim 2 is characterized in that: the bottom surface of gap (4) etc. is higher than or is higher than the end face of low cathode carbon pieces (1).
4. cathode structure of aluminium cell according to claim 1 is characterized in that: the cross dimensions of the cathode steel bar (3) in the high cathode carbon pieces (2) is greater than the cross dimensions of the cathode steel bar in the low cathode carbon pieces (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203149296U CN201545919U (en) | 2009-11-17 | 2009-11-17 | Aluminum electrolytic tank cathode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203149296U CN201545919U (en) | 2009-11-17 | 2009-11-17 | Aluminum electrolytic tank cathode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201545919U true CN201545919U (en) | 2010-08-11 |
Family
ID=42601088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203149296U Expired - Lifetime CN201545919U (en) | 2009-11-17 | 2009-11-17 | Aluminum electrolytic tank cathode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201545919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105452537A (en) * | 2013-08-09 | 2016-03-30 | 力拓艾尔坎国际有限公司 | Electrolysis tank with slotted floor |
| GB2532949A (en) * | 2014-12-02 | 2016-06-08 | Dubai Aluminium Pjsc | Electrolytic pot for hall-héroult process, having a cathode formed of high and low cathode blocks |
-
2009
- 2009-11-17 CN CN2009203149296U patent/CN201545919U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105452537A (en) * | 2013-08-09 | 2016-03-30 | 力拓艾尔坎国际有限公司 | Electrolysis tank with slotted floor |
| GB2532949A (en) * | 2014-12-02 | 2016-06-08 | Dubai Aluminium Pjsc | Electrolytic pot for hall-héroult process, having a cathode formed of high and low cathode blocks |
| WO2016088001A1 (en) * | 2014-12-02 | 2016-06-09 | Dubai Aluminium Pjsc | Electrolytic pot for hall-heroult process, having a cathode formed of high and low cathode blocks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER NAME: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. |
|
| CP03 | Change of name, title or address |
Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
|
| CX01 | Expiry of patent term |