CN105671592A - Isometric segmentation method for aluminum electrolysis cell cathode steel rods - Google Patents
Isometric segmentation method for aluminum electrolysis cell cathode steel rods Download PDFInfo
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- CN105671592A CN105671592A CN201610143550.8A CN201610143550A CN105671592A CN 105671592 A CN105671592 A CN 105671592A CN 201610143550 A CN201610143550 A CN 201610143550A CN 105671592 A CN105671592 A CN 105671592A
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- cathode steel
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- aluminum electrolysis
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- 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
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses an isometric segmentation method for aluminum electrolysis cell cathode steel rods. A segmentation gap between two sections of cathode carbon rods is equal to a gap between two sets of anode carbon blocks of an aluminum electrolysis cell; and the two sections of cathode steel rods are symmetrical about the center line of the cathode carbon blocks of the aluminum electrolysis cell. The method is wide in application range, is applied to the production for real measurement, reduces the production voltage fluctuation by near 50%, reduces the level current by about 30%, is more obvious in current stabilizing and energy saving effect, is convenient for segmentation technology operation, and needs no complex design and calculation.
Description
Technical field:
The present invention is applied to construction and the production of aluminum electrolysis industry all size aluminium cell, particularly to the method for the equidistant segmentation of a kind of aluminum cell cathode steel bar.
Background technology:
Aluminium cell is the production equipment of a kind of high energy consumption, produces electric current and often reaches hundreds thousand of ampere, can be inevitably generated bigger horizontal current in process of production. The generation of horizontal current not only enlarges markedly vertical magnetic field, and can cause the big ups and downs of aluminum liquid and the gross distortion at electrolyte and aluminum liquid interface, affects the stability of magnetic fluid in groove, thus producing substantial amounts of idle power consumption.
Cathode steel bar segmentation can be blocked the part of horizontal electric current during electrolysis bath produces, improve current efficiency. But in industry, cathode steel bar segmentation not being sought unity of standard at present, segmentation is random, therefore horizontal current being suppressed limited, current efficiency improves inconspicuous. Even occurred level current break, production instability etc. the bad phenomenon produced can be affected at extreme case.
Summary of the invention:
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, and provide a kind of equidistant segmentation method of aluminum cell cathode steel bar, the method can solve that existing rod iron segmentation is unreasonable and the series of problems that causes.
As above conceive, the technical scheme is that a kind of equidistant segmentation method of aluminum cell cathode steel bar, it is characterized in that: make the spacing between the two groups of anode carbon blocks of sublevel interval and aluminium cell between two sections of negative carbons equal, and make two sections of cathode steel bars be symmetrical in the centrage of cell cathode carbon block.
The deviation of the spacing between sublevel interval and two groups of anode carbon blocks of aluminium cell between above-mentioned two sections of cathode steel bars controls within 1%.
Above-mentioned two sections of cathode steel bars are symmetrical in the centrage of cell cathode carbon block, and position deviation controls within 2%.
Present invention have the advantage that and good effect:
1, the segmentation distance of cathode steel bar is got wide with aluminium electrolysis cell anode carbon block spacing by the present invention, enables production electric current to keep when flowing to negative electrode from anode vertically, produces less horizontal current, improves current efficiency.
2, the cathode steel bar fragmentation technique of the present invention is easy and simple to handle, it is not necessary to through complicated design and calculating.
3, present invention can apply to the aluminium cell of different size, different grooved, applied widely.
4, the horizontal current in electrolysis bath production can be reduced about 30%, can effectively optimize CURRENT DISTRIBUTION, improve current efficiency, reduce idle power consumption by the application present invention, and energy-saving effect is obvious.
Accompanying drawing illustrates:
Fig. 1 is the equidistant stepwise schematic views of aluminum cell cathode steel bar.
In figure: 1-anode carbon block, 2-anode carbon block spacing, 3-cathode carbon pieces, 4-cathode steel bar, 5 cathode steel bar sublevel intervals, 6-aluminium cell centrage.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is illustrated.
Same specification, being changeless with the anode carbon block spacing (2) (i.e. L1) between two groups of anode carbon blocks (1) of grooved aluminium cell, the negative electrode of electrolysis bath is assembled by cathode carbon pieces (3) and cathode steel bar (4). When assembling cathode steel bar (4), adjust the sublevel interval (5) (i.e. L2) between two sections of cathode steel bars, so as to two groups of anode carbon block spacing (2) (i.e. L1) equal (i.e. L1=L2), and make two sections of cathode steel bars (4) be symmetrical in the center of cathode carbon pieces (3).
The equidistant fragmentation technique of the present invention has two data strictly to control:
1, cathode steel bar sublevel interval (5) (i.e. L2) must control within 1% with the deviation of two groups of anode carbon block spacing (2) (i.e. L1), i.e. L2=(0.99～1.01) L1.
2, the position of cathode steel bar sublevel interval (5) (i.e. L2). Must assure that and keep Striking symmetry with the centrage (6) of cathode carbon pieces (3) when it assembles, its position deviation controls within 2% (0.02*L2), with spacing (5) (i.e. L2) and spacing (2) (i.e. L1) strict centering after ensureing to install, enable production electric current to keep vertical when flowing to negative electrode from anode, produce less horizontal current, improve current efficiency.
The equidistant fragmentation technique of the application present invention, compared to other segmentation method, is surveyed aborning, produce the fluctuation of voltage reduce nearly 50%, horizontal current reduce about 30%, current stabilization, energy-saving effect clearly.
Different current intensity, different size, different grooved aluminium cell, its anode carbon block spacing (2) (i.e. L1) is different from, but the anode carbon block spacing (2) (i.e. L1) of each specification electrolysis bath is fixing. The application present invention, when the electrolytic cell cathode steel bar of different size, different grooved assembles, its cathode steel bar sublevel interval (5) (i.e. L2) only need to adjust according to the anode carbon block spacing (2) (i.e. L1) of this groove, it is not necessary to through complicated calculating and test. Therefore the equidistant fragmentation technique of the present invention can be applicable to the cathode steel bar assembling of all aluminium cells, easy and simple to handle, applied widely.
Claims (3)
1. the equidistant segmentation method of aluminum cell cathode steel bar, it is characterized in that: make the spacing between the two groups of anode carbon blocks of sublevel interval and aluminium cell between two sections of negative carbons equal, and make two sections of cathode steel bars be symmetrical in the centrage of cell cathode carbon block.
2. a kind of equidistant segmentation method of aluminum cell cathode steel bar according to claim 1, it is characterised in that: the deviation of the spacing between sublevel interval and two groups of anode carbon blocks of aluminium cell between above-mentioned two sections of cathode steel bars controls within 1%.
3. a kind of equidistant segmentation method of aluminum cell cathode steel bar according to claim 1, it is characterised in that: above-mentioned two sections of cathode steel bars are symmetrical in the centrage of cell cathode carbon block, and position deviation controls within 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143550.8A CN105671592B (en) | 2016-03-14 | 2016-03-14 | A kind of method that aluminum cell cathode steel bar is equidistantly segmented |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610143550.8A CN105671592B (en) | 2016-03-14 | 2016-03-14 | A kind of method that aluminum cell cathode steel bar is equidistantly segmented |
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| CN105671592A true CN105671592A (en) | 2016-06-15 |
| CN105671592B CN105671592B (en) | 2018-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018134754A1 (en) * | 2017-01-23 | 2018-07-26 | Dubai Aluminium Pjsc | Cathode assembly with metallic collector bar for electrolytic cell suitable for the Hall-Héroult process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204138785U (en) * | 2014-03-07 | 2015-02-04 | 新疆生产建设兵团农八师天山铝业有限公司 | A kind of cathode carbon pieces steel bar set structure of aluminum electrolytic |
| CN104451772A (en) * | 2013-09-25 | 2015-03-25 | 贵阳铝镁设计研究院有限公司 | Cathode structure for reducing horizontal current in electrolytic cell |
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2016
- 2016-03-14 CN CN201610143550.8A patent/CN105671592B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451772A (en) * | 2013-09-25 | 2015-03-25 | 贵阳铝镁设计研究院有限公司 | Cathode structure for reducing horizontal current in electrolytic cell |
| CN204138785U (en) * | 2014-03-07 | 2015-02-04 | 新疆生产建设兵团农八师天山铝业有限公司 | A kind of cathode carbon pieces steel bar set structure of aluminum electrolytic |
Non-Patent Citations (1)
| Title |
|---|
| 吴鸿等: "《铝电解工上册》", 31 December 2006 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018134754A1 (en) * | 2017-01-23 | 2018-07-26 | Dubai Aluminium Pjsc | Cathode assembly with metallic collector bar for electrolytic cell suitable for the Hall-Héroult process |
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| CN105671592B (en) | 2018-08-03 |
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