CN103243350A - Aluminum cell side conductive cathode structure for reducing horizontal current of molten aluminum - Google Patents
Aluminum cell side conductive cathode structure for reducing horizontal current of molten aluminum Download PDFInfo
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- CN103243350A CN103243350A CN2013101876297A CN201310187629A CN103243350A CN 103243350 A CN103243350 A CN 103243350A CN 2013101876297 A CN2013101876297 A CN 2013101876297A CN 201310187629 A CN201310187629 A CN 201310187629A CN 103243350 A CN103243350 A CN 103243350A
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Abstract
The invention discloses an aluminum cell side conductive cathode structure for reducing a horizontal current of molten aluminum. The horizontal current in the molten aluminum can be greatly reduced through installing and using a horizontal or inclined conductive side cathode steel rod. A structure parameter of a cathode is determined according to an actual cell type design, the horizontal current in the molten aluminum can be remarkably reduced when the cathode is applied to the aluminum cell, the distribution of the horizontal current in the molten aluminum is optimized and the cathode voltage drop is reduced, thus the functions of weakening the vertical fluctuation of the molten aluminum and stabilizing the horizontal movement of the molten aluminum are achieved so that an electrolysis can be stably carried out at a low voltage, and the energy consumption is greatly reduced. The aluminum cell side conductive cathode structure is convenient and simple to process, easy to realize, low in cost and little in influence on service life of an inner linear of the cell.
Description
Technical field
The present invention relates to a kind of aluminium cell, particularly relate to a kind of aluminum cell side conductive cathode structure that reduces the aluminum liquid horizontal electric current.
Background technology
Hall-Ai Lutefa (Hall-H é roult) aluminum electrolysis process is the unique economically viable method of industrial aluminium metallurgy from coming out 100 for many years always.In this technology, electric current flow through successively aluminium guide bar, anode steel jaw, anode, ionogen, aluminium liquid, cathode carbon pieces, rod iron and bus-bar system, on the whole, the turnover of 90 degree has taken place in the route of flowing through of electric current in aluminium liquid, cathode carbon pieces and cathode steel bar, and because the resistance of aluminium liquid is far smaller than cathode carbon pieces, therefore the deflection of electric current occurs in the aluminium liquid layer greatly, thereby causes the generation of the horizontal current component in the aluminium liquid.This horizontal current not only can enlarge markedly vertical magnetic field, and itself and vertical magnetic field interaction, influences the stability of magnetic fluid in the groove.Cathode steel bar all is arranged in cathode bottom in traditional cathode structure of aluminium cell, cause the aluminum liquid horizontal electric current often bigger than normal, and excessive horizontal current causes excessive electromagnetic force, and then cause fluctuation that aluminium liquid is violent and the gross distortion at ionogen-aluminium liquid interface, electrolytic process must carry out under higher pole span condition, causes a large amount of useless energy consumptions thus.
Therefore, for the horizontal current that how to reduce to be present in the aluminium liquid, not only realizing that for the electrolysis of aluminum industry energy-saving and cost-reducing good development is significant, also is simultaneously essence means that solve hydromagnetic stability.Current, structure about reduction aluminum liquid horizontal electric current is the improvement of anticathode this body structure of rod iron or ramming paste substantially, as Chinese patent 200710158715.X the cathode construction that the bottom goes out electricity is proposed, although can to a certain degree reduce horizontal current, but have higher requirement in cell lining structure design and construction, the industrial experiment effect is unsatisfactory at present; Chinese patent 200610200265.1 and Chinese patent 201110089796.9 all propose to realize reducing the horizontal current purpose by changing the cathode steel bar structure, but rod iron structural modification meeting causes the change of rod iron and charcoal interblock stress and conductivity, brings certain safety and cell life hidden danger to cell life.Therefore, under the prerequisite that does not influence bath life, realize that the aluminum liquid horizontal electric current reduces the outbalance that seems.
Summary of the invention
Technical problem to be solved by this invention provides a kind of horizontal current that significantly reduces in the aluminium liquid, be easy to realize low pole span production, reduce bath voltage significantly, and low voltage operating stability is strong, the current efficiency height, comprehensive energy consumption is low, and not to the aluminum cell side conductive cathode structure of cell life with the reduction aluminum liquid horizontal electric current that exerts an influence safely.
In order to solve the problems of the technologies described above, a kind of aluminum cell side conductive cathode structure that reduces the aluminum liquid horizontal electric current provided by the invention, comprise cathode carbon pieces, bottom cathode rod iron and rod iron charcoal paste, the both sides of described cathode carbon pieces are respectively equipped with at least one sidepiece cathode steel bar, and described sidepiece cathode steel bar is stuck with paste by described rod iron charcoal with described bottom cathode rod iron and is connected with described cathode carbon pieces.
The material of described bottom cathode rod iron is consistent with existing conventional cathode rod iron, the height of described bottom cathode rod iron and existing rod iron are consistent or are slightly high, length is elongated or non-elongated, and quantity is that 1 or many bottoms at described cathode carbon pieces are arranged side by side.
Described sidepiece cathode steel bar is elongated or non-elongated, and described sidepiece cathode steel bar is arranged horizontally or is in tilted layout, and described tilt layout is that level height is progressively reduced by center to described cathode carbon pieces end when being in tilted layout.
The cross section of described sidepiece cathode steel bar is Polygons, and the size in described cross section is consistent or change along described sidepiece cathode steel bar length direction.
The Polygons in the cross section of described sidepiece cathode steel bar is rectangle, trapezoidal or trilateral.
Adopt the aluminum cell side conductive cathode structure of the reduction aluminum liquid horizontal electric current of technique scheme, the cathode construction monnolithic case is constant, keep advance electricity and go out power mode consistent with conventional cathode, and integral part and conventional cathode basically identical, include cathode carbon pieces, rod iron charcoal paste, cathode steel bar, its difference is that cathode steel bar quantity and position change to some extent, therefore can not cause redesign and the processing at other positions of aluminium cell except negative electrode, production and installation that can the remarkably influenced cathode portion yet.
The present invention be directed to conventional cathode structure that existing aluminium cell adopts and can in the aluminium liquid layer, form the shortcoming of very big horizontal current, a kind of improvement cathode construction based on the conventional cathode structure that provides, this cathode construction uses bottom cathode rod iron and sidepiece cathode steel bar and cathode carbon pieces to connect and compose, the electric field of whole cathode construction is optimized, thereby significantly reduce the horizontal current in the aluminium liquid, so aluminium liquid and ionogen vertical fluctuation are little when adopting the electric tank working of this structure, be easy to realize low pole span production, make bath voltage reduce significantly, and low voltage operating stability is strong, the current efficiency height, comprehensive energy consumption is low, and cell life and safety is not exerted an influence.
The present invention is owing to adopt said structure, compares with existing cathode construction and different in nature cathode carbon pieces to possess following advantage:
Adopt ordinary steel bar structure cathode structure of aluminium cell, in the minor axis aluminium liquid horizontal current influence bigger, the zone of its maximum generally appears at the position of inclined to one side limit, the centre portion of aluminium liquid layer.According to this kind distributional pattern, among the present invention, owing to used sidepiece cathode steel bar and the bottom cathode rod iron of conduction, therefore optimized the voltage distribution situation in cathode construction inside, the then faster more vertical derivation of easier attraction sidepiece electric current of sidepiece cathode steel bar part, and the electric current of negative electrode sidepiece causes deflection easily owing to bigger apart from the cathode steel bar distance, therefore the present invention has reduced electric current deflection in the horizontal direction from trend, can significantly reduce the horizontal current in the aluminium liquid.Because the minimizing of horizontal current, then the horizontal electromagnetic force of the generation of horizontal current and vertical magnetic field is also littler.Because horizontal electromagnetic force is to cause that the moving major reason of aluminium fluid wave gains public acceptance, so the vertical fluctuation that reduces meeting reduction aluminium liquid of electromagnetic force and the horizontal flow of stable aluminium liquid, then electrolysis can be carried out under lower pole span, and bath voltage can significantly reduce, and reduces the energy consumption of electrolysis of aluminum.
On the other hand, this structure is changed for the charcoal piece and is occurred in charcoal piece inside, and amplitude is less, by ramming paste with sidepiece, bottom rod iron and after cathode carbon pieces is connected, it is as a whole that negative electrode becomes again, therefore the affected hidden danger of cathode inner lining life-span that does not exist all kinds of specially-shaped cathodes to bring.In addition, rod iron and charcoal piece conductive area distribute more even, have avoided the thermal stresses and the hidden danger of generating heat and concentrating in rod iron and negative contact zone territory.Therefore the present invention can guarantee farthest that cell life is unaffected.
In sum, the present invention is a kind of horizontal current that significantly reduces in the aluminium liquid, be easy to realize low pole span production, reduce bath voltage significantly, and low voltage operating stability is strong, the current efficiency height, comprehensive energy consumption is low, and not to the aluminum cell side conductive cathode structure of cell life with the reduction aluminum liquid horizontal electric current that exerts an influence safely.
Description of drawings
Fig. 1 be the present invention at the schematic perspective view of traditional aluminium cell half cathode construction.
Fig. 2 is the schematic perspective view that adopts aluminium cell half cathode construction of elongated and horizontally disposed sidepiece cathode steel bar.
Fig. 3 is the sectional view of Fig. 2.
Fig. 4 is along A-A line sectional view among Fig. 3.
Fig. 5 adopts the schematic perspective view of aluminium cell half cathode construction of elongated and the sidepiece cathode steel bar that is in tilted layout.
Fig. 6 is along C-C line sectional view among Fig. 5.
Fig. 7 is along B-B line sectional view among Fig. 5.
Fig. 8 is the single rod iron in employing bottom, sidepiece is elongated and the aluminium cell of horizontally disposed sidepiece uniform cross section cathode steel bar half cathode construction schematic perspective view.
Fig. 9 is the sectional view of Fig. 8.
Figure 10 is that the edge is along D-D line sectional view among Fig. 9.
Figure 11 is the single rod iron in employing bottom, sidepiece is elongated and the vertical view of aluminium cell half cathode construction of horizontally disposed sidepiece non-constant section cathode steel bar.
Figure 12 is along E-E line sectional view among Figure 11.
Figure 13 is along F-F line sectional view among Figure 11.
Figure 14 is along G-G line sectional view among Figure 11.
Figure 15 is the vertical view of Figure 11.
Figure 16 is the single rod iron in employing bottom, sidepiece is elongated and the side-view of aluminium cell half cathode construction of the sidepiece non-constant section cathode steel bar that is in tilted layout.
Figure 17 is along H-H line sectional view among Figure 16.
Figure 18 is along I-I line sectional view among Figure 16.
Figure 19 is along J-J line sectional view among Figure 16.
Embodiment
Below in conjunction with drawings and Examples to originally being described further.
Embodiment 1:
As Fig. 2, Fig. 3 and shown in Figure 4 be the synoptic diagram of aluminium cell half cathode construction of the elongated and horizontally disposed sidepiece cathode steel bar of employing of the present invention, stick with paste 4 by cathode carbon pieces 1, bottom cathode rod iron 2, sidepiece cathode steel bar 3 and rod iron charcoal and form.In the present embodiment, the total length 3000～4000mm of cathode carbon pieces 1, wide 400～800mm, high 400～700mm; Two parallel dovetail-indents of uniform cross section are driven in cathode carbon pieces 1 bottom, the embedded prismatic elongated or non-elongated bottom cathode rod iron 2 of corresponding every dovetail-indent with it, bottom cathode rod iron 2 wide 50mm～90mm, high 50mm～200mm, its material, processing and installation method are the same with the conventional cathode rod iron; Two sidepieces of cathode carbon pieces 1 all have a uniform cross section dovetail-indent along its length, the embedded prismatic elongated sidepiece cathode steel bar 3 of corresponding every dovetail-indent with it, the cross section of sidepiece cathode steel bar 3 is rectangle, sidepiece cathode steel bar 3 wide 50mm～200mm, high 50mm～200mm, the processing of sidepiece cathode steel bar 3 is carried out according to the size of sidepiece cathode steel bar 3, and concrete technology is consistent with traditional rod iron.Sidepiece cathode steel bar 3 and bottom cathode rod iron 2 are stuck with paste 4 by the rod iron charcoal and are connected with cathode carbon pieces 1.This kind structure makes carbon block structure more sturdy, under the prerequisite that guarantees the bottom liner life-span, make the easier inflow sidepiece of the electric current cathode steel bar 3 of the middle limit portion of cathode carbon pieces 1, thereby reduce the horizontal current in the aluminium liquid significantly, vertical fluctuation and the maintenance level of reduction aluminium liquid flow, improve electrolyzer stability, and significantly reduce voltage, electrolyzer is cut down the consumption of energy.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, cathode construction monnolithic case of the present invention is constant, keep advance electricity and go out power mode consistent with conventional cathode, and integral part and conventional cathode basically identical, include cathode carbon pieces, rod iron charcoal paste, cathode steel bar, therefore its difference is that cathode steel bar quantity and position change to some extent, can not cause redesign and the processing at other positions of aluminium cell except negative electrode, also production and installation that can the remarkably influenced cathode portion.
Embodiment 2:
As Fig. 5, Fig. 6 and shown in Figure 7 be the sectional view of aluminium cell half cathode construction of the elongated and sidepiece cathode steel bar that is in tilted layout of employing of the present invention, stick with paste 4 by cathode carbon pieces 1, bottom cathode rod iron 2, sidepiece cathode steel bar 3 and rod iron charcoal and form.In the present embodiment, the total length 3000mm～4000mm of cathode carbon pieces 1, wide 400mm～800mm, high 400mm～700mm; Cathode bottom is driven two uniform cross section dovetail-indents, the embedded prismatic elongated or non-elongated bottom cathode rod iron 2 of corresponding every dovetail-indent with it, bottom cathode rod iron 2 wide 50mm～90mm, high 50mm～200mm, its material, processing and installation method are the same with the conventional cathode rod iron; Two sidepieces of cathode carbon pieces 1 all have the uniform cross section dovetail-indent of an inclination along its length, the angle of inclination is 5 degree～10 degree, the elongated sidepiece cathode steel bar 3 of the embedded prismatic inclination of corresponding every dovetail-indent with it, the cross section of sidepiece cathode steel bar 3 is trapezoidal, sidepiece cathode steel bar 3 wide 50mm～200mm, high 50mm～200mm, the processing of sidepiece cathode steel bar 3 is carried out according to the size of sidepiece rod iron, and concrete technology is consistent with traditional rod iron.Sidepiece cathode steel bar 3 and bottom cathode rod iron 2 are stuck with paste 4 by the rod iron charcoal and are connected with cathode carbon pieces 1.This kind structure makes carbon block structure sturdy, under the prerequisite that guarantees the bottom liner life-span, make the easier inflow sidepiece of the electric current cathode steel bar 3 of the middle limit portion of cathode carbon pieces 1, and be to derive in vertical mode near the electric current at groove middle part is easier simultaneously, thereby reduce the horizontal current of all directions in the aluminium liquid significantly, vertical fluctuation and the maintenance level of reduction aluminium liquid flow, and improve electrolyzer stability, and significantly reduce voltage, electrolyzer is cut down the consumption of energy.
Embodiment 3:
As Fig. 8, Fig. 9 and shown in Figure 10 be the single rod iron in employing of the present invention bottom, sidepiece is elongated and the aluminium cell of horizontally disposed uniform cross section sidepiece cathode steel bar half cathode construction schematic perspective view and sectional view, stick with paste 4 by cathode carbon pieces 1, bottom cathode rod iron 2, sidepiece cathode steel bar 3 and rod iron charcoal and form.In the present embodiment, the total length 3000mm～4000mm of cathode carbon pieces 1, wide 400mm～800mm, high 400mm～700mm; 1 uniform cross section dovetail-indent is driven in the bottom of cathode carbon pieces 1, the embedded 1 prismatic elongated or non-elongated bottom cathode rod iron 2 of this dovetail-indent, bottom cathode rod iron 2 wide 50mm～90mm, high 50mm～200mm, its material, processing and installation method are the same with the conventional cathode rod iron; Two sidepieces of cathode carbon pieces 1 all have the uniform cross section dovetail-indent of a level along its length, the elongated sidepiece cathode steel bar 3 of the embedded prismatic inclination of corresponding every dovetail-indent with it, the cross section of sidepiece cathode steel bar 3 is trilateral, sidepiece cathode steel bar 3 wide 50mm～200mm, high 50mm～200mm, the processing of sidepiece cathode steel bar 3 is carried out according to the size of sidepiece rod iron, and concrete technology is consistent with traditional rod iron.Sidepiece cathode steel bar 3 and bottom cathode rod iron 2 are stuck with paste 4 by the rod iron charcoal and are connected with cathode carbon pieces 1.This kind cathode construction is sturdy, under the prerequisite that guarantees the bottom liner life-span, make the electric current of different zones in the charcoal piece enter bottom cathode rod iron 2 and sidepiece cathode steel bar 3 respectively, thereby realize reducing significantly the horizontal current of all directions in the aluminium liquid, improve electrolyzer stability, and significantly reduce voltage, electrolyzer is cut down the consumption of energy.
Embodiment 4:
As Figure 11, Figure 12, Figure 13, Figure 14 and shown in Figure 15 be the single rod iron in employing of the present invention bottom, sidepiece is elongated and the aluminium cell of horizontally disposed non-constant section sidepiece cathode steel bar half cathode construction side-view and vertical view, stick with paste 4 by cathode carbon pieces 1, bottom cathode rod iron 2, sidepiece cathode steel bar 3 and rod iron charcoal and form.In the present embodiment, the total length 3000mm～4000mm of cathode carbon pieces 1, wide 400mm～800mm, high 400mm～700mm; 1 uniform cross section dovetail-indent is driven in the bottom of cathode carbon pieces 1, the embedded 1 prismatic elongated or non-elongated bottom cathode rod iron 2 of this dovetail-indent, bottom cathode rod iron 2 wide 50mm～90mm, high 50mm～200mm, its material, processing and installation method are the same with the conventional cathode rod iron; Two sidepieces of cathode carbon pieces 1 all have the non-constant section dovetail-indent of linearity or the nonlinearities change of a level along its length, this dovetail-indent is more shallow near cathode end, then darker near groove center, the elongated sidepiece cathode steel bar 3 of inclination of the embedded non-constant section of corresponding every dovetail-indent with it, the cross section of sidepiece cathode steel bar 3 is rectangle, sidepiece cathode steel bar 3 wide 50mm～200mm, high 50mm～200mm, the processing of sidepiece cathode steel bar 3 is carried out according to the size of sidepiece rod iron, and concrete technology is consistent with traditional rod iron.Sidepiece cathode steel bar 3 and bottom cathode rod iron 2 are stuck with paste 4 by the rod iron charcoal and are connected with cathode carbon pieces 1.This kind cathode construction is sturdy, under the prerequisite that guarantees the bottom liner life-span, make cathode carbon pieces 1 central region be more prone to vertically enter bottom cathode rod iron 2 and sidepiece cathode steel bar 3, thereby realize reducing significantly the horizontal current of all directions in the aluminium liquid, improve electrolyzer stability, and significantly reduce voltage, electrolyzer is cut down the consumption of energy.
Embodiment 5:
As Figure 16, Figure 17, Figure 18 and shown in Figure 19 be the single rod iron in employing of the present invention bottom, sidepiece is elongated and the aluminium cell half cathode construction side-view of the sidepiece non-constant section conductive cathode rod iron that is in tilted layout, stick with paste 4 by cathode carbon pieces 1, bottom cathode rod iron 2, sidepiece cathode steel bar 3 and rod iron charcoal and form.This embodiment except sidepiece cathode steel bar 3 for being in tilted layout, it is the non-constant section dovetail-indent that can be linearity or nonlinearities change that two sidepieces of cathode carbon pieces 1 all have an inclination along its length, the angle of inclination is 5 degree～10 degree, the elongated sidepiece cathode steel bar 3 of inclination of the embedded non-constant section of corresponding every dovetail-indent with it, rest part is consistent with embodiment 4.This embodiment can better realize the reduction of aluminum liquid horizontal electric current, but the rod iron shape changes slightly, and is slightly influential for construction and groove liner life-span.
Claims (5)
1. aluminum cell side conductive cathode structure that reduces the aluminum liquid horizontal electric current, comprise cathode carbon pieces (1), bottom cathode rod iron (2) and rod iron charcoal paste (4), it is characterized by: the both sides of described cathode carbon pieces (1) are respectively equipped with at least one sidepiece cathode steel bar (3), and described sidepiece cathode steel bar (3) is stuck with paste (4) with described bottom cathode rod iron (2) by described rod iron charcoal and is connected with described cathode carbon pieces (1).
2. the aluminum cell side conductive cathode structure of reduction aluminum liquid horizontal electric current according to claim 1, it is characterized in that: the material of described bottom cathode rod iron (2) is consistent with existing conventional cathode rod iron, the height of described bottom cathode rod iron (2) and existing rod iron are consistent or are slightly high, length is elongated or non-elongated, and quantity is that 1 or many bottoms at described cathode carbon pieces (1) are arranged side by side.
3. the aluminum cell side conductive cathode structure of reduction aluminum liquid horizontal electric current according to claim 1 and 2, it is characterized in that: described sidepiece cathode steel bar (3) is for elongated or non-elongated, described sidepiece cathode steel bar (3) is arranged horizontally or is in tilted layout, and described tilt layout is that level height is progressively reduced by center to described cathode carbon pieces (1) end when being in tilted layout.
4. the aluminum cell side conductive cathode structure of reduction aluminum liquid horizontal electric current according to claim 1 and 2, it is characterized in that: the cross section of described sidepiece cathode steel bar (3) is Polygons, and the size in described cross section is consistent or change along described sidepiece cathode steel bar (3) length direction.
5. the aluminum cell side conductive cathode structure of reduction aluminum liquid horizontal electric current according to claim 4, it is characterized in that: the Polygons in the cross section of described sidepiece cathode steel bar (3) is rectangle, trapezoidal or trilateral.
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| CN201310187629.7A CN103243350B (en) | 2013-05-20 | 2013-05-20 | A kind of aluminum cell side conductive cathode structure reducing aluminum liquid horizontal electric current |
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| CN201310187629.7A CN103243350B (en) | 2013-05-20 | 2013-05-20 | A kind of aluminum cell side conductive cathode structure reducing aluminum liquid horizontal electric current |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809202A (en) * | 2020-07-22 | 2020-10-23 | 合肥工业大学 | Cathode steel bar structure for reducing horizontal current of aluminum liquid in aluminum electrolytic cell |
| US11242604B2 (en) | 2016-07-26 | 2022-02-08 | Cobex Gmbh | Cathode assembly for the production of aluminum |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474611A (en) * | 1982-06-23 | 1984-10-02 | Swiss Aluminium Ltd. | Arrangement of busbars for electrolytic reduction cells |
| CN1844467A (en) * | 2006-03-17 | 2006-10-11 | 贵阳铝镁设计研究院 | Method and structure for improving cathode current density of aluminium-electrolytic 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 |
| CN202643856U (en) * | 2012-05-03 | 2013-01-02 | 湖南中大冶金设计有限公司 | Connecting structure of cathode carbon block and cathode steel bars of aluminum electrolytic cell |
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2013
- 2013-05-20 CN CN201310187629.7A patent/CN103243350B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474611A (en) * | 1982-06-23 | 1984-10-02 | Swiss Aluminium Ltd. | Arrangement of busbars for electrolytic reduction cells |
| CN1844467A (en) * | 2006-03-17 | 2006-10-11 | 贵阳铝镁设计研究院 | Method and structure for improving cathode current density of aluminium-electrolytic 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 |
| CN202643856U (en) * | 2012-05-03 | 2013-01-02 | 湖南中大冶金设计有限公司 | Connecting structure of cathode carbon block and cathode steel bars of aluminum electrolytic cell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11242604B2 (en) | 2016-07-26 | 2022-02-08 | Cobex Gmbh | Cathode assembly for the production of aluminum |
| CN111809202A (en) * | 2020-07-22 | 2020-10-23 | 合肥工业大学 | Cathode steel bar structure for reducing horizontal current of aluminum liquid in aluminum electrolytic cell |
| CN111809202B (en) * | 2020-07-22 | 2021-11-23 | 合肥工业大学 | Cathode steel bar structure for reducing horizontal current of aluminum liquid in aluminum electrolytic cell |
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