CN102234817B - Method for lowering electrolytic cell energy consumption by optimizing aluminium electrolysis magnetic field - Google Patents
Method for lowering electrolytic cell energy consumption by optimizing aluminium electrolysis magnetic field Download PDFInfo
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- CN102234817B CN102234817B CN 201110221901 CN201110221901A CN102234817B CN 102234817 B CN102234817 B CN 102234817B CN 201110221901 CN201110221901 CN 201110221901 CN 201110221901 A CN201110221901 A CN 201110221901A CN 102234817 B CN102234817 B CN 102234817B
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- magnetic field
- shielding case
- energy consumption
- electrolyzer
- optimizing
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000005265 energy consumption Methods 0.000 title claims abstract description 22
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 18
- 239000004411 aluminium Substances 0.000 title claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 14
- 230000005294 ferromagnetic effect Effects 0.000 claims description 13
- 238000005457 optimization Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 2
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000003302 ferromagnetic material Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910000889 permalloy Inorganic materials 0.000 claims description 2
- -1 soft just Inorganic materials 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Abstract
The invention discloses a method for lowering electrolytic cell energy consumption by optimizing an aluminium electrolysis magnetic field. The method is characterized in that the method for optimizing the magnetic field comprises the following steps: covering a ferrormagnetic substance shielding cover on a certain section of an electrolytic cell bus or soft band to strengthen or weaken action on the magnetic field in the cell by the certain section of the electrolytic cell bus or soft band. After the magnetic field in the cell is optimized with the method, the aluminium liquid flowing possibility is lowered, the stability of the electrolytic cell is improved, the current efficiency is improved, and the energy consumption of the electrolytic cell is lowered.
Description
Technical field
A kind of method that reduces the electrolyzer energy consumption by optimizing electrolysis of aluminum magnetic field relates to a kind of method that reduces the electrolyzer energy consumption.
Background technology
Energy-saving and emission-reduction are most important things of each industrial circle work of China Today, and electrolytic aluminum is traditional big power consumer, so the energy-saving and emission-reduction of electrolytic aluminum are very important.And the steady running of electrolyzer is the primary prerequisite of electrolytic aluminum energy-saving and emission-reduction.
The Magnetic Field Design of electrolyzer is the important factor that affects electrolyzer stability.The current electrolysis groove is constantly towards the tankage large scale development, and the powerful electric current that passes through on the aluminium cell can produce powerful magnetic field, and the quality of Distribution of Magnetic Field directly has influence on the quality of electrolyzer Flow Field Distribution.Interaction Law of Electric Current in magnetic field and ionogen and the aluminium liquid can produce powerful electromagnetic force, make that ionogen and aluminium liquid circulate, interface fluctuation and protuberance distortion, can produce tremendous influence to the production operation of electrolyzer, life-span, current efficiency and the electrolyzer energy consumption of electrolyzer etc.And after design of electrolysis cells finished, busbar arrangement had been finalized the design, and the impact in electrolyzer magnetic field is also finalized the design almost.How to optimize the magnetic field of electrolyzer, the energy consumption that reduces electrolyzer is the key of electrolytic aluminum energy-saving and emission-reduction work.
Summary of the invention
The objective of the invention is to improve electrolyzer stability by optimizing the magnetic field of electrolyzer, a kind of method that reduces the electrolyzer energy consumption by optimizing electrolysis of aluminum magnetic field is provided.
The objective of the invention is to be achieved through the following technical solutions.
A kind ofly reduce the method for electrolyzer energy consumption by optimizing aluminium electrolysis slot field, the method that it is characterized in that described optimization magnetic field be certain section electrolyzer bus or soft with upper cover on the ferromagnetic substance shielding case to increase or to weaken certain section bus or soft band to the effect of groove internal magnetic field.
Of the present inventionly a kind ofly reduce the method for electrolyzer energy consumption by optimizing aluminium electrolysis slot field, the cross-sectional shape of used ferromagnetic substance shielding case is linear, square, circle, ellipse, rectangle or Polygons when it is characterized in that described optimization magnetic field.
A kind of method by optimizing aluminium electrolysis slot field reduction electrolyzer energy consumption of the present invention, used ferromagnetic substance shielding case is the shielding case of an end opening when it is characterized in that described optimization magnetic field.
A kind of method by optimizing aluminium electrolysis slot field reduction electrolyzer energy consumption of the present invention, the shielding case of a used end opening when it is characterized in that described optimization magnetic field, its openings of sizes is adjustable.
Of the present inventionly a kind ofly reduce the method for electrolyzer energy consumption by optimizing aluminium electrolysis slot field, the material that it is characterized in that described ferromagnetic substance shielding case be plain carbon stool, pure iron, soft just, the ferromagnetic materials such as silicon steel, cobalt, nickel, iron-nickel alloy, permalloy, Mn-Zn ferrite, ferronickel ferrite.
A kind of method by optimizing aluminium electrolysis slot field reduction electrolyzer energy consumption of the present invention is by optimizing the magnetic field of electrolyzer, reducing the electrolyzer energy consumption thereby improve electrolyzer stability.When optimizing magnetic field, by analyzing electrolyzer section bus or soft band to the impact of groove internal magnetic field, then to ferromagnetic substance shielding case on this section bus or the soft band cover increasing or to weaken this section bus or soft band to the effect of groove internal magnetic field, thereby optimize the groove internal magnetic field.After optimizing the groove internal magnetic field, can reduce metal wave in the groove, improve electrolyzer stability, improve current efficiency.
Description of drawings
Fig. 1 is local bus shield synoptic diagram in present method.
Fig. 2 is a kind of shielding case of present method and the sectional view of bus.
Fig. 3 is the another kind of shielding case of present method and the sectional view of bus.
Fig. 4 is the another kind of shielding case of present method and the sectional view of bus.
Fig. 5 is the another kind of shielding case of present method and the sectional view of bus.
Fig. 6 is the another kind of shielding case of present method and the sectional view of bus.
Fig. 7 is the another kind of shielding case of present method and the sectional view of bus.
Fig. 8 is the another kind of shielding case of present method and the sectional view of bus.
Fig. 9 is the another kind of shielding case of present method and the sectional view of bus.
Figure 10 is the another kind of shielding case of present method and the sectional view of bus.
Figure 11 is the another kind of shielding case of present method and the sectional view of bus.
Figure 12 is the another kind of shielding case of present method and the sectional view of bus.
Figure 13 is the another kind of shielding case of present method and the sectional view of bus.
Figure 14 is the another kind of shielding case of present method and the sectional view of bus.
Figure 15 is the another kind of shielding case of present method and the sectional view of bus.
Figure 16 is a kind of shielding case of embodiment 1 and the sectional view of bus.
Embodiment
A kind of method that reduces the electrolyzer energy consumption by optimizing aluminium electrolysis slot field, when certain section bus of shielding or soft band, at first bus or soft band are done the insulation processing, determine the shielding case size according to bus or soft band size, shielding case can be close to megohmite or keep certain distance with megohmite.The thickness of determining shielding case according to magneticstrength and the shield degree of need shieldings and the selection of magnetoconductivity material.The openings of sizes of ferromagnetic substance shielding case and direction can be adjusted according to groove internal magnetic field situation.When shielding, can adopt the form of multilayer screen to be optimized magnetic field.During multilayer screen, the inside and outside material that adopts the same magnetic conductance also can adopt the form of different magnetoconductivity material combinations.A kind of method by optimizing aluminium electrolysis slot field reduction electrolyzer energy consumption is characterized in that improving electrolyzer stability by optimizing electrolyzer magnetic field, reduces the electrolyzer energy consumption.
Embodiment 1
Certain 280kA of factory electrolyzer, its large bus of A face section negative electrode and termination bus play booster action to the groove internal magnetic field, for weakening these buses to the impact of groove internal magnetic field, we install the ferromagnetic substance shielding case additional in the corresponding position, install shielding case additional and carry out bus insulation work before.This section busbar cross-section is of a size of 350*650mm, and our shielding case of use is of a size of 390*700mm herein, and opening end ferromagnetic substance length is 30mm.According to electrolyzer Distribution of Magnetic Field situation and needs, selecting magnetic permeability herein is that 12000um, thickness are the ferromagnetic substance material making shielding case (Figure 15) of 2mm.
Effect before and after table 1 shielding
| ? | Measuring point 1 | |
Measuring point 3 |
| Before the shielding (Gs) | 170.4 | 168.3 | 168.5 |
| After the shielding (Gs) | 140.8 | 142.5 | 141.7 |
Claims (3)
1. one kind is reduced the method for electrolyzer energy consumption by optimizing aluminium electrolysis slot field, the method that it is characterized in that described optimization magnetic field be certain section electrolyzer bus or soft with upper cover on the ferromagnetic substance shielding case to increase or to weaken certain section bus or soft band to the effect of groove internal magnetic field; Used ferromagnetic substance shielding case is the shielding case of an end opening during its described optimization magnetic field; The shielding case of used end opening during its described optimization magnetic field, its openings of sizes is adjustable.
2. according to claim 1ly a kind ofly reduce the method for electrolyzer energy consumption by optimizing aluminium electrolysis slot field, the cross-sectional shape of used ferromagnetic substance shielding case is linear, circular, ellipse or Polygons when it is characterized in that described optimization magnetic field.
3. according to claim 1ly a kind ofly reduce the method for electrolyzer energy consumption by optimizing aluminium electrolysis slot field, the material that it is characterized in that described ferromagnetic substance shielding case be plain carbon stool, pure iron, soft just, silicon steel, cobalt, nickel, iron-nickel alloy, permalloy, Mn-Zn ferrite, ferronickel ferrite ferromagnetic material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221901 CN102234817B (en) | 2011-08-04 | 2011-08-04 | Method for lowering electrolytic cell energy consumption by optimizing aluminium electrolysis magnetic field |
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|---|---|---|---|
| CN 201110221901 CN102234817B (en) | 2011-08-04 | 2011-08-04 | Method for lowering electrolytic cell energy consumption by optimizing aluminium electrolysis magnetic field |
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| Publication Number | Publication Date |
|---|---|
| CN102234817A CN102234817A (en) | 2011-11-09 |
| CN102234817B true CN102234817B (en) | 2013-03-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2888630Y (en) * | 2005-09-23 | 2007-04-11 | 河南中孚实业股份有限公司 | Separated synchronous interlocked large-current DC loaded switch group |
| CN101255567B (en) * | 2007-12-17 | 2010-08-25 | 中国铝业股份有限公司 | Method for optimizing aluminium electrolysis slot field |
| CN201220320Y (en) * | 2008-07-04 | 2009-04-15 | 贵阳铝镁设计研究院 | Cathode steel bar welding device |
| CN102296326B (en) * | 2011-06-07 | 2014-03-12 | 河南中孚实业股份有限公司 | Magnetic shielding aluminum electrolytic cell |
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