CN101748443B - Configuration method and structure of aluminum electrolysis cell cathode bus with two-point-end power-on mode - Google Patents
Configuration method and structure of aluminum electrolysis cell cathode bus with two-point-end power-on mode Download PDFInfo
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- CN101748443B CN101748443B CN2008103060600A CN200810306060A CN101748443B CN 101748443 B CN101748443 B CN 101748443B CN 2008103060600 A CN2008103060600 A CN 2008103060600A CN 200810306060 A CN200810306060 A CN 200810306060A CN 101748443 B CN101748443 B CN 101748443B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005868 electrolysis reaction Methods 0.000 title description 7
- 230000005611 electricity Effects 0.000 claims abstract description 55
- 239000004411 aluminium Substances 0.000 claims description 16
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000190022 Pilea cadierei Species 0.000 description 1
- 238000009866 aluminium metallurgy Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000010307 cell transformation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- -1 silver aluminum Chemical compound 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a collocation method and a collocation structure of a cathode bus of an aluminum electrolytic cell. The cathode bus bar at the electricity outlet side does not directly converge into the downstream cell upright bus bar, but flows through the bottom of the downstream cell and then turns to two ends of the electrolytic cell, and returns back to the downstream cell upright bus bar in the direction opposite to the series current. Aiming at the phenomenon that the production operation is difficult due to overhigh vertical magnetic field of the conventional electrolytic cell in a two-end electricity inlet mode, the cathode bus arrangement method and the cathode bus arrangement structure of the conventional electrolytic cell are improved into a configuration mode of a bus turn-back type compensation magnetic field at the electricity outlet side, and the vertical magnetic field of the whole cell is reduced because the turn-back current of the bus at the electricity outlet side is just opposite to the magnetic field generated by the current of the upright post bus.
Description
Technical field:
The present invention relates to 2 of a kind of terminations advances the collocation method and the structure of electric type electric tank cathode bus, belongs to technical field of aluminum electrolysis.
Background technology:
Since Hall dust Shandong aluminium metallurgy method since the earliest occurred, electrolyzer was just towards maximizing and big sense of current develop rapidly.China from the early 1980s, the introduction of the time in the world's advanced level of valiant ends up nailing 160kA prebaked cutting into the middle cell electric technology to build a second electrolysis plant in Guizhou Aluminum Plant; 1985, the introduction of the groove basis, after digestion and continuous improvement, but also the construction of Guizhou Aluminum third electrolysis plant; 1986, also through the introduction of Japanese technology, was established in Baiyin silver aluminum.In the same year, the introduction work of Qinghai Aluminium Plant 160KA electrolyzer is also accomplished in succession.First batch of its general character of large pre-baked cell of these China all is that power mode is advanced in 2 of terminations, and at present, they are still operating as pioneer's grooved of aluminum industry in China.
Along with modern prebaked anode cell continuous advancement in technology, and the further investigation of physical field and the foundation of relevant mathematical model in the electrolytic process, the design of electrolyzer is developed from the CAD direction of experience to science.For bringing bigger economical efficiency, the production strength of current of aluminium cell constantly increases, and according to Faraday's law, when other conditions equated, the magnetic field in the aluminium cell will increase with the increase of electric current.Thereby the magnetic environment of melt is as far as guaranteeing that stably manufactured also becomes more and more important in the electrolyzer.
Through the analog calculation and the production practice of computingmachine, we have known that big face multiple spot advances electric mode and can make in the groove melt flow more even, produce more stablely, are more prone to obtain the good technical index.Therefore, the follow-up electrolyzer of research and development voluntarily all adopts big face multiple spot to advance electric mode from 180KA ~ 400KA.
Yet, as previously mentioned, the 160KA electrolyzer of introducing at China's prebaked anode electrolysis tech starting initial stage, the aggregated capacity in such grooved whole nation reaches 320,000 tons more than at present.Owing to receive technology limitation at that time, all adopt 2 of ends to advance the mode of electricity, as shown in Figure 3, this result who directly brings is that its vertical magnetic field value is very high, thereby has increased the difficulty of production operation, and is difficult to obtain good electrolysis production performance index.
160KA electrolyzer perpendicular field profile can be referring to the Fig. 2 in the Figure of description, and by finding out among Fig. 2, maximum has reached about 90Gs its vertical magnetic field in the bight, this big limitations the further raising of the type electrolyzer index.And the reason that produces so high vertical magnetic field mainly is because a large amount of electric currents passes through in the termination dual-point entry electrolyzer, and the current value of single-point is far longer than the single-point electric current that multiple spot advances electricity, thereby causes vertical magnetic field excessive.And the mode that two riser bus bars residing position in termination adopts traditional electricity input side bus to wear bottom land is difficult to obtain compensation, like Fig. 4.
Summary of the invention:
Technical scheme to be solved by this invention is: provide a kind of and be convenient to obtain good electrolysis production performance index, can effectively solve the collocation method and the corresponding configuration structure of the not enough negative busbar of the field compensation dynamics of advancing electrolyser in 2 of ends, can overcome the deficiency of prior art.
The present invention is achieved in that 2 of terminations enter the bottom that the electricity output side bus of the aluminium cell of power mode is arranged into downstream slot earlier; Turn back out the then bottom of downstream slot is connected with the downstream slot riser bus bar; Make flow through the earlier bottom of downstream slot of electric current in the electricity output side bus, turning back flows into the downstream slot riser bus bar again; The interior current field of electricity output side bus of the downstream slot bottom of flowing through is offset the vertical magnetic field of downstream slot.
The configuration structure of the aluminium electrolytic cell cathode bus of power mode is advanced in 2 of terminations; It comprises upstream slot, electricity output side bus, downstream slot, downstream slot riser bus bar and downstream slot electricity input side bus; The two ends of electricity output side bus are connected with the downstream slot riser bus bar with upstream slot respectively, and the stage casing of electricity output side bus is arranged in the downstream slot bottom; And stage casing and downstream slot electricity input side bus intersection at the electricity output side bus are provided with insulating barrier.
The electricity output side bus that is arranged on the downstream slot bottom is positioned at downstream slot electricity input side bus below.
Be arranged on the asymmetric layout of electricity output side bus of downstream slot bottom.
The electricity output side bus that is arranged on the downstream slot bottom is L type broken line and arranges.
Compared with prior art; The present invention is arranged into the bottom of downstream slot earlier through the electricity output side bus that 2 of terminations is advanced the aluminium cell of power mode; Turn back out the then bottom of downstream slot is connected with the downstream slot riser bus bar; Make flow through the earlier bottom of downstream slot of electric current in the electricity output side bus, turning back flows into the downstream slot riser bus bar again; Because the electricity output side bus is in the process of downstream slot of flowing through and when itself and potline current reverse direction are turned back; The magnetic field that its electric current and riser bus bar electric current produce is just in time opposite; Simultaneously; Since the position of its bus for riser bus bar more near the aluminium liquid layer, thereby cut down vertical magnetic field greatly in four bights of electrolyzer, laid solid foundation for obtaining the good technical index in producing; Its test back design sketch such as Fig. 3 can find out obviously that from Fig. 3 the present invention will have magnetic field peak value (90Gs) now and be reduced to about 45Gs; Stage casing and downstream slot electricity input side bus intersection at the electricity output side bus are provided with insulating barrier, can prevent that like this two groups of buses from contacting; The electricity output side bus that is arranged on the downstream slot bottom is positioned at downstream slot electricity input side bus below, can not break like this and change original electrolyzer one-piece construction, reduces the construction work amount; Be arranged on the asymmetric layout of electricity output side bus of downstream slot bottom, so promptly be convenient to upset existing Distribution of Magnetic Field, be convenient to construction again; The electricity output side bus of downstream slot bottom is L type broken line arranges that L type broken line is arranged and not only is convenient to connect riser bus bar, and because of the electricity output side diameter is bigger, is convenient to complications.Adopt technique scheme simultaneously; Can solve 2 of ends effectively and advance this problem of magnetic field weak effect that electricity brings; Configuration simultaneously is simple, less investment, be prone to implement, and effect is obvious, and the aluminium cell transformation that this method is advanced electric grooved for 2 of ends has positive meaning.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is existing 160KA electrolyzer perpendicular field profile figure;
Fig. 3 advances electrolyser perpendicular field profile figure for improving 2 of rearward end by the present invention;
Fig. 4 is 2 structural representations that advance the electrolyser bus in existing end.
Embodiment:
Embodiments of the invention: as shown in Figure 1; The electricity output side bus 4 that the aluminium cell of power mode is advanced in 2 of terminations is arranged into the bottom of downstream slot 5 earlier; Turn back out the then bottom of downstream slot 5 is connected with downstream slot riser bus bar 3; Make flow through the earlier bottom of downstream slot 5 of electric currents in the electricity output side bus 4, turning back flows into downstream slot riser bus bar 3 again; The electricity output side bus 4 interior current fields of the downstream slot bottom of flowing through are offset the vertical magnetic field of downstream slot 5.
The configuration structure that the aluminium electrolytic cell cathode bus of power mode is advanced in 2 of terminations among the present invention has comprised upstream slot 2, electricity output side bus 4, downstream slot 5, downstream slot riser bus bar 3 and downstream slot electricity input side bus 7; The two ends of electricity output side bus 4 are connected with downstream slot riser bus bar 3 with upstream slot respectively, and the stage casing of electricity output side bus 4 is arranged in downstream slot 5 bottoms; And stage casing and downstream slot electricity input side bus 7 intersections at electricity output side bus 4 are provided with insulating barrier 6.The electricity output side bus 4 of downstream slot bottom is positioned at downstream slot electricity input side bus 7 belows, is the asymmetric broken line of L type and arranges.After adopting technique scheme, its vertical magnetic field will can descend 50% than existing structure, and will be shown in Figure 3 in result such as the Figure of description.
Claims (5)
1. the collocation method of the aluminium electrolytic cell cathode bus of power mode is advanced in 2 of terminations; It is characterized in that: this method is the bottom that the electricity output side bus (4) that the aluminium cell of power mode is advanced in 2 of terminations is arranged into downstream slot (5) earlier; Turn back out the then bottom of downstream slot (5) is connected with downstream slot riser bus bar (3); Make flow through the earlier bottom of downstream slot (5) of electric current in the electricity output side bus (4), turning back flows into downstream slot riser bus bar (3) again; Offset the vertical magnetic field of downstream slot (5) in the magnetic field that electric current in the electricity output side bus (4) of the downstream slot of flowing through (5) bottom is produced.
2. the configuration structure of the aluminium electrolytic cell cathode bus of power mode is advanced in 2 of terminations; It comprises upstream slot (2), electricity output side bus (4), downstream slot (5), downstream slot riser bus bar (3) and downstream slot electricity input side bus (7); The two ends of electricity output side bus (4) are connected with downstream slot riser bus bar (3) with upstream slot (2) respectively, it is characterized in that: the stage casing of electricity output side bus (4) is arranged in downstream slot (5) bottom; And stage casing and downstream slot electricity input side bus (7) intersection at electricity output side bus (4) are provided with insulating barrier (6).
3. 2 configuration structures that advance the aluminium electrolytic cell cathode bus of power mode in a kind of termination according to claim 2 is characterized in that: the electricity output side bus (4) that is arranged on downstream slot (5) bottom is positioned at downstream slot electricity input side bus (7) below.
4. according to 2 configuration structures that advance the aluminium electrolytic cell cathode bus of power mode of claim 2 or 3 described a kind of terminations, it is characterized in that: the asymmetric layout of electricity output side bus (4) that is arranged on downstream slot (5) bottom.
5. according to 2 configuration structures that advance the aluminium electrolytic cell cathode bus of power mode of claim 2 or 3 described a kind of terminations, it is characterized in that: the electricity output side bus (4) that is arranged on downstream slot (5) bottom is L type broken line and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103060600A CN101748443B (en) | 2008-12-09 | 2008-12-09 | Configuration method and structure of aluminum electrolysis cell cathode bus with two-point-end power-on mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103060600A CN101748443B (en) | 2008-12-09 | 2008-12-09 | Configuration method and structure of aluminum electrolysis cell cathode bus with two-point-end power-on mode |
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| Publication Number | Publication Date |
|---|---|
| CN101748443A CN101748443A (en) | 2010-06-23 |
| CN101748443B true CN101748443B (en) | 2012-05-23 |
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| CN2008103060600A Expired - Fee Related CN101748443B (en) | 2008-12-09 | 2008-12-09 | Configuration method and structure of aluminum electrolysis cell cathode bus with two-point-end power-on mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102534682B (en) * | 2010-12-27 | 2015-02-18 | 贵阳铝镁设计研究院有限公司 | Bus configuration method for aluminum electrolysis cell with equidistant current paths |
| RU2678624C1 (en) * | 2017-12-29 | 2019-01-30 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Modular busbar for series of aluminum electrolysis cells |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037747A (en) * | 1988-05-11 | 1989-12-06 | 挪威海德罗公司 | The layout in harmful magnetic field of the electrolytic cell of compensate for lateral configuration |
| CN1051766A (en) * | 1989-10-13 | 1991-05-29 | 艾尔坎国际有限公司 | The busbar arrangement of aluminium cell |
| CN1598069A (en) * | 2004-08-06 | 2005-03-23 | 贵阳铝镁设计研究院 | Asymmetric type tank bottom bus and current distributing style |
| CN2804128Y (en) * | 2005-03-18 | 2006-08-09 | 贵阳铝镁设计研究院 | Structure of preventing magnetic field interfrence between vertical disposition tanks of aluminum electrolyzer |
| CN1834299A (en) * | 2005-03-15 | 2006-09-20 | 贵阳铝镁设计研究院 | Method of preventing magnetic field interference between longitudinal rowed aluminium electrolytic cells |
-
2008
- 2008-12-09 CN CN2008103060600A patent/CN101748443B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037747A (en) * | 1988-05-11 | 1989-12-06 | 挪威海德罗公司 | The layout in harmful magnetic field of the electrolytic cell of compensate for lateral configuration |
| CN1051766A (en) * | 1989-10-13 | 1991-05-29 | 艾尔坎国际有限公司 | The busbar arrangement of aluminium cell |
| CN1598069A (en) * | 2004-08-06 | 2005-03-23 | 贵阳铝镁设计研究院 | Asymmetric type tank bottom bus and current distributing style |
| CN1834299A (en) * | 2005-03-15 | 2006-09-20 | 贵阳铝镁设计研究院 | Method of preventing magnetic field interference between longitudinal rowed aluminium electrolytic cells |
| CN2804128Y (en) * | 2005-03-18 | 2006-08-09 | 贵阳铝镁设计研究院 | Structure of preventing magnetic field interfrence between vertical disposition tanks of aluminum electrolyzer |
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