CN102534682A - Bus configuration method for aluminum electrolysis cell with equidistant current paths - Google Patents
Bus configuration method for aluminum electrolysis cell with equidistant current paths Download PDFInfo
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- CN102534682A CN102534682A CN2010106072791A CN201010607279A CN102534682A CN 102534682 A CN102534682 A CN 102534682A CN 2010106072791 A CN2010106072791 A CN 2010106072791A CN 201010607279 A CN201010607279 A CN 201010607279A CN 102534682 A CN102534682 A CN 102534682A
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- bus
- electrolyzer
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- negative busbar
- cathode
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- 238000005868 electrolysis reaction Methods 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052782 aluminium Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
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Abstract
The invention discloses a bus configuration method for an aluminum electrolysis cell with equidistant current paths. A bus of an electrolysis cell (7) comprises a cathode soft bus (1), a current inlet side cathode bus (2), a cell bottom through bus (3), a cell side bus (4), a current outlet cathode bus (5) and downstream cell column buses (6), wherein 50% of current in the electrolysis cell flows out through the cathode soft bus (1) at the current inlet side, respectively flows into the current inlet side cathode bus (2) or the cell bottom through bus (3), and respectively converges into the four downstream cell column buses (6) through the cell side bus (4); and 50% of current also flows out through the cathode soft bus (1) at the current outlet side, and respectively converges into the four downstream cell column buses (6) through the current outlet cathode bus (5). A large cross section is adopted in the current inlet side cathode bus and the cell side bus of the electrolysis cell, and a small cross section is adopted in the current outlet side cathode bus of the electrolysis cell. According to the bus configuration method disclosed by the invention, stable electrolysis cell production process and higher current efficiency are guaranteed by adopting current path equidistance bus configuration and changing the cross section and current quantity of the bus.
Description
Technical field
The present invention relates to a kind of technical field of aluminum cell current feedway, be specifically related to the bus current configuration on every side of a kind of large-scale aluminum electrolytic cell groove.
Background technology
Along with the development of China's aluminium industrial production technology, the potline current intensity of modern large-scale aluminum electrolytic cell increases just day by day, and according to the description of Faraday's law, when other conditions equated, magnetic field will increase with the increase of electric current.And the electromagnetic force that the melt Interaction Law of Electric Current produces in the magnetic field that the production electric current of electrolyzer produces and the electrolyzer makes in the groove melt circulation quicken, and causes liquid aluminum generation protuberance, deflection and fluctuation, in addition possibly influence electrolyzer can not ordinary production.Therefore in order to realize the stable of electrolyzer magnetic fluid; Require on the busbar around the groove influence electrolyzer production stable important factor---groove internal magnetic field distribution character (requires magnetic field value little; Gradient is little) become even more important; And must accomplish also that in the design of bus section (electric physical field) bus-bar system various piece distribution of current is even, and inhomogeneous to prevent because of electrolyzer anode and cathode distribution of current, make groove internal magnetic field distribution curve produce drift; Cause the interface of melt in the electrolyzer to be fluctuateed, have a strong impact on the ordinary production of electrolyzer.
In the large-scale design of giving the roasting groove, because the needs of engineering and reducing investment outlay, will consider that usually two row's electrolyzers produce series as one, and two row's electrolyzers can not be at a distance of too far away.Therefore around electrolytic bath, in the busbar system design, must consider the current affects of adjacent row slot, thereby make electrolyzer flue side and to go out the magneticstrength of aluminium side compensation different, institute's strength of current of walking is also different.With the electrolyzer medullary ray is the boundary; The left and right sides of electricity input side bus and electricity output side bus is as adopting identical busbar arrangement and specification; Not only can cause the field compensation dynamics not enough, and can produce the bias current phenomenon, change the flow condition of interior magnetic properties of groove and melt; Cause electrolyzer stability to wreck, bring very big harm to production operation.
Summary of the invention
The technical problem that the present invention will solve is; Provide a kind of current path equidistant method for configuring bus bar of aluminum electrolytic bath,, produce the bias current phenomenon to overcome the electrolyzer magnetic fluid instability that prior art exists; Cause electrolyzer stability to wreck, bring deficiencies such as very big harm to production operation.
The present invention is achieved in that the bus of electrolyzer comprises that cathode soft bus, electricity input side negative busbar, bottom land walk bus, groove side bus, electricity output side negative busbar, downstream slot riser bus bar; In the electrolyzer～50% electric current; Cathode soft bus through electricity input side flows out; Flow into electricity input side negative busbar or bottom land respectively and walk bus; Import 4 root post buses of downstream slot again through the groove side bus respectively, also through the electric current of cathode soft bus outflow～50%, also import 4 root post buses of downstream slot behind the process negative busbar of electricity output side respectively at the electricity output side bus.
The negative busbar of electrolyzer electricity input side and groove side bus adopt big section, and make the intermediate column bus of the current direction downstream slot at electricity input side electrolyzer two ends; The termination riser bus bar of electrolyzer intermediary current direction downstream slot; The negative busbar of electrolyzer electricity output side adopts light section, and makes the termination riser bus bar of the current direction downstream slot at electricity output side electrolyzer two ends; The intermediate column bus of electrolyzer intermediary current direction downstream slot.
The section that the negative busbar of electrolyzer electricity input side and groove side bus adopt is 500cm
2～2000cm
2, the section that the negative busbar of electrolyzer electricity output side adopts is 50cm
2～500cm
2
The electricity output side negative busbar adopts horizontal folding or vertical folding mode.
When electrolyzer is produced; Electrolyzer gets into the 4 root post buses of this groove respectively to galvanic current from the upper reaches, and electric current enters on the anode large bus bar of groove superstructure through riser bus bar, is redistributed to respectively to organize anode; Flow through then melt dielectric substrate, aluminium liquid layer in the groove; And behind the cathode carbon pieces, cathode steel bar, import the electricity input side negative busbar or bottom land is walked bus through electricity input side cathode soft bus with the cathode steel bar welding, import 4 root post buses of downstream slot more respectively through the groove side bus; Also flow out at the electricity output side bus, through also importing 4 root post buses of downstream slot behind the negative busbar of electricity output side respectively through cathode soft bus.
In above-described formation, 4 root post buses are for waiting electric current distribution means, and the negative busbar of electricity input side and groove side bus adopt big section, and make the intermediate column bus of the current direction downstream slot at electricity input side electrolyzer two ends; The termination riser bus bar of electrolyzer intermediary current direction downstream slot.And the negative busbar of electricity output side adopts light section, makes the termination riser bus bar of the current direction downstream slot at electricity output side electrolyzer two ends; The intermediate column bus of electrolyzer intermediary current direction downstream slot is to reach the purpose of current balance type.
The present invention compares with original cell technologies; Adopt the equidistant busbar arrangement of current path, the weak compensation of negative busbar bottom land; Simultaneously through changing bus height, cross section and the magnitude of current; To reach best electricity, magnetic, the fluid characteristics relation of matching, make large pre-baked cell obtain rational groove internal magnetic field and distribute and stable melt flow field, thereby guarantee stablizing and higher current efficiency of electrolyzer production process.In addition in this negative busbar allocation plan, the bus bar when all negative busbars are ordinary production, short-circuit busbar when being short circuit again, and during with ordinary production electric current move towards identical.This is not only minimum to the influence on system operation of vicinity electrolyzer when single electrolyzer stops groove, and has saved the bus consumption.
Characteristics of the present invention are: through the equidistant busbar arrangement of current path; The weak compensation of negative busbar bottom land; The riser bus bar geometric ratio is advanced; Adopt multilayer bus symmetrical arrangements into and out of electric side negative busbar, the electricity output side negative busbar also adopts the mode of bus horizontal folding or vertical folding to increase it to schemes such as downstream slot riser bus bar distances.
Description of drawings
Fig. 1 is a synoptic diagram of the present invention.
Embodiment
Embodiments of the invention: the bus of electrolyzer 7 comprises that cathode soft bus 1, electricity input side negative busbar 2, bottom land walk bus 3, groove side bus 4, electricity output side negative busbar 5, downstream slot riser bus bar 6; The electric current of electrolyzer 7 interior～50%; Cathode soft bus 1 through electricity input side flows out; Flow into electricity input side negative busbar 2 or bottom land respectively and walk bus 3; Import 4 root post buses 6 of downstream slot again through groove side bus 4 respectively, also through the electric current of electricity output side cathode soft bus 1 outflow～50%, also import 4 root post buses 6 of downstream slot behind the process negative busbar 5 of electricity output side respectively at the electricity output side bus.
The negative busbar of electrolyzer electricity input side and groove side bus adopt big section, and make the intermediate column bus of the current direction downstream slot at electricity input side electrolyzer two ends; The termination riser bus bar of electrolyzer intermediary current direction downstream slot; The negative busbar of electrolyzer electricity output side adopts light section, and makes the termination riser bus bar of the current direction downstream slot at electricity output side electrolyzer two ends; The intermediate column bus of electrolyzer intermediary current direction downstream slot.
The section that the negative busbar of electrolyzer electricity input side and groove side bus adopt is 500cm
2～2000cm
2, the section that the negative busbar of electrolyzer electricity output side adopts is 50cm
2～500cm
2
The electricity output side negative busbar adopts horizontal folding or vertical folding mode, is pleated sheet structure like electricity output side negative busbar 5.
When electrolyzer is produced; The electricity input side 4 root post buses 6 of galvanic current this groove of electrolyzer entering from the upper reaches; Electric current enters on 2 groups of anode large bus bars of groove superstructure through waiting electric current 4 root post buses; Then through 16 groups of anodes flow through again melt dielectric substrate, aluminium liquid layer in the groove; And behind the 20 groups of cathode carbon pieces, 20 groups of cathode steel bars, import electricity input side negative busbar 2 through 20 groups of cathode soft bus 1 or 1 bottom land is walked bus 3 with the cathode steel bar welding at electricity input side, import 4 root post buses 6 of downstream slot more respectively through 2 side channel sidepiece buses 4; Import electricity output side negative busbar 6 at electricity output side through 20 groups of cathode soft bus with the cathode steel bar welding, the negative busbar of electricity output side also imports 4 root post buses 6 of downstream slot respectively through bus horizontal folding or vertical folding.More than each section negative busbar and downstream slot riser bus bar respectively through being weldingly connected.
Claims (4)
1. equidistant method for configuring bus bar of aluminum electrolytic bath of current path; It is characterized in that: the bus of electrolyzer ⑺ comprises that cathode soft bus ⑴, electricity input side negative busbar ⑵, bottom land walk bus ⑶, groove side bus ⑷, electricity output side negative busbar ⑸, downstream slot riser bus bar ⑹; In the electrolyzer ⑺～50% electric current; Cathode soft bus ⑴ through electricity input side flows out; Flow into electricity input side negative busbar ⑵ or bottom land respectively and walk bus ⑶; Import 4 root post bus ⑹ of downstream slot again through groove side bus ⑷ respectively, also through the electric current of cathode soft bus ⑴ outflow～50%, also import 4 root post bus ⑹ of downstream slot behind the process negative busbar ⑸ of electricity output side respectively at the electricity output side bus.
2. according to the equidistant method for configuring bus bar of aluminum electrolytic bath of the said current path of claim 1; It is characterized in that: the negative busbar of electrolyzer electricity input side and groove side bus adopt big section, and make the intermediate column bus of the current direction downstream slot at electricity input side electrolyzer two ends; The termination riser bus bar of electrolyzer intermediary current direction downstream slot; The negative busbar of electrolyzer electricity output side adopts light section, and makes the termination riser bus bar of the current direction downstream slot at electricity output side electrolyzer two ends; The intermediate column bus of electrolyzer intermediary current direction downstream slot.
3. according to claim 1 or the equidistant method for configuring bus bar of aluminum electrolytic bath of 2 said current paths, it is characterized in that: the section that the negative busbar of electrolyzer electricity input side and groove side bus adopt is 500cm
2～2000cm
2, the section that the negative busbar of electrolyzer electricity output side adopts is 50cm
2～500cm
2
4. according to the equidistant method for configuring bus bar of aluminum electrolytic bath of the said current path of claim 1, it is characterized in that: the electricity output side negative busbar adopts horizontal folding or vertical folding mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010607279.1A CN102534682B (en) | 2010-12-27 | 2010-12-27 | Bus configuration method for aluminum electrolysis cell with equidistant current paths |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010607279.1A CN102534682B (en) | 2010-12-27 | 2010-12-27 | Bus configuration method for aluminum electrolysis cell with equidistant current paths |
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| CN102534682A true CN102534682A (en) | 2012-07-04 |
| CN102534682B CN102534682B (en) | 2015-02-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014014373A1 (en) * | 2012-07-17 | 2014-01-23 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Busbar arrangement for aluminium electrolysers with a longitudinal position |
| CN104674303A (en) * | 2013-12-02 | 2015-06-03 | 贵阳铝镁设计研究院有限公司 | Testing potroom busbar configuration structure |
| CN105603457A (en) * | 2015-12-23 | 2016-05-25 | 中南大学 | Cathode bus-bar configuration method of ultra-large aluminum electrolytic cell |
| CN107557814A (en) * | 2017-09-07 | 2018-01-09 | 中南大学 | A kind of aluminium electrolytic cell cathode bus connected mode for optimizing field uniformity and device |
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2010
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014014373A1 (en) * | 2012-07-17 | 2014-01-23 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Busbar arrangement for aluminium electrolysers with a longitudinal position |
| RU2548352C2 (en) * | 2012-07-17 | 2015-04-20 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Bus arrangement of lengthways located aluminium electrolysers |
| US9896773B2 (en) | 2012-07-17 | 2018-02-20 | United Company RUSAL Engineering and Technology Centre LLC | Busbar arrangement for aluminum electrolysers with a longitudinal position |
| CN104674303A (en) * | 2013-12-02 | 2015-06-03 | 贵阳铝镁设计研究院有限公司 | Testing potroom busbar configuration structure |
| CN105603457A (en) * | 2015-12-23 | 2016-05-25 | 中南大学 | Cathode bus-bar configuration method of ultra-large aluminum electrolytic cell |
| CN105603457B (en) * | 2015-12-23 | 2018-03-09 | 中南大学 | A kind of negative busbar collocation method of ultra-large type aluminium cell |
| CN107557814A (en) * | 2017-09-07 | 2018-01-09 | 中南大学 | A kind of aluminium electrolytic cell cathode bus connected mode for optimizing field uniformity and device |
| CN107557814B (en) * | 2017-09-07 | 2019-02-01 | 中南大学 | A kind of aluminium electrolytic cell cathode bus connection type optimizing field uniformity and device |
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| CN102534682B (en) | 2015-02-18 |
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