CN101463493A - Current strengthening mode for bypass rectifying small unit - Google Patents
Current strengthening mode for bypass rectifying small unit Download PDFInfo
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- CN101463493A CN101463493A CNA2007102032242A CN200710203224A CN101463493A CN 101463493 A CN101463493 A CN 101463493A CN A2007102032242 A CNA2007102032242 A CN A2007102032242A CN 200710203224 A CN200710203224 A CN 200710203224A CN 101463493 A CN101463493 A CN 101463493A
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Abstract
The invention discloses a mode for rectifying the intensified current of a small machine set by a shunt circuit of an electrolytic bath. The electrolytic bath comprises a rectifier unit (1) which is added in the side wall of a potroom. A rectification electrical incoming busbar (2) is connected with an original series busbar (3). The electrical current passes through the entire series electrolytic path (4), and then passes through a rectifier unit (1) reconnected by a loop busbar (5). The current intensity of the electrolytic aluminium manufacture is increased and the production scale is enlarged by using the civil structure of an electrolysis workshop, electrolysis bath, and devices in a workshop on the situation of not changing the original rectifying configuration and the unit capacity in the mode. Meanwhile, the mode is used for testing the intensified current of part of the electrolytic baths in an electrolysis series, thus putting forward applicable operating condition and manufacturing experiences for the upsizing development of the electrolytic baths in the enterprise next electrolysis manufacture.
Description
Technical field:
The present invention relates to a kind of mode that increases electrolytic cell currents intensity and do not change existing rectifier structure form, belong to the aluminum smelting technology technical field.
Background technology:
After the last century the nineties, aluminium electrolytic industry improves output in order to generate profit maximization by current strengthening, has become a kind of general strategy.It can reduce a ton aluminium cost, raises labour productivity, and improves the economic interests of enterprise.Along with the raising of three researchs of aluminium cell and computer-controlled development and electrolyzer use raw material quality, brought technical support for the raising potline current.In recent years, improving day by day on the aluminium industrial technology makes that the anodic current density of aluminium cell is significantly brought up to 0.78～0.9A/cm in the world
2Between, and at home, except that part small pre-calcining groove (85KA, 90KA), the anodic current density of most of prebaked-anode type cell still rests on 0.7～0.74A/cm
2About, this has directly caused the economic inefficiencies of enterprise.Therefore, research improves the scheme and the measure of electrolytic series electric current, with the labour productivity of raising enterprise and the economic interests of enterprise, has become the important topic that state-owned technology is gone abroad and exploited market.
On the basis of existing prebaked cell for aluminum-reduction production strength of current, make full use of remaining space, improving strength of current is current strengthening, it is the convenient road of increasing production and practising economy, can maximally utilise the production potential of electrolyzer and auxiliary facility thereof by current strengthening, improve the rate of utilization of electrolyzer and auxiliary facility thereof, under the prerequisite that does not increase capital construction investment, improve the throughput of electrolytic series, cut the waste, reach the purpose of increasing production and practising economy.
But the producer that is engaged in Aluminum Electrolysis Production in China owing to be subjected to the restriction in original rectifier unit capacity, place etc., can't promote electric current on existing serial run channel at present, obtains more production capacity.And in case rectifier unit is transformed, will bring the massive losses that the series long period stops to produce again, the cost of for this reason paying is very big.This is that many factories are unacceptable.
Summary of the invention:
The technical problem to be solved in the present invention is: the mode that the little unit current strengthening of a kind of bypass rectifying is provided, make and drop under the situation of fund seldom, the electrolyzer current strengthening of original low current operation is obtained more production capacity and not to the series transformation that has a power failure for a long time.
The present invention constitutes like this: the side at potroom increases by 1 rectifier unit 1, and this rectifier unit can utilize the space between road outside potroom and the workshop or two cell rooms to settle.Rectification is entered the lower floor of goddess of lightning's line 2 by two floors of potroom and is entered in the workshop and be connected with former series of busbars 3.When former serial ordinary production, can carry out the construction of rectifier unit, rectification bus, after construction is finished, by power failure, with rectification bus 2 and of the first platform trough front end welding of former series of busbars 3 in series to the series short period of time.Behind electric current all electrolyzers 4 (perhaps part groove), take back the rectifier unit 1 of increase by loop bus 5 by whole series.So, the strength of current that series of grooves (or part groove) puts into operation can increase considerably, and reaches the purpose that increases production capacity.
Owing to adopted technique scheme, the present invention utilizes the equipment in original cell room civil engineering structure, electrolyzer and workshop, under the situation that does not change configuration of original rectifier and unit capacity, improved Aluminum Electrolysis Production strength of current, enlarged industrial scale.This is an important direction especially for the medium and small sized enterprises of financial strain.Simultaneously, the present invention also can carry out the test of current strengthening to the part electrolyzer in the electrolytic series, for enterprise's development that electrolyzer maximizes in the electrolysis production from now on, finds out suitable working specification and knowhow.
Description of drawings:
Fig. 1 is a whole serial bypass rectifying current strengthening structure iron of the present invention;
Fig. 2 is a part electrolyzer bypass rectifying current strengthening structure iron in the electrolytic series of the present invention.
Embodiment:
Embodiments of the invention: the transformation of certain electrolytic aluminium factory, its original electrolytic series adopts the 160KA prebaked-anode type cell, and series is installed 258 electrolyzers altogether, 10.93 ten thousand tons of original design annual output primary aluminum.This electrolytic aluminium factory utilizes the space of road outside potroom and the workshop to carry out the transformation of the little unit current strengthening of bypass.Newly-increased rectifier unit 1 output DC stream 30KA.Spend about 6 tons heavy goddess of lightning's line 2 that advances electric current is inserted on the current enter bus 3 of former series, incorporate electric current 20KA into, electrolyzer 4 electric currents are enhanced to 180KA, take back in the newly-increased rectifier unit by about 8 tons heavy loop bus 5 again.Whole improvement expenses is as follows:
By after transforming, the production capacity of potroom 1.37 ten thousand tons have been improved, annual about 2,740 ten thousand yuan of the enterprise profit that increases.
Claims (4)
- The mode of the little unit current strengthening of [claim 1] a kind of electrolyzer bypass rectifying, it comprises rectifier unit (1), it is characterized in that: rectifier unit (1) is set up the side at potroom, rectification is advanced goddess of lightning's line (2) and is connected with former series of busbars (3), behind the electrolyzer (4) of electric current by whole series, the rectifier unit (1) that takes back by loop bus (5).
- The device of the little unit current strengthening of [claim 2] electrolyzer bypass rectifying according to claim 1 is characterized in that: rectifier unit (1) is arranged on outside potroom and the workshop between road or two cell rooms.
- The device of the little unit current strengthening of [claim 3] electrolyzer bypass rectifying according to claim 1 is characterized in that: rectification bus (2) and the first platform trough front end welding of former series of busbars (3) in series.
- The device of the little unit current strengthening of [claim 4] electrolyzer bypass rectifying according to claim 1 is characterized in that: electric current is by all electrolyzers (4) or the part electrolyzer of whole series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102032242A CN101463493A (en) | 2007-12-19 | 2007-12-19 | Current strengthening mode for bypass rectifying small unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102032242A CN101463493A (en) | 2007-12-19 | 2007-12-19 | Current strengthening mode for bypass rectifying small unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101463493A true CN101463493A (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102032242A Pending CN101463493A (en) | 2007-12-19 | 2007-12-19 | Current strengthening mode for bypass rectifying small unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101463493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114308A (en) * | 2011-11-16 | 2013-05-22 | 沈阳铝镁设计研究院有限公司 | Aluminum electrolysis tank compensation bus power supply rectification set |
-
2007
- 2007-12-19 CN CNA2007102032242A patent/CN101463493A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114308A (en) * | 2011-11-16 | 2013-05-22 | 沈阳铝镁设计研究院有限公司 | Aluminum electrolysis tank compensation bus power supply rectification set |
| CN103114308B (en) * | 2011-11-16 | 2015-04-15 | 沈阳铝镁设计研究院有限公司 | Aluminum electrolysis tank compensation bus power supply rectification set |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090624 |