CN101831671A - Novel cathode conductive structure for aluminum electrolysis cell - Google Patents
Novel cathode conductive structure for aluminum electrolysis cell Download PDFInfo
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- CN101831671A CN101831671A CN200910118931A CN200910118931A CN101831671A CN 101831671 A CN101831671 A CN 101831671A CN 200910118931 A CN200910118931 A CN 200910118931A CN 200910118931 A CN200910118931 A CN 200910118931A CN 101831671 A CN101831671 A CN 101831671A
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Abstract
The invention provides a novel cathode conductive structure for an aluminum electrolysis cell, which is mainly applied to prebaking a structure for a cathode lining of the aluminum electrolysis cell and producing the aluminum electrolysis cell. The adopted technical scheme is that: a cathode steel bar structure at the bottom of a cathode carbon block in a conventional general cathode carbon block steel bar set is eliminated, and the cathode carbon block of which the end part is provided with a metal conductive joint is arranged on a heat-insulating and leakage-proof material layer of the aluminum electrolysis cell and in an aluminum liquid electrolysis melting bath in a side furnace wall. Therefore, the cathode carbon block can be heated in a large area by using the aluminum liquid in the electrolysis melting bath, the specific resistance of the cathode carbon block is lowered, the conduction current surface area of the cathode carbon block contacted with the aluminum liquid is enlarged and the conductive current density of the cathode aluminum liquid is enhanced. Simultaneously, aluminum liquid magnetic rotation current is blocked by using the cathode carbon block, so horizontal fluctuation between the aluminum liquid and an electrolyte interface is reduced, the effects of reducing electrolysis electrode distance and setting low voltage are achieved, the service life of the electrolysis cell is prolonged and the aim of reducing power consumption on the production of the electrolytic aluminum can be fulfilled.
Description
Technical field
Novel cathode conductive structure for aluminum electrolysis cell is mainly used in the production of the structure and the electrolytic aluminum of pre-calcining electrolytic cell.
Background technology
Now with general cathode conductive structure for aluminum electrolysis cell by electrolyzer Steel Sheel, the bottom antiseep bed of material, sidepiece furnace wall, make thickener, cathode block rod iron group firm by ramming and build institute by laying bricks or stones and constitute.In the aluminium cell Steel Sheel, on the thermal insulation layer antiseep bed of material, the middle part of surrounding place side portion furnace wall is adopted between the adjacent two carbon pieces to stick with paste between seam to make firm by ramming to connect and is filled, and a plurality of cathode block rod iron groups is made firm by ramming the horizontal conductive layer of whole cathode block of building by laying bricks or stones.In the electrolysis production process, the aluminium liquid in the electrolytic aluminium liquid molten bath and the cathode carbon block of electrolytic bath conductive layer constitute a negative electrode electrical conductor.The electrolytic aluminium liquid that electrolysis is produced; the effect of conduction and protection cathode block is not only arranged in aluminium electrolysis process; the adjusting electrolyzer temperature is also arranged; keep electrolyzer thermal equilibrium; heated cathode carbon piece; improve the effect of its conductivity, existing with general cathode structure of aluminium cell, mainly there is following shortcoming:
1, the aluminium liquid in the electrolyzer places the cathode block upper surface, and temperature head is bigger between the cathode carbon block of electrolytic bath top and the bottom, and cathode inner lining overall thermal balance is difficult to realize, causes self resistance of cathode block higher, and the bottom land volts lost raises;
2, the aluminium liquid as the negative electrode electrical conductor only contacts with cathode block liner upper surface in the electrolyzer molten bath, and the conductive area of cathode block is less, causes cathode block liner one-piece construction electrical efficiency low, and electrolytic current density is difficult to improve;
3, connect between cathode carbon block of electrolytic bath bottom and the cathode steel bar to adopt to stick with paste and make combination firm by ramming because the physicochemical property difference of material, cause cathode can at the bottom of volts lost too high;
4, two carbon piece junctions easily produce aluminium liquid and electrolytical seepage; Cause the cathode steel bar fusing that places cathode block bottom and the generation of bakie accident, adopt between the cathode block to stick with paste between seam and make connection firm by ramming, not only make complex process firm by ramming, and the groove cathode inner lining is shorter work-ing life.
5, the cathode carbon block of electrolytic bath upper surface is set to horizontal plane, in process of production, and the aluminium liquid on cathode lining of electrolytic bath top, under the effect in magnetic field, can produce aluminum liquid magnetic rotational flow, thereby cause the setting of ionogen pole span to increase, bath voltage is set and is strengthened, and causes the technology power consumption of electrolytic aluminum to increase.
Summary of the invention
In order to overcome the above-mentioned shortcoming that now general cathode structure of aluminium cell exists, when design of electrolysis cells, make full use of the characteristics that the electrical and thermal conductivity performance of producing into aluminium liquid self in the electrolysis bath is better than other materials, improve the electric conductivity of cathode block, reduce the negative impact that the aluminum liquid magnetic rotational flow fluctuation is set the electrolysis pole span, reduce resistance value and the volts lost and the power consumption loss of aluminum cell cathode inner lining, prolong the work-ing life of aluminium cell, reduce the making production and the maintenance cost of cathode structure of aluminium cell, maximize in conjunction with aluminum cell structure, the development trend of functional diversities, with existing new material technology, the present invention designs novel cathode conductive structure for aluminum electrolysis cell.
Novel cathode conductive structure for aluminum electrolysis cell is by the electrolyzer Steel Sheel, the cathode block structure that the bottom thermal-insulating leakage-resistant leakage bed of material, sidepiece furnace wall body and end have the metallic conduction joint forms, its technical characterictic is: the end of cathode block and metallic conduction joint, be configured in portion's sidepiece furnace wall of aluminium cell Steel Sheel inboard, the cathode block lower bottom part in the aluminium liquid electrolysis molten bath is not provided with cathode steel bar.
According to technique scheme, the end structure of the cathode block of novel cathode conductive structure for aluminum electrolysis cell has the metallic conduction joint.
According to technique scheme, the novel cathode conductive structure for aluminum electrolysis cell end structure has the two ends of the cathode block of metallic conduction joint to build by laying bricks or stones in the sidepiece furnace wall, the bottom of the cathode block in the electrolytic aluminium liquid molten bath can be built by laying bricks or stones at the electrolyzer thermal-insulating leakage-resistant and be leaked on the bed of material, form cathode block upper surface projection, thermal-insulating leakage-resistant leaks the recessed concavo-convex platform trough formula cathode conductive structure of bed of material upper surface, and aluminium liquid is arranged in the groove of adjacent two carbon pieces in the electrolytic process.
According to technique scheme, the novel cathode conductive structure for aluminum electrolysis cell end structure has the two ends of the cathode block of metallic conduction joint to build by laying bricks or stones in the sidepiece furnace wall, lower part of cathode block in the electrolytic aluminium liquid molten bath can be built by laying bricks or stones in the electrolyzer thermal-insulating leakage-resistant leaks the bed of material, form cathode block upper surface projection, the concavo-convex platform trough formula cathode conductive structure that antiseep bed of material upper surface is recessed has aluminium liquid in the groove of adjacent two carbon pieces in the electrolytic process.
According to technique scheme, build by laying bricks or stones in the sidepiece furnace wall of aluminium cell the metallic conduction joint of novel cathode conductive structure for aluminum electrolysis cell and the end of cathode block, the bottom of electrolytic aluminium liquid molten bath inner cathode carbon piece and electrolyzer thermal-insulating leakage-resistant leak and the circulation of aluminium liquid can be set at interval between the bed of material, be provided with the interval that aluminium liquid can circulate up and down between the adjacent cathode block sidepiece, the circulation of aluminium liquid is arranged in the ring week of cathode block.
According to technique scheme, the thermal-insulating leakage-resistant of novel cathode conductive structure for aluminum electrolysis cell leaks the bed of material and is provided with the cathode block support rim, has the bottom of the cathode block of metallic conduction joint to set up on the cathode block support rim end structure.
According to technique scheme, the cathode block section of novel cathode conductive structure for aluminum electrolysis cell can be a rectangle, or circular, and cathode block can be a monoblock along elongated direction, or about therefrom separated being divided into two.
According to technique scheme, novel cathode conductive structure for aluminum electrolysis cell can construct tongue and groove and circular hole on cathode block.
According to technique scheme, the metallic conduction joint at the cathode block end structure of novel cathode conductive structure for aluminum electrolysis cell, its metallic conduction joint can carry out crimping with the conduction fished joint with fishbolt at the outside surface of cathode block end and be connected, also available metal conducting bolt and cathode block end directly are solidly connected forever, or connect with conducting ring.
Novel cathode conductive structure for aluminum electrolysis cell, owing to cancelled cathode steel bar, reduced the bottom land volts lost when Aluminium Electrolysis, aluminium liquid in the electrolyzer bath can heat the cathode block big area, make the cathode block resistivity decreased, the conduction current surface-area that causes cathode block to contact with aluminium liquid strengthens, and improves the conductive current density of negative electrode aluminium liquid; Utilize cathode block that aluminum liquid magnetic rotational flow is taken blocking effect simultaneously, reduce the level fluctuation between aluminium liquid and the electrolyte interface, reach and reduce electrolysis pole span and low voltage set effect, prolonged the work-ing life of electrolyzer, can realize reducing the purpose of Aluminum Electrolysis Production power consumption.
Description of drawings
In conjunction with the embodiments and accompanying drawing, then more clear to the understanding of novel cathode conductive structure for aluminum electrolysis cell characteristics.
Fig. 1: the structure section synoptic diagram of an embodiment of novel cathode conductive structure for aluminum electrolysis cell
Fig. 2: the structure section synoptic diagram of second embodiment of novel cathode conductive structure for aluminum electrolysis cell
Fig. 3: the structure section synoptic diagram of the 3rd embodiment of novel cathode conductive structure for aluminum electrolysis cell;
Fig. 4: above-mentioned three embodiment represent the aluminium cell schematic cross-section of the novel cathode conductive structure for aluminum electrolysis cell of cathode block structure.
Fig. 5: a kind of section is the cathode block of circle and the synoptic diagram of end metallic conduction joint design
Fig. 6: the sectional drawing that is Fig. 5
Fig. 7: a kind of section is the synoptic diagram of orthogonal cathode block and end metallic conduction joint design
Fig. 8: the sectional drawing that is Fig. 7
Fig. 9: the orthographic plan that is Fig. 7
Among the above-mentioned figure shown in the sequence number:
1 cathode block, 2 end metallic conduction joints, 3 electrolyzer Steel Sheels, 4 bottom thermal-insulating leakage-resistants leak the bed of material, 5 sidepiece furnace wall bodies, 6 aluminium liquid molten baths, 7 support rims, 8 big bus conducting connecting parts, 9 metallic conduction fished joints, 10 clamp stud, 11 metallic conduction rings, 12 metallic conduction bolts.
Embodiment
Novel cathode conductive structure for aluminum electrolysis cell is to improve design on existing general aluminum cell cathode inner lining structure and material foundation, and its construction brick-building art still can be undertaken by the requirement and the standard of existing general lining structure of aluminium electrolytic bath.
As shown in Figure 1, in embodiment one, the two ends of the cathode block in the novel cathode conductive structure for aluminum electrolysis cell (1) have and are configured with the metallic conduction joint (2) that is connected with the big bus of negative electrode and big bus conducting connecting part (8), the part of the both ends of cathode block (1) and metallic conduction joint (2) and big bus connecting piece (8) is constructed in the sidepiece furnace wall of building by laying bricks or stones in electrolyzer Steel Sheel (3), be in the bottom of the cathode block in the electrolyzer aluminium liquid molten bath and following bottom thermal-insulating leakage-resistant and leak the bed of material (4) height at intervals, quite the aluminium liquid in the electrolysis molten bath surrounds cathode block, and cathode block interts in the middle of aluminium liquid.Aluminium liquid can circulate in the cathode carbon block of electrolytic bath bottom.
As shown in Figure 2, in embodiment two, novel cathode conductive structure for aluminum electrolysis cell for the fracture that prevents cathode block middle part and cursory can bottom heat-preservation and anti-leakage layer (4) go up and cathode block between construct cathode block support rim (7), be used for fixing cathode block (1).For the thermal stresses of the length direction that reduces cathode block with strengthen the contact area of aluminium liquid and cathode block, cathode block can be disconnected, about being divided into two sections, the two ends that will have a cathode block conducting metal joint are constructed respectively and are built by laying bricks or stones in the sidepiece furnace wall of electrolyzer both sides.
As shown in Figure 3, in embodiment three, the two ends of the cathode block in the novel cathode conductive structure for aluminum electrolysis cell (1) and cathode block metallic conduction joint (2) are constructed in the sidepiece furnace wall of building the electrolyzer both sides by laying bricks or stones respectively, the bottom of cathode block directly is configured in the bottom thermal-insulating leakage-resistant and leaks on the bed of material, shown in four cathode blocks (1) at Fig. 4 middle part, leave certain aluminium liquid gap between two cathode blocks (1), the bottom of cathode block (1) and the antiseep bed of material (4) are configured to cathode block (1) projection mutually, the side bottom antiseep bed of material (4) recessed, the concavo-convex grooved cathode block (1) of aluminium liquid and the conductive structure of aluminium liquid are arranged in the groove.
As shown in Figure 3, in embodiment three, the two ends of novel cathode conductive structure for aluminum electrolysis cell cathode block (1) and metallic conduction joint (2) are constructed respectively in the sidepiece furnace wall of building the electrolyzer both sides by laying bricks or stones (5), lower part of cathode block (1) can directly be configured in the bottom thermal-insulating leakage-resistant and leak in the bed of material, as Fig. 4 left side four cathode blocks (1) shown in, leave certain aluminium liquid gap between two cathode blocks (1), the upper surface of the upper surface of cathode block (1) and the antiseep bed of material (4) is configured to the cathode block projection mutually, antiseep bed of material upper surface (4) is recessed between the carbon piece of both sides, and the concavo-convex grooved cathode block (1) of aluminium liquid and the conductive structure of aluminium liquid are arranged in the groove.
As Fig. 6 cathode block shown in Figure 8 section can be the square type, also can be circular, can also be designed to trapezoidal.
Shown in Figure 3 as Fig. 7, can aluminium liquid opening be set at the cathode block middle part, or aluminium liquid flow-through grooves can be opened in cathode block top.
As shown in Figure 5, play excessively be connected cathode block (1) the end metallic conduction joint (2) of effect of cathode block (1) end and the big bus of electric tank cathode, can adopt metallic conduction ring (11) to be connected, can adopt between metallic conduction ring (11) and the cathode block (1) to be threaded with cathode block (1).
As shown in Figure 5, play cathode block (1) end and the cathode block end metallic conduction joint (2) that the big bus of electric tank cathode excessively is connected and acts on, can adopt metallic conduction bolt (12) to be connected, shown in Fig. 5 left end with cathode block (1).
Shown in Figure 9 as Fig. 7, play excessively the be connected cathode block end metallic conduction joint (2) of effect of cathode block (1) end and the big bus of electric tank cathode, can adopt in the punching of cathode block end, use metallic conduction clamping plate (9) to clamp cathode block again and construct with clamp stud (10) fastening mode.
The metallic conduction joint (2) of cathode block (1) end can be configured to the form that directly is connected with the big bus of negative electrode, also can go up the mode that adopts welding processing to go out bus conducting connecting part (8) at cathode block end metallic conduction joint (2) the big bus of cathode block and negative electrode is connected.
Can be coated with between the two of conducting metal and cathode block and spread conductive resin, to reduce the interface in conjunction with resistance.
Claims (9)
1. novel cathode conductive structure for aluminum electrolysis cell is by electrolyzer Steel Sheel (3), cathode block (1) structure that the bottom thermal-insulating leakage-resistant leakage bed of material (4), sidepiece furnace wall body (5) and end have metallic conduction joint (2) forms, its technical characterictic is: cathode block (1) end structure has metallic conduction joint (2), end and metallic conduction joint (2) with cathode block (1), be configured in the inboard portion's sidepiece furnace wall (5) of aluminium cell Steel Sheel (3), cathode block (1) lower bottom part in the aluminium liquid electrolysis molten bath (6) is not provided with cathode steel bar.
2. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: the end structure of cathode block (1) has metallic conduction joint (2).
3. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: end structure has the two ends of the cathode block (1) of metallic conduction joint (2) to build by laying bricks or stones in sidepiece furnace wall (5), the bottom of the cathode block (1) in the electrolytic aluminium liquid molten bath (6) can be built by laying bricks or stones at the electrolyzer thermal-insulating leakage-resistant and be leaked on the bed of material (4), form cathode block (1) upper surface projection, thermal-insulating leakage-resistant leaks the recessed concavo-convex platform trough formula cathode conductive structure of the bed of material (4) upper surface, and aluminium liquid is arranged in the groove of adjacent two carbon pieces in the electrolytic process.
4. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: end structure has the two ends of the cathode block (1) of metallic conduction joint (2) to build by laying bricks or stones in sidepiece furnace wall (5), lower part of cathode block (1) in the electrolytic aluminium liquid molten bath (6) can be built by laying bricks or stones in the electrolyzer thermal-insulating leakage-resistant leaks the bed of material (4), form cathode block (1) upper surface projection, the concavo-convex platform trough formula cathode conductive structure that antiseep bed of material upper surface (4) is recessed has aluminium liquid in the groove of adjacent two carbon pieces in the electrolytic process.
5. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: build by laying bricks or stones in the sidepiece furnace wall (2) of aluminium cell the end of metallic conduction joint (2) and cathode block (1), the bottom of electrolytic aluminium liquid molten bath (6) inner cathode carbon piece (1) and electrolyzer thermal-insulating leakage-resistant leak and the circulation of aluminium liquid can be set at interval between the bed of material (4), be provided with the interval that aluminium liquid can circulate up and down between adjacent cathode block (1) sidepiece, the circulation of aluminium liquid is arranged in the ring week of cathode block (1).
6. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: thermal-insulating leakage-resistant leaks the bed of material (4) and is provided with cathode block support rim (7), has the bottom of the cathode block (1) of metallic conduction joint (2) to set up on cathode block support rim (7) end structure.
7. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: cathode block (1) section can be a rectangle, or circular, and the elongated direction of cathode block (1) can be a monoblock, or about therefrom separated being divided into two.
8. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: can construct tongue and groove and circular hole on the cathode block.
9. according to claim 1 novel cathode conductive structure for aluminum electrolysis cell, its technical characterictic is: at the metallic conduction joint (2) of cathode block (1) end structure, its metallic conduction joint (2) can carry out crimping with conduction fished joint (9) with fishbolt (10) at the outside surface of cathode block (2) end and be connected, also available metal conducting bolt (12) directly is solidly connected forever with cathode block (1) end, or connects with conducting ring (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910118931A CN101831671A (en) | 2009-03-09 | 2009-03-09 | Novel cathode conductive structure for aluminum electrolysis cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910118931A CN101831671A (en) | 2009-03-09 | 2009-03-09 | Novel cathode conductive structure for aluminum electrolysis cell |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465321A (en) * | 2010-11-10 | 2012-05-23 | 高德金 | Aluminum electrolytic tank cathode conducting apparatus |
| CN103205775A (en) * | 2013-04-27 | 2013-07-17 | 郑州轻冶科技有限公司 | Horizontal current-feed aluminum electrolysis cell electrode |
| CN108301020A (en) * | 2018-02-28 | 2018-07-20 | 高德金 | A kind of novel aluminium electrolysis cell shell structure |
| CN108642525A (en) * | 2018-06-05 | 2018-10-12 | 新疆大学 | A kind of aluminium-carbon composite cathode aluminium cell |
| CN108642524A (en) * | 2018-06-05 | 2018-10-12 | 新疆大学 | A kind of aluminium-carbon composite cathode aluminium electrolytic cell cathode |
| CN109402671A (en) * | 2018-12-29 | 2019-03-01 | 宁俊傑 | A kind of aluminium electrolysis cathode slot of the homogeneous conducting medium of contacting surface linking |
-
2009
- 2009-03-09 CN CN200910118931A patent/CN101831671A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465321A (en) * | 2010-11-10 | 2012-05-23 | 高德金 | Aluminum electrolytic tank cathode conducting apparatus |
| CN102465321B (en) * | 2010-11-10 | 2016-08-03 | 高德金 | Aluminum electrolytic tank cathode conducting apparatus |
| CN103205775A (en) * | 2013-04-27 | 2013-07-17 | 郑州轻冶科技有限公司 | Horizontal current-feed aluminum electrolysis cell electrode |
| CN103205775B (en) * | 2013-04-27 | 2015-04-15 | 郑州轻冶科技有限公司 | Horizontal current-feed aluminum electrolysis cell electrode |
| CN108301020A (en) * | 2018-02-28 | 2018-07-20 | 高德金 | A kind of novel aluminium electrolysis cell shell structure |
| CN108642525A (en) * | 2018-06-05 | 2018-10-12 | 新疆大学 | A kind of aluminium-carbon composite cathode aluminium cell |
| CN108642524A (en) * | 2018-06-05 | 2018-10-12 | 新疆大学 | A kind of aluminium-carbon composite cathode aluminium electrolytic cell cathode |
| CN109402671A (en) * | 2018-12-29 | 2019-03-01 | 宁俊傑 | A kind of aluminium electrolysis cathode slot of the homogeneous conducting medium of contacting surface linking |
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Application publication date: 20100915 |