CN201473601U - Conductive structure of cathode of aluminum electrolysis bath - Google Patents
Conductive structure of cathode of aluminum electrolysis bath Download PDFInfo
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- CN201473601U CN201473601U CN2009201575481U CN200920157548U CN201473601U CN 201473601 U CN201473601 U CN 201473601U CN 2009201575481 U CN2009201575481 U CN 2009201575481U CN 200920157548 U CN200920157548 U CN 200920157548U CN 201473601 U CN201473601 U CN 201473601U
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Abstract
The utility model relates to a conductive structure of a cathode of an aluminum electrolysis bath, which is applied to the construction and the production of the aluminum electrolysis bath. Because a carbon metal conductive connection component is connected with a metal conductive line of the cathode at the middle lower part of a carbon block of the cathode by a through hole of the carbon block of the cathode, the metal conductive line of the cathode is connected with a big bus of the cathode, and current is directly conducted from the middle lower part of the carbon block to the surface of the upper part of the carbon block, the structure has the advantages of small horizontal current fluctuation of aluminum liquid between the cathode and an anode in the electrolysis bath, uniform distribution of vertical current, low voltage at the bottom of the bath, small resistance value of the structure, little reactive power consumption, high conductive efficiency, small deformation of the side part of a bath casing, high stability degree of the heat balance of the electrolysis bath, stable shape of a molten pool of electrolytic aluminum liquid, long service life and period of the electrolysis bath and the like, is applied to the production of electrolytic aluminum and can lower the power consumption of the electrolytic aluminum.
Description
Technical field: cathode conductive structure for aluminum electrolysis cell of the present invention, application and the structure of the cathode conductive structure of pre-calcining electrolytic cell and the production of pre-calcining electrolytic cell.
Technical background: existing general aluminum cell cathode inner lining conductive structure is built by laying bricks or stones to make firm by ramming to build by laying bricks or stones on intravital sidepiece furnace wall of aluminium cell box hat and bottom thermal insulation layer by a plurality of cathode block rod iron groups and is formed; Cathode steel bar is made firm by ramming with ramming paste and is built that composite construction forms cathode block rod iron group in the cathode steel bar groove that cathode block bottom processes along carbon block length direction by laying bricks or stones, the two side ends of cathode block rod iron group is built by laying bricks or stones in the sidepiece furnace wall in electrolyzer, its length direction is extended and horizontally disposed being configured on the thermal insulation layer to electrolyzer length centerline direction by the both sides furnace wall, the two ends of cathode steel bar by carbon piece end the sidepiece furnace wall and the window on the sidepiece Steel Sheel of electrolyzer carbon piece end extend to outside the electrolyzer, be connected with the big bus of the negative electrode that is arranged in the electrolyzer outside portion.Thisly be inserted into the cathode block inner bottom part by carbon piece end sidepiece Steel Sheel and sidepiece furnace wall, in electrolyzer, conduct electricity, the aluminum cell cathode inner lining conductive structure of balance cathode current distribution, have following shortcoming and defect by cathode steel bar:
One: the conductive profile portion of cathode block and cathode steel bar ecto-entad is even, causes the electric current distribution perpendicular to the horizontal plane direction that is imported by anode in the electrolyzer inhomogeneous, and aluminum liquid horizontal generation bias current changes irregular in the electrolyzer thorax.
Its two: cathode block, both thermal expansivity of cathode steel bar are different, substructure together, ability that the absorption of thermal stresses is discharged is different, and not only cathode steel bar easily deforms, and influence iron carbon and contacts conductivity, can also cause the sidepiece distortion of electrolytic bath shell, influence thermal equilibrium.
Its three: adopt ramming paste to connect its resistance aluminium between cathode block and the cathode steel bar and voltage drop value higher, structural conductive efficient is low, causes the structural resistance consumption to increase.
Its four: cathode block and cathode steel bar along height and the conduction of length direction apart from different, not only make the electric current distribution of electric tank cathode inhomogeneous, but also make that the electric current distribution of cathode surface of electrolyzer is lower, and be difficult to improve, cause electrolyzer efficient lower.
Summary of the invention: advance electric above-mentioned shortcoming and its deficiency of quasi-complement for the negative electrode conduction that overcomes existing aluminum cell cathode inner lining conductive structure from the cathode carbon block of electrolytic bath side end, spy of the present invention provides a kind of new aluminum electrolytic cell bottom electricity entered type cathode electricity conduction structure technical scheme.
Cathode conductive structure for aluminum electrolysis cell is by the cathode block of building by laying bricks or stones on aluminium cell Steel Sheel inner thermal insulating layer. and carbon metal transfer conducting connecting part and plain conductor are formed, its technical scheme is: lower through-hole on the cathode block internal structure has, carbon metallic conduction web member is connected with the prefabricated cathodic metal conducting wire that is configured in the heat-preservation and anti-leakage layer of electric tank cathode charcoal piece bottom by its through hole.
According to technique scheme: in the prefabricated antiseep side that is configured in the electrolyzer of road in cathodic metal conducting wire, and be connected with the big bus of negative electrode by the heat-preservation and anti-leakage layer of cathode block lower bottom part face and the Steel Sheel of electrolyzer sidepiece or bottom.
According to technique scheme: the bottom is conducted electricity and is connected in the terminals of cathodic metal conducting wire and carbon metallic conduction web member and the cathode carbon pieces, is configured with cathodic metal and conducts electricity end-fitting at the line end place that is connected of cathodic metal conducting wire and carbon metallic conduction web member and cathode carbon pieces.
According to technique scheme: carbon metallic conduction web member and cathode carbon pieces conduct electricity when being connected at the cathodic metal conducting wire end-fitting with pre-heat-preservation and anti-leakage layer in electrolyzer, through hole by cathode carbon pieces can connect with bolt, or the through hole by cathode carbon pieces connects with the mode of casting conducting metal liquid, in the cathode carbon pieces through hole carbon metal connecting piece above be filled with ramming paste antiseep material.
According to technique scheme: the cathodic metal conducting wire can be adopted in parallel in aluminium cell in the heat-preservation and anti-leakage layer or placed in-line electrically conducting manner conducts electricity with cathode carbon pieces and is connected, and the cathodic metal conducting wire can adopt shape or annealed copper wire connection to construct to assemble.
According to technique scheme: the shape of the horizontal plane of monolithic cathode block in electrolyzer can be rectangle, circle and square; Cathode block can carry out parallel, square crossing layout along the big generatrix direction of electrolyzer in the electrolysis tank furnace; Cathode block can be arranged to a monoblock or be divided into several sections arrange in corresponding mutually both sides furnace wall; Make firm by ramming in a down-to-earth manner with making thickener firm by ramming in gap between the cathode block, between cathode block and the sidepiece furnace wall; Between the upper surface of each cathode block, the discrepancy in elevation should be configured to concavo-convex platform trough shape between ramming paste and the cathode block upper surface.
According to technique scheme: in the heat-preservation and anti-leakage layer, the outer setting of cathodic metal conducting wire has the hard heat-insulating protective casing in aluminium cell.
According to technique scheme: in aluminium cell, move towards the prefabricated hard heat-insulating protective casing of having buried underground by cathodic metal conductor wire rood in advance in the heat-preservation and anti-leakage layer; one end of hard heat-insulating protective casing links to each other with the last lower through-hole of cathode carbon pieces; another is constructed earlier with big bus coupling end and shuts; employing is from the forging type of cathode carbon pieces through hole casting metals liquid in the hard heat-insulating protective casing; once construct cathodic metal conducting wire and carbon metal connecting piece, and conduct electricity with cathode carbon pieces structure and to be connected.
According to technique scheme: be configured with electrolyzer thermal equilibrium adjustable pipe in the aluminum electrolytic cell bottom thermal insulation layer, the two ends of thermal equilibrium adjustable pipe are connected with the electrolyzer Steel Sheel.
Cathode conductive structure for aluminum electrolysis cell of the present invention, be applied to the structure and the production of aluminium cell, because with carbon metallic conduction web member, through hole by cathode block, middle and lower part at cathode carbon pieces is connected with the cathodic metal conducting wire that links to each other with the big bus of negative electrode, directly from the upper face conduction current of carbon piece middle and lower part to the carbon piece, it is little that this structure has between electrolyzer inner cathode and anode the aluminum liquid horizontal fluctuation of current, vertical current distribution portion is even, the bottom land loss of voltage, and the structural resistance value is little, idle power consumption is few, the electrical efficiency height, the distortion of pot shell sidepiece is little, electrolyzer thermal equilibrium degree of stability height, the electrolytic aluminium liquid melting pool shape is stable, advantages such as the electrolyzer cycle in work-ing life is long are applied to the production of electrolytic aluminum, can reduce the power consumption of electrolytic aluminum.
Description of drawings:
The technical scheme of cathode conductive structure for aluminum electrolysis cell of the present invention and characteristics accompanying drawings and embodiment understand, and what then show is more clear.Wherein
Fig. 1 is: the embodiment 1 cathode carbon pieces facade cut-away view of cathode conductive structure for aluminum electrolysis cell,
Fig. 2 is: the sectional side view of Fig. 1.
Fig. 3 is: cathode conductive structure for aluminum electrolysis cell embodiment 2 cathode carbon pieces facade cut-away views,
Fig. 4 is: the sectional side view of Fig. 3.
Fig. 5 is: the partial cutaway schematic of cathode conductive structure for aluminum electrolysis cell embodiment 3.
Fig. 6 is: the partial cutaway schematic of cathode conductive structure for aluminum electrolysis cell embodiment 4.
Fig. 7 is: the partial cutaway schematic of cathode conductive structure for aluminum electrolysis cell embodiment 5.
Fig. 8 is: the partial cutaway schematic of cathode conductive structure for aluminum electrolysis cell embodiment 6.
Fig. 9 is: the side cutaway view in cathode conductive structure for aluminum electrolysis cell embodiment 6 technological processs.
Figure 10 is: the side cutaway view of cathode conductive structure for aluminum electrolysis cell embodiment 6
Figure 11 is: the side cutaway view of cathode conductive structure embodiment 7 at the bottom of the aluminium cell.
Figure 12 is: the floor map that cathode conductive structure embodiment 7 cathode carbon pieces and conduction connect at the bottom of the aluminium cell
Shown in its figure: 1. cathode block, 2. charcoal piece through hole, 3. cathodic metal conducting wire, 4. end-fitting, 5. protective casing, 6. carbon metallic conduction web member, 7. heat-preservation and anti-leakage layer, 8. sidepiece furnace wall, 9. Steel Sheel, the 10. big bus of negative electrode, 11. ramming pastes, 12. fishbolts, 13. tongue and grooves, 14. thermal equilibrium adjustable pipes, 15. Steel Sheel insulation coverings, 16. aluminium liquid, 17. casting metals.
Embodiment:
Cathode conductive structure for aluminum electrolysis cell is that the furnace wall of existing general cathode block rod iron group through side end is being connected with the big bus of Steel Sheel and negative electrode, behind the along continuous straight runs conduction current, again to the improvement and the innovation of the cathode inner lining structure of the upper face conduction current of cathode block.
Its core technology is: have up and down communicating aperture (2) be used for the carbon metal in the internal structure of cathode block (1) and cross electrical connector (6), be connected with the prefabricated cathodic metal conducting wire (3) that is configured in electric tank cathode charcoal piece (1) the bottom heat-preservation and anti-leakage layer (7) by its through hole (2), realize the conducting function of the big bus of negative electrode (10) cathode blocks (1).For the vertical current density distribution that makes cathode surface is even, cathode conductive structure for aluminum electrolysis cell adopts multiple spot face conductive profile, and the metallic substance high with electric conductivity upwards conducts electricity from cathode carbon pieces (1) bottom.Overcome and traditional in the Π type steel bar trough of cathode carbon pieces (1) bottom, carry out level with cathode steel bar and conduct electricity existing drawback, realize that the vertical current density distribution of cathode carbon pieces upper face is even.
Embodiment 2: as shown in Figure 3, Figure 4, as shown in Figure 1 and Figure 2, the internal structure of cathode carbon pieces cathode carbon pieces (1) has last lower through-hole (2), cathodic metal conducting wire (3) end-fitting (4) of cathode carbon pieces (1) and bottom, adopt conducting metal fishbolt (12) to connect, it is big that its hole can be configured to upper hole, and the concave station type that underpunch is little is beneficial to fishbolt (12) and is connected with the clamping conduction of cathodic metal wire termination joint (4) cathode blocks (1) of bottom.
Embodiment 4: as shown in Figure 6; embodiment 4 is identical with the essential structure structure of embodiment 3; its difference is bottom, cathodic metal conducting wire (3) one end, and the protective casing (5) that passes antiseep thermal insulation layer (7) is connected with the big bus of negative electrode (10) with bottom of electrolytic tank Steel Sheel (9).The material of cathodic metal conducting wire (3) is a shape.
Embodiment 5: as shown in Figure 7, embodiment 5 is identical with the essential structure structure of embodiment 3, its difference is: carbon metallic conduction web member (6) and end-fitting (4), adopt the mode of connection of casting metal (17), and cathode blocks (1) is configured to clamp conduction and connects.
Embodiment 6: as Fig. 8, Fig. 9, shown in Figure 10, cathodic metal conducting wire (3) and carbon metallic conduction web member (6) are connected with cathode carbon pieces (1), can adopt the method for casting once to construct and form.
Its method is: the trend of pressing cathodic conductive wire road (3) earlier, be embedded in the heat-preservation and anti-leakage layer (7) protective casing (5) is prefabricated, the end that protective casing (5) is connected with big bus (10) extends to outer and big bus (10) junction of electrolyzer Steel Sheel (9), shuts earlier temporarily; With the through hole (2) of cathode carbon pieces (1) bottom mouthful be connected (as shown in Figure 9) with the upper port of protective tube (5); employing is in the upper end of the through hole (2) of cathode carbon pieces (1); the casting technique of casting conducting metal liquid in cathode carbon pieces through hole (2) and protective casing (5) once conducts electricity cathodic metal conducting wire (3) be connected with cathode carbon pieces (1) with carbon metallic conduction web member (6) and is configured in (as Fig. 8, shown in Figure 10).Through hole (2) on cathode carbon pieces during casting (1) can be considered casting pressing port and venting port.
Embodiment 7: as Figure 11, shown in Figure 12: cathodic metal conducting wire (3), conducting electricity when being connected with cathode carbon pieces (1), the distribution situation of the vertical density of electric current that imports according to anode, can adopt in parallel or placed in-line electrically conducting manner with the big bus of negative electrode (10), conduct electricity with cathode carbon pieces (1) by cathodic metal conducting wire (3) and to be connected.
The shape of the horizontal plane of monolithic cathode block (1) in electrolyzer can be rectangle, circle and square; Cathode block (1) can carry out parallel, square crossing layout along the big bus of electrolyzer (10) direction in electrolyzer; Cathode block (1) can be arranged to a monoblock or be divided into several sections arrange in corresponding mutually both sides furnace wall (8); Make firm by ramming in a down-to-earth manner with making thickener firm by ramming in gap between adjacent two cathode blocks (1), between cathode block (1) and the sidepiece furnace wall (8); Between the upper surface of each cathode block (1), the discrepancy in elevation should be configured to concavo-convex platform trough shape between ramming paste (11) and cathode block (1) upper surface.As implement illustration 11, Figure 12, shown in.
Structure thermal equilibrium adjustable pipe (14) in the sidepiece furnace wall (8) of aluminium electrolytic cell cathode both sides and bottom thermal insulation layer (7).The two ends of thermal equilibrium adjustable pipe (14) are connected with electrolyzer Steel Sheel (9), the two ends of thermal equilibrium pipe (14) have can be than the end socket of closure, when the cathode lining of electrolytic bath local superheating, can open the end socket at close thermal equilibrium pipe (14) two ends, by air circulation carry out part cooling, regulating lowers the temperature makes it balance; Cross and coldly then shut.Replenish the thermal equilibrium of regulating electrolyzer in this way, can guarantee the balance of the horizontal thermal stresses of cathode inner lining, prevent the generation of bakie accident, the scaling loss conductive component can play reinforcement effect to Steel Sheel (9) again simultaneously.
The inwall processing and fabricating of cathode carbon pieces (1) interior bone (2) has concavo-convex dental floss groove, cathodic metal conducting wire (3) by end-fitting (4) and carbon metallic conduction web member (6) cathode carbon pieces (1) is conducted electricity be connected after, with ramming paste (11) cathode carbon pieces (1) interior bone (2) is made firm by ramming in a down-to-earth manner.
Between cathodic metal conducting wire (3) and the electrolyzer Steel Sheel (9), be provided with Steel Sheel insulation covering (15), be used for the insulation between the two.
Claims (9)
1. cathode conductive structure for aluminum electrolysis cell is formed by building cathode block (1) on aluminium cell Steel Sheel inner thermal insulating layer, carbon metal transfer conducting connecting part (6) and cathodic metal conducting wire (3) by laying bricks or stones, it is characterized in that: in cathode block (1) internal structure last lower through-hole (2) is arranged, carbon metallic conduction web member (6) is connected with the prefabricated cathodic metal conducting wire (3) that is configured in electric tank cathode charcoal piece (1) the bottom heat-preservation and anti-leakage layer (7) by its through hole (2).
2. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1: cathodic metal conducting wire (3) are prefabricated to be configured in the interior heat-preservation and anti-leakage layer (7) of road electrolyzer, and is connected with the big bus of negative electrode (10) by the heat-preservation and anti-leakage layer (7) of cathode block (1) lower bottom part face and the Steel Sheel (9) of electrolyzer sidepiece or bottom.
3. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: the terminals of cathodic metal conducting wire (3) and carbon metallic conduction web member (6) conduct electricity with the interior bottom of cathode carbon pieces and are connected, and are configured with cathodic metal conduction end-fitting (4) in cathodic metal conducting wire (3) with the line end place that is connected of carbon metallic conduction web member (6) and cathode carbon pieces (1).
4. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: carbon metallic conduction web member (6) and cathode carbon pieces (1) are connected conducting electricity with the negative electrode conduction end-fitting (4) of the cathodic metal conductor wire terminal (3) of pre-heat-preservation and anti-leakage layer (7) in electrolyzer, the available fishbolt of through hole (2) (12) by cathode carbon pieces (1) connects, or the through hole (2) by cathode carbon pieces (1) connects with the mode of casting metal (17), and the top of carbon metal connecting piece (2) is filled with ramming paste (11) antiseep material in cathode carbon pieces (1) through hole (2).
5. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: cathodic metal conducting wire (3) can adopt in parallel in aluminium cell in the heat-preservation and anti-leakage layer (7) or placed in-line electrically conducting manner conducts electricity with cathode carbon pieces (1) and is connected, and cathodic metal conducting wire (3) can adopt shape or annealed copper wire connection to construct to assemble.
6. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: the shape of the horizontal plane of monolithic cathode block (1) in electrolyzer can be rectangle, circle and square; Cathode block (1) can carry out parallel, square crossing layout along the big generatrix direction of electrolyzer in the electrolysis tank furnace; Cathode block (1) can be arranged to a monoblock or be divided into several sections arrange in corresponding mutually both sides furnace wall (8); Make firm by ramming in a down-to-earth manner with making thickener (11) firm by ramming in gap between the cathode block (1), between cathode block (1) and the sidepiece furnace wall (8); Between the upper surface of each cathode block (1), the discrepancy in elevation should be configured to concavo-convex platform trough shape between ramming paste (11) and cathode block (1) upper surface.
7. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: in the heat-preservation and anti-leakage layer (7), the outer setting of cathodic metal conducting wire (3) has hard heat-insulating protective casing (5) in aluminium cell.
8. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: must move towards the prefabricated hard heat-insulating protective casing (5) of having buried underground by cathodic metal conducting wire (3) in advance in the heat-preservation and anti-leakage layer in aluminium cell (6); one end of hard heat-insulating protective casing (5) links to each other with the last lower through-hole (5) of cathode carbon pieces (5); another is constructed earlier with big bus (5) coupling end and shuts; employing is from the forging type of cathode carbon pieces (1) through hole (2) casting metals 117 liquid in hard heat-insulating protective casing (5); once construct cathodic metal conducting wire 3 and carbon metal connecting piece (6), and conduct electricity with cathode carbon pieces (1) structure and to be connected.
9. it is characterized in that according to the described cathode conductive structure for aluminum electrolysis cell of claim 1:: be configured with electrolyzer thermal equilibrium adjustable pipe (17) in aluminum electrolytic cell bottom thermal insulation layer (7), the two ends of thermal equilibrium adjustable pipe (17) are connected with electrolyzer Steel Sheel (9).
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| CN2009201575481U CN201473601U (en) | 2009-05-25 | 2009-05-25 | Conductive structure of cathode of aluminum electrolysis bath |
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Cited By (3)
| 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 |
| CN103774181A (en) * | 2012-10-23 | 2014-05-07 | 贵阳铝镁设计研究院有限公司 | Negative pole steel bar structure having effects of preventing erosion and inhibiting horizontal current |
| CN114016088A (en) * | 2021-12-14 | 2022-02-08 | 中国铝业股份有限公司 | Anode carbon block group, aluminum electrolysis equipment and preparation method of anode carbon block group |
-
2009
- 2009-05-25 CN CN2009201575481U patent/CN201473601U/en not_active Expired - Lifetime
Cited By (4)
| 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 |
| CN103774181A (en) * | 2012-10-23 | 2014-05-07 | 贵阳铝镁设计研究院有限公司 | Negative pole steel bar structure having effects of preventing erosion and inhibiting horizontal current |
| CN114016088A (en) * | 2021-12-14 | 2022-02-08 | 中国铝业股份有限公司 | Anode carbon block group, aluminum electrolysis equipment and preparation method of anode carbon block group |
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Owner name: XINJIANG PRODUCTION AND CONSTRUCTION CORPS AGRICUL Free format text: FORMER OWNER: GAO DEJIN Effective date: 20140515 |
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Address after: 832014 weft five road No. 1, North Industrial Park, Shihezi Development Zone, Shihezi, the Xinjiang Uygur Autonomous Region Patentee after: Xinjiang production and Construction Corps eighth division Tianshan aluminum Limited by Share Ltd Address before: 832000 No. four East 49 North Road, the Xinjiang Uygur Autonomous Region, Shihezi Patentee before: THE EIGHTH AGRICULTURAL DIVISION OF XINJIANG PRODUCTION AND CONSTRUCTION CORPS TIANSHAN ALUMINUM INDUSTRY CO., LTD. |
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