CN114059102A - Method for reducing voltage drop by optimizing anode steel claw structure for aluminum electrolysis and anode steel claw - Google Patents
Method for reducing voltage drop by optimizing anode steel claw structure for aluminum electrolysis and anode steel claw Download PDFInfo
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- CN114059102A CN114059102A CN202111573250.0A CN202111573250A CN114059102A CN 114059102 A CN114059102 A CN 114059102A CN 202111573250 A CN202111573250 A CN 202111573250A CN 114059102 A CN114059102 A CN 114059102A
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
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Abstract
The invention relates to a method for reducing voltage drop by optimizing an anode steel claw structure for aluminum electrolysis and an anode steel claw, wherein the anode steel claw comprises a steel beam and a claw head, the claw head is arranged at the lower end of the steel beam, and the height between the bottom surface of the claw head and the top surface of the steel beam is determined according to the thickness of a covering material; the length of the claw head is shortened, the shape of the steel beam is adjusted, and the height between the bottom surface of the claw head and the top end of the steel beam is kept unchanged, so that the resistance of the claw head is reduced, the purpose of reducing the voltage drop is achieved, the whole material of the anode steel claw is saved to a certain extent, the energy consumption in the electrolytic aluminum production is reduced, and the material of the anode steel claw is saved.
Description
Technical Field
The invention relates to the technical field of aluminum electrolysis, in particular to a method for reducing voltage drop by optimizing an anode steel claw structure for aluminum electrolysis and an anode steel claw.
Background
The anode steel claw is an important connecting structure between the guide rod and the carbon block in the electrolytic aluminum anode, and the anode steel claw has the functions of connecting and bearing the weight of the prebaked anode carbon block and conducting electricity. In the aluminum electrolysis process, the pressure drop of the anode steel claw is generally 30-90mV, and the power consumption per ton of aluminum is increased by 100-300 kwh. In order to reduce the energy consumption of aluminum electrolysis, the voltage drop of an electrolytic cell is an important measure, according to the ampere law, under the condition of a certain current, the voltage drop of the electrolytic cell can be reduced by reducing the resistance of an anode steel claw, the resistance is reduced by increasing the conductive section of the steel claw or a cross beam in partial research at present, but the weight of the anode steel claw is increased by the scheme, the manufacturing cost of the steel claw is improved, the resistance is reduced by shortening the length of a steel claw head, but the scheme causes the high explosion welding of a connecting rod and the steel claw and has the risk of claw release, and on the other hand, after the steel claw head is shortened, the covering material covering thickness is reduced, the upper heat preservation is influenced, and the energy consumption of electrolysis is increased.
Disclosure of Invention
The invention aims to provide a method for reducing voltage drop by optimizing an anode steel claw structure for aluminum electrolysis, which aims to solve the problem of energy consumption increase caused by high voltage drop of the anode steel claw for electrolysis in the prior art and also provides an anode steel claw.
In order to achieve the purpose, the invention adopts the following technical scheme:
the method for reducing the pressure drop of the anode steel claw structure for optimizing the aluminum electrolysis comprises the steps that the anode steel claw comprises a steel beam and a claw head, the claw head is arranged at the lower end of the steel beam, and the height between the bottom surface of the claw head and the top end of the steel beam is determined according to the added thickness of a covering material; the length of the outermost claw head is shortened, so that the height between the bottom surface of each claw head and the top end of the steel beam is kept unchanged.
Single positive pole steel claw includes girder steel and four claw heads, and four claw heads are established along girder steel length direction the girder steel lower extreme, girder steel width 80mm, claw head diameter 140mm, wherein, two claw head height in the outermost side are 110 and join in marriage a powder 200mm, and the girder steel slope sets up, and the height on each claw head bottom surface and girder steel top is 440 mm.
More preferably, the outermost claw head has a height of 200 mm.
More preferably, the outermost toe height is 160 mm.
Preferably, the height of the outermost claw head is 110mm, a covering material anti-slipping piece is arranged at the position, corresponding to the outermost claw head, on the steel beam, and the height of the covering material anti-slipping piece is 50-70 mm.
The double-anode steel claw comprises a steel beam and six claw heads, wherein the steel beam is in a six-claw shape, the six claw heads are arranged at the lower end of the steel beam, the width of the steel beam is 100mm, and the diameter of each claw head is 175 mm; the heights of the six claw heads are 145-195mm, and the heights of the bottom surfaces of the claw heads and the top ends of the steel beams are 455 mm.
More preferably, the heights of the six claw heads are all 195 mm.
More preferably, the heights of the four outermost claws are 195 mm.
Preferably, the heights of the four outermost claw heads are 145mm, the position, corresponding to the outermost claw head, on the steel beam is provided with a covering material anti-slipping piece, and the height of the covering material anti-slipping piece is 50-70 mm.
The invention has the beneficial effects that:
after the height of the bottom surface of the claw head and the top surface of the steel beam is determined, the length of the claw head is shortened, and the shape of the steel beam is adjusted, so that the height of the bottom surface of the claw head and the top surface of the steel beam is kept consistent with that before adjustment, the overall strength of the anode steel claw is not influenced, the heat preservation effect is ensured, meanwhile, the resistance of the claw head is reduced, the purpose of reducing the voltage drop is achieved, the overall material consumption of the anode steel claw is also saved to a certain extent, the energy consumption in the production of electrolytic aluminum is reduced, and the material of the anode steel claw is also saved.
Drawings
FIG. 1 is a schematic view of a single anode steel jaw before optimization;
FIG. 2 is a schematic view of a single anode steel jaw optimized in examples 1 and 2;
FIG. 3 is a schematic view of a single anode steel stud optimized in example 3;
FIG. 4 is a top view of a dual anode steel jaw before optimization;
FIG. 5 is a front view of a dual anode steel jaw before optimization;
FIG. 6 is a front view of the steel claw of the double anode optimized in the embodiment 4 and the embodiment 5;
FIG. 7 is a front view of the double anode steel claw optimized in example 6.
Names corresponding to the marks in the figure: 1. girder steel, 2, claw head, 3, the coating prevents the slide.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1:
the method for optimizing the anode steel claw structure for aluminum electrolysis to reduce the voltage drop in the embodiment of the invention is characterized in that the overall resistance of the anode steel claw is reduced by properly reducing the height of each claw head and adjusting the shape of a steel beam, so that the purpose of reducing the voltage drop is achieved.
The anode steel claw comprises a single anode steel claw and a double anode steel claw, the single anode steel claw in the embodiment is matched with the covering material to maintain the heat preservation effect in the aluminum electrolysis process, and the covering material laid at the upper end of the steel beam 1 is 200mm thick.
As shown in fig. 1, the single-anode steel claw comprises a steel beam 1 and four claw heads 2, wherein the four claw heads 2 are all arranged at the lower end of the steel beam 1, the length of the steel beam 1 is 1100mm, the width of the steel beam is 80mm, the height of the steel beam is 140mm, the diameters of the four claw heads 2 are 140mm, the height of the claw heads 2 is 300mm, and the heights of the bottom surfaces of the claw heads 2 and the top end of the steel beam 1 are 440 mm.
As shown in fig. 2, the single-anode steel claw is structurally optimized, the heights of the two outermost claw heads 2 are reduced to 200mm, the heights of the two middle claw heads 2 are correspondingly adjusted, so that the bottom surfaces of the four claw heads 2 are flush, the steel beams 1 are obliquely and downwards arranged from the middle to the two ends by adjusting the shapes of the steel beams 1, and the heights of the bottom surfaces of the four claw heads 2 and the top ends of the steel beams 1 are kept to be 440 mm.
After the structure is optimized, the integral material consumption of the anode steel claw is reduced by 11.9 percent through measurement, the average steel claw pressure drop is reduced from 57.3mV to 54.1mV, and the average steel claw pressure drop is reduced by 5.6 percent; the average heat dissipation of the surface of the steel claw is reduced from 126.5mV to 106.2mV, and is reduced by 16.0%.
Example 2:
the single-anode steel claw in the embodiment is matched with the covering material to maintain the heat preservation effect in the aluminum electrolysis process, and the thickness of the covering material laid at the upper end of the steel beam 1 is 200 mm.
As shown in fig. 1, the single-anode steel claw comprises a steel beam 1 and four claw heads 2, wherein the four claw heads 2 are all arranged at the lower end of the steel beam 1, the length of the steel beam 1 is 1100mm, the width of the steel beam is 80mm, the height of the steel beam is 140mm, the diameters of the four claw heads 2 are 140mm, the height of the claw heads 2 is 300mm, and the heights of the bottom surfaces of the claw heads 2 and the top end of the steel beam 1 are 440 mm.
As shown in fig. 2, the single-anode steel claw is structurally optimized, the heights of the two outermost claw heads 2 are reduced to 160mm, the heights of the two middle claw heads 2 are correspondingly adjusted, so that the bottom surfaces of the four claw heads 2 are flush, the steel beam 1 is inclined downwards from the middle to the two ends by adjusting the shape of the steel beam 1, and the heights of the bottom surfaces of the four claw heads 2 and the top end of the steel beam 1 are kept to 440 mm.
After the structure is optimized, the integral material consumption of the anode steel claw is reduced by 16.8 percent through measurement, the average steel claw pressure drop is reduced from 60.5mV to 56.3mV, and the average steel claw pressure drop is reduced by 6.9 percent; the average heat dissipation of the surface of the steel claw is reduced from 136.6mV to 103.4mV, and is reduced by 24.3%.
Example 3:
the single-anode steel claw in the embodiment is matched with the covering material to maintain the heat preservation effect in the aluminum electrolysis process, and the thickness of the covering material laid at the upper end of the steel beam 1 is 200 mm.
As shown in fig. 1, the single-anode steel claw comprises a steel beam 1 and four claw heads 2, wherein the four claw heads 2 are all arranged at the lower end of the steel beam 1, the length of the steel beam 1 is 1100mm, the width of the steel beam is 80mm, the height of the steel beam is 140mm, the diameters of the four claw heads 2 are 140mm, the height of the claw heads 2 is 300mm, and the heights of the bottom surfaces of the claw heads 2 and the top end of the steel beam 1 are 440 mm.
As shown in fig. 3, carry out configuration optimization to the single anode steel claw, highly reduce two claw heads 2 in the outside to 110mm, two claw heads 2 in the middle of highly also corresponding adjustment for four claw heads 2's bottom surface parallel and level, through the shape of adjustment girder steel 1, set up girder steel 1 from the centre downwards to both ends slope, make four claw heads 2's bottom surface and girder steel 1 top highly keep 440mm, simultaneously, set up the high slide 3 of preventing for 50 mm's cover material in girder steel 1's both ends, avoid the cover material to slide.
After the structure is optimized, the integral material consumption of the anode steel claw is reduced by 24.2 percent through measurement, the average steel claw pressure drop is reduced from 55.9mV to 51.4mV, and the average steel claw pressure drop is reduced by 8.1 percent; the average heat dissipation of the surface of the steel claw is reduced from 118.4mV to 78.7mV, and is reduced by 33.5%.
Example 4:
the double-anode steel claw in the embodiment is matched with the covering material to maintain the heat preservation effect in the aluminum electrolysis process, and the thickness of the covering material laid at the upper end of the steel beam 1 is 200 mm.
As shown in fig. 4 and 5, the double-anode steel claw comprises six claw heads 2 and a steel beam 1, wherein the steel beam is in a six-claw shape, and the six claw heads 2 are arranged at the lower end of the steel beam 1. The centers of the four outermost claw heads form a rectangle, wherein the width of the rectangle is 680mm, the length of the rectangle is 900mm, the diameter of the claw head 2 is 175mm, the height of the claw head is 295mm, the thickness of the steel beam 1 is 100mm, the height of the steel beam 1 is 160mm, and the height of the bottom surface of the claw head 2 and the top end of the steel beam 1 is 455 mm.
The structure of the double-anode steel claw is optimized, as shown in fig. 6, the heights of the six claw heads 2 are all reduced to 195mm, so that the bottom surfaces of the six claw heads 2 are flush, and by adjusting the shapes of the steel beams 1, the steel beams 1 are obliquely arranged downwards, so that the heights of the bottom surfaces of the six claw heads 2 and the top ends of the steel beams 1 are maintained at 455 mm.
After the structure is optimized, the integral material consumption of the anode steel claw is reduced by 15.4 percent through measurement, the average steel claw pressure drop is reduced from 65.2mV to 59.0mV, and the average steel claw pressure drop is reduced by 9.5 percent; the average heat dissipation of the surface of the steel claw is reduced from 129.5mV to 110.6mV, and the heat dissipation is reduced by 14.6%.
Example 5:
the double-anode steel claw in the embodiment is matched with the covering material to maintain the heat preservation effect in the aluminum electrolysis process, and the thickness of the covering material laid at the upper end of the steel beam 1 is 200 mm.
As shown in fig. 4 and 5, the double-anode steel claw comprises six claw heads 2 and a steel beam 1, wherein the steel beam is in a six-claw shape, and the six claw heads 2 are arranged at the lower end of the steel beam 1. The centers of the four outermost claw heads form a rectangle, wherein the width of the rectangle is 680mm, the length of the rectangle is 900mm, the diameter of the claw head 2 is 175mm, the height of the claw head is 295mm, the thickness of the steel beam 1 is 100mm, the height of the steel beam 1 is 160mm, and the height of the bottom surface of the claw head 2 and the top end of the steel beam 1 is 455 mm.
The structure of the double-anode steel claw is optimized, as shown in fig. 6, the heights of the four outermost claw heads 2 are all reduced to 195mm, the heights of the other two claw heads 2 are kept unchanged, so that the bottom surfaces of the six claw heads 2 are flush, and the heights of the bottom surfaces of the six claw heads 2 and the top end of the steel beam 1 are kept 455mm by adjusting the shape of the steel beam 1.
After the structure is optimized, the integral material consumption of the anode steel claw is reduced by 11.5 percent through measurement, and the average steel claw pressure drop is reduced from 60.4mV to 57.1mV, which is reduced by 5.5 percent; the average heat dissipation of the surface of the steel claw is reduced from 136.5mV to 120.9mV, and is reduced by 11.4%.
Example 6:
the double-anode steel claw in the embodiment is matched with the covering material to maintain the heat preservation effect in the aluminum electrolysis process, and the thickness of the covering material laid at the upper end of the steel beam 1 is 250 mm.
As shown in fig. 4 and 5, the double-anode steel claw comprises six claw heads 2 and a steel beam 1, wherein the steel beam is in a six-claw shape, and the six claw heads 2 are arranged at the lower end of the steel beam 1. The centers of the four outermost claw heads form a rectangle, wherein the width of the rectangle is 680mm, the length of the rectangle is 900mm, the diameter of the claw head 2 is 175mm, the height of the claw head is 295mm, the thickness of the steel beam 1 is 100mm, the height of the steel beam 1 is 160mm, and the height of the bottom surface of the claw head 2 and the top end of the steel beam 1 is 455 mm.
Carry out configuration optimization to the double anode steel claw, shown in fig. 7, all reduce the height of four claw heads 2 in the outermost side to 145mm, the height of two other claw heads 2 keeps unchanged, make the bottom surface parallel and level of six claw heads 2, through the shape of adjustment girder steel 1, girder steel 1 slope that four claw heads 2 in the outermost side are connected sets up downwards, make the bottom surface of six claw heads 2 and the height on girder steel 1 top keep 455mm, simultaneously, set up the high swift current piece 3 of preventing of covering material that is 50mm in the upper end edge of girder steel 1 that four claw heads 2 in the outermost side are connected, avoid the covering material to slide.
After the structure is optimized, the integral material consumption of the anode steel claw is reduced by 15.2 percent through measurement, the average steel claw pressure drop is reduced from 64.8mV to 60.3mV, and the average steel claw pressure drop is reduced by 6.9 percent; the average heat dissipation of the surface of the steel claw is reduced from 124.8mV to 92.4mV, which is reduced by 26.0%.
In other embodiments, the height of the coating anti-slip sheet 3 on the single anode steel claw is set to be 60 mm.
In other embodiments, the height of the coating anti-slip sheet 3 on the single anode steel claw is set to 70 mm.
In other embodiments, the height of the covering material anti-slip sheet 3 on the double anode steel claw is set to be 60 mm.
In other embodiments, the height of the covering material anti-slip sheet 3 on the double anode steel claw is set to 70 mm.
Claims (9)
1. The method for reducing the pressure drop of the anode steel claw structure for optimizing the aluminum electrolysis comprises the following steps of: determining the height between the bottom surface of the claw head and the top end of the steel beam according to the added thickness of the covering material; the length of the outermost claw head is shortened, so that the height between the bottom surface of each claw head and the top end of the steel beam is kept unchanged.
2. The single anode steel claw manufactured by the method for reducing the pressure drop by optimizing the anode steel claw structure for aluminum electrolysis according to claim 1, wherein the method comprises the following steps: including girder steel and four claw heads, four claw heads are established along girder steel length direction the girder steel lower extreme, girder steel width 80mm, claw head diameter 140mm, wherein, two claw head heights in the outside are 110 and become with a 200mm, and the girder steel slope sets up, and the height on each claw head bottom surface and girder steel top is 440 mm.
3. The single anode steel jaw according to claim 2, characterized in that: the height of the outermost claw head is 200 mm.
4. The single anode steel jaw according to claim 2, characterized in that: the outermost claw head height is 160 mm.
5. The single anode steel jaw according to claim 2, characterized in that: the height of the outermost claw head is 110mm, a covering material anti-sliding sheet is arranged at the position, corresponding to the outermost claw head, on the steel beam, and the height of the covering material anti-sliding sheet is 50-70 mm.
6. The double anode steel claw manufactured by the method for reducing the pressure drop by optimizing the anode steel claw structure for aluminum electrolysis according to claim 1, is characterized in that: the steel beam is in a six-claw shape, the six claw heads are arranged at the lower end of the steel beam, the width of the steel beam is 100mm, and the diameter of the claw heads is 175 mm; the heights of the six claw heads are 145-195mm, and the heights of the bottom surfaces of the claw heads and the top ends of the steel beams are 455 mm.
7. The double anode steel claw according to claim 6, characterized in that: the heights of the six claw heads are all 195 mm.
8. The double anode steel claw according to claim 6, characterized in that: the heights of the four outermost claw heads are 195 mm.
9. The double anode steel claw according to claim 6, characterized in that: the heights of the four outermost claw heads are 145mm, the positions, corresponding to the outermost claw heads, on the steel beam are provided with covering material anti-sliding sheets, and the heights of the covering material anti-sliding sheets are 50-70 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111573250.0A CN114059102A (en) | 2021-12-21 | 2021-12-21 | Method for reducing voltage drop by optimizing anode steel claw structure for aluminum electrolysis and anode steel claw |
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| CN202111573250.0A CN114059102A (en) | 2021-12-21 | 2021-12-21 | Method for reducing voltage drop by optimizing anode steel claw structure for aluminum electrolysis and anode steel claw |
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| CN202658243U (en) * | 2012-07-09 | 2013-01-09 | 李晓明 | Electrolytic aluminum anode conductive steel claw |
| CN104593825A (en) * | 2015-02-06 | 2015-05-06 | 广西来宾银海铝业有限责任公司 | Anode of aluminum electrolysis cell and preparation method thereof |
| CN204661834U (en) * | 2015-02-28 | 2015-09-23 | 苏加强 | Electrolytic aluminum anode steel pawl |
| CN105506673A (en) * | 2015-12-25 | 2016-04-20 | 武汉大学 | High-conductivity prebaked anode steel claw |
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2021
- 2021-12-21 CN CN202111573250.0A patent/CN114059102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641062Y (en) * | 2003-06-13 | 2004-09-15 | 沈阳铝镁设计研究院 | Union body structure of double anode |
| CN202658243U (en) * | 2012-07-09 | 2013-01-09 | 李晓明 | Electrolytic aluminum anode conductive steel claw |
| CN104593825A (en) * | 2015-02-06 | 2015-05-06 | 广西来宾银海铝业有限责任公司 | Anode of aluminum electrolysis cell and preparation method thereof |
| CN204661834U (en) * | 2015-02-28 | 2015-09-23 | 苏加强 | Electrolytic aluminum anode steel pawl |
| CN105506673A (en) * | 2015-12-25 | 2016-04-20 | 武汉大学 | High-conductivity prebaked anode steel claw |
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| 卢延峰: "铝电解槽新型阳极钢爪研究", 《有色冶金节能》 * |
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