CN201793765U - Cathode carbon block - Google Patents
Cathode carbon block Download PDFInfo
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- CN201793765U CN201793765U CN2010205676234U CN201020567623U CN201793765U CN 201793765 U CN201793765 U CN 201793765U CN 2010205676234 U CN2010205676234 U CN 2010205676234U CN 201020567623 U CN201020567623 U CN 201020567623U CN 201793765 U CN201793765 U CN 201793765U
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- cathode carbon
- block body
- carbon pieces
- charcoal block
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Abstract
The utility model relates to a cathode carbon block, which comprises a carbon block body and bottom trenches. The cathode carbon block is characterized in that: the upper end of the carbon block body longitudinally has chamfers or fillets or arc angles. The novel cathode carbon block of an aluminum electrolysis cell can greatly reduce a horizontal current in aluminum liquid, make more uniform the current densities of the cathode carbon block and a cathode steel bar and more uniform magnetic field distribution in the cathode carbon block and the cathode steel bar, effectively decrease the flow velocity of the aluminum liquid and reduce the amplitude of fluctuation of the aluminum liquid; and simultaneously, the aluminum electrolysis cell built by the novel cathode carbon block can greatly improve the stability of aluminum electrolysis, and has greatly prolonged service life.
Description
One, technical field
The utility model relates to a kind of electric tank cathode charcoal piece, particularly a kind of specially-shaped cathode charcoal piece.
Two, background technology
At present, the refinement of industrial aluminium mainly is the method production of sodium aluminum fluoride-alumina molten salt electrolysis, its specific equipment is lined with the electrolyzer of carbonaceous material in being, between the steel casing of this type of electrolyzer and the carbon lining refractory materials and insulating brick, the carbon lining of electrolyzer is generally built by laying bricks or stones by the hard coal with anti-preferably sodium salt and potential resistance to electrolyte contamination corrosive nature or graphite material or the made charcoal piece of both mixtures and is formed, and the charcoal made from carbon material between charcoal piece and charcoal piece is stuck with paste and made firm by ramming.
Adopt in the cathode carbon pieces bottom of the cathode construction of existing aluminium cell offered groove and cathode steel bar is housed more, cathode carbon pieces vertically is emitted on bottom of electrolytic tank, cathode carbon pieces is that the upper end of regular rectangular parallelepiped or cathode carbon pieces is a convex, and the break joint of certain distance is arranged between cathode carbon pieces and the cathode carbon pieces.A kind of novel aluminum cell is disclosed as Chinese patent CN201416037Y, the cathode construction of this electrolyzer comprises pot shell and liner, distance between the cathode carbon pieces of liner is widened, this break joint is filled with pricking solid material, the height of pricking solid material is lower than the height of cathode carbon pieces and makes and occur groove between the cathode carbon pieces, the cathode construction of this aluminium cell can make aluminium liquid flow in the groove, but the cathode surface each point is very big apart from difference to cathode steel bar, current density and magnetic field distribution are inhomogeneous in the electrolytic process, have a strong impact on current efficiency.Chinese patent ZL200710010523.4 discloses a kind of specially-shaped cathode carbon block structure electrolyzer for another example, this cathode carbon pieces upper surface forms plural projection, smash paste with the charcoal element between the cathode carbon pieces and fill the formation groove, can reach the effect that slows down flow rate of aluminium liquid and fluctuating range, equally, its cathode surface each point is very big apart from difference to cathode steel bar, and current density and magnetic field distribution are inhomogeneous in the electrolytic process, have a strong impact on current efficiency.Therefore, design electrolyzer and the cathode construction thereof that a kind of comprehensive energy consumption is lower, efficient is higher and be urgent need.
Three, utility model content
Technical problem to be solved in the utility model is: provide a kind of and can reduce horizontal current in the aluminium liquid greatly, make cathode carbon pieces and the cathode steel bar current density is more even, more even, the novel cathode charcoal piece that can effectively slow down the aluminium cell of flow rate of aluminium liquid and the moving amplitude of aluminium fluid wave of Distribution of Magnetic Field in cathode carbon pieces and the cathode steel bar; Simultaneously, the aluminium cell of building by laying bricks or stones with this novel cathode charcoal piece can improve the stability of electrolysis of aluminum greatly, has prolonged the work-ing life of electrolyzer greatly.
For solving the problems of the technologies described above, concrete scheme of the present utility model is: a kind of cathode carbon pieces, comprise charcoal block body and undercut, and described charcoal block body upper end edge vertically is chamfering or fillet or arc angle.Like this, the cathode carbon pieces upper end longitudinally is chamfering or fillet or arc angle, perhaps above-mentioned chamfering or fillet or arc angle are symmetrical chamfering or fillet or arc angle, when cathode carbon pieces longitudinally is emitted on aluminum electrolytic cell bottom side by side, stay break joint at regular intervals between the adjacent cathode carbon pieces, use the negative electrode charcoal to stick with paste and fill the solid break joint of bundle, like this, the negative electrode charcoal of the relative chamfering of adjacent cathode carbon pieces or fillet or arc angle and filling break joint is stuck with paste and is formed longitudinal fluting, longitudinal fluting helps the outflow of aluminium liquid, it is moving to slow down flow rate of aluminium liquid and aluminium fluid wave, reduces pole span greatly.
The utility model is that also described charcoal block body top offers transverse concave groove.Offer transverse concave groove and also help aluminium liquid and flow out smoothly, transverse concave groove and longitudinal fluting form crisscross meshed grooves, can slow down flow rate of aluminium liquid greatly, make aluminium liquid become turbulent flow and are laminar flow.
The utility model is that also the degree of depth of described transverse concave groove is identical with the height of chamfering or fillet or arc angle.Like this, make that the degree of depth of longitudinal fluting and transverse concave groove is consistent, crisscross meshed grooves degree of depth unanimity helps flowing in length and breadth of aluminium liquid, and it is mild to flow.
The utility model is that also described transverse concave groove is rectangular tank or dovetail groove or deep-slotted chip breaker.Like this, can select the shape of cathode carbon pieces top groove as required, and each grooved all has its unique beneficial effect, when groove is rectangular tank, when the filling synthetic graphite is broken, can accomplish more smooth, transverse current distribution and Distribution of Magnetic Field are unaffected, when groove was dovetail groove, it intersected mutually with dovetail groove longitudinally, makes the negative electrode upper surface of electrolyzer form crisscross dovetail groove net, can effectively extenuate the flow velocity of aluminium liquid, change the fluidised form of aluminium liquid, become turbulent flow and be laminar flow, slow down the fluctuation of interior ionogen of groove and aluminium liquid, thereby reduce pole span and groove pressure drop, realize energy-saving and cost-reducing.
The utility model is that also described chamfering is the secondary chamfering.When chamfering was the secondary chamfering, formed longitudinal fluting was open groove, can further slow down flow rate of aluminium liquid, made the laminar flow effect more obvious.
The utility model is that also described undercut is one or two or many.
The utility model is that also the shaped upper part of described undercut cross section is chamfering or fillet or arc angle.Can guarantee that like this cathode carbon pieces upper surface is tending towards equal to the distance of rod iron, makes electric current and Distribution of Magnetic Field even.
The utility model is that also the described transverse concave groove degree of depth is 20～180mm, and the height of described chamfering or fillet or arc angle is 20～180mm.
A kind of cathode carbon pieces that the utility model provides, and the novel aluminum cell of this cathode carbon pieces that adopts also have following beneficial effect:
1, the horizontal current in the minimizing aluminium liquid;
2, improve distribution of current density and DISTRIBUTION OF MAGNETIC FIELD in aluminium liquid, cathode carbon pieces and the cathode steel bar, make electric current distribution more even, Distribution of Magnetic Field is more even.
3, can significantly reduce the stress that aluminium liquid is produced because of the action of a magnetic field, thereby effectively extenuate flow rate of aluminium liquid, and change the fluidised form of aluminium liquid, become turbulent flow and be laminar flow, slowed down the fluctuating range of interior ionogen of groove and aluminium liquid, thereby reduced pole span and bath voltage, made bath voltage reduce 500mV～900mV.
4, can realize that ton aluminium direct current consumption reduces by 1100～1300Kwh, ton aluminium direct current consumption is reduced to 10500～11800Kwh.
Four, description of drawings
Fig. 1 is the schematic perspective view of cathode carbon pieces, and this cathode carbon pieces upper end vertically is a fillet.
Fig. 2 is the schematic perspective view of cathode carbon pieces, and this cathode carbon pieces upper end is a chamfering vertically, and transverse concave groove is offered at the top.
Fig. 3 is the schematic perspective view of cathode carbon pieces, and this cathode carbon pieces upper end is an arc angle vertically, and transverse concave groove is offered at the top.
Fig. 4, Fig. 5 are the vertical vertical section of cathode carbon pieces synoptic diagram.
Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 are cathode carbon pieces vertical cross-section synoptic diagram.
Among the figure, 1, the charcoal block body, 2, undercut, 3, transverse concave groove
Five, embodiment
Below in conjunction with the drawings and specific embodiments the utility model is made detailed explanation.
Embodiment 1:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a fillet.As shown in Figure 1, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and undercut 2 is two, and described charcoal block body 1 upper end edge vertically is a fillet.
Embodiment 2:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering.As shown in Figure 2, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and undercut 2 is two, and described charcoal block body 1 upper end edge vertically is a chamfering.
Embodiment 3:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle.As shown in Figure 3, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and undercut 2 is two, and described charcoal block body 1 upper end edge vertically is an arc angle.
Embodiment 4:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering, and described charcoal block body 1 top offers transverse concave groove 3.As shown in Figure 2, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering, and described charcoal block body 1 top offers transverse concave groove 3.
Embodiment 5:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body 1 top offers transverse concave groove 3.As shown in Figure 3, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body 1 top offers transverse concave groove 3.
Embodiment 6:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body 1 top offers transverse concave groove 3, and the degree of depth of described transverse concave groove is identical with the height of arc angle.As shown in Figure 3, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body 1 top offers transverse concave groove 3, and the degree of depth of described transverse concave groove is identical with the height of arc angle.
Embodiment 7:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering, and described charcoal block body 1 top offers transverse concave groove 3, and the degree of depth of described transverse concave groove is identical with the height of chamfering.As shown in Figure 2, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering, and described charcoal block body 1 top offers transverse concave groove 3, and the degree of depth of described transverse concave groove is identical with the height of arc angle.
Embodiment 8:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 top offers transverse concave groove 3, and described transverse concave groove 3 is a rectangular tank.Shown in Fig. 2,3, cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 top offers transverse concave groove 3, and described transverse concave groove 3 is a rectangular tank.
Embodiment 9:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 top offers transverse concave groove 3, and described transverse concave groove 3 is a dovetail groove.As shown in Figure 5, described charcoal block body 1 top offers transverse concave groove 3, and described transverse concave groove 3 is a dovetail groove.
Embodiment 10:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 top offers transverse concave groove 3, and described transverse concave groove 3 is a deep-slotted chip breaker.As shown in Figure 4, described charcoal block body 1 top offers transverse concave groove 3, and described transverse concave groove 3 is a deep-slotted chip breaker.
Embodiment 11:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering, and described chamfering is the secondary chamfering.As shown in Figure 6, described charcoal block body 1 upper end edge vertically is a chamfering, and described chamfering is the secondary chamfering.
Embodiment 12:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and undercut 2 is one.As shown in Figure 6, described undercut 2 is one.
Embodiment 13:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and undercut 2 is two.Shown in Fig. 1,2,3,7, described undercut 2 is two.
Embodiment 14:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and undercut 2 is four.As shown in figure 10, described undercut 2 is four.
Embodiment 15:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and the shaped upper part of described undercut 2 cross sections is a fillet.As shown in Figure 8, the shaped upper part of described undercut 2 cross sections is a fillet.
Embodiment 16:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and the shaped upper part of described undercut 2 cross sections is a chamfering.As shown in Figure 9, the shaped upper part of described undercut 2 cross sections is a chamfering.
Embodiment 17:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is a chamfering, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 20mm, and the height of described chamfering is 20mm.As shown in Figure 2, the described transverse concave groove degree of depth is 20mm, and the height of described chamfering is 20mm.
Embodiment 18:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 40mm, and the height of described arc angle is 40mm.As shown in Figure 3, the described transverse concave groove degree of depth is 40mm, and the height of described arc angle is 40mm.
Embodiment 19:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 50mm, and the height of described arc angle is 50mm.
Embodiment 20:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 80mm, and the height of described arc angle is 80mm.
Embodiment 21:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 100mm, and the height of described arc angle is 100mm.
Embodiment 22:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 120mm, and the height of described arc angle is 120mm.
Embodiment 23:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 150mm, and the height of described arc angle is 150mm.
Embodiment 24:
A kind of cathode carbon pieces comprises charcoal block body 1 and undercut 2, and described charcoal block body 1 upper end edge vertically is an arc angle, and described charcoal block body top offers transverse concave groove 3, and the described transverse concave groove degree of depth is 180mm, and the height of described arc angle is 180mm.
Claims (8)
1. a cathode carbon pieces comprises charcoal block body and undercut, it is characterized in that, described charcoal block body upper end edge vertically is chamfering or fillet or arc angle.
2. a kind of cathode carbon pieces according to claim 1 is characterized in that, described charcoal block body top offers transverse concave groove.
3. a kind of cathode carbon pieces according to claim 2 is characterized in that, the degree of depth of described transverse concave groove is identical with the height of chamfering or fillet or arc angle.
4. a kind of cathode carbon pieces according to claim 2 is characterized in that, described transverse concave groove is rectangular tank or dovetail groove or deep-slotted chip breaker.
5. a kind of cathode carbon pieces according to claim 1 is characterized in that, described chamfering is the secondary chamfering.
6. a kind of cathode carbon pieces according to claim 1 is characterized in that, described undercut is one or two or many.
7. a kind of cathode carbon pieces according to claim 6 is characterized in that, the shaped upper part of described undercut cross section is chamfering or fillet or arc angle.
8. according to the described a kind of cathode carbon pieces of arbitrary claim in the claim 1 to 7, it is characterized in that the described transverse concave groove degree of depth is 20～180mm, the height of described chamfering or fillet or arc angle is 20～180mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205676234U CN201793765U (en) | 2010-09-30 | 2010-09-30 | Cathode carbon block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205676234U CN201793765U (en) | 2010-09-30 | 2010-09-30 | Cathode carbon block |
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| Publication Number | Publication Date |
|---|---|
| CN201793765U true CN201793765U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205676234U Expired - Fee Related CN201793765U (en) | 2010-09-30 | 2010-09-30 | Cathode carbon block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160857A (en) * | 2011-12-13 | 2013-06-19 | 贵阳铝镁设计研究院有限公司 | Network groove negative electrode structure |
-
2010
- 2010-09-30 CN CN2010205676234U patent/CN201793765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160857A (en) * | 2011-12-13 | 2013-06-19 | 贵阳铝镁设计研究院有限公司 | Network groove negative electrode structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan Wuqiang Property (Group) Co., Ltd. Assignor: Hunan Chuangyuan Aluminium Industry Co., Ltd. Contract record no.: 2011430000127 Denomination of utility model: Cathode carbon block turnover device Granted publication date: 20110413 License type: Exclusive License Record date: 20110809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |