CN102154664A - Anode structure of aluminum electrolytic cell densely distributed with carbon anodes in narrow centre joints - Google Patents
Anode structure of aluminum electrolytic cell densely distributed with carbon anodes in narrow centre joints Download PDFInfo
- Publication number
- CN102154664A CN102154664A CN 201110063297 CN201110063297A CN102154664A CN 102154664 A CN102154664 A CN 102154664A CN 201110063297 CN201110063297 CN 201110063297 CN 201110063297 A CN201110063297 A CN 201110063297A CN 102154664 A CN102154664 A CN 102154664A
- Authority
- CN
- China
- Prior art keywords
- anode
- carbon
- carbon anode
- aluminium cell
- centre joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The invention provides an anode structure of an aluminum electrolytic cell densely provided with a plurality of carbon anodes in a plurality of narrow centre joints. A plurality of carbon anodes which are connected with the same anode generatrix by a plurality of anode claws and a plurality of anode guide rods are taken as a carbon anode set, and the distance between the adjoining carbon anodes in the same carbon anode set is 20-50mm; and the distance between every two carbon anode sets is called as the centre joint for the anodes of the aluminum electrolytic cell, wherein the width of the centre joint is 30-50mm. The anode structure of the aluminum electrolytic cell densely provided with the carbon anodes in the narrow centre joints is used for electrolyzing the aluminum on the aluminum electrolytic cell, so that an projected area on the cathodes of the carbon anode set can be greatly improved, the current efficiency when the aluminum is electrolyzed can be improved, and the heat loss at the upper part of the electrolytic cell can be reduced, particularly, the test shows that the anode structure has good effect for the aluminum electrolytic cells with various novel cathode structures.
Description
Technical field
The invention belongs to the aluminium electrolytic equipment technical field, the aluminium cell anode structure of the densely arranged carbon anode of particularly a kind of narrow centre joint.
Background technology
Present industrial metallic aluminium adopts fused salt electrolysis process mostly, produces in an aluminium cell that is called prebaked anode.This prebaked anode is to be made by the carbonaceous material of refinery coke; Carbon anode under each anode rod of aluminium cell generally all is a rectangular parallelepiped, two corresponding to aluminium busbars of the longitudinal direction with electrolyzer are arranged on the electrolyzer, the carbon anode of electrolyzer is connected by two positive bar of anode rod with the electrolyzer top, each carbon anode that connects on the same positive bar above the electrolyzer is a carbon anode group, gapped between the adjacent carbon anode in the carbon anode group, belong to also gapped between the adjacent carbon anode of different carbon anode groups respectively.According to the design of present large-sized prebaked industrial aluminum electrolysis bath, the gap between the adjacent carbon anode in the same carbon anode group is less, generally between 20 ~ 50mm.Gap between the adjacent carbon anodes on two row's carbon anode groups on two positive bar is bigger, generally between 150 ~ 250mm, this gap is commonly referred to the anode centre joint of aluminium cell, and the length of the whole carbon anode group on its length and the electrolyzer longitudinal direction is consistent.In the large-sized prebaked cell for aluminum-reduction of middle blanking, centre joint top is distributed with 4 ~ 8 crust breaking blanking devices, and the crust-breaking chips of these crust breaking blanking devices just is installed in crust breaking feed opening top.
On industrial cell, its anodic reaction mainly occurs in the anodic basal surface, and cathodic reaction mainly occurs on the aluminium propulsive cathode surface under the anode projection, has the aluminium propulsive cathode surface of projection to be the electrolysis area; Liquid aluminum beyond the anode projection is non-electrolysis area, current density is little or do not have a Faradaic current on non-electrolysis area, strength of electric field is very low even do not have herein, causes the solution loss of this part the negative electrode liquid aluminum al dissolution loss on long-pending greater than aluminium on the anode projection plane.
The gap (centre joint) that 150 ~ 250mm is arranged between the adjacent carbon anode between two row's carbon anode groups on the existing industrial aluminum electrolysis bath on two positive bar; Because the bigger aluminium liquid in gap is not in anode drop shadow spread, cause the solution loss of very large aluminium, thereby the current efficiency of electrolyzer is reduced, with the 300kA large-scale aluminum electrolytic cell is example, at least 15 meters of the length of the groove thorax on the longitudinal direction of electrolyzer, calculate by the anode centre joint 200mm between two row's carbon anode groups of two positive bar belows, the area of its non-electrolysis cathode aluminium liquid is 3 square metres, the al dissolution of so big non-electrolysis area and cause the loss of current efficiency may be up to more than 2%; In addition, the thermosteresis of the electrolyzer that surface-area caused of so big electrolyte melt is also very big, concerning advanced at present novel cathode structure electrolyzer, need and reduce bath voltage and realize that aluminium cell reduces power consumption significantly by insulation, and huge calorific loss will be caused in the gap between the carbon anode of aluminum current electrolyzer, how to improve the electrolysis area of aluminium liquid, and then to improve current efficiency, reduce energy consumption be present urgent problem.
Summary of the invention
The centre joint at existing aluminium cell carbon anode is bigger, and heat lost by radiation and aluminium lose bigger problem, the invention provides the aluminium cell anode structure of the densely arranged carbon anode of a kind of narrow centre joint.
The aluminium cell anode structure of the densely arranged carbon anode of the narrow centre joint of the present invention comprises carbon anode, anode claw, anode rod, positive bar; Each positive bar is connected with plural anode rod, each anode rod is connected with an anode claw, each anode claw is fixedlyed connected with one or more carbon anode, the a plurality of carbon anodes that are connected on the same positive bar by anode claw and anode rod are a carbon anode group, the top of this aluminium cell anode structure is provided with more than one blanking device, there is a crust-breaking chips each blanking device bottom, and the distance between the adjacent carbon anode of wherein same carbon anode group is 20 ~ 50mm; Distance between two carbon anode groups is called the centre joint of aluminium cell anode, and the width of the centre joint is 30 ~ 50mm.
In the aluminium cell anode structure of the above-mentioned densely arranged carbon anode of the narrow centre joint, 2 ~ 4 the adjacent carbon anodes nearest with each crust-breaking chips bottom of aluminium cell anode superstructure are provided with breach, breach on each adjacent carbon anode and the slit between the adjacent carbon anode constitute feed opening, each feed opening lay respectively at a crust-breaking chips under.
In the aluminium cell anode structure of the above-mentioned densely arranged carbon anode of the narrow centre joint, the axis of crust-breaking chips is by the center of feed opening.
In the aluminium cell anode structure of the above-mentioned densely arranged carbon anode of the narrow centre joint, the horizontal section of feed opening is rectangle or two rhombuses that catercorner length is 200 ~ 400mm of the length of side 100 ~ 300mm.
The aluminium cell anode structure of the densely arranged carbon anode of the narrow centre joint of the present invention is applicable to the infant industry aluminium cell, also is applicable to the industrial aluminum electrolysis bath that builds up or put into operation; For the infant industry aluminium cell, adopt aforesaid way directly to design and make; For the aluminium cell that builds up and put into operation, under the situation that does not change bus position and blanking device position, can realize such scheme by changing carbon anode, centre joint width between two carbon anode groups is 30 ~ 50mm, when the upper position between two carbon anode groups is equipped with blanking device, the length of one of them carbon anode group or two carbon anode groups is adjusted in a manner described, is made into the carbon anode of corner notches or limit portion breach.
The aluminium cell anode structure of the densely arranged carbon anode of the narrow centre joint of the present invention is used in carries out electrolytic aluminum on the aluminium cell, can significantly improve the shadow area on the carbon anode group negative electrode, improve the current efficiency in the aluminium electrolysis process, reduce the calorific loss of upper part of the electrolytic cell simultaneously, especially for the aluminium cell of various novel cathode structures, has good effect by evidence.
Description of drawings
Fig. 1 is the aluminium cell anode structure plan structure synoptic diagram of the densely arranged carbon anode of the narrow centre joint in the embodiment of the invention 1;
Fig. 2 cuts open figure for the A-A face of Fig. 1;
Fig. 3 is the aluminium cell anode structure plan structure synoptic diagram of the densely arranged carbon anode of the narrow centre joint in the embodiment of the invention 2;
Fig. 4 is the aluminium cell anode structure plan structure synoptic diagram of the densely arranged carbon anode of the narrow centre joint in the embodiment of the invention 3;
Fig. 5 is the aluminium cell anode structure plan structure synoptic diagram of the densely arranged carbon anode of the narrow centre joint in the embodiment of the invention 4;
Fig. 6 cuts open figure for the A-A face of Fig. 5;
Fig. 7 is the aluminium cell anode structure plan structure synoptic diagram of the densely arranged carbon anode of the narrow centre joint in the embodiment of the invention 5;
Among the figure 1, carbon anode, 2, anode rod, 3, anode claw, 4, crust-breaking chips, 5, positive bar, 6, little carbon anode.
Embodiment
The blanking device quantity of the aluminium cell in the embodiment of the invention is 4 ~ 8.
The carbon anode that is connected with an anode claw in the embodiment of the invention is one or more; When an anode claw connected a plurality of carbon anode, this carbon anode was called little carbon anode.
The aluminium cell anode structure of the newly-built densely arranged carbon anode of the narrow centre joint as shown in Figure 1, A-A face structure comprises carbon anode 1, anode claw 3, anode rod 2 and positive bar 5 as shown in Figure 2; Each positive bar 5 is connected with a plurality of anode rods 2, each anode rod 2 is connected with an anode claw 3, each anode claw 3 is fixedlyed connected with carbon anode 1, and a plurality of carbon anodes that are connected on the same positive bar 5 by anode claw 3 and anode rod 2 are a carbon anode group; Distance between the adjacent carbon anode of same carbon anode group is 30mm; Centre joint width between two carbon anode groups is 40mm;
The top of this aluminium cell anode structure is provided with more than one blanking device, and there is a crust-breaking chips 4 each blanking device bottom;
Be equipped with vee on 4 nearest adjacent carbon anodes of each crust-breaking chips bottom, the vee on each adjacent carbon anode and the slit between the adjacent carbon anode constitute feed opening, each feed opening lay respectively at a crust-breaking chips 4 under; The horizontal section of feed opening is a rectangle, and each length of side is 200mm; The axis of each crust-breaking chips passes through the center of each feed opening respectively;
Adopt said apparatus to carry out electrolysis of aluminum in the usual way on aluminium cell, carbon anode shadow area on negative electrode obviously increases, and the current efficiency in the aluminium electrolysis process improves, loss of voltage, and the calorific loss of upper part of the electrolytic cell obviously reduces.
The aluminium cell anode structure of the newly-built densely arranged carbon anode of the narrow centre joint is with embodiment 1, difference is: be equipped with rectangular indentation on 2 nearest adjacent carbon anodes of each crust-breaking chips bottom, rectangular indentation on each adjacent carbon anode and the slit between the adjacent carbon anode constitute feed opening, each feed opening lay respectively at a crust-breaking chips 4 under; The horizontal section of feed opening is a rectangle, and each length of side is 100mm; Structure as shown in Figure 3;
Adopt said apparatus to carry out electrolysis of aluminum in the usual way on aluminium cell, carbon anode shadow area on negative electrode obviously increases, and the current efficiency in the aluminium electrolysis process improves, loss of voltage, and the calorific loss of upper part of the electrolytic cell obviously reduces.
On original aluminium cell, transform, carbon anode is changed, because the position of blanking device and anode rod is fixing, therefore the tup of blanking device may be just in time above between adjacent two carbon anodes of two carbon anode groups, perhaps be positioned at the top of adjacent four carbon anodes of two carbon anode groups, the aluminium cell anode structure of the densely arranged carbon anode of the narrow centre joint that forms after transforming as shown in Figure 4, comprise carbon anode 1, anode claw 3, anode rod 2 and positive bar 5, each positive bar 5 is connected with a plurality of anode rods 2, each anode rod 2 is connected with an anode claw 3, each anode claw 3 is fixedlyed connected with a carbon anode 1, and a plurality of carbon anodes that are connected on the same positive bar 5 by anode claw 3 and anode rod 2 are a carbon anode group; Distance between the adjacent carbon anode of same carbon anode group is 30mm; Centre joint width between two carbon anode groups is 50mm;
The top of this aluminium cell anode structure is provided with more than one blanking device, and there is a crust-breaking chips 4 each blanking device bottom; Wherein be provided with breach with each crust-breaking chips bottom nearest 2 or 4 adjacent carbon anodes, breach on each adjacent carbon anode and the slit between the adjacent carbon anode constitute feed opening, each feed opening lay respectively at a crust-breaking chips 4 under; When being positioned at the middle part of adjacent two carbon anodes under the crust-breaking chips, a vee respectively is set at the middle part of adjacent two carbon anodes; When under the crust-breaking chips between adjacent four carbon anodes the time, a vee respectively is set in the bight of adjacent four carbon anodes; When crust-breaking chips is positioned at the bight of adjacent two carbon anodes, a rectangular indentation is set in the bight of adjacent two carbon anodes;
The horizontal section of feed opening is each length of side 300mm rectangle; The axis of each crust-breaking chips passes through the center of each feed opening respectively;
Adopt said apparatus to carry out electrolysis of aluminum in the usual way on aluminium cell, carbon anode shadow area on negative electrode obviously increases, and the current efficiency in the aluminium electrolysis process improves, loss of voltage, and the calorific loss of upper part of the electrolytic cell obviously reduces.
The aluminium cell anode structure of the newly-built densely arranged carbon anode of the narrow centre joint as shown in Figure 5, A-A face structure comprises little carbon anode 6, anode claw 3, anode rod 2 and positive bar 5 as shown in Figure 6; Each positive bar 5 is connected with a plurality of anode rods 2, each anode rod 2 is connected with an anode claw 3, each anode claw 3 is fixedlyed connected with four little carbon anodes 6, forms a carbon anode group by all little carbon anodes that anode claw 3 and anode rod 2 are connected on the same positive bar 5; Distance between the adjacent little carbon anode of same carbon anode group is 20mm; Centre joint width between two row's carbon anode groups is 30mm;
The top of this aluminium cell anode structure is provided with more than one blanking device, and there is a crust-breaking chips 4 each blanking device bottom;
Be provided with vee with nearest four little carbon anode bights, each crust-breaking chips 4 bottom, slit between breach on each little carbon anode and the adjacent little carbon anode constitutes feed opening, a plurality of feed openings lay respectively at the below of a crust-breaking chips, and each feed opening is relative with a crust-breaking chips bottom;
The horizontal section of each feed opening is the rectangle of 150mm for each length of side; The axis of each crust-breaking chips is by the center of feed opening;
Adopt said apparatus to carry out electrolysis of aluminum in the usual way on aluminium cell, carbon anode shadow area on negative electrode obviously increases, and the current efficiency in the aluminium electrolysis process improves, loss of voltage, and the calorific loss of upper part of the electrolytic cell obviously reduces.
The aluminium cell anode structure of the newly-built densely arranged carbon anode of the narrow centre joint is with embodiment 4, and difference is:
(1) distance between the adjacent little carbon anode of same carbon anode group is 40mm; Centre joint width between two row's carbon anode groups is 50mm;
(2) in two of each blanking device bottom little carbon anode groups, be provided with rectangular indentation with nearest two little carbon anode bights, crust-breaking chips 4 bottoms, the slit between breach on each little carbon anode and the adjacent little carbon anode constitutes feed opening; Structure as shown in Figure 7;
(3) horizontal section of each feed opening is the rectangle of each length of side 150mm;
Adopt said apparatus to carry out electrolysis of aluminum by usual manner on aluminium cell, carbon anode shadow area on negative electrode obviously increases, and the current efficiency in the aluminium electrolysis process improves, loss of voltage, and the calorific loss of upper part of the electrolytic cell obviously reduces.
Claims (4)
1. the aluminium cell anode structure of the densely arranged carbon anode of the narrow centre joint comprises carbon anode, anode claw, anode rod, positive bar; Each positive bar is connected with plural anode rod, each anode rod is connected with an anode claw, each anode claw is fixedlyed connected with one or more carbon anode, the a plurality of carbon anodes that are connected on the same positive bar by anode claw and anode rod are a carbon anode group, the top of this aluminium cell anode structure is provided with more than one blanking device, there is a crust-breaking chips each blanking device bottom, and the distance between the adjacent carbon anode of wherein same carbon anode group is 20 ~ 50mm; Distance between two carbon anode groups is called the centre joint of aluminium cell anode, and it is characterized in that: the width of the centre joint is 30 ~ 50mm.
2. the aluminium cell anode structure of the densely arranged carbon anode of a kind of narrow centre joint according to claim 1, it is characterized in that being provided with breach with nearest 2 ~ 4 the adjacent carbon anodes in each crust-breaking chips bottom of aluminium cell anode superstructure, breach on each adjacent carbon anode and the slit between the adjacent carbon anode constitute feed opening, each feed opening lay respectively at a crust-breaking chips under.
3. the aluminium cell anode structure of the densely arranged carbon anode of a kind of narrow centre joint according to claim 2 is characterized in that the center of the axis of crust-breaking chips by feed opening.
4. the aluminium cell anode structure of the densely arranged carbon anode of a kind of narrow centre joint according to claim 2, the horizontal section that it is characterized in that feed opening are rectangle or two rhombuses that catercorner length is 200 ~ 400mm of the length of side 100 ~ 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110063297 CN102154664A (en) | 2011-03-16 | 2011-03-16 | Anode structure of aluminum electrolytic cell densely distributed with carbon anodes in narrow centre joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110063297 CN102154664A (en) | 2011-03-16 | 2011-03-16 | Anode structure of aluminum electrolytic cell densely distributed with carbon anodes in narrow centre joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102154664A true CN102154664A (en) | 2011-08-17 |
Family
ID=44436327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110063297 Pending CN102154664A (en) | 2011-03-16 | 2011-03-16 | Anode structure of aluminum electrolytic cell densely distributed with carbon anodes in narrow centre joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102154664A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555023A (en) * | 2012-01-10 | 2012-07-11 | 东北大学 | Vibration forming machine for manufacturing pre-baked anode carbon blocks with holes |
| CN106319566A (en) * | 2015-06-24 | 2017-01-11 | 沈阳铝镁设计研究院有限公司 | Pre-baked anode aluminum electrolytic cell anode configuration method |
| WO2023206892A1 (en) * | 2022-04-29 | 2023-11-02 | 沈阳北冶冶金科技有限公司 | Method for collecting high-temperature anode gas of aluminum electrolysis cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2461940Y (en) * | 2000-09-27 | 2001-11-28 | 李德祥 | Anode block distribution of prebaking anode intermediate blanking aluminium electric tank |
| CN2564588Y (en) * | 2002-09-05 | 2003-08-06 | 沈阳铝镁设计研究院 | Anode for middle-point type blanking prebaking anode Al electrolysing cell |
| CN200971385Y (en) * | 2006-11-14 | 2007-11-07 | 沈阳铝镁设计研究院 | Multi-anode carbon block set structure for cell |
| CN101240433B (en) * | 2008-03-04 | 2010-12-22 | 东北大学设计研究院（有限公司） | Aluminum electrolysis bath anode arrangement scheme |
-
2011
- 2011-03-16 CN CN 201110063297 patent/CN102154664A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2461940Y (en) * | 2000-09-27 | 2001-11-28 | 李德祥 | Anode block distribution of prebaking anode intermediate blanking aluminium electric tank |
| CN2564588Y (en) * | 2002-09-05 | 2003-08-06 | 沈阳铝镁设计研究院 | Anode for middle-point type blanking prebaking anode Al electrolysing cell |
| CN200971385Y (en) * | 2006-11-14 | 2007-11-07 | 沈阳铝镁设计研究院 | Multi-anode carbon block set structure for cell |
| CN101240433B (en) * | 2008-03-04 | 2010-12-22 | 东北大学设计研究院（有限公司） | Aluminum electrolysis bath anode arrangement scheme |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555023A (en) * | 2012-01-10 | 2012-07-11 | 东北大学 | Vibration forming machine for manufacturing pre-baked anode carbon blocks with holes |
| CN102555023B (en) * | 2012-01-10 | 2014-01-01 | 东北大学 | Vibration forming machine for manufacturing pre-baked anode carbon blocks with holes |
| CN106319566A (en) * | 2015-06-24 | 2017-01-11 | 沈阳铝镁设计研究院有限公司 | Pre-baked anode aluminum electrolytic cell anode configuration method |
| WO2023206892A1 (en) * | 2022-04-29 | 2023-11-02 | 沈阳北冶冶金科技有限公司 | Method for collecting high-temperature anode gas of aluminum electrolysis cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100478500C (en) | Abnormal cathode carbon block structure aluminum electrolysis bath | |
| CA2792415C (en) | Cathode structure, aluminum electrolysis cell, and method for lowering horizontal current in aluminum liquid | |
| CN101413136B (en) | Novel cathode structured aluminum cell with longitudinal and transversal wave damping functions | |
| CA2834290C (en) | Method for uniforming distribution of current in aluminum liquid in an aluminum electrolytic tank | |
| CN203065598U (en) | Smelting equipment | |
| CN202989302U (en) | Hook-type continuous prebaked anode assembly for aluminum electrolysis | |
| CN102154664A (en) | Anode structure of aluminum electrolytic cell densely distributed with carbon anodes in narrow centre joints | |
| JP2013537940A (en) | Cathode for electrolysis cell | |
| CN101451249B (en) | Method for eliminating horizontal current in aluminum cell aluminum liquor | |
| CN103014765B (en) | Cathode structure for reducing horizontal current in aluminum liquid | |
| CN201883156U (en) | Anode structure of aluminum electrolysis cell | |
| CN104342720A (en) | Oversize continuous-production energy-saving environment-friendly aluminum electrolysis cell | |
| CN201141044Y (en) | Structure for eliminating horizontal current in aluminum liquid in aluminum cell | |
| CN104213152A (en) | Aluminum electrolysis cell with center joint material blocking partition plate | |
| US11078584B2 (en) | Systems and methods of electrolytic production of aluminum | |
| CN102560546A (en) | Anode structure of aluminum electrolytic tank | |
| CN102230191A (en) | Method for separately leading out single-sided current in aluminum electrolytic cell | |
| CN110029357B (en) | Electrolysis factory building and electrolysis trough overall arrangement structure of aluminium cell series | |
| CN108396334B (en) | Aluminum electrolysis cell cathode structure for reducing horizontal current of aluminum liquid | |
| CN108396333B (en) | Aluminum electrolysis cell cathode structure capable of reducing horizontal current and improving current distribution | |
| CN201354386Y (en) | Aluminum electrolysis bath energy-saving cathode block structure | |
| CN101781773A (en) | Horizontal electricity-outlet aluminium electrolytic bath cathode structure | |
| CN203270054U (en) | Horizontal power inlet aluminium cell | |
| CN104372382A (en) | Rare earth molten salt electrolytic tank for producing rare earth metals and alloys | |
| CN103205776B (en) | Horizontal current-feed aluminum electrolysis cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110817 |