CN202175721U - Stepped carbon paste cathode structure - Google Patents
Stepped carbon paste cathode structure Download PDFInfo
- Publication number
- CN202175721U CN202175721U CN2011202883788U CN201120288378U CN202175721U CN 202175721 U CN202175721 U CN 202175721U CN 2011202883788 U CN2011202883788 U CN 2011202883788U CN 201120288378 U CN201120288378 U CN 201120288378U CN 202175721 U CN202175721 U CN 202175721U
- Authority
- CN
- China
- Prior art keywords
- paste
- cathode
- carbon paste
- insulation material
- temperature insulation
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The utility model discloses a stepped carbon paste cathode structure. A stepped carbon paste surface (4) is arranged close to the electricity discharge end of a cathode steel bar (2); and high-temperature resistant insulating materials are filled at the stepped carbon paste surface (4). The high-temperature resistant materials are ceramic fiber cotton, or other materials with the same effect. Two or more steps are provided. The stepped carbon paste cathode structure has simple construction, obvious effect and high practical value, the material processing problem is avoided, the stepped carbon paste cathode structure is a cathode device for reducing the horizontal current and can be used for modification of the old electrolyzer or design of the new electrolyzer.
Description
Technical field
The utility model relates to a kind of electric tank cathode structure, belongs to technical field of aluminum electrolysis.
Background technology
It is the major cause that causes electrolyzer aluminium fluid wave moving that horizontal current and vertical magnetic field interact, and can cause the voltage pendulum and the aluminium fluid wave is moving.In addition, horizontal current can make electrolyte flow rate accelerate, and erosion stove group destroys burner hearth and causes the groove inner lining damage, influences cell life.So horizontal current all has very big influence to current efficiency, stability, cell life, the origin cause of formation of analysis level electric current and Preventing Countermeasures have profound significance to production management.
Usually, the generation of horizontal current has two reasons in the aluminium liquid layer: (1) is the outer horizontal current of mind-set therefrom, is determined by the electric mode of going out of electrolyzer.Because electric current from anode straight down to the horizontal derivation of rod iron, steering procedure of intermediate demand.(2), have from the periphery to the intermediary horizontal current at the melt edge to produce by the common decision of geometry and electrically conducting manner.This part main because melt some beyond the projection plane of anode and cathode, burner hearth is irregularity more greatly more, this part value will be big more, this part can help to reduce its generation through in final-period management, setting up good stove.
Because the horizontal current
of long axis direction is very little in the electrolyzer aluminium liquid layer; Basically can not consider; That therefore need pay close attention to is
; Be the horizontal current of aluminium liquid layer short-axis direction, the said horizontal current of hereinafter all refers to
.
In the tradition electric tank cathode structure, cathode carbon pieces and cathode steel bar adopt charcoal to stick with paste and fill up in a down-to-earth manner, and so, as previously mentioned, electrolyzer aluminium liquid short-axis direction can produce bigger horizontal current inevitably.420kA electrolyzer with the Guiyang Institute of Al-Mg-Design design is an example, does not do at electric tank cathode structure under the situation of any optimization, and horizontal current MV is at 2721A/m
2, as shown in Figure 1.As can beappreciated from fig. 1, the horizontal current in the aluminium liquid is very big, and its peak reaches 5000A/m
2About.So big horizontal current all has very big influence to current efficiency, stability, cell life.
Summary of the invention
The technical problem that the utility model will solve is, provides a kind of staged to prick to stick with paste cathode construction, greatly current efficiency, stability, cell life all had the deficiency of very big influence to overcome horizontal current that prior art exists.
In order to solve described technical problem, the utility model is taked following technical scheme: stick with paste face at the bundle that stepped shape is set near the cathode steel bar current outlet end, stick with paste the face position at the bundle of stepped shape and fill high-temperature insulation material.
High-temperature insulation material is that ceramic fiber is cotton.
The area that high-temperature insulation material is filled is that traditional charcoal paste is filled 1/18 to 1/8 of the total area;
is worth at 180mm between the 270mm; Satisfy
;
;
; In the formula;
is cathode length;
is the high-temperature insulation material length of the stepped shape of filling;
for prick sticking with paste total height, and
,
are respectively two stagewise height of high-temperature insulation material of the stepped shape of filling.
Cascaded surface quantity is two or more.
Stairstepping comprises trilateral or circular arc.
The utility model construction is simple; Do not have the materials processed problem, effect is a cathode assembly that is very beneficial for reducing horizontal current obviously; Have higher utility, so this cathode construction can use in old electrolyzer transformation or new design of electrolysis cells.
Description of drawings
Fig. 1 is a conventional cathode structure level distribution of current synoptic diagram;
Fig. 2 is structural representation, the front view of the utility model;
Fig. 3 is A-A sectional view of Fig. 2;
Fig. 4 is B-B sectional view of Fig. 2;
Fig. 5 is the utility model cathode construction horizontal current distribution schematic diagram.
Embodiment
The embodiment of the utility model: stick with paste face 4 at the bundle that stepped shape is set near cathode steel bar 2 current output terminals, stick with paste the position of face 4 at the bundle of stepped shape and fill high-temperature insulation material, high-temperature insulation material is that ceramic fiber is cotton.
Among Fig. 3,4,1 is cathode carbon pieces, and 2 is cathode steel bar, and 3 is rod iron paste bundle paste face, and 4 is the bundle paste face of stepped shape.
Among Fig. 4;
is cathode length;
for the high-temperature insulation material length of the stepped shape of filling,
relation with
is:
.
Owing to lean on the contact area of steel bar current outlet end place charcoal piece and rod iron to reduce, therefore can force the past intermediate flow of electric current in the aluminium liquid in this cathode construction, thus the purpose of the electric current that is up to the standard.From calculation result, adopt after the cathode construction of the utility model, horizontal current has obtained remarkable reduction, and its MV is by 2721 original A/m
2Be reduced to 768A/m
2, as shown in Figure 5.
Therefore, prick the cathode construction of sticking with paste with the staged cross section, as long as " ladder " size is reasonable, the controlled levels electric current simultaneously, can suitably increase the cathode steel bar height and come the control cathode pressure drop very effectively.
Claims (5)
1. a staged is pricked and is stuck with paste cathode construction, it is characterized in that: stick with paste face (4) at the bundle that stepped shape is set near cathode steel bar (2) current output terminal, stick with paste face (4) position at the bundle of stepped shape and fill high-temperature insulation material.
2. staged according to claim 1 is pricked and stuck with paste cathode construction, it is characterized in that: high-temperature insulation material is that ceramic fiber is cotton.
3. staged according to claim 1 is pricked and is stuck with paste cathode construction; It is characterized in that: the area that high-temperature insulation material is filled is that traditional charcoal paste is filled 1/18 to 1/8 of the total area;
is worth at 180mm between the 270mm; Satisfy in
formula;
is cathode length;
is the high-temperature insulation material length of the stepped shape of filling;
for prick sticking with paste total height,
be respectively two stagewise height of high-temperature insulation material of the stepped shape of filling.
4. staged according to claim 1 is pricked and stuck with paste cathode construction, it is characterized in that: cascaded surface quantity is two or more.
5. staged according to claim 1 is pricked and is stuck with paste cathode construction, and it is characterized in that: stairstepping comprises trilateral or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202883788U CN202175721U (en) | 2011-08-10 | 2011-08-10 | Stepped carbon paste cathode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202883788U CN202175721U (en) | 2011-08-10 | 2011-08-10 | Stepped carbon paste cathode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175721U true CN202175721U (en) | 2012-03-28 |
Family
ID=45865615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202883788U Expired - Fee Related CN202175721U (en) | 2011-08-10 | 2011-08-10 | Stepped carbon paste cathode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925926A (en) * | 2011-08-10 | 2013-02-13 | 贵阳铝镁设计研究院有限公司 | Step type paste bundling cathode structure |
-
2011
- 2011-08-10 CN CN2011202883788U patent/CN202175721U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925926A (en) * | 2011-08-10 | 2013-02-13 | 贵阳铝镁设计研究院有限公司 | Step type paste bundling cathode structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102453927B (en) | Method for greatly reducing horizontal current in aluminum liquid of aluminum electrolytic cell | |
| CN101805914B (en) | Bottom cathode diversion type rare earth electrolysis cell | |
| CN202047141U (en) | Non-uniformly conductive cathode structure for aluminum electrolytic cell | |
| CN204174293U (en) | A kind of Rare Earth Electrolysis slot device | |
| CN104250831A (en) | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium | |
| CN202175721U (en) | Stepped carbon paste cathode structure | |
| CN201981264U (en) | Cathode carbon block assembly for reducing horizontal current of aluminum liquid layer of electrolytic bath | |
| CA2785868C (en) | Cell bottom structure of reduction cell | |
| CN102925926A (en) | Step type paste bundling cathode structure | |
| CN201224768Y (en) | Middle convergent flow type aluminum cell cathode device | |
| CN201158717Y (en) | Tank bottom upwarp-proof structure of aluminum cell | |
| CN201722432U (en) | Bottom cathode diversion-type rare-earth electrolytic bath | |
| CN102534667B (en) | Reduce method and the cathode block assembly of horizontal current of aluminum liquid layer of electrolytic bath | |
| CN202817102U (en) | Cathode plate grid of lead-acid storage battery for electric vehicle | |
| CN105780055B (en) | The aluminium cell of cathode is used as using aluminium | |
| CN203923400U (en) | Reduce the aluminium electrolysis cathode structure of aluminum liquid horizontal electric current | |
| CN206814855U (en) | A kind of chlorate electrolyser | |
| CN203333778U (en) | Cathode structure capable of saving energy and homogenizing horizontal current in molten aluminium | |
| CN205934047U (en) | Anode rod and steel claw connection structure | |
| CN101423956B (en) | Electric tank cathode structure with conductive plate | |
| CN202181357U (en) | Electrolytic tank capable of greatly reducing horizontal current | |
| CN201864787U (en) | Energy-saving cathode plate for wet-process metallurgy | |
| CN101845641A (en) | Immersion-type rare earth electrolyzer | |
| CN206666655U (en) | tungsten cathode device and electrolytic cell | |
| CN206872960U (en) | A kind of rod iron attachment structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20150810 |
|
| EXPY | Termination of patent right or utility model |