CN203411621U - Cathode lining structure of aluminum electrolytic cell - Google Patents
Cathode lining structure of aluminum electrolytic cell Download PDFInfo
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- CN203411621U CN203411621U CN201320401927.7U CN201320401927U CN203411621U CN 203411621 U CN203411621 U CN 203411621U CN 201320401927 U CN201320401927 U CN 201320401927U CN 203411621 U CN203411621 U CN 203411621U
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Abstract
The utility model relates to a cathode lining structure of an aluminum electrolytic cell. The structure comprises a cell shell, an inclined surface, a carbon element cathode and a bottom structure, wherein the carbon element cathode comprises a cathode carbon block and a cathode steel bar; the bottom structure comprises one layer of ceramic fiber plates, one layer of calcium silicate plates and two layers of heat insulating bricks; the periphery of the second layer of heat insulating bricks is provided with the ceramic fiber plates, one layer of dry anti-leaking material and the cathode carbon block; the inclined surface adopts one layer of asbestos plates, one layer of ceramic fiber plates and one layer of calcium silicate plates; the longitudinal end of the cathode carbon block is provided with a pouring material; side surface heat insulating bricks and the ceramic fiber plates are built between the pouring material and the cell shell; a second pouring material is arranged in the lateral direction of the cathode carbon block, and a side carbon block is mounted on the second pouring material; a ceramic fiber layer is arranged between the side carbon block and the cell shell; surrounding paste is filled in gaps of the cathode carbon block, the side carbon block, the first pouring material and the second pouring material. According to the structure, stability and the electric energy utilization rate of the electrolytic cell are improved, energy consumption is reduced, and phenomenon of obese legs at corners of the electrolytic cell is avoided.
Description
Technical field
The utility model relates to a kind of structure of aluminium cell, particularly a kind of aluminum electrolysis bath novel cathode inner lining structure.
Background technology
The basic process of production of aluminium cell is that direct current enters carbon anode by riser bus bar, positive bar, anode rod, there is electrochemical reaction in the interface in carbon anode and sodium aluminum fluoride electrolyte melt, the alumina eltrolysis being dissolved in sodium aluminum fluoride electrolyte melt is become to liquid electrolytic aluminum, be deposited on bottom of electrolytic tank, carbon anode constantly consumes and carbon dioxide gas.Galvanic current flows to the carbon cathode of its below again through liquid metal aluminium, finally by the cathode steel bar being embedded in carbon cathode, from electrolyzer both sides, flow out, and by bottom land bus, enters next electrolyzer.In nearly 20 years, current efficiency increases less than 3%, direct current consumption reduces not enough 700kWh/t, thereby electrolysis of aluminum is that high energy consumption, low-energy-efficiency are produced, especially Aluminium Electrolysis is low margin age at present, and whole aluminium market is comparatively low, and each large enterprises of electrolytic aluminum are all implementing low voltage production technique, in this process, occur problems, electrolyzer energy is uneven, hypertrophy is stretched one's legs in bight, electrolyte level is on the low side etc.Trace it to its cause, traditional cell construction and inner lining structure are one of its important factors.
Therefore, be necessary to design a kind of novel aluminum cell cathode inner lining structure, to overcome above-mentioned defect.
Summary of the invention
The purpose of this utility model aims to provide and a kind ofly can improve electrolyzer stability and utilization rate of electrical, and overcomes the stretch one's legs aluminum cell cathode inner lining structure of loose phenomenon of electrolyzer bight.
The purpose of this utility model is achieved in that this aluminum cell cathode inner lining structure comprises pot shell, inclined-plane, carbon cathode and bottom construction, and carbon cathode comprises cathode carbon pieces and cathode steel bar; Bottom construction comprises one deck ceramic beaverboard, one deck calcium silicate board and two-layer insulating brick, in the surrounding of second layer insulating brick, ceramic beaverboard, one deck dry type impervious material and cathode carbon pieces is set; Inclined-plane adopts asbestos plate, ceramic beaverboard, each one deck of calcium silicate board; At cathode carbon pieces direction end socket, there is mould material, between mould material and pot shell, built side insulating brick and ceramic beaverboard by laying bricks or stones; Side direction at cathode carbon pieces has the second mould material, on the second mould material, is side wall carbon block, between side wall carbon block 1 and pot shell, is provided with ceramic fiber layer, is filled with around sticks with paste in the gap of cathode carbon pieces, side wall carbon block, mould material and the second mould material.
Preferably, at cathode steel bar, being also filled with cathode steel bar around sticks with paste.
Preferably, described side wall carbon block is special-shape carbon block.
The utility model is owing to adopting technique scheme, and tool has the following advantages: 1, improved stability and the utilization rate of electrical of electrolyzer, reduced energy consumption; 2, reduced the electrolyzer bight loose phenomenon of stretching one's legs.
Accompanying drawing explanation
Fig. 1 is transverse sectional view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
In figure: 1, side wall carbon block; 2, around stick with paste; 3, mould material; 4, calcium silicate board; 5, cathode carbon pieces; 6, cathode steel bar; 7, dry type impervious material; 8, cathode steel bar is stuck with paste; 9, insulating brick; 10, ceramic beaverboard.
Embodiment
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail.
As illustrated in fig. 1 and 2, a kind of aluminum cell cathode inner lining structure, comprise pot shell, inclined-plane, carbon cathode and bottom construction, carbon cathode comprises cathode carbon pieces 5 and cathode steel bar 6, bottom construction comprises one deck ceramic beaverboard 10, one deck calcium silicate board 4 and two-layer insulating brick 9, in the surrounding of the second layer (upper strata) insulating brick, ceramic beaverboard 10, one deck dry type impervious material 7 and cathode carbon pieces 5 is set; Inclined-plane adopts asbestos plate, ceramic beaverboard 10, calcium silicate board 4 each one decks; At cathode carbon pieces 5 direction end sockets, there is mould material 3, between mould material 3 and pot shell, built side insulating brick and ceramic beaverboard 10 by laying bricks or stones; Side direction at cathode carbon pieces 5 has the second mould material, it on the second mould material, is side wall carbon block 1, between side wall carbon block 1 and pot shell, be provided with ceramic fiber layer, in the gap of cathode carbon pieces 5, side wall carbon block 1, mould material 3 and the second mould material, be filled with and stick with paste 2 around.
At cathode steel bar 6, be also filled with cathode steel bar around and stick with paste 8.
Mould material 3 adopts high-strength mould material, and the second mould material adopts lightening casting material.
Side wall carbon block 1 adopts special-shape carbon block.
This aluminum electrolysis bath energy-saving novel cathode liner structure, the structure of cathode steel bar and the material that charcoal is stuck with paste when strengthening electrolyzer insulation, have been adjusted, (1) reduce horizontal current in electrolyzer, reduce the fluctuation of electrolyzer liquid aluminum, improved the stability of electrolyzer, realize electrolyzer and can produce by efficient stable under low voltage, improved current efficiency, greatly reduce direct current consumption; (2) improve the electric conductivity of cathode carbon pieces and cathode steel bar, thereby reduced cathode drop, improved utilization rate of electrical; (3) electrolyzer is taked interior heat preservation technology, under low voltage, can keep preferably energy balance, greatly reduces the electrolyzer bight loose phenomenon of stretching one's legs.Finally can keep electrolyzer high-efficiency energy-saving long-life to produce, current efficiency is more than 93%, the ton aluminum direct current consumes≤12240Kw.h, and cell life is more than 1800 days.
With way of example, the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any changes of doing based on the utility model or modification all belong to the claimed scope of the utility model.
Claims (3)
1. an aluminum cell cathode inner lining structure, is characterized in that, comprises pot shell, inclined-plane, carbon cathode and bottom construction, and described carbon cathode comprises cathode carbon pieces and cathode steel bar; Described bottom construction comprises one deck ceramic beaverboard, one deck calcium silicate board and two-layer insulating brick, in the surrounding of second layer insulating brick, ceramic beaverboard, one deck dry type impervious material and cathode carbon pieces is set; Described inclined-plane adopts asbestos plate, ceramic beaverboard, each one deck of calcium silicate board; At cathode carbon pieces direction end socket, there is mould material, between mould material and pot shell, built side insulating brick and ceramic beaverboard by laying bricks or stones; Side direction at cathode carbon pieces has the second mould material, on the second mould material, is side wall carbon block, between side wall carbon block 1 and pot shell, is provided with ceramic fiber layer, is filled with around sticks with paste in the gap of cathode carbon pieces, side wall carbon block, mould material and the second mould material.
2. a kind of aluminum cell cathode inner lining structure according to claim 1, is characterized in that, is also filled with cathode steel bar around sticks with paste at described cathode steel bar.
3. a kind of aluminum cell cathode inner lining structure according to claim 1, is characterized in that, described side wall carbon block is special-shape carbon block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320401927.7U CN203411621U (en) | 2013-07-01 | 2013-07-01 | Cathode lining structure of aluminum electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320401927.7U CN203411621U (en) | 2013-07-01 | 2013-07-01 | Cathode lining structure of aluminum electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
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| CN203411621U true CN203411621U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320401927.7U Expired - Fee Related CN203411621U (en) | 2013-07-01 | 2013-07-01 | Cathode lining structure of aluminum electrolytic cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400053A (en) * | 2016-06-22 | 2017-02-15 | 贵阳铝镁设计研究院有限公司 | Integrally-formed aluminum electrolytic cell based on cathode inner liner and integral forming method thereof |
| CN107709625A (en) * | 2015-07-24 | 2018-02-16 | 俄铝工程技术中心有限责任公司 | For the cathode assembly of the reduction cell for aluminum production, the method (variant) of liner is set |
-
2013
- 2013-07-01 CN CN201320401927.7U patent/CN203411621U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709625A (en) * | 2015-07-24 | 2018-02-16 | 俄铝工程技术中心有限责任公司 | For the cathode assembly of the reduction cell for aluminum production, the method (variant) of liner is set |
| CN106400053A (en) * | 2016-06-22 | 2017-02-15 | 贵阳铝镁设计研究院有限公司 | Integrally-formed aluminum electrolytic cell based on cathode inner liner and integral forming method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
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Effective date of registration: 20190304 Granted publication date: 20140129 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220304 Granted publication date: 20140129 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190701 |