CN203700544U - Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell - Google Patents
Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell Download PDFInfo
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- CN203700544U CN203700544U CN201320677256.7U CN201320677256U CN203700544U CN 203700544 U CN203700544 U CN 203700544U CN 201320677256 U CN201320677256 U CN 201320677256U CN 203700544 U CN203700544 U CN 203700544U
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Abstract
The utility model belongs to the technical field of an aluminum cell, and particularly relates to a trough type refractory material composite structure at the bottom of a cathode carbon block for an aluminum cell. The trough type refractory material composite structure comprises a refractory material structure body with a trough type structure, wherein the structure body comes into close contact with the bottom surface of the cathode carbon block and the surface of a cathode steel rod body protruding out of the bottom surface of the cathode carbon block; a groove coupled to the part of the cathode steel rod body, which protrudes out of the bottom surface of the cathode carbon block, is formed in the upper surface of the structure body; an anti-seepage layer is formed at the lower part of the structure body. According to the manufacturing method, the anti-seepage layer and the refractory material with the trough type structure are built firstly and then the cathode carbon block is installed; or the overall structure of the refractory material is firstly combined with the cathode carbon block to form a whole body, and then the whole body is put on the anti-seepage layer or other thermal insulation materials at the bottom of the trough type refractory material. By adopting the technical scheme disclosed by the utility model, under the condition of no increase of the height of the cathode carbon block, the conductive area of the cathode steel rod can be increased, the resistance of the cathode steel rod is reduced, and the horizontal current inside cathode aluminum liquid of the aluminum cell is reduced.
Description
Technical field
The utility model belongs to aluminium cell technical field, is specifically related to a kind of aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction.
Background technology
Energy-conservation is the core technology content of industrial aluminum electrolysis production, energy-conservation can the realization by improving current efficiency that industrial aluminum electrolysis bath is produced, can be in the situation that current efficiency be subject to too large impact yet, improve reduction bath voltage and realize, and these two kinds of methods and technology also can realize by the stability of electric tank cathode liquid aluminum.The stability of negative electrode liquid aluminum that improves electrolyzer can have several different methods, and one of them very important measure is exactly to realize by reducing in electric tank cathode aluminium liquid along the horizontal current of the cathode steel bar direction of electric tank cathode charcoal piece bottom.
Reduce in electric tank cathode aluminium liquid and can take two kinds of measures along the horizontal current of cathode steel bar current outlet direction, a kind of is the cathode carbon pieces that uses the anthracite-base carbonaceous material that resistivity is relatively high.But adopt the carbonaceous char piece of high resistivity, and can increase the resistance drop of cathode carbon pieces, in identical bath voltage situation, it can make the pole span of electrolyzer reduce, and affects current efficiency.The another kind of measure that reduces the horizontal current in electric tank cathode aluminium liquid is the conductive area that increases cathode steel bar.But the conductive area of increase cathode steel bar also can increase the heat lost by radiation of electrolytic cell cathode steel bar.For addressing this problem, the patent that publication number is CN103255436A has proposed a kind of non-equal section and cathode steel bar can protrude the technology of the cathode steel bar of cathode carbon pieces basal surface.
For traditional electrolyzer, the bottom surface of its cathode carbon pieces basal surface and cathode steel bar on same horizontal plane, thereby the refractory materials contacting with cathode carbon pieces basal surface as the upper surface of antiseepage refractory materials, refractory brick and aluminum oxide etc. be all also flat.In the time of brickwork, bottom is seated on these refractory materialss with the cathode carbon pieces of cathode steel bar.But when using this patented technology, when the cathode carbon pieces that cathode carbon pieces basal surface is stretched out in this cathode steel bar bottom is placed on the Impervious Materials built on flat groove inner lining surface or refractory brick, just run into difficulty.Even if use the antiseepage refractory materials with powdery character also cannot ensure its installation completely and be in place.
Summary of the invention
In order to address the above problem, the utility model provides a kind of aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction, be specially adapted to cathode steel bar bottom and protrude from the cathode carbon pieces unitized construction of cathode carbon pieces basal surface and aluminum electrolytic cell bottom inner lining refractory upper surface and be coupled and carry out brickwork, cathode steel bar protrudes from the cathode carbon pieces of negative electrode basal surface and mating of refractory materials.
Realize the technical solution of the utility model as follows:
Aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction, comprise trench structure structure of refractory body, described trench structure structure of refractory body and cathode carbon pieces basal surface and the cathode steel bar surface close contact that protrudes from cathode carbon pieces basal surface, the upper surface of this trench structure structure of refractory body offers with the cathode steel bar body that protrudes from cathode carbon pieces basal surface and divides the groove being coupled, and the bottom of structure of refractory body is the antiseepage bed of material.
Described grooved structure of refractory body can be cast or the refractory material laying body of making moulding firm by ramming, or is refractory materials brick masonry body.
The manufacture method of the grooved refractory materials unitized construction of aluminium cell is carried out according to following steps:
First construct routinely the bottom land antiseepage bed of material of aluminium cell, by Impervious Materials tamping with smash flat;
Construct afterwards and install the masonry of grooved structure fire resistance material, set out and can divide the groove being coupled with the cathode steel bar body of cathode block basal surface at the masonry upper surface of trench structure refractory materials;
Again the cathode carbon pieces that the cathode steel bar that protrudes from cathode carbon pieces basal surface is installed is placed on trench structure refractory materials masonry, the groove of trench structure refractory materials upper surface is just in time coupled with the cathode steel bar bossy body that protrudes cathode carbon pieces basal surface.
The manufacture method of aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction can also be carried out according to following steps:
First with cast make firm by ramming or other method precast with cathode carbon pieces basal surface and protrude from the cathode steel bar of the part of cathode carbon pieces basal surface can closely-coupled overall grooved structure of refractory body;
There is the cathode carbon pieces of cathode steel bar projection to fit together prefabricated overall grooved structure of refractory body and bottom afterwards;
Finally the unitized construction integral hoisting of cathode carbon pieces, cathode steel bar and grooved structure of refractory body is tamped to body or built by laying bricks or stones above body at the Impervious Materials at the bottom of aluminium cell or other possible refractory materials lagging material.
Compared with prior art, feature of the present utility model and beneficial effect are:
Adopt the technical solution of the utility model, can reach in the height situation that does not increase cathode carbon pieces, increase the conductive area of cathode steel bar, reduce the resistance of cathode steel bar, thereby reach the object that reduces horizontal current in molten cathode aluminum in aluminum electrolysis cell.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the grooved refractory materials unitized construction of aluminium cell in the utility model embodiment.
Wherein: 1: cathode carbon pieces; 2: Carbon ramming paste; 3: cathode steel bar, 4: trench structure structure of refractory body; 5: the antiseepage bed of material.
Embodiment
Further illustrate by the following examples the grooved refractory materials unitized construction of aluminium cell of the present utility model.
Embodiment 1
As shown in Figure 1, a kind of grooved refractory materials unitized construction of aluminium cell, comprise and be positioned at cathode carbon pieces 1 bottom, protrude from the cathode steel bar 3 of cathode carbon pieces 1 basal surface and the refractory materials of aluminium cell bottom land, between cathode steel bar 3 and cathode carbon pieces 1, it is Carbon ramming paste 2, described refractory materials upper surface offers the trench structure being coupled with the cathode steel bar of cathode carbon pieces 1 bottom protrusion, i.e. trench structure refractory materials 4, and the bottom of trench structure refractory materials 4 is antiseepage bed of materials 5.
The manufacture method of the grooved refractory materials unitized construction of aluminium cell is carried out according to following steps:
First construct routinely the bottom land antiseepage bed of material 5 of aluminium cell, by Impervious Materials tamping with smash flat;
Construct afterwards and install the masonry of grooved structure fire resistance material 4, offer the groove that protrudes position coupling with negative carbon 3 at the masonry upper surface of trench structure refractory materials 4;
To be positioned at again cathode carbon pieces 1 bottom, the cathode steel bar 3 that protrudes from cathode carbon pieces 1 basal surface is placed on trench structure refractory materials masonry, makes together with partial coupling that the groove of trench structure refractory materials 4 upper surfaces just in time protrudes from cathode carbon pieces 1 basal surface with cathode steel bar 3.
The masonry structure of grooved refractory materials 4 can be constructed with refractory brick, also can construct with the refractory materials of cast or the refractory materials of making firm by ramming, can also first make its section heterotypic fire brick as shown in Figure 1 and construct.
Embodiment 2
In the present embodiment, the grooved refractory materials unitized construction of aluminium cell and the difference of embodiment 1 are that the trench structure structure of refractory body 4 that the described cathode steel bar 3 with aluminium electrolytic cell cathode charcoal piece 1 bottom protrusion is coupled is prefabricated monolithic refractory.
First with cast make firm by ramming or other method precast with 1 surface at the bottom of cathode carbon pieces and protrude from the cathode steel bar 3 of the part of cathode carbon pieces 1 basal surface can closely-coupled overall grooved structure of refractory body 4;
There is the cathode carbon pieces 1 of cathode steel bar 3 projections to fit together prefabricated overall grooved structure of refractory body 4 and bottom afterwards;
Finally the unitized construction integral hoisting of cathode carbon pieces 1, cathode steel bar 3 and grooved structure of refractory body 4 is tamped to body or built by laying bricks or stones above body at the Impervious Materials at the bottom of aluminium cell or other possible refractory materials lagging material.
Claims (2)
1. an aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction, it is characterized in that comprising trench structure structure of refractory body, described trench structure structure of refractory body and cathode carbon pieces basal surface and the cathode steel bar surface close contact that protrudes from cathode carbon pieces basal surface, the upper surface of this trench structure structure of refractory body offers with the cathode steel bar body that protrudes from cathode carbon pieces basal surface and divides the groove being coupled, and the bottom of structure of refractory body is the antiseepage bed of material.
2. aluminium electrolytic cell cathode charcoal piece according to claim 1 bottom grooved refractory materials unitized construction, is characterized in that described grooved structure of refractory body is cast or the refractory material laying body of making moulding firm by ramming, or is the body of building by laying bricks or stones of refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320677256.7U CN203700544U (en) | 2013-10-31 | 2013-10-31 | Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320677256.7U CN203700544U (en) | 2013-10-31 | 2013-10-31 | Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell |
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| CN203700544U true CN203700544U (en) | 2014-07-09 |
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| CN201320677256.7U Expired - Fee Related CN203700544U (en) | 2013-10-31 | 2013-10-31 | Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556182A (en) * | 2013-10-31 | 2014-02-05 | 东北大学 | Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof |
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2013
- 2013-10-31 CN CN201320677256.7U patent/CN203700544U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556182A (en) * | 2013-10-31 | 2014-02-05 | 东北大学 | Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof |
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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: 20140709 Termination date: 20151031 |
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| EXPY | Termination of patent right or utility model |