CN103556182A - Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof - Google Patents
Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof Download PDFInfo
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- CN103556182A CN103556182A CN201310525190.4A CN201310525190A CN103556182A CN 103556182 A CN103556182 A CN 103556182A CN 201310525190 A CN201310525190 A CN 201310525190A CN 103556182 A CN103556182 A CN 103556182A
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Abstract
The invention relates to the technical field of an aluminium cell, and particularly relates to a bottom trough refractory material composite structure of an aluminium cell cathode carbon block and a manufacturing method thereof. The bottom trough refractory material composite structure comprises a trough refractory material structure body, wherein the structure body tightly contacts the bottom surface of the cathode carbon block and the surface of a cathode steel rod body protruding on the bottom surface of the cathode carbon block; a groove coupled to the cathode steel rod body part protruding on the bottom surface of the cathode carbon block is formed on the upper surface of the structure body; an anti-seepage layer is arranged at the lower part of the structure body. The manufacturing method comprises the following steps: building the anti-seepage layer and the trough structure refractory material and installing the cathode carbon block, or firstly combining the overall refractory material structure with the cathode carbon block, and then putting the overall combined body on the anti-seepage layer at the bottom of the trough refractory material or other types of thermal insulation materials. By adopting the technical scheme disclosed by the invention, under the condition of not increasing 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 in cathode molten aluminum of the aluminium cell is also reduced.
Description
Technical field
The invention belongs to aluminium cell technical field, be specifically related to a kind of aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction and manufacture method.
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 that improves the negative electrode liquid aluminum of 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.Yet adopt the carbonaceous char piece of high resistivity, 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.Yet the conductive area that increases 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 the technology that a kind of non-equal section and cathode steel bar can protrude 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.When brickwork, bottom is seated on these refractory materialss with the cathode carbon pieces of cathode steel bar.Yet 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 guarantee its installation completely and be in place.
Summary of the invention
In order to address the above problem, the invention provides a kind of aluminium electrolytic cell cathode charcoal piece bottom grooved refractory materials unitized construction and manufacture method, 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 technical scheme of the present invention 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 routinely construct 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, at the masonry upper surface of trench structure refractory materials, set out and can divide the groove being coupled with the cathode steel bar body of cathode block basal surface;
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 whole grooved structure of refractory body;
There is the cathode carbon pieces of cathode steel bar projection to fit together prefabricated whole 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 invention and beneficial effect are:
Adopt technical scheme of the present invention, can not increase in the height situation of cathode carbon pieces reaching, 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.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the grooved refractory materials unitized construction of aluminium cell in the embodiment of the present invention.
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 invention.
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 that the cathode steel bar that protrudes with cathode carbon pieces 1 bottom is coupled, and 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 routinely construct 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, at the masonry upper surface of trench structure refractory materials 4, offer with negative carbon 3 and protrude the groove of position coupling;
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.
The trench structure structure of refractory body 4 that the cathode steel bar 3 with aluminium electrolytic cell cathode charcoal piece 1 bottom protrusion described in the present embodiment 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 whole grooved structure of refractory body 4;
There is the cathode carbon pieces 1 of cathode steel bar 3 projections to fit together prefabricated whole 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 (4)
1. 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 can be 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.
3. the manufacture method of aluminium electrolytic cell cathode charcoal piece according to claim 1 bottom grooved refractory materials unitized construction, is characterized in that carrying out according to following steps:
First routinely construct 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, at the masonry upper surface of trench structure refractory materials, set out and can divide the groove being coupled with cathode carbon pieces basal surface cathode steel bar body;
The cathode carbon pieces of laying the cathode steel bar that protrudes from cathode carbon pieces basal surface is placed on trench structure refractory materials masonry, the groove that makes trench structure refractory materials upper surface is just in time together with protruding from the cathode steel bar partial coupling of cathode carbon pieces basal surface again.
4. the manufacture method of aluminium electrolytic cell cathode charcoal piece according to claim 1 bottom grooved refractory materials unitized construction, is characterized in that following steps carry out:
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 whole grooved structure of refractory body;
There is the cathode carbon pieces of cathode steel bar projection to fit together prefabricated whole 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310525190.4A CN103556182A (en) | 2013-10-31 | 2013-10-31 | Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof |
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| CN201310525190.4A CN103556182A (en) | 2013-10-31 | 2013-10-31 | Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073321A (en) * | 2016-09-28 | 2018-12-21 | 中外炉工业株式会社 | Refractory material structural body |
| WO2021104167A1 (en) * | 2019-11-27 | 2021-06-03 | 青岛睿曦绿业新材料科技有限公司 | Suspension type refractory thermal-insulation assembly for large-capacity oxygen-aluminum co-production electrolytic cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200964442Y (en) * | 2006-06-30 | 2007-10-24 | 东北大学设计研究院（有限公司） | Aluminum cell bus collocation structure |
| CN201141044Y (en) * | 2007-12-11 | 2008-10-29 | 沈阳铝镁设计研究院 | Structure for eliminating horizontal current in aluminum liquid in aluminum cell |
| CN103255436A (en) * | 2013-03-04 | 2013-08-21 | 沈阳北冶冶金科技有限公司 | Cathode carbon block and cathode steel bar combined structure of aluminium electrolytic bath |
| CN203700544U (en) * | 2013-10-31 | 2014-07-09 | 东北大学 | Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell |
-
2013
- 2013-10-31 CN CN201310525190.4A patent/CN103556182A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200964442Y (en) * | 2006-06-30 | 2007-10-24 | 东北大学设计研究院（有限公司） | Aluminum cell bus collocation structure |
| CN201141044Y (en) * | 2007-12-11 | 2008-10-29 | 沈阳铝镁设计研究院 | Structure for eliminating horizontal current in aluminum liquid in aluminum cell |
| CN103255436A (en) * | 2013-03-04 | 2013-08-21 | 沈阳北冶冶金科技有限公司 | Cathode carbon block and cathode steel bar combined structure of aluminium electrolytic bath |
| CN203700544U (en) * | 2013-10-31 | 2014-07-09 | 东北大学 | Trough type refractory material composite structure at bottom of cathode carbon block for aluminum cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073321A (en) * | 2016-09-28 | 2018-12-21 | 中外炉工业株式会社 | Refractory material structural body |
| WO2021104167A1 (en) * | 2019-11-27 | 2021-06-03 | 青岛睿曦绿业新材料科技有限公司 | Suspension type refractory thermal-insulation assembly for large-capacity oxygen-aluminum co-production electrolytic cell |
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Application publication date: 20140205 |