CN101555605A - Cathode lining structure with branched guiding gutters for aluminum liquid - Google Patents
Cathode lining structure with branched guiding gutters for aluminum liquid Download PDFInfo
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- CN101555605A CN101555605A CNA2008100895317A CN200810089531A CN101555605A CN 101555605 A CN101555605 A CN 101555605A CN A2008100895317 A CNA2008100895317 A CN A2008100895317A CN 200810089531 A CN200810089531 A CN 200810089531A CN 101555605 A CN101555605 A CN 101555605A
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Abstract
The invention relates to a design scheme of a cathode lining structure of an aluminum electrolytic cell with branched guiding gutters for aluminum liquid. Both sides of a main guiding gutter for aluminum liquid on the upper surface of a cathode carbon block in the electrolytic cell are provided with a branched guiding gutter for aluminum liquid, and aluminum liquid generated in the electrolytic cell can fluently and timely pass through the branched guiding gutters for aluminum liquid and the main guiding gutter to flow into an aluminum containing slot on one end of the electrolytic cell, thus the influence imposed on the electrolyte caused by the magnetic field and the magnetic eddy flow of the aluminum layer can be reduced by means of reducing the aluminum liquid height layer generated in the electrolytic cell, the electrode distance in the electrolytic cell is reduced, and the loss of electric consumption caused by resistance value and voltage drop value is reduced to reach the purpose of reducing the electric consumption of the technology of electrolytic aluminum production.
Description
Technical field;
It is a kind of that the cathode inner lining structure of branched guiding gutters for aluminum liquid is arranged is aluminum cell cathode inner lining structure design novel in.
Background technology:
Aluminium cell is the equipment that is used for Aluminum Electrolysis Production, and its major function is under the effect of low-voltage, high-current, makes aluminum oxide produce the thermoelectrochemistry reaction, generates electrolytic aluminium liquid.
Existing general aluminium cell is made up of cathode inner lining structure and anode construction two parts.
Aluminium electrolysis cathode inner lining structure, its effect provide a powerful electric current of conduction makes aluminum oxide generate the cathode molten pool of electrolytic aluminum.Wherein the upper surface of building the cathode molten pool that forms by laying bricks or stones by cathode block and cathode steel bar and ramming paste is a horizontal plane, is the groundwork face of realizing electric tank cathode conduction, molten bath function.
After electrobath start feeding electric current enters under the work condition state, because the effect of the low voltage between anode and the negative electrode, big electric current, the solid oxidation al dissolution, in the molten cryolitic melt, import direct current and thermal equilibrium state and generate ionogen down, between anode block and cathode block electrochemical reaction taking place, obtain gaseous substance on anode, obtains liquid aluminium immediately on the negative electrode.
In electrolytic process, because the proportion of aluminium liquid precipitates downwards greater than ionogen, be attached between negative electrode upper surface and ionogen (the being liquid oxidatively aluminium) lower surface, form the layer of aluminum liquid layer, the height of aluminium liquid interface in electrolyzer, along with increasing of aluminium liquid interface level, under the effect in electrolysis magnetic field, this aluminium liquid layer is under the effect of strong magnetic field, generation magnetic rotation stream forces the pole span between the anode and the negative electrode utmost point to be raised, and causes electrolyte thickness to strengthen, thereby the volts lost of electrolyzer is raise, the aluminum electrolysis technology power consumption is increased.
Usually whenever increase one centimetre of electrolytical thickness, its resistance drop is about about 120mV, cause about many power consumptions of aluminium 400kwh per ton, this owing to produce into aluminium aluminium liquid interface rising in electrolyzer, and the electrolysis process resistance that the electrolyte thickness that produces increases consumption is the Aluminum Electrolysis Production power consumption that domestic and international aluminum electrolysis industry is all trying every possible means to be reduced.
At present domestic and international aluminum electrolysis industry is with reference to the mentality of designing of some other metallurgical furnace, propose a kind ofly to produce into aluminium aluminium liquid and contain the aluminium groove being provided with one on the electrolyzer, and then in bottom surface, electrolyzer molten bath, just be provided with one on the cathode block upper surface position of center line and produce into aluminium and contain the aluminium liquid diversion trench that aluminium groove one end tilts along its length to having, cause the aluminium liquid that produces in the electrolytic process to flow into to produce into aluminium and contain the aluminium groove along this diversion trench by electrolyzer one end.Make the aluminium liquid height in the electrolyzer keep lower level.To reach the reduction pole span, save the purpose of power consumption.
Thisly be provided with certain slope and the scheme of the design of the aluminium liquid water conservancy diversion mortise that tilts along its length in the cathode inner lining upper horizontal surface, being intended that the aluminium liquid that electrolysis is generated converges to earlier in the water conservancy diversion mortise, though it is feasible again aluminium liquid water conservancy diversion to be gone into to contain the design of aluminium groove, but because cathode material, structure design, many-sided influence such as brick-building art and result of use, rest on the test discussion stage always, do not implemented, wherein major cause is, the aluminium liquid of cathode inner lining upper surface, the aluminium liquid on diversion trench electrolyzer sidepiece cathode block far away particularly, it is poor all to flow into water conservancy diversion, and enters Sheng aluminium groove along diversion trench.
Summary of the invention:
Only be provided with an aluminium liquid diversion trench along its length for overcoming existing design at the negative electrode upper surface, can not all compile and produce into aluminium liquid, and flow into along its diversion trench and to contain the disappearance that aluminium groove is caused, spy of the present invention has proposed the cathode inner lining structure design that a kind of cathode block upper surface has branched guiding gutters for aluminum liquid.
A kind of have the cathode inner lining structure of branched guiding gutters for aluminum liquid mainly to use cathode steel bar, cathode block, sidewall carbon brick, make thickener firm by ramming, materials such as antiseep material and wettable negative electrode titanium boride are built by laying bricks or stones and are formed, the feature of this structure is: at the aluminum cell cathode inner lining upper surface, dominating the chute side along cathode inner lining one end to vertical aluminium liquid that aluminum output port tilts, be provided with some with the branched guiding gutters for aluminum liquid that gradient is arranged, make in the electrolytic process quite a few on the cathode surface produce into aluminium liquid and can flow into earlier and flow into aluminium liquid again behind the branched guiding gutters for aluminum liquid and lead sow (channel), and then flow into aluminium liquid and produce into aluminium and contain the aluminium groove.
According to above-mentioned design, a kind of have the cathode inner lining structure branched guiding gutters for aluminum liquid of branched guiding gutters for aluminum liquid can be arranged on the upper end that adjacent two carbon pieces are made thickener firm by ramming, the horizontal center line of sticking with paste between its horizontal center line and seam is overlapped, the gradient of its each branched guiding gutters for aluminum liquid bottom should be corresponding mutually with the gradient of main aluminium liquid diversion trench, by cathode block upper surface eminence point to pairing main aluminium liquid diversion trench lopsidedness, so that the aluminium liquid of each cathode block upper surface flows into branched guiding gutters for aluminum liquid earlier, flow into main aluminium liquid diversion trench again.
According to above-mentioned design, a kind of whole cathode inner lining upper surface of cathode inner lining structure that branched guiding gutters for aluminum liquid arranged can the horizontal design arrangement of one-tenth, and cathode inner lining upper surface and anode block lower surface integral body are parallel to each other in the middle of electrolytic process.
According to above-mentioned design, a kind of have the section of the cathode inner lining structure aluminium liquid diversion trench of branched guiding gutters for aluminum liquid can be designed to U-shaped, rectangle or V-arrangement.
According to above-mentioned design, a kind of have the cathode inner lining upper surface of the cathode inner lining structure of branched guiding gutters for aluminum liquid can scribble titanium boride, wettable cathode.
According to above-mentioned design, a kind of have the horizontal projection of each cathode block of cathode inner lining structure of branched guiding gutters for aluminum liquid should be corresponding with the horizontal plane of pairing top anode block, and the slit institute between its branched guiding gutters and the anode block is corresponding.
Adopt the above-mentioned design that the aluminum cell cathode inner lining structure of branched guiding gutters for aluminum liquid is arranged, can make the product in the electrolyzer become aluminium liquid can go into to be arranged on the Sheng aluminium groove of electrolyzer one end smoothly by branched guiding gutters for aluminum liquid and major flow concentrated flow.So that with reducing the means of producing into the aluminium liquid height layer in the electrolyzer, reduce the influence to the ionogen generation of aluminium liquid layer magnetic field and magnetic rotation stream, by reducing dielectric substrate height in the electrolyzer, reach and reduce the resistance value in the explained hereafter, the idle power consumption of voltage drop value in the electrolytic aluminum groove.Promptly adopt low polar distance electrolytic bath to produce electrolytic aluminum.
Figure of description:
Fig. 1: a kind of cathode inner lining upper surface figure that branched guiding gutters for aluminum liquid is arranged;
Fig. 2: a kind of cathode inner lining schematic partial sectional view that branched guiding gutters for aluminum liquid is arranged;
Fig. 3: a kind of cathode inner lining cathode block centre joint and branched guiding gutters sectional drawing that branched guiding gutters for aluminum liquid is arranged.
Wherein, shown in a kind of figure: 1, electrolyzer Steel Sheel; 2, cathode steel bar; 3, sidewall carbon brick is made material firm by ramming; 4, cathode block; 5, contain the aluminium groove; 6, branched guiding gutters; 7, leading chute; 8, wettable cathod coating; 9, major flow trench bottom; 10, ramming paste between the seam; 11, the antiseep bed of material; 12, branched guiding gutters bottom.
Specific embodiments:
The cathode inner lining structure that a kind of cathode block upper surface has a branched guiding gutters for aluminum liquid (6) is to realize on former aluminium cell has the aluminum cell cathode inner lining structure basis of diversion trench (7), its construction brick-building art method and plain electrolysers cathode inner lining are basic identical, with cathode steel bar (2), cathode block (4), sidewall carbon brick (3), make thickener (10), antiseep material (11) firm by ramming, wettable negative electrode titanium boride coating materials such as (8) is built by laying bricks or stones and is formed.
Lay earlier by Design Requirement Drawing at the last end of aluminium cell cell body anti-leakage layer (11) and to produce into aluminium aluminium liquid and contain aluminium groove (5), then at cell body anti-leakage layer (11) upper surface, with the cathode block (4) that processes, elder generation builds by laying bricks or stones to guarantee leading chute (7) outlet and to contain docking of aluminium groove (5) mouth to the other end by having Sheng aluminium groove (5) one ends.
Branched guiding gutters for aluminum liquid (6) can be arranged on make firm by ramming between adjacent two carbon pieces (4) seam thickener (10) above, the gradient of its each aluminium liquid branch water conservancy diversion (6) trench bottom should be corresponding mutually with the gradient of main aluminium liquid diversion trench (7), the discrepancy in elevation between each contiguous branch diversion trench (6) equates, by cathode block (4) upper surface eminence point to pairing main aluminium liquid diversion trench (7) lopsidedness, can flow into branched guiding gutters for aluminum liquid (6) earlier with the aluminium liquid that causes each cathode block (4) upper surface, flow into main aluminium liquid diversion trench (7) again.For guaranteeing masonry quality, use gradient slope and section form that sample bar and model are checked splitter box (6) at any time.The section of aluminium liquid diversion trench (6) (7) can be designed to U-shaped, rectangle or V-arrangement.For ramming paste (10) between leading chute (7) and the branched guiding gutters (6) in conjunction with tight, and in order to reduce after cathode block (4) middle part drives leading chute, the influence of thermal stresses anticathode carbon piece (4) section variation in the electrolytic process should adopt cathode block (4) and cathode steel bar (2) middle part to disconnect design in the suggestion design.
The aluminum cell cathode inner lining that has branched guiding gutters (6) can become horizontal design arrangement in the surface on the whole, causes in the middle of electrolytic process, and cathode inner lining upper surface and anode block lower surface integral body are parallel to each other.The horizontal projection that should be taken into account each cathode block (4) in design should be corresponding with the horizontal plane of pairing top anode block, and the slit horizontal projection between its branched guiding gutters and the anode block is corresponding.
The cathode inner lining upper surface that has branched guiding gutters for aluminum liquid can scribble the wettable cathode of titanium boride.
The cathode inner lining that has branched guiding gutters for aluminum liquid (6) not only can be cleared up branched guiding gutters (6) when use is put into production afterwards at change poles, can also clear up leading chute (7) by branched guiding gutters.
A kind of design that the aluminum cell cathode inner lining structure of branched guiding gutters for aluminum liquid is arranged, in the leading chute both sides of electrolyzer inner cathode carbon piece upper surface aluminium liquid, be provided with branched guiding gutters for aluminum liquid, the aluminium liquid that produces in the electrolyzer can go into to be arranged in the Sheng aluminium groove of electrolyzer one end by branched guiding gutters for aluminum liquid and major flow concentrated flow smoothly timely.So just can be with reducing the means of producing into the aluminium liquid height layer in the electrolyzer, reduce the influence to the ionogen generation of aluminium liquid layer magnetic field and magnetic rotation stream, realize reducing the pole span in the electrolyzer, reduce the loss of resistance value and voltage drop value, thereby reach the purpose that reduces the electrolytic aluminium production process power consumption power consumption.
Claims (6)
1, a kind of have the cathode inner lining structure of branched guiding gutters for aluminum liquid mainly to use cathode steel bar, cathode block, sidewall carbon brick, make thickener firm by ramming, materials such as antiseep material and wettable negative electrode titanium boride are built by laying bricks or stones and are formed, the feature of this structure is: at the aluminum cell cathode inner lining upper surface, dominating the chute side along cathode inner lining one end to vertical aluminium liquid that aluminum output port tilts, be provided with some with the branched guiding gutters for aluminum liquid that gradient is arranged, make in the electrolytic process quite a few on the cathode surface produce into aluminium liquid and can flow into earlier and flow into aluminium liquid again behind the branched guiding gutters for aluminum liquid and lead sow (channel), and then flow into aluminium liquid and produce into aluminium and contain the aluminium groove.
2, according to the described a kind of cathode inner lining structure that branched guiding gutters for aluminum liquid is arranged of claim 1, its constitutional features is: branched guiding gutters for aluminum liquid can be arranged on the upper end that adjacent two carbon pieces are made thickener firm by ramming, the horizontal center line of sticking with paste between its horizontal center line and seam is overlapped, the gradient of its each branched guiding gutters for aluminum liquid bottom should be corresponding mutually with the gradient of main aluminium liquid diversion trench, by cathode block upper surface eminence point to pairing main aluminium liquid diversion trench lopsidedness, so that the aluminium liquid of each cathode block upper surface flows into branched guiding gutters for aluminum liquid earlier, flow into main aluminium liquid diversion trench again.
3, according to the described a kind of cathode inner lining structure that branched guiding gutters for aluminum liquid is arranged of claim 1, its constitutional features is: whole cathode inner lining upper surface can become horizontal design arrangement, and cathode inner lining upper surface and anode block lower surface integral body are parallel to each other in the middle of electrolytic process.
4, according to the described a kind of cathode inner lining structure that branched guiding gutters for aluminum liquid is arranged of claim 1, its constitutional features is: the section of aluminium liquid diversion trench can be designed to U-shaped, rectangle or V-arrangement.
5, according to the described a kind of cathode inner lining structure that branched guiding gutters for aluminum liquid is arranged of claim 1, its constitutional features is: the cathode inner lining upper surface can scribble the wettable cathode of titanium boride.
6, according to the described a kind of cathode inner lining structure that branched guiding gutters for aluminum liquid is arranged of claim 1, its constitutional features is: the horizontal projection of each cathode block should be corresponding with the horizontal plane of pairing top anode block, and the slit institute between its branched guiding gutters and the anode block is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100895317A CN101555605A (en) | 2008-04-07 | 2008-04-07 | Cathode lining structure with branched guiding gutters for aluminum liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100895317A CN101555605A (en) | 2008-04-07 | 2008-04-07 | Cathode lining structure with branched guiding gutters for aluminum liquid |
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| CN101555605A true CN101555605A (en) | 2009-10-14 |
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| CNA2008100895317A Pending CN101555605A (en) | 2008-04-07 | 2008-04-07 | Cathode lining structure with branched guiding gutters for aluminum liquid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145132A1 (en) * | 2009-06-19 | 2010-12-23 | 中国铝业股份有限公司 | Cathode structure of aluminum electrolytic cell and aluminum electrolytic cell |
| CN102560539A (en) * | 2010-12-17 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Method for inhibiting voltage swing of aluminum reduction cell and baffle wall-carrying cathode of aluminum reduction cell |
-
2008
- 2008-04-07 CN CNA2008100895317A patent/CN101555605A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145132A1 (en) * | 2009-06-19 | 2010-12-23 | 中国铝业股份有限公司 | Cathode structure of aluminum electrolytic cell and aluminum electrolytic cell |
| CN102560539A (en) * | 2010-12-17 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Method for inhibiting voltage swing of aluminum reduction cell and baffle wall-carrying cathode of aluminum reduction cell |
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Application publication date: 20091014 |