CN101864580B - Aluminum electrolysis bath embedded with stud bumps on upper surface of cathode block - Google Patents
Aluminum electrolysis bath embedded with stud bumps on upper surface of cathode block Download PDFInfo
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- CN101864580B CN101864580B CN2010102209808A CN201010220980A CN101864580B CN 101864580 B CN101864580 B CN 101864580B CN 2010102209808 A CN2010102209808 A CN 2010102209808A CN 201010220980 A CN201010220980 A CN 201010220980A CN 101864580 B CN101864580 B CN 101864580B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
Abstract
The invention discloses an aluminum electrolysis bath embedded with a stud bump on the upper surface of a cathode block. The cathode block consists of a cathode block substrate and the stud bumps on the upper surface of the cathode block substrate; and the stud bumps are embedded in the upper surface of the cathode block substrate. The effect of various selections of the materials and manufacturing methods for the cathode block substrate is achieved by embedding the stud bumps in the cathode block substrate; and the cathode block has the advantages of small machining amount and low cost, and the electrolysis bath has the advantage of reducing the flow velocity and the fluctuation of aluminum liquid more obviously to work normally at low bath voltage.
Description
Technical field
The invention belongs to technical field of aluminum electrolysis, particularly a kind of aluminium cell of embedded with stud bumps on upper surface of cathode block.
Background technology
At present, industrial fine aluminium is to produce with the method for sodium aluminum fluoride-aluminum oxide fused salt electrolysis, and the anode of used electrolyzer is to be combined by the anode block that after-smithing petroleum coke is produced.The negative electrode of electrolyzer also is that the carbon piece assembles, and each cathode block bottom of electrolyzer is equipped with rod iron, and the two ends of rod iron stretch out in two sides of electrolyzer, and are connected with negative busbar, bond with charcoal element paste between cathode block and the cathode block.
At present industrial used aluminium electrolysis cell cathode carbon block mostly is that hard coal after the high-temperature calcination makes, for electroconductibility and anti-sodium and the electrolytical corrosion function that increases cathode block, also in the batching of the electric calcined anthracite carbon piece that uses widely, add synthetic graphite.The content of synthetic graphite generally account for whole cathode block aggregate batching 30～50%, be referred to as the cathode block of semi-graphite; Also useful full graphite matter carbon piece, so-called full graphite cathode carbon block be exactly the skeletal grain material batching (comprising powder-granule material) of making cathode block be 100% synthetic graphite.In addition, for the function that makes cathode block have less resistance and better anti-sodium and electrolyte corrosion has less cathode drop and the cell life of Geng Gao with the negative electrode that can make electrolyzer, the electrolyzer of many comparatively large capacities is also brought into use graphitization cathode carbon block or the semi-graphited cathode block of being made by refinery coke fully.After but the cathode block of aluminium cell uses semi-graphite, graphite matter and graphited cathode block, along with the increase of synthetic graphite component concentration in the cathode block, in its intensity and the anti-electrolyzer aluminium liquid wash away and the abrasion ability also worse and worse.
2007, Northeastern University's Feng Naixiang was invented a kind of special-shaped cathode structure aluminum electrolysis bath, and the characteristics of this cathode construction aluminium cell are that the cathode block surface is with bulge-structure.This bulge-structure has and greatly reduces flow rate of aluminium liquid and reduce metal wave, increase the stable function of electrolyzer aluminium liquid, thereby so that the bath voltage of electrolyzer reduces greatly, current efficiency has also had further raising, has obtained the effect that greatly reduces the aluminium cell power consumption.
The special-shaped cathode structure aluminum electrolysis bath, it is the ability that the projection on the cathode block of electrolyzer must have reasonable antikathode aluminium liquid to wash away that important technology of its negative electrode is required, traditional calcined anthracite is that the cathode block of main raw has the ability that stronger antikathode aluminium liquid washes away, the practice of special-shaped cathode structure electrolysis groove produced in series shows, cathode surface has the smokeless coal piece that contains 30% synthetic graphite of bulge-structure, the consumption of projection can be reduced to 10mm/ on its cathode surface, and the height of cathode bulging has 110mm, so the bulge-structure that its cathode block surface take hard coal as main aggregate materials making has can satisfy the requirement of aluminium cell to the life-span of its cathode block projection.
Yet for the graphite cathode carbon block take synthetic graphite as main aggregate materials, or graphitization cathode carbon block, the ability that its anti-aluminium liquid washes away will can not show a candle to the cathode block take hard coal as main aggregate materials, the ability that its anti-aluminium liquid washes away, and the latter is the former several times.Therefore, the cathode block that its surface that turns to material with graphite matter or graphite has bulge-structure can not satisfy the requirement of special-shaped cathode structure electrolysis groove to its cathode surface projection life-span well.In addition, its surface has the aluminium electrolysis cell cathode carbon block with the perpendicular lateral projection structure of the longitudinal direction of cathode carbon block of electrolytic bath, and not only amount of finish is large, and the consumption of its material is large, therefore materials cost and cost process cost are increased, production cost is higher.
Summary of the invention
For the problems referred to above, the invention provides a kind of aluminium cell of embedded with stud bumps on upper surface of cathode block, by the surface at smokeless coal piece, perhaps in the upper surface inlay protrusion structure of full graphite matter, semi-graphited or complete graphited cathode block matrix, make cathode block have stronger anti-aluminium liquid scouring capability.
The aluminium cell that cathode block upper surface of the present invention is inlaid with cylindricality charcoal element projection comprises pot shell, groove liner flame-proof thermal insulation material, sidepiece carbon brick, cathode block and cathode steel bar, be filled with the charcoal element between each cathode block and stick with paste, make firm by ramming with charcoal element paste between each cathode block and the sidepiece carbon brick; Wherein cathode block is made of the column-shaped projection of cathode block matrix and upper surface thereof, and column-shaped projection is embedded in the upper surface of cathode block matrix.
Be filled with graphite between above-mentioned column-shaped projection and the cathode block matrix and stick with paste, it is the mashed prod that thermosetting resin and Graphite Powder 99 are mixed that described graphite is stuck with paste.
Above-mentioned cathode block matrix is rectangular parallelepiped, and its upper surface is provided with groove, and column-shaped projection is by the upper surface of recess-mounted at the cathode block matrix.
Above-mentioned column-shaped projection is rectangular parallelepiped or right cylinder.
Above-mentioned column-shaped projection is by calcined anthracite, or the mixture of calcined anthracite and synthetic graphite, or broken artificial graphite is that aggregate and pitch kneading and compacting process by roasting, or is processed into by artificial graphite electrode and graphite block; When column-shaped projection was right cylinder, the part side that is inserted into the cathode block matrix was processed with outside screw.
In the above-mentioned electrolyzer, when column-shaped projection is rectangular parallelepiped, the length direction of column-shaped projection is vertical with the length direction of cathode block matrix, width at the cathode block matrix is under the condition of 50～70cm, the length of column-shaped projection is 21～35cm, and width is 17～30cm, and the difference of altitude of column-shaped projection and cathode block body upper surface is 9～15cm, when the width of cathode block matrix increased, the length of column-shaped projection increased in the ratio that the cathode block matrix width increases.
In the above-mentioned electrolyzer, when column-shaped projection is right cylinder, when the width of cathode block matrix is 50～70cm, the diameter of column-shaped projection is 17～35cm, the difference of altitude of column-shaped projection and cathode block body upper surface is 9～15cm, when the width of cathode block increased, the diameter of column-shaped projection increased in the ratio that the cathode block matrix width increases.
In the above-mentioned electrolyzer, column-shaped projection is arranged by two rows or three rows along cathode block body upper surface length direction, and adjacent two rows' column-shaped projection is staggered; Width at the cathode block matrix is under the condition of 50～70cm, spacing in the same organ timbering shape projection between adjacent two column-shaped projections is 17～35cm, the spacing of different rows' adjacent column-shaped projection is 5～20cm on the same cathode block, and the spacing between two simultaneously adjacent with aluminium flowing-out mouth column-shaped projections is 30～70cm.
The degree of depth of above-mentioned column-shaped projection in the cathode block matrix is 5～10cm.
The preparation method of the cathode block of aluminium cell of the present invention carries out according to the following steps:
1, the method for preparing the cathode block matrix is divided into two kinds:
1. adopt pressing method to produce the cathode block matrix, when the section of its matrix is the rectangular surfaces of rule, produce the green compact of cathode block matrix, through making the cathode block matrix of hard coal or graphite matter after 1100～1300 ℃ of roastings, perhaps carry out again making after 2300～2500 ℃ of high-temperature heat treatment first the cathode block matrix of semi-graphited through 1100～1300 ℃ of roastings, then be machined to the circular pit groove that the degree of depth is 5-10cm in the position that the cathode block body upper surface need to be inlayed stud bump, and processing internal thread at hole groove sidewall, this internal thread matches with the outside screw of cylindrical column-shaped projection;
When 2. cathode block matrix green compact are made of vibratory compaction or compression-moulding methods, the basal surface of the weight in the used vibratory compaction mould above the material changes traditional plane and becomes to have bulge-structure, or during compression molding in the mould basal surface of the pressing mold on the material change traditional plane and have bulge-structure on its surface; After the vibratory compaction of cathode block matrix or compression molding, the upper surface of vibratory compaction or compression molding cathode block matrix green compact has out just had the hole groove that is used for settling stud bump like this; Wherein the position distribution of the bulge-structure on the interior material pressing mold basal surface of the weight basal surface of material or mould wants the position of embedded with stud bumps corresponding with the cathode block body upper surface in the mould; It is consistent that the shape of bulge-structure and its upper surface that want vibratory compaction or compression molding are produced will be inlayed the shape of hole groove of stud bump; The degree of depth of hole groove is 5-10cm; When the cathode block matrix is hard coal cathode block matrix, graphite cathode carbon block matrix or semi-graphite cathode carbon block base body, above-mentioned cathode block matrix green compact 1100～1300 ℃ of roastings, are made the cathode block matrix with the hole groove; When the cathode block matrix is the cathode block matrix of greying or semi-graphited, roasting method and method and the method for making the hole groove be roast method and to make the method for cheating groove identical 1., in graphitizing furnace, under 2300～3000 ℃ of conditions, carry out pyroprocessing after the roasting, make semi-graphited or full graphitization cathode carbon block matrix; The cathode block body upper surface the hole groove be divided into circular pit groove and square hole groove; When the hole groove was circle, the inwall of hole groove was processed with internal thread, and this internal thread matches with the outside screw of cylindrical column-shaped projection; When the hole groove was square hole groove, its inwall had at least 4 diameters to be not less than 5mm, and the degree of depth is not less than the round pool of 10mm;
2, be mixed and made into graphite with thermosetting resin and Graphite Powder 99 and stick with paste, ratio requirement can be mixed and made into mashed prod; The graphite paste is inserted in the groove of hole; Then column-shaped projection is packed in the groove of hole, wherein when column-shaped projection was rectangular parallelepiped, the hole groove also was square hole groove, and the length and width size of hole groove is greater than the length and width size 1～10mm of column-shaped projection, and the rectangular parallelepiped column-shaped projection vertically is pressed in the groove of hole; When column-shaped projection when being cylindrical, the hole groove be circle, and sidewall is processed with internal thread; Outside screw on the column-shaped projection matches with the internal thread of hole in the groove, and column-shaped projection is screwed in the groove of hole, also has graphite to stick with paste between internal thread and outside screw slit and fills; After column-shaped projection enters the hole groove, with being extruded out the slit of some graphite paste between projection and hole groove, be deposited in the place that the cathode block body upper surface engages with column-shaped projection in the groove of hole.
In the roasting aluminum electrolytic bath process, the thermosetting resin during graphite is stuck with paste is discharged fugitive constituent and is carried out carbonization, makes more tight that column-shaped projection is connected with the cathode block matrix.
The working conditions of the aluminium cell of embedded with stud bumps on upper surface of cathode block of the present invention when carrying out electrolysis of aluminum is: the column-shaped projection of cathode block all will be immersed in the aluminium liquid, it is electrolyte melt above the aluminium liquid, the height of liquid aluminum will exceed the upper surface of projection, be 1～10cm after going out aluminium, the operating voltage of electrolyzer is between 3.5～3.9V.
The present invention is by embedded with stud bumps on the cathode block matrix, make whole cathode block when possessing the filtrate of minimizing fluctuation ability, can freely select the material of cathode block matrix, reach the enhancing of anticathode carbon piece work capacity and improve the effect in cathode block life-span; Adopt simultaneously the mode of embedded with stud bumps on the cathode block matrix, on cathode block, directly prepare protruding method and compare with original, also have an amount of finish little, the advantage that cost is low.Surface inserting of the present invention has the cathode block aluminium cell of column-shaped projection the results showed stable work in work can reduce flow rate of aluminium liquid and fluctuation more effectively, and bath voltage is worked in lower situation.
Description of drawings
Fig. 1 is the aluminium cell top cross-sectional view of the embodiment of the invention 1.
Fig. 2 is the B-B sectional view of Fig. 1.
Fig. 3 is the aluminium cell top cross-sectional view of the embodiment of the invention 2.
Fig. 4 is the B-B sectional view of Fig. 3.
Fig. 5 is the aluminium cell top cross-sectional view of the embodiment of the invention 3.
Fig. 6 is the B-B sectional view of Fig. 5.
Fig. 7 is the aluminium cell top cross-sectional view of the embodiment of the invention 4.
Fig. 8 is the B-B sectional view of Fig. 7.
Fig. 9 is the aluminium cell top cross-sectional view of the embodiment of the invention 5.
Figure 10 is the B-B sectional view of Fig. 9
Among the figure 1, pot shell, 2, the sidepiece carbon brick, 3, the cathode block matrix, 4, column-shaped projection, 5, sidepiece charcoal element sticks with paste, 6, cathode steel bar, 7, the bottom land flame-proof thermal insulation material, 8, groove sidepiece flame-proof thermal insulation material, 9, graphite sticks with paste, 10, Carbon ramming paste between the cathode block.
Embodiment
The width of cathode block matrix is at 50～70cm in the embodiment of the invention.
Graphite in the embodiment of the invention is stuck with paste and is mixed with thermosetting resin and Graphite Powder 99, and ratio requirement can be mixed and made into mashed prod.
The preparation method of cathode block is in the embodiment of the invention:
1, the method for preparing the cathode block matrix is divided into two kinds:
1. adopt pressing method to produce the cathode block matrix, when the section of its matrix is the rectangular surfaces of rule, produce the green compact of cathode block matrix, through making the cathode block matrix of hard coal or graphite matter after 1100～1300 ℃ of roastings, perhaps carry out again making after 2300～2500 ℃ of high-temperature heat treatment first the cathode block matrix of semi-graphited through 1100～1300 ℃ of roastings, then be machined to the circular pit groove that the degree of depth is 5-10cm in the position that the cathode block body upper surface need to be inlayed stud bump, and processing internal thread at hole groove sidewall, this internal thread matches with the outside screw of cylindrical column-shaped projection;
When 2. cathode block matrix green compact are made of vibratory compaction or compression-moulding methods, the basal surface of the weight in the used vibratory compaction mould above the material changes traditional plane and becomes to have bulge-structure, or during compression molding in the mould basal surface of the pressing mold on the material change traditional plane and have bulge-structure on its surface; After the vibratory compaction of cathode block matrix or compression molding, the upper surface of vibratory compaction or compression molding cathode block matrix green compact has out just had the hole groove that is used for settling stud bump like this; Wherein the position distribution of the bulge-structure on the interior material pressing mold basal surface of the weight basal surface of material or mould wants the position of embedded with stud bumps corresponding with the cathode block body upper surface in the mould; It is consistent that the shape of bulge-structure and its upper surface that want vibratory compaction or compression molding are produced will be inlayed the shape of hole groove of stud bump; The degree of depth of hole groove is 5-10cm; When the cathode block matrix is hard coal cathode block matrix, graphite cathode carbon block matrix or semi-graphite cathode carbon block base body, above-mentioned cathode block matrix green compact 1100～1300 ℃ of roastings, are made the cathode block matrix with the hole groove; When the cathode block matrix is the cathode block matrix of greying or semi-graphited, roasting method and method and the method for making the hole groove be roast method and to make the method for cheating groove identical 1., in graphitizing furnace, under 2300～3000 ℃ of conditions, carry out pyroprocessing after the roasting, make semi-graphited or full graphitization cathode carbon block matrix; The cathode block body upper surface the hole groove be divided into circular pit groove and square hole groove; When the hole groove was circle, the inwall of hole groove was processed with internal thread, and this internal thread matches with the outside screw of cylindrical column-shaped projection; When the hole groove was square hole groove, its inwall had at least 4 diameters to be not less than 5mm, and the degree of depth is not less than the round pool of 10mm;
2, be mixed and made into graphite with thermosetting resin and Graphite Powder 99 and stick with paste, ratio requirement can be mixed and made into mashed prod; The graphite paste is inserted in the groove of hole; Then column-shaped projection is packed in the groove of hole, wherein when column-shaped projection was rectangular parallelepiped, the hole groove also was square hole groove, and the length and width size of hole groove is greater than the length and width size 1～10mm of column-shaped projection, and the rectangular parallelepiped column-shaped projection vertically is pressed in the groove of hole; When column-shaped projection when being cylindrical, the hole groove be circle, and sidewall is processed with internal thread; Outside screw on the column-shaped projection matches with the internal thread of hole in the groove, and column-shaped projection is screwed in the groove of hole, also has graphite to stick with paste between internal thread and outside screw slit and fills; After column-shaped projection enters the hole groove, with being extruded out the slit of some graphite paste between projection and hole groove, be deposited in the place that the cathode block body upper surface engages with column-shaped projection in the groove of hole.
The aluminium cell of embedded with stud bumps on upper surface of cathode block as shown in Figure 1, the B-B face cuts open figure as shown in Figure 2, this electrolyzer comprises pot shell 1, groove liner flame-proof thermal insulation material, sidepiece carbon brick 2, cathode block and cathode steel bar 6, Carbon ramming paste 10 between being filled with between the cathode block between each cathode block is made firm by ramming with sidepiece charcoal element 5 pastes between each cathode block and the sidepiece carbon brick; Wherein cathode block is made of the column-shaped projection 4 of cathode block matrix 3 and upper surface thereof, and column-shaped projection 4 is embedded in the upper surface of cathode block matrix 1.Groove liner flame-proof thermal insulation material comprises bottom land flame-proof thermal insulation material 7 and groove sidepiece flame-proof thermal insulation material 8, and sidepiece carbon brick 2 inside are provided with sidepiece charcoal element and stick with paste 5.
The length direction of column-shaped projection is vertical with the length direction of cathode block matrix, and the length of column-shaped projection is 30cm, and width is 20cm, and the difference of altitude of column-shaped projection and cathode block body upper surface is 9cm.
Column-shaped projection is arranged by two rows along cathode block body upper surface length direction, and each column-shaped projection is evenly distributed on the cathode block body upper surface, and adjacent two rows' column-shaped projection is staggered; Spacing in the same organ timbering shape projection between adjacent two column-shaped projections is 17～35cm, and the spacing of different rows' adjacent column-shaped projection is 20cm on the same cathode block, and the spacing between two simultaneously adjacent with aluminium flowing-out mouth column-shaped projections is 60cm.
Above-mentioned column-shaped projection is processed by roasting by the calcined anthracite moulding.
The working conditions of the aluminium cell of embedded with stud bumps on upper surface of cathode block when the electrolysis production metallic aluminium is: the cylindricality of cathode block all will be immersed in the aluminium liquid, it is electrolyte melt above the aluminium liquid, the height of liquid aluminum will exceed the upper surface of projection, be 1～10cm after going out aluminium, the operating voltage of electrolyzer is between 3.5～3.9V.
The aluminium cell of embedded with stud bumps on upper surface of cathode block as shown in Figure 3, the B-B face cuts open figure as shown in Figure 4, cell construction is with embodiment 1, difference is:
Column-shaped projection is arranged by three rows along cathode block body upper surface length direction, and the length of column-shaped projection is 21cm, and width is 19cm, and the difference of altitude of column-shaped projection and cathode block body upper surface is 10cm; Spacing in the same organ timbering shape projection between adjacent two column-shaped projections is 25cm, and the spacing of different rows' adjacent column-shaped projection is 5cm on the same cathode block, and the spacing between two simultaneously adjacent with aluminium flowing-out mouth column-shaped projections is 50cm.
Column-shaped projection is made by the mixture of calcined anthracite and synthetic graphite.
The working conditions of the aluminium cell of embedded with stud bumps on upper surface of cathode block when the electrolysis production metallic aluminium is: the cylindricality of cathode block all will be immersed in the aluminium liquid, it is electrolyte melt above the aluminium liquid, the height of liquid aluminum will exceed the upper surface of projection, be 1～10cm after going out aluminium, the operating voltage of electrolyzer is between 3.5～3.9V.
The aluminium cell of embedded with stud bumps on upper surface of cathode block as shown in Figure 5, the B-B face cuts open figure as shown in Figure 6, cell construction is with embodiment 1, difference is:
Column-shaped projection is right cylinder, width at the cathode block matrix is under the condition of 50～70cm, the diameter of column-shaped projection is 25cm, the difference of altitude of column-shaped projection and cathode block body upper surface is 11cm, spacing in the same organ timbering shape projection between adjacent two column-shaped projections is 30cm, the spacing of different rows' adjacent column-shaped projection is 20cm on the same cathode block, and the spacing between two simultaneously adjacent with aluminium flowing-out mouth column-shaped projections is 40cm.
Column-shaped projection is processed by roasting by the synthetic graphite forming materials.
The working conditions of the aluminium cell of embedded with stud bumps on upper surface of cathode block when the electrolysis production metallic aluminium is: the cylindricality of cathode block all will be immersed in the aluminium liquid, it is electrolyte melt above the aluminium liquid, the height of liquid aluminum will exceed the upper surface of projection, be 1～10cm after going out aluminium, the operating voltage of electrolyzer is between 3.5～3.9V.
The aluminium cell of embedded with stud bumps on upper surface of cathode block as shown in Figure 7, the B-B face cuts open figure as shown in Figure 8, cell construction is with embodiment 3, difference is:
Column-shaped projection is arranged by three rows along cathode block body upper surface length direction, the diameter of column-shaped projection is 17cm, the difference of altitude of column-shaped projection and cathode block body upper surface is 11cm, spacing in the same organ timbering shape projection between adjacent two column-shaped projections is 19cm, the spacing of different rows' adjacent column-shaped projection is 5cm on the same cathode block, and the spacing between two simultaneously adjacent with aluminium flowing-out mouth column-shaped projections is 30cm.
Column-shaped projection is processed into by artificial graphite electrode and graphite block.
The working conditions of the aluminium cell of embedded with stud bumps on upper surface of cathode block when the electrolysis production metallic aluminium is: the cylindricality of cathode block all will be immersed in the aluminium liquid, it is electrolyte melt above the aluminium liquid, the height of liquid aluminum will exceed the upper surface of projection, be 1～10cm after going out aluminium, the operating voltage of electrolyzer is between 3.5～3.9V.
The aluminium cell of embedded with stud bumps on upper surface of cathode block as shown in Figure 9, the B-B face cuts open figure as shown in figure 10, cell construction is with embodiment 1, difference is:
Width at the cathode block matrix is under the condition of 66cm, and the length of column-shaped projection is 30cm, and width is 23cm, and the difference of altitude of column-shaped projection and cathode block body upper surface is 11cm.Spacing in the same organ timbering shape projection between adjacent two column-shaped projections is 35cm, and the spacing of different rows' adjacent column-shaped projection is 10cm on the same cathode block, and the spacing between two simultaneously adjacent with aluminium flowing-out mouth column-shaped projections is 70cm.
The working conditions of the aluminium cell of embedded with stud bumps on upper surface of cathode block when the electrolysis production metallic aluminium is: the cylindricality of cathode block all will be immersed in the aluminium liquid, it is electrolyte melt above the aluminium liquid, the height of liquid aluminum will exceed the upper surface of projection, be 1～10cm after going out aluminium, the operating voltage of electrolyzer is between 3.5～3.9V.
Claims (2)
1. the aluminium cell of an embedded with stud bumps on upper surface of cathode block, comprise cathode block, it is characterized in that described cathode block is made of cathode block matrix and a plurality of column-shaped projection, being filled with graphite between column-shaped projection and the cathode block matrix sticks with paste, the cathode block matrix is rectangular parallelepiped, its upper surface is provided with groove, column-shaped projection is by the upper surface of recess-mounted at the cathode block matrix, column-shaped projection is rectangular parallelepiped or right cylinder, arrange by two rows or three rows along cathode carbon pieces upper surface length direction, adjacent two rows' column-shaped projection is staggered, the column-shaped projection of cathode block all will be immersed in when electrolysis of aluminum in the aluminium liquid, and the height of liquid aluminum exceeds the upper surface of column-shaped projection.
2. the preparation method of the described embedded with stud bumps on upper surface of cathode block aluminium cell of claim 1 is characterized in that may further comprise the steps:
(1) preparation cathode block matrix, adopt two kinds of methods:
1. extrusion process: adopt pressing method to produce the cathode block matrix, when the section of its matrix is the rectangular surfaces of rule, produce the green compact of cathode block matrix, through making the cathode block matrix of hard coal or graphite matter after 1100～1300 ℃ of roastings, perhaps carry out again making after 2300～2500 ℃ of high-temperature heat treatment first the cathode block matrix of semi-graphited through 1100～1300 ℃ of roastings, then be machined to the circular pit groove that the degree of depth is 5-10cm in the position that the cathode block body upper surface need to be inlayed stud bump, and processing internal thread at hole groove sidewall, this internal thread matches with the outside screw of cylindrical column-shaped projection;
2. vibratory compaction or compression molding: when cathode block matrix green compact are made of vibratory compaction or compression-moulding methods, the basal surface of the weight in the used vibratory compaction mould above the material changes traditional plane and becomes to have bulge-structure, or during compression molding in the mould basal surface of the pressing mold on the material change traditional plane and have bulge-structure on its surface; After the vibratory compaction of cathode block matrix or compression molding, the upper surface of vibratory compaction or compression molding cathode block matrix green compact has out just had the hole groove that is used for settling stud bump like this; Wherein the position distribution of the bulge-structure on the interior material pressing mold basal surface of the weight basal surface of material or mould wants the position of embedded with stud bumps corresponding with the cathode block body upper surface in the mould; It is consistent that the shape of bulge-structure and its upper surface that want vibratory compaction or compression molding are produced will be inlayed the shape of hole groove of stud bump; The degree of depth of hole groove is 5-10cm; When the cathode block matrix is hard coal cathode block matrix, graphite cathode carbon block matrix or semi-graphite cathode carbon block base body, above-mentioned cathode block matrix green compact 1100～1300 ℃ of roastings, are made the cathode block matrix with the hole groove; When the cathode block matrix is the cathode block matrix of greying or semi-graphited, roasting method and method and the method for making the hole groove be roast method and to make the method for cheating groove identical 1., in graphitizing furnace, under 2300～3000 ℃ of conditions, carry out pyroprocessing after the roasting, make semi-graphited or full graphitization cathode carbon block matrix; The cathode block body upper surface the hole groove be divided into circular pit groove and square hole groove; When the hole groove was circle, the inwall of hole groove was processed with internal thread, and this internal thread matches with the outside screw of cylindrical column-shaped projection; When the hole groove was square hole groove, its inwall had at least 4 diameters to be not less than 5mm, and the degree of depth is not less than the round pool of 10mm;
(2) embedded with stud bumps is mixed and made into graphite with thermosetting resin and Graphite Powder 99 and sticks with paste, and ratio requirement can be mixed and made into mashed prod; The graphite paste is inserted in the groove of hole; Then column-shaped projection is packed in the groove of hole, wherein when column-shaped projection was rectangular parallelepiped, the hole groove also was square hole groove, and the length and width size of hole groove is greater than the length and width size 1～10mm of column-shaped projection, and the rectangular parallelepiped column-shaped projection vertically is pressed in the groove of hole; When column-shaped projection when being cylindrical, the hole groove be circle, and sidewall is processed with internal thread; Outside screw on the column-shaped projection matches with the internal thread of hole in the groove, and column-shaped projection is screwed in the groove of hole, also has graphite to stick with paste between internal thread and outside screw slit and fills; After column-shaped projection enters the hole groove, with being extruded out the slit of some graphite paste between projection and hole groove, be deposited in the place that the cathode block body upper surface engages with column-shaped projection in the groove of hole.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102209808A CN101864580B (en) | 2010-07-08 | 2010-07-08 | Aluminum electrolysis bath embedded with stud bumps on upper surface of cathode block |
| CA2804944A CA2804944A1 (en) | 2010-07-08 | 2010-07-30 | Aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface |
| PCT/CN2010/075575 WO2012003649A1 (en) | 2010-07-08 | 2010-07-30 | Aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface |
| EP10854308.3A EP2592176A1 (en) | 2010-07-08 | 2010-07-30 | Aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface |
| US13/809,117 US20130112549A1 (en) | 2010-07-08 | 2010-07-30 | Aluminum electrolytic cell having cathode carbon block with columnar protrusions embedded on its upper surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102209808A CN101864580B (en) | 2010-07-08 | 2010-07-08 | Aluminum electrolysis bath embedded with stud bumps on upper surface of cathode block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101864580A CN101864580A (en) | 2010-10-20 |
| CN101864580B true CN101864580B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102209808A Expired - Fee Related CN101864580B (en) | 2010-07-08 | 2010-07-08 | Aluminum electrolysis bath embedded with stud bumps on upper surface of cathode block |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130112549A1 (en) |
| EP (1) | EP2592176A1 (en) |
| CN (1) | CN101864580B (en) |
| CA (1) | CA2804944A1 (en) |
| WO (1) | WO2012003649A1 (en) |
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| CN102010202A (en) * | 2010-12-10 | 2011-04-13 | 昆明冶金研究院 | Method for preparing cold ramming paste for electrolytic aluminum |
| CN102400177B (en) * | 2011-11-29 | 2014-03-26 | 沈阳北冶冶金科技有限公司 | Cathode carbon block structure capable of reducing horizontal current in molten cathode aluminum in aluminum electrolysis cell |
| CN102719850A (en) * | 2012-06-29 | 2012-10-10 | 东北大学 | Method for nesting cylindrical bump on upper surface of cathode carbon block and base body |
| CN102766884A (en) * | 2012-07-10 | 2012-11-07 | 沈阳北冶冶金科技有限公司 | Aluminum cell cathode carbon block with cylindrical grooves on upper surface and manufacturing method of aluminum cell cathode carbon block |
| JP6286438B2 (en) | 2012-10-16 | 2018-02-28 | アンブリ・インコーポレイテッド | Electrochemical energy storage device and housing |
| US10541451B2 (en) | 2012-10-18 | 2020-01-21 | Ambri Inc. | Electrochemical energy storage devices |
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| WO2015058010A1 (en) | 2013-10-16 | 2015-04-23 | Ambri Inc. | Seals for high temperature reactive material devices |
| US9735450B2 (en) | 2012-10-18 | 2017-08-15 | Ambri Inc. | Electrochemical energy storage devices |
| US11721841B2 (en) | 2012-10-18 | 2023-08-08 | Ambri Inc. | Electrochemical energy storage devices |
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| RU2544727C1 (en) * | 2012-11-13 | 2015-03-20 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Lining for aluminium electrolyser having inert anodes |
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| CN103243351B (en) * | 2013-05-20 | 2016-08-03 | 中南大学 | A kind of subregion electrolysis pre-calcining electrolytic cell |
| US9502737B2 (en) | 2013-05-23 | 2016-11-22 | Ambri Inc. | Voltage-enhanced energy storage devices |
| US10181800B1 (en) | 2015-03-02 | 2019-01-15 | Ambri Inc. | Power conversion systems for energy storage devices |
| WO2016141354A2 (en) | 2015-03-05 | 2016-09-09 | Ambri Inc. | Ceramic materials and seals for high temperature reactive material devices |
| US9893385B1 (en) | 2015-04-23 | 2018-02-13 | Ambri Inc. | Battery management systems for energy storage devices |
| US11929466B2 (en) | 2016-09-07 | 2024-03-12 | Ambri Inc. | Electrochemical energy storage devices |
| EP3607603A4 (en) | 2017-04-07 | 2021-01-13 | Ambri Inc. | Molten salt battery with solid metal cathode |
| CN114474413A (en) * | 2021-12-24 | 2022-05-13 | 广东兴发铝业（江西）有限公司 | Preparation method of graphite electrode for processing porous extrusion die |
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| US4919782A (en) * | 1989-02-21 | 1990-04-24 | Reynolds Metals Company | Alumina reduction cell |
| CN201473604U (en) * | 2009-06-11 | 2010-05-19 | 贵阳铝镁设计研究院 | Mosaic cathode block |
| CN201495298U (en) * | 2009-01-21 | 2010-06-02 | 贵阳铝镁设计研究院 | Aluminum cell cathode with local surface protrusion |
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| US4396482A (en) * | 1980-07-21 | 1983-08-02 | Aluminum Company Of America | Composite cathode |
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2010
- 2010-07-08 CN CN2010102209808A patent/CN101864580B/en not_active Expired - Fee Related
- 2010-07-30 WO PCT/CN2010/075575 patent/WO2012003649A1/en active Application Filing
- 2010-07-30 CA CA2804944A patent/CA2804944A1/en not_active Abandoned
- 2010-07-30 EP EP10854308.3A patent/EP2592176A1/en not_active Withdrawn
- 2010-07-30 US US13/809,117 patent/US20130112549A1/en not_active Abandoned
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| US4631121A (en) * | 1986-02-06 | 1986-12-23 | Reynolds Metals Company | Alumina reduction cell |
| US4919782A (en) * | 1989-02-21 | 1990-04-24 | Reynolds Metals Company | Alumina reduction cell |
| CN201495298U (en) * | 2009-01-21 | 2010-06-02 | 贵阳铝镁设计研究院 | Aluminum cell cathode with local surface protrusion |
| CN201473604U (en) * | 2009-06-11 | 2010-05-19 | 贵阳铝镁设计研究院 | Mosaic cathode block |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2592176A1 (en) | 2013-05-15 |
| CN101864580A (en) | 2010-10-20 |
| CA2804944A1 (en) | 2012-01-12 |
| WO2012003649A1 (en) | 2012-01-12 |
| US20130112549A1 (en) | 2013-05-09 |
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