CN102766884A - Aluminum cell cathode carbon block with cylindrical grooves on upper surface and manufacturing method of aluminum cell cathode carbon block - Google Patents
Aluminum cell cathode carbon block with cylindrical grooves on upper surface and manufacturing method of aluminum cell cathode carbon block Download PDFInfo
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- CN102766884A CN102766884A CN2012102359819A CN201210235981A CN102766884A CN 102766884 A CN102766884 A CN 102766884A CN 2012102359819 A CN2012102359819 A CN 2012102359819A CN 201210235981 A CN201210235981 A CN 201210235981A CN 102766884 A CN102766884 A CN 102766884A
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Abstract
The invention belongs to the technical field of aluminum electrolysis, and particularly relates to an aluminum cell cathode carbon block with cylindrical grooves on an upper surface and a manufacturing method of the aluminum cell cathode carbon block. According to the aluminum cell cathode carbon block with the cylindrical grooves on the upper surface, two rows of the cylindrical grooves are arranged in the length direction of the upper surface of the aluminum cell cathode carbon block, the number of each row of the cylindrical grooves is 5 to 8, the diameter of each cylindrical groove is 200 to 300 mm, the depth of each cylindrical groove is 50 to 100 mm, and the two rows of the cylindrical grooves are arranged in a mutually staggered mode. The manufacturing method of the aluminum cell cathode carbon block comprises the following steps of: placing a paste material into a vibration molded box die; pressing a heavy hammer of which the lower surface is provided with cylindrical bulges on the upper surface of the paste material in the box die; performing vibration molding; lifting up the heavy hammer and the box die; pushing a vibration molded block out to form a cathode carbon block green provided with the cylindrical grooves on the upper surface; and placing the cathode carbon block green into a roasting furnace, and roasting the green to obtain the aluminum cell cathode carbon block with the cylindrical grooves on the upper surface. By the method for manufacturing the cathode carbon block, reprocessing of the upper surface of the cathode carbon block is not required, time and labor are saved, and an electrode material is saved.
Description
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Technical field
The invention belongs to technical field of aluminum electrolysis, be specifically related to a kind of upper surface and have aluminium electrolytic cell cathode charcoal piece of cylinder groove and preparation method thereof.
Background technology
Industrial aluminium is produced with sodium aluminum fluoride-alumina molten salt electrolysis method; Aluminum electrolysis need consume a large amount of electric energy; Therefore; Economize on electricity is the technical problem underlying that aluminum electrolysis faced all the time, and concerning aluminum electrolysis, the saving of its electric energy mainly is to realize with raising current efficiency through the bath voltage that reduces electrolyzer.Before 2008, the direct current consumption of aluminum electrolysis is more than the 13200kWh/t-Al always both at home and abroad, and on March 2nd, 2007, Feng Naixiang was invented a kind of electrolysis of aluminum patented technology (ZL200710010523.4) of novel cathode structure electrolyzer; And after using on the industrial cell, making the direct current consumption of aluminum electrolysis be reduced to about 12000kWh/t-Al, Feng Naixiang has been invented a kind of patented technology of the aluminium cell of inlaying stud bump (CN101864580A) of cathode carbon pieces upper surface again afterwards; This technology has than the former more can improve the stability of electrolyzer inner cathode liquid aluminum effectively, thereby can make the current efficiency loss still less, and power consumption is lower; The characteristics that this cathode carbon pieces upper surface is inlaid with the cathode structure of aluminium cell of stud bump be each cathode carbon pieces upper surface be inlaid with along the longitudinal direction 2 row or 2 row more than convexity; The protruding interlaced arrangement of adjacent two organ timbering types, stud bump are to be processed into the groove of round tube type at the upper surface of cathode carbon pieces by prescribed position earlier at the installation method of cathode carbon pieces upper surface, and this round tube type groove inwall has screw thread; Screw thread is also arranged at the bottom of stud bump; When the protruding upper surface that relies on these screw threads to be installed in cathode carbon pieces of cartridge type, but in this way, cartridge type groove on the processing cathode carbon pieces; Both time-consuming; Effort again, also sacrificial electrode material, the matrix of particularly working as the cathode carbon pieces of being processed are to be that main material is when processing by calcined anthracite; The hardness of its cathode carbon pieces is very big, and is difficult to processing.
Summary of the invention
To above-mentioned technical problem; The invention provides a kind of upper surface and have aluminium electrolytic cell cathode charcoal piece of cylinder groove and preparation method thereof; Through in aluminium electrolytic cell cathode charcoal piece vibratory compaction process; Use a kind of lower surface to have the protruding weight of cylinder shape, make it form the aluminium electrolytic cell cathode charcoal piece that upper surface has the round tube type groove.
Upper surface of the present invention has the aluminium electrolytic cell cathode charcoal piece of cylinder groove; On the length direction of aluminium electrolytic cell cathode charcoal piece upper surface, divide two to be arranged with the round tube type groove; The groove quantity of every row's round tube type is 5 ~ 8; Diameter is 200 ~ 300mm, and the degree of depth is 50 ~ 100mm, and the interlaced arrangement of two row's round tube type grooves is arranged.
Upper surface of the present invention has the making method of the aluminium electrolytic cell cathode charcoal piece of cylinder groove to carry out according to following steps:
At first will mix the thickener of the making aluminium electrolytic cell cathode charcoal piece of pinching inserts in the vibratory compaction case mould; Then that the thickener in the case mould is smooth flat; Again lower surface is had the protruding weight of cylinder shape and be pressed in the thickener upper surface in the case mould, open vibrating forming machine, shake in advance earlier; Begin vibration afterwards, making the thickener vibratory compaction of case mould inner cathode charcoal piece is volume density 1.60g/cm at least
3The vibratory compaction piece;
Vibratory compaction is mentioned weight and case mould after accomplishing, and releases the vibratory compaction piece; Just the cathode carbon pieces green compact that upper surface has the round tube type groove have been formed this moment; The round tube type groove of cathode carbon pieces green compact upper surface divides two rows to arrange on the upper surface length direction, and the groove quantity of every row's round tube type is 5 ~ 8, and diameter is 200 ~ 300mm; The degree of depth is 50 ~ 100mm, and the interlaced arrangement of two row's round tube type grooves is arranged;
With inserting in the stoving oven after the cooling of cathode carbon pieces green compact, under 1100 ~ 1250 ℃ temperature, carry out roasting, obtain the aluminium electrolytic cell cathode charcoal piece that upper surface has cylinder groove.
Wherein, described lower surface has the protruding weight of cylinder shape to be processed by ferrous materials, and the dimensions length of its section is 3000 ~ 4000mm; Width is 500 ~ 800mm; The cylinder shape projection diameter of weight lower surface is 200 ~ 300mm, highly is 50 ~ 100mm, and these cylinder shape convexities divide two rows to arrange along the length direction of weight; The protruding quantity of every row's cylinder shape is 5 ~ 8, and the protruding interlaced arrangement of two rows' cylinder shape is arranged.
Characteristics of the present invention and beneficial effect are:
The size dimension of the round tube type groove of the length of cathode carbon pieces of the present invention and width and upper surface and position are corresponding with protruding size of the cylinder shape of the length of vibratory compaction case mould and width and weight lower surface and position; The round tube type groove that is the upper surface of cathode carbon pieces divides two rows to arrange on the length direction of cathode carbon pieces green compact upper surface; The groove quantity of every row's round tube type is 5 ~ 8; Diameter is 200 ~ 300mm; The degree of depth is 100 ~ 200mm, and the interlaced arrangement of two row's round tube type grooves is arranged.
Adopt the inventive method to make cathode carbon pieces, removed from the later stage again the cathode blocks upper surface reprocess, time saving and energy saving, save electrode materials, avoided the processing difficulties that produces because of cathode carbon pieces hardness problem.
Description of drawings
Fig. 1 and Fig. 2 are that the present invention makes the device synoptic diagram that upper surface has the cathode carbon pieces of round tube type groove;
Fig. 3 is the aluminium electrolytic cell cathode charcoal piece that the upper surface of the embodiment of the invention 3 making has cylinder groove;
Wherein: 1: lower surface has the protruding weight of cylinder shape; 2: vibratory compaction case mould; 3: the thickener of making cathode carbon pieces; 4: be shaking table.
Embodiment
Embodiment 1
At first will mix the thickener of the making aluminium electrolytic cell cathode charcoal piece of pinching inserts in the vibratory compaction case mould as depicted in figs. 1 and 2; Then that the thickener in the case mould is smooth flat; Again lower surface is had the protruding weight of cylinder shape and be pressed in the thickener upper surface in the case mould, open vibrating forming machine, shake in advance earlier; Begin vibration afterwards, the thickener vibratory compaction that makes case mould inner cathode charcoal piece is that volume density is 1.60g/cm
3The vibratory compaction piece;
Vibratory compaction is mentioned weight and case mould after accomplishing, and releases the vibratory compaction piece; Just the cathode carbon pieces green compact that upper surface has the round tube type groove have been formed this moment; The round tube type groove of cathode carbon pieces green compact upper surface divides two rows to arrange on the upper surface length direction, and the groove quantity of every row's round tube type is 5, and diameter is 200mm; The degree of depth is 50mm, the interlaced arrangement of two row's round tube type grooves;
With inserting in the stoving oven after the cooling of cathode carbon pieces green compact, under 1100 ℃ temperature, carry out roasting, obtain the aluminium electrolytic cell cathode charcoal piece that upper surface has cylinder groove, its profile is as shown in Figure 3.
Wherein, described lower surface has the protruding weight of cylinder shape to be processed by ferrous materials, and the dimensions length of its section is 3000mm; Width is 500mm; The cylinder shape projection diameter of weight lower surface is 200mm, highly is 50mm, and these cylinder shape convexities divide two rows to arrange along the length direction of weight; The protruding quantity of every row's cylinder shape is 5, the protruding interlaced arrangement of two rows' cylinder shape.
At first will mix the thickener of the making aluminium electrolytic cell cathode charcoal piece of pinching inserts in the vibratory compaction case mould as depicted in figs. 1 and 2; Then that the thickener in the case mould is smooth flat; Again lower surface is had the protruding weight of cylinder shape and be pressed in the thickener upper surface in the case mould, open vibrating forming machine, shake in advance earlier; Begin vibration afterwards, the thickener vibratory compaction that makes case mould inner cathode charcoal piece is that volume density is 1.65g/cm
3The vibratory compaction piece;
Vibratory compaction is mentioned weight and case mould after accomplishing, and releases the vibratory compaction piece; Just the cathode carbon pieces green compact that upper surface has the round tube type groove have been formed this moment; The round tube type groove of cathode carbon pieces green compact upper surface divides two rows to arrange on the upper surface length direction, and the groove quantity of every row's round tube type is 6, and diameter is 230mm; The degree of depth is 70mm, the interlaced arrangement of two row's round tube type grooves;
With inserting in the stoving oven after the cooling of cathode carbon pieces green compact, under 1200 ℃ temperature, carry out roasting, obtain the aluminium electrolytic cell cathode charcoal piece that upper surface has cylinder groove.
Wherein, described lower surface has the protruding weight of cylinder shape to be processed by ferrous materials, and the dimensions length of its section is 3500mm; Width is 650mm; The cylinder shape projection diameter of weight lower surface is 230mm, highly is 70mm, and these cylinder shape convexities divide two rows to arrange along the length direction of weight; The protruding quantity of every row's cylinder shape is 6, the protruding interlaced arrangement of two rows' cylinder shape.
Embodiment 3
At first will mix the thickener of the making aluminium electrolytic cell cathode charcoal piece of pinching inserts in the vibratory compaction case mould as depicted in figs. 1 and 2; Then that the thickener in the case mould is smooth flat; Again lower surface is had the protruding weight of cylinder shape and be pressed in the thickener upper surface in the case mould, open vibrating forming machine, shake in advance earlier; Begin vibration afterwards, the thickener vibratory compaction that makes case mould inner cathode charcoal piece is that volume density is 1.70g/cm
3The vibratory compaction piece;
Vibratory compaction is mentioned weight and case mould after accomplishing, and releases the vibratory compaction piece; Just the cathode carbon pieces green compact that upper surface has the round tube type groove have been formed this moment; The round tube type groove of cathode carbon pieces green compact upper surface divides two rows to arrange on the upper surface length direction, and the groove quantity of every row's round tube type is 8, and diameter is 300mm; The degree of depth is 100mm, the interlaced arrangement of two row's round tube type grooves;
With inserting in the stoving oven after the cooling of cathode carbon pieces green compact, under 1250 ℃ temperature, carry out roasting, obtain the aluminium electrolytic cell cathode charcoal piece that upper surface has cylinder groove.
Wherein, described lower surface has the protruding weight of cylinder shape to be processed by ferrous materials, and the dimensions length of its section is 4000mm; Width is 800mm; The cylinder shape projection diameter of weight lower surface is 300mm, highly is 100mm, and these cylinder shape convexities divide two rows to arrange along the length direction of weight; The protruding quantity of every row's cylinder shape is 8, the protruding interlaced arrangement of two rows' cylinder shape.
Claims (3)
1. a upper surface has the aluminium electrolytic cell cathode charcoal piece of cylinder groove; It is characterized in that on the length direction of aluminium electrolytic cell cathode charcoal piece upper surface, dividing two to be arranged with the round tube type groove; The groove quantity of every row's round tube type is 5 ~ 8; Diameter is 200 ~ 300mm, and the degree of depth is 50 ~ 100mm, the interlaced arrangement of two row's round tube type grooves.
2. a upper surface has the making method of the aluminium electrolytic cell cathode charcoal piece of cylinder groove, it is characterized in that carrying out according to following steps:
At first will mix the thickener of the making aluminium electrolytic cell cathode charcoal piece of pinching inserts in the vibratory compaction case mould; Then that the thickener in the case mould is smooth flat; Again lower surface is had the protruding weight of cylinder shape and be pressed in the thickener upper surface in the case mould, open vibrating forming machine, shake in advance earlier; Begin vibration afterwards, making the thickener vibratory compaction of case mould inner cathode charcoal piece is volume density 1.60g/cm at least
3The vibratory compaction piece;
Vibratory compaction is mentioned weight and case mould after accomplishing, and releases the vibratory compaction piece; Just the cathode carbon pieces green compact that upper surface has the round tube type groove have been formed this moment; The round tube type groove of cathode carbon pieces green compact upper surface divides two rows to arrange on the upper surface length direction, and the groove quantity of every row's round tube type is 5 ~ 8, and diameter is 200 ~ 300mm; The degree of depth is 50 ~ 100mm, the interlaced arrangement of two row's round tube type grooves;
With inserting in the stoving oven after the cooling of cathode carbon pieces green compact, under 1100 ~ 1250 ℃ temperature, carry out roasting, obtain the aluminium electrolytic cell cathode charcoal piece that upper surface has cylinder groove.
3. a kind of upper surface according to claim 2 has the making method of the aluminium electrolytic cell cathode charcoal piece of cylinder groove; It is characterized in that described lower surface has the protruding weight of cylinder shape and processed by ferrous materials; The dimensions length of its section is 3000 ~ 4000mm, and width is 500 ~ 800mm, and the cylinder shape projection diameter of weight lower surface is 200 ~ 300mm; Highly be 50 ~ 100mm; These cylinder shape convexities divide two rows to arrange along the length direction of weight, and the protruding quantity of every row's cylinder shape is 5 ~ 8, the protruding interlaced arrangement of two rows' cylinder shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102359819A CN102766884A (en) | 2012-07-10 | 2012-07-10 | Aluminum cell cathode carbon block with cylindrical grooves on upper surface and manufacturing method of aluminum cell cathode carbon block |
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| CN2012102359819A CN102766884A (en) | 2012-07-10 | 2012-07-10 | Aluminum cell cathode carbon block with cylindrical grooves on upper surface and manufacturing method of aluminum cell cathode carbon block |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995057A (en) * | 2012-12-05 | 2013-03-27 | 中电投宁夏青铜峡能源铝业集团有限公司 | Cathode carbon block with planar surface or V-shaped surface and staggered carbon bowls and preparation method |
| CN108716009A (en) * | 2018-06-14 | 2018-10-30 | 中南大学 | A kind of crust-breaking chips used for aluminium electrolysis and crust breaker |
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| JPS5887287A (en) * | 1981-11-18 | 1983-05-25 | Sumitomo Alum Smelt Co Ltd | Carbon cathode block for aluminum electrolytic furnace |
| CN101158048A (en) * | 2007-08-03 | 2008-04-09 | 中国铝业股份有限公司 | Graphitized wetable cathode carbon block for aluminium electrolysis bath and production method thereof |
| CN201049966Y (en) * | 2007-05-23 | 2008-04-23 | 冯乃祥 | Abnormal structure cathode carbon block of aluminum electrolysis bath |
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| CN202705504U (en) * | 2012-07-10 | 2013-01-30 | 沈阳北冶冶金科技有限公司 | Aluminum electrolysis cell cathode carbon block with cylindrical grooves on upper surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995057A (en) * | 2012-12-05 | 2013-03-27 | 中电投宁夏青铜峡能源铝业集团有限公司 | Cathode carbon block with planar surface or V-shaped surface and staggered carbon bowls and preparation method |
| CN102995057B (en) * | 2012-12-05 | 2015-09-02 | 中电投宁夏青铜峡能源铝业集团有限公司 | Surface is for plane or V-arrangement face and have cathode block and the preparation method of staggered charcoal bowl |
| CN108716009A (en) * | 2018-06-14 | 2018-10-30 | 中南大学 | A kind of crust-breaking chips used for aluminium electrolysis and crust breaker |
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Application publication date: 20121107 |