CN108048874A - Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block - Google Patents
Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block Download PDFInfo
- Publication number
- CN108048874A CN108048874A CN201711471073.9A CN201711471073A CN108048874A CN 108048874 A CN108048874 A CN 108048874A CN 201711471073 A CN201711471073 A CN 201711471073A CN 108048874 A CN108048874 A CN 108048874A
- Authority
- CN
- China
- Prior art keywords
- carbon block
- silicon nitride
- side wall
- wall carbon
- silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 45
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical group N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 36
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 28
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910003978 SiClx Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
A kind of silicon nitride bonded silicon carbon block clad aluminum side wall carbon block, including side wall carbon block body, the side wall carbon block body one side, which makes, rectangle step, and the rectangle step one side is trapezoidal backrest, and cuboid silicon nitride is provided on rectangle step.It is used as electrolytic bath side part inner lining material that can meet production and application condition using carbon block and silicon nitride bonded silicon are compound, and can be the construction saving cost of electrolytic cell.Silicon nitride structure body is contacted with electrolytic cell side pot shell, and heat conductivility is good, and beneficial to electrolytic cell heat dissipation, to realize thermal balance that electrolytic cell normally produces, the lower part of clad aluminum side wall carbon block contacts with the side lower part of electrolytic cell, kept the temperature beneficial to bottom of electrolytic tank.
Description
Technical field
The present invention relates to a kind of non-ferrous metal aluminum electrolyzing cell used side carbon block structures, are specially a kind of silicon nitride bonded silicon carbon block
Clad aluminum side wall carbon block.
Background technology
Very big breakthrough occurs in terms of technological innovation for China's Aluminium Industry since reform and opening-up, from 20KA, 60KA self-baking
Anode slot to the eighties Introduced From Abroad 160KA pre-baked anode cell technologies, develop to current strength up to 240KA, 320KA,
The large scale electrolytic cell of 400KA, 500KA, nearly 2 years ultra-large type electrolyzer electrics intensity of flow break through 600KA, 660KA, independent intellectual production
The ultra-large type pre-baking tank production technology of power has reached advanced international standard instantly with technical equipment.
Side wall carbon block is mainly used for electrolytic bath side part inner lining material, operating temperature close to 1000 DEG C of high temperature place,
As prebaked cell constantly maximizes development, the heat that the increase of current strength obtains electrolytic cell molten bath also significantly increases
Add, therefore, counter-lateral quadrents heat dissipation has higher requirement, and cell lining wall must select the better material that radiates, to realize electricity
The thermal balance that solution slot normally produces.Current strength mostly makees side in 240KA grades or more of electrolytic cell using silicon nitride combined silicon carbide
Portion's inner lining material, but due to silicon nitride combined silicon carbide material price costly, and cost is reduced, improve the use of electrolytic cell
The requirements such as service life, energy-saving and emission-reducing are the key that the continuous technological innovations of electrolytic aluminium.
The content of the invention
A kind of silicon nitride bonded silicon carbon block clad aluminum side wall carbon block of offer of the present invention solves current electrolysis aluminum liner material
Using carborundum and the high deficiency of silicon nitride cost of manufacture.
The silicon nitride bonded silicon carbon block clad aluminum side wall carbon block of the present invention, it is characterized in that including side wall carbon block body, it is described
Side wall carbon block body one side, which makes, rectangle step, and the rectangle step one side is trapezoidal backrest, on rectangle step
It is provided with cuboid silicon nitride.
The silicon nitride bonded silicon carbon block clad aluminum side wall carbon block, it is characterized in that the side wall carbon block body outer surface
There is cathode paste to make face groove firm by ramming.
The silicon nitride bonded silicon carbon block clad aluminum side wall carbon block, it is characterized in that the trapezoidal backrest surface and silicon nitride
There is adhesive layer between faying face.
It is used as electrolytic bath side part inner lining material that can meet production and application condition using carbon block and silicon nitride bonded silicon are compound,
Can be the construction saving cost of electrolytic cell again.Silicon nitride structure body is contacted with electrolytic cell side pot shell, and heat conductivility is good,
Beneficial to electrolytic cell heat dissipation, to realize thermal balance that electrolytic cell normally produces, the lower part of clad aluminum side wall carbon block is the same as being electrolysed
The side lower part contact of slot, keeps the temperature beneficial to bottom of electrolytic tank.
Description of the drawings
Fig. 1 is silicon nitride bonded silicon carbon block clad aluminum side wall carbon block schematic diagram；
Fig. 2 is the A direction views of Fig. 1；
Fig. 3 is silicon nitride and the compound schematic diagram of aluminium side wall carbon block；
Fig. 4 is silicon nitride bonded silicon carbon block clad aluminum side wall carbon block application schematic diagram in prebaked cell.
In figure：1- cathode pastes make face groove firm by ramming；2- rectangle steps；3- side wall carbon block bodies；The trapezoidal backrests of 4-；5- nitrogen
SiClx；6- bottom cathode carbon blocks；7- anode carbon blocks；8- stoves side stretches one's legs；9- electrolytic bath shell-sides；10- cathode steel bars；11- electricity
Solve slot pot shell bottom.
Specific embodiment
With reference to Fig. 1-3, this practicality silicon nitride bonded silicon carbon block clad aluminum side wall carbon block first processes shaping carbon block at a right angle
Then trapezoidal pattern formula reprocesses a rectangle step 2, substrate as shown in Figs. 1-2 is formed, including side wall carbon block body
3, there is cathode paste to make face groove 1 firm by ramming in side wall carbon block bodies side surface, the one side of rectangle step 2 is trapezoidal backrest 4, rectangular
With coating adhesive layer on trapezoidal backrest vertical surface on shape step surface, the bonding of silicon nitride 5 of nitrogen rectangular shape is compounded in rectangular
On shape step.Constitute the silicon nitride bonded silicon carbon block clad aluminum side wall carbon block of the present invention.
Shown in Fig. 4, silicon nitride is cuboid, is contacted with electrolytic cell side pot shell 9, heat conductivility is good, beneficial to electrolysis
Slot heat dissipation, to realize thermal balance that electrolytic cell normally produces, the lower part of silicon nitride bonded silicon carbon block clad aluminum side wall carbon block
Side lower part with electrolytic cell contacts, and is kept the temperature beneficial to bottom of electrolytic tank.Stove is set to help to stretch one's legs 8 on the inclined-plane of trapezoidal backrest 4, side charcoal
It is contacted below block body 3 with bottom cathode carbon block 6, anode carbon block 7 is placed on cathode carbon pieces.On bottom of electrolytic tank pot shell 11
Portion is cathode copper rod 10.
This practicality silicon nitride bonded silicon carbon block clad aluminum side wall carbon block, in a cell carbon block body contacts electrolyte, nitrogen
SiClx so not only ensures good heat radiating function, but also has saved electrolytic cell and built cost by laying bricks or stones close to pot shell.
The silicon nitride bonded silicon carbon block clad aluminum of the present invention is fast with side charcoal, is that aluminium cell uses carbon block and silicon nitride bonded silicon
Composite block do inner lining material, the lateral lining of initial prebaked cell using common carbon block, later large pre-baked cell
Lateral lining makees lateral lining using semi-graphite, graphite carbon block.Due to the corrosion resistance and heat conductivility of graphite carbon block
Better than common carbon material, it can ensure the heat dissipation requirement of prebaked cell substantially, firm and regular slot can be formed
Hall.But as the heat that continuous expansion, the increase of current strength of cell capacity obtain electrolytic cell molten bath also significantly increases
Add, and pot shell heat dissipation area is there is no directly proportional increase, therefore, counter-lateral quadrents heat dissipation has higher requirement, cell lining side
Wall must select the better material that radiates, and current strength uses silicon nitride combined silicon carbide more in 240KA grades or more of electrolytic cell
Make lateral lining material, but due to silicon nitride combined silicon carbide material price costly, cause electrolytic aluminium factory furnace lining material into
This is higher.Aluminium of the present invention is to be combined using carbon block with silicon nitride bonded silicon soon with side charcoal, and carbon block is processed a rectangle
Step, it is then compound with silicon nitride bonding, it not only ensure that its side heat conductivility in a cell, but also easily formed firm slot
Side crust, makes burner hearth stable and regular, and the cost of Pot Lining is saved for electrolytic aluminium factory.
Claims (3)
1. a kind of silicon nitride bonded silicon carbon block clad aluminum side wall carbon block, it is characterized in that including side wall carbon block body（3）, the side
Charcoal block body one side, which makes, rectangle step（2）, the rectangle step one side is trapezoidal backrest（4）, in rectangle step
On be provided with cuboid silicon nitride（5）.
2. silicon nitride bonded silicon carbon block clad aluminum side wall carbon block according to claim 1, it is characterized in that the side charcoal
Block body outer surface has cathode paste to make face groove firm by ramming（1）.
3. silicon nitride bonded silicon carbon block clad aluminum side wall carbon block according to claim 1 or 2, it is characterized in that described is trapezoidal
There is adhesive layer between backrest surface and silicon nitride bonded silicon face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471073.9A CN108048874A (en) | 2017-12-29 | 2017-12-29 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471073.9A CN108048874A (en) | 2017-12-29 | 2017-12-29 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108048874A true CN108048874A (en) | 2018-05-18 |
Family
ID=62129316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711471073.9A Pending CN108048874A (en) | 2017-12-29 | 2017-12-29 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108048874A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392390A (en) * | 2007-09-19 | 2009-03-25 | 中国铝业股份有限公司 | Special-shaped carbon block at side of electrobath |
| CN201751430U (en) * | 2010-06-02 | 2011-02-23 | 河南省登封铝业有限公司 | Novel special-shaped carbon block used for side part of aluminum electrolytic tank |
| CN202064010U (en) * | 2011-05-09 | 2011-12-07 | 黄勇 | Special carbon block at side part of electrolytic bath |
| CN202139302U (en) * | 2011-07-22 | 2012-02-08 | 河北联冠电极股份有限公司 | Abnormal-shaped side-portion carbon block for aluminum electrolysis cell |
| CN103122463A (en) * | 2011-11-21 | 2013-05-29 | 沈阳铝镁设计研究院有限公司 | Heat-insulated type cell lining side composite block for aluminium electrolysis cell |
| CN104854264A (en) * | 2012-12-13 | 2015-08-19 | 西格里碳素欧洲公司 | Side-wall block for a wall in an electrolytic cell for reducing aluminum |
| CN205893410U (en) * | 2016-06-14 | 2017-01-18 | 山西华泽铝电有限公司 | Can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece |
| CN207828425U (en) * | 2017-12-29 | 2018-09-07 | 山西晋阳碳素有限公司 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
-
2017
- 2017-12-29 CN CN201711471073.9A patent/CN108048874A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392390A (en) * | 2007-09-19 | 2009-03-25 | 中国铝业股份有限公司 | Special-shaped carbon block at side of electrobath |
| CN201751430U (en) * | 2010-06-02 | 2011-02-23 | 河南省登封铝业有限公司 | Novel special-shaped carbon block used for side part of aluminum electrolytic tank |
| CN202064010U (en) * | 2011-05-09 | 2011-12-07 | 黄勇 | Special carbon block at side part of electrolytic bath |
| CN202139302U (en) * | 2011-07-22 | 2012-02-08 | 河北联冠电极股份有限公司 | Abnormal-shaped side-portion carbon block for aluminum electrolysis cell |
| CN103122463A (en) * | 2011-11-21 | 2013-05-29 | 沈阳铝镁设计研究院有限公司 | Heat-insulated type cell lining side composite block for aluminium electrolysis cell |
| CN104854264A (en) * | 2012-12-13 | 2015-08-19 | 西格里碳素欧洲公司 | Side-wall block for a wall in an electrolytic cell for reducing aluminum |
| CN205893410U (en) * | 2016-06-14 | 2017-01-18 | 山西华泽铝电有限公司 | Can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece |
| CN207828425U (en) * | 2017-12-29 | 2018-09-07 | 山西晋阳碳素有限公司 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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