CN106319573B - A kind of alumina blanking method of aluminium cell - Google Patents
A kind of alumina blanking method of aluminium cell Download PDFInfo
- Publication number
- CN106319573B CN106319573B CN201610973059.8A CN201610973059A CN106319573B CN 106319573 B CN106319573 B CN 106319573B CN 201610973059 A CN201610973059 A CN 201610973059A CN 106319573 B CN106319573 B CN 106319573B
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- CN
- China
- Prior art keywords
- metal pipe
- aluminium
- refractory metal
- electrolytic cell
- cell
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- 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.)
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- 239000004411 aluminium Substances 0.000 title claims abstract description 21
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000003870 refractory metal Substances 0.000 claims abstract description 20
- 239000003792 electrolyte Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910000601 superalloy Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005868 electrolysis reaction Methods 0.000 abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000005431 greenhouse gas Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 1
- 229920006926 PFC Polymers 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007921 spray 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
- C25C3/14—Devices for feeding or crust breaking
Abstract
A kind of alumina blanking method of aluminium cell is related to the baiting method that the aluminium oxide of aluminium process is produced in a kind of molten-salt electrolysis.It is characterized in that its aluminium oxide is directly entered in electrolytic cell by refractory metal pipe.Baiting method of the invention, aluminium oxide are directly entered in electrolytic cell after constant-volume blanking device by refractory metal pipe, are not used crust-breaking chips device, are fundamentally solved the problems, such as tup and blanking blocking.Refractory metal pipe surfaces externally and internally has one layer of anti-electrolyte binding material, can be realized by modes such as pneumatic, ultrasonic waves and accomplished continuously or intermittently be vibrated, preferentially select ultrasonic method, can be realized by installing ultrasonic wave generating system on electrolytic cell.The present invention replaces crust-breaking & baiting method existing on prebaked cell, and alumina blanking efficiency can be improved, and fundamentally solves the problems, such as blocking, reduces anode effect, reduces greenhouse gas emission, mitigates labor intensity of workers.
Description
Technical field
A kind of alumina blanking method of aluminium cell is related to the blanking that the aluminium oxide of aluminium process is produced in a kind of molten-salt electrolysis
Method.
Background technique
Existing pre-calcining electrolytic cell baiting method is to control crust-breaking chips by cell control system to hit feed opening periodically to protect
It is unimpeded to hold feed opening, aluminium oxide is entered in electrolyte by feed opening later.In recent years various power-saving technologies, which continue to bring out, makes electricity
The energy consumption of solution aluminium reduces year by year, and as energy consumption reduces, electrolytic cell heat dissipation capacity is greatly decreased, and it is long that tup often occurs in production process
Packet, feed opening are not smooth, blanking blocks, and alumina material does not enter electrolyte and is deposited in shell surface, participate in the aluminium oxide of reaction
Amount is greatly decreased, and anode effect is caused to take place frequently.The blocking that electrolytic cell is handled in production, needs electrolysis procedure work to open cell cover plate,
Hand ramming feed opening keeps feed opening unimpeded, while manually destroying tup packet.The blocking of electrolytic cell not only makes effect take place frequently, operation
It is unstable, increase heat dissipation, increase labor intensity, while reducing the gas collecting efficiency of electrolytic cell, a large amount of temperature is also generated during effect
Room gas PFCs increases environmental pollution.
A kind of aluminum cell supplying mouth Anti-blockage real-time monitoring device of patent (CN201220366223.6) and patent
(CN201120514378.5) electrolytic cell blanking failure real-time monitoring device proposes prison in real time both for electrolytic cell blocking phenomenon
The device of survey, but without solving the problems, such as electrolytic cell blocking at all.
Summary of the invention
The purpose of the present invention is to deficiencies existing for above-mentioned prior art, and providing one kind can be improved alumina blanking effect
Rate fundamentally solves the problems, such as blocking, reduces anode effect, reduces greenhouse gas emission, mitigates the aluminium electricity of labor intensity of workers
Solve the alumina blanking method of slot.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of alumina blanking method of aluminium cell, it is characterised in that its aluminium oxide is to pass through after constant-volume blanking device
Refractory metal pipe is directly entered in electrolytic cell.
A kind of alumina blanking method of aluminium cell of the invention, it is characterised in that the refractory metal Guan Qicai
Matter is heat resisting steel, nickel base superalloy.
The alumina blanking method of a kind of aluminium cell of the invention, it is characterised in that inside and outside the refractory metal pipe
There is one layer of anti-electrolyte binding material on surface, which is BN or platinum, and the connection type of material and metal tube is coating, heavy
Long-pending or coating, with a thickness of 0.1mm~5mm.
A kind of alumina blanking method of aluminium cell of the invention, it is characterised in that the refractory metal pipe top
It is connected with constant-volume blanking device, lower end surface is apart from electrolyte levels 30mm~200mm.
The alumina blanking method of a kind of aluminium cell of the invention, it is characterised in that the refractory metal pipe passes through
Pneumatic, ultrasonic wave mode, which is realized, accomplished continuously or intermittently to be vibrated.
A kind of alumina blanking method of aluminium cell of the invention, it is characterised in that the company of the refractory metal pipe
Continuous or intermittent control shaking using ultrasonic method is realized by installing ultrasonic wave generating system on electrolytic cell.
A kind of alumina blanking method of aluminium cell of the invention, it is characterised in that the ultrasonic wave generating system packet
Ultrasonic power and energy converter are included, ultrasonic power is continuous mode or pulse mode, and energy converter is fixed on heating resisting metal pipe.
A kind of alumina blanking method of aluminium cell of the invention, aluminium oxide pass through high temperature resistant gold after constant-volume blanking device
Belong to pipe to be directly entered in electrolytic cell, does not use crust-breaking chips device, fundamentally solve the problems, such as tup blocking.Refractory metal pipe
Its material can be selected heat resisting steel, nickel base superalloy or other refractory metal materials, metal tube surfaces externally and internally have one layer it is anti-electric
Solve matter binding material, the connection type of material and metal tube can be coating, deposition or coating, and the installation of refractory metal pipe can be with
It is that top is connected with constant-volume blanking device, lower part is from electrolyte levels 30mm~200mm.Refractory metal pipe can be by pneumatic, super
The modes such as sound wave, which are realized, accomplished continuously or intermittently to be vibrated, and ultrasonic method is preferentially selected, can be by installing ultrasonic wave hair on electrolytic cell
Raw system is realized.
Method of the invention is conducive to improve electrolytic cell blanking efficiency, can reduce anode effect and occur and greenhouse gases row
It puts, reduces labor intensity, the process of aluminium is produced suitable for molten-salt electrolysis.
Specific embodiment
A kind of alumina blanking method of aluminium cell, aluminium oxide are to pass through refractory metal after constant-volume blanking device
Feeder pipe is directly entered in electrolytic cell.Aluminium oxide is directly entered in electrolytic cell after constant-volume blanking device by refractory metal pipe,
Without using crust-breaking chips device, tup blocking is fundamentally solved the problems, such as.Metal tube surfaces externally and internally has one layer of anti-electrolyte bonding
Material, the installation of refractory metal pipe can be top and connect with constant-volume blanking device, and lower mouth is with a certain distance from electrolyte levels, gold
Belong to and ultrasonic generator is installed on pipe, vibrates the generation of refractory metal pipe accomplished continuously or intermittently.
It is just illustrated below in conjunction with the embodiment of 200kA and 500kA experimental electrolysis cell.
Embodiment 1
According to the superstructure and feed opening quantity of certain 200kA experimental electrolysis cell, the heating resisting metal pipe ruler of installation is determined
Very little and quantity.
200kA electrolytic cell has 4 feed openings, therefore designing 4 internal diameters is 100mm, and wall thickness is the stainless-steel pipe of 10mm,
The inner and outer wall of steel pipe lower end to the 500mm eminence applies the BN coating that a layer thickness is 1mm.By the crust-breaking chips of electrolytic cell
Stainless steel tube is mounted on above feed opening after removing, the lower end of steel pipe is with a distance from electrolyte levels at feed opening according to electrolyte
Splash degree determines that electrolyte is more stable for 30mm~100mm, and serious splash is 100mm~200mm, top and constant volume
Blanking device is welded.One ultrasonic power system is installed beside electrolytic cell slot control machine, one is welded on every steel pipe
Ultrasonic transducer and the ultrasonic power system are attached by ultrasonic transducer.
Embodiment 2
According to the superstructure and feed opening quantity of certain 500kA experimental electrolysis cell, the heating resisting metal pipe ruler of installation is determined
Very little and quantity.
500kA electrolytic cell has 6 feed openings, therefore designing 6 internal diameters is 130mm, and wall thickness is the stainless-steel pipe of 11mm,
The inner and outer wall of steel pipe lower end to the 600mm eminence sprays the BN coating that a layer thickness is 5mm.By the crust-breaking chips of electrolytic cell
Stainless steel tube is mounted on above feed opening after removing, the lower end of steel pipe is with a distance from electrolyte levels at feed opening according to electrolyte
Splash degree determines that electrolyte is more stable for 30mm~100mm, and serious splash is 100mm~200mm, top and constant volume
Blanking device is welded.One ultrasonic power system is installed beside electrolytic cell slot control machine, one is welded on every steel pipe
Ultrasonic transducer and the ultrasonic power system are attached by ultrasonic transducer.
Claims (3)
1. a kind of alumina blanking method of aluminium cell, it is characterised in that aluminium oxide is after constant-volume blanking device, through material
Heat resisting steel, nickel base superalloy refractory metal pipe be directly entered in electrolytic cell, refractory metal pipe top and constant-volume blanking
Device connection, lower end surface are realized apart from electrolyte levels 30mm~200mm, refractory metal pipe by pneumatic, ultrasonic wave mode
Accomplished continuously or intermittently vibrate.
2. a kind of alumina blanking method of aluminium cell according to claim 1, it is characterised in that the high temperature resistant
Metal tube surfaces externally and internally has one layer of anti-electrolyte binding material, which is BN or platinum, the combination side of material and metal tube
Formula is coating or deposition, with a thickness of 0.1mm~5mm.
3. a kind of alumina blanking method of aluminium cell according to claim 1, it is characterised in that the high temperature resistant
Metal tube is accomplished continuously or intermittently vibrated by installing the realization of ultrasonic wave generating system on electrolytic cell, and ultrasonic wave generating system includes super
Sound wave power supply and energy converter, ultrasonic power are continuous mode or pulse mode, and energy converter is fixed on heating resisting metal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973059.8A CN106319573B (en) | 2016-11-07 | 2016-11-07 | A kind of alumina blanking method of aluminium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973059.8A CN106319573B (en) | 2016-11-07 | 2016-11-07 | A kind of alumina blanking method of aluminium cell |
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| Publication Number | Publication Date |
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| CN106319573A CN106319573A (en) | 2017-01-11 |
| CN106319573B true CN106319573B (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610973059.8A Active CN106319573B (en) | 2016-11-07 | 2016-11-07 | A kind of alumina blanking method of aluminium cell |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497793B (en) * | 2017-09-30 | 2024-03-12 | 中冶赛迪技术研究中心有限公司 | Ultrasonic vibration cleaning device and method for aluminum groove crust-breaking hammer |
| CN108893758B (en) * | 2018-06-27 | 2020-06-16 | 中南大学 | Alumina blanking method for prebaked aluminum electrolytic cell |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151061A (en) * | 1977-11-15 | 1979-04-24 | Nippon Light Metal Company Limited | Aluminum electrolytic cell |
| EP0017612A1 (en) * | 1979-03-02 | 1980-10-15 | Schweizerische Aluminium AG | Apparatus for continuously feeding alumina by means of a metering apparatus |
| EP0112279A2 (en) * | 1982-11-17 | 1984-06-27 | Schweizerische Aluminium Ag | Method and device for the batch metering of fluent granular material |
| CN102560556A (en) * | 2012-01-11 | 2012-07-11 | 高伟 | Aluminum oxide embedded type feeding device |
| CN102851695A (en) * | 2011-06-30 | 2013-01-02 | 苏州天华有色金属制品有限公司 | Electrolytic cell assembly |
| CN103114305A (en) * | 2013-02-04 | 2013-05-22 | 湖南创元铝业有限公司 | Continuous feeding device for aluminum electrolysis cell and electrolysis cell with same |
| CN203546158U (en) * | 2013-11-03 | 2014-04-16 | 张鹏 | Automatic blanking system of electrolytic molten salt furnace |
| CN203668529U (en) * | 2013-11-28 | 2014-06-25 | 云南云铝润鑫铝业有限公司 | Exhaust and blanking dual-purpose pipe for electrolytic tank |
| CN205258632U (en) * | 2015-12-30 | 2016-05-25 | 贵阳铝镁设计研究院有限公司 | Device of continuous unloading of aluminium oxide |
| CN205270111U (en) * | 2015-12-31 | 2016-06-01 | 成都贝丝特新材料有限公司 | Copper powder shale shaker |
-
2016
- 2016-11-07 CN CN201610973059.8A patent/CN106319573B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151061A (en) * | 1977-11-15 | 1979-04-24 | Nippon Light Metal Company Limited | Aluminum electrolytic cell |
| EP0017612A1 (en) * | 1979-03-02 | 1980-10-15 | Schweizerische Aluminium AG | Apparatus for continuously feeding alumina by means of a metering apparatus |
| EP0112279A2 (en) * | 1982-11-17 | 1984-06-27 | Schweizerische Aluminium Ag | Method and device for the batch metering of fluent granular material |
| CN102851695A (en) * | 2011-06-30 | 2013-01-02 | 苏州天华有色金属制品有限公司 | Electrolytic cell assembly |
| CN102560556A (en) * | 2012-01-11 | 2012-07-11 | 高伟 | Aluminum oxide embedded type feeding device |
| CN103114305A (en) * | 2013-02-04 | 2013-05-22 | 湖南创元铝业有限公司 | Continuous feeding device for aluminum electrolysis cell and electrolysis cell with same |
| CN203546158U (en) * | 2013-11-03 | 2014-04-16 | 张鹏 | Automatic blanking system of electrolytic molten salt furnace |
| CN203668529U (en) * | 2013-11-28 | 2014-06-25 | 云南云铝润鑫铝业有限公司 | Exhaust and blanking dual-purpose pipe for electrolytic tank |
| CN205258632U (en) * | 2015-12-30 | 2016-05-25 | 贵阳铝镁设计研究院有限公司 | Device of continuous unloading of aluminium oxide |
| CN205270111U (en) * | 2015-12-31 | 2016-06-01 | 成都贝丝特新材料有限公司 | Copper powder shale shaker |
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| Publication number | Publication date |
|---|---|
| CN106319573A (en) | 2017-01-11 |
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