CN107475750A - A kind of aluminium cell production process anode carbon block configuration mode - Google Patents
A kind of aluminium cell production process anode carbon block configuration mode Download PDFInfo
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- CN107475750A CN107475750A CN201610403190.0A CN201610403190A CN107475750A CN 107475750 A CN107475750 A CN 107475750A CN 201610403190 A CN201610403190 A CN 201610403190A CN 107475750 A CN107475750 A CN 107475750A
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- carbon block
- aluminium cell
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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
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The anode carbon block that a kind of aluminium cell production process anode carbon block configuration mode of the present invention is mainly used between the startup roasting of pre-calcining electrolytic cell and normal production period changes a grade operation.Its technical characteristic is：In aluminium cell production process, configured using two kinds of different anode carbon blocks of height, low carbon block is used for the roasting and starting of aluminium cell, and high carbon block is applied to the normal production of aluminium cell.Configured using relatively low anode carbon block in startup firing stage, can meet the needs of aluminium cell device structure load, reduce investment in technological transformation, and can reduces the resistance energy consumption of anode carbon block during baking, reduces roasting and starting cost.Using the anode carbon block of 750mm level above, configured in the normal production phase, you can with the reduction pole changing cost of aluminium cell, the stability and current efficiency of aluminium cell can be improved again, realize the purpose of the energy-saving and emission-reduction production of electrolytic aluminium.
Description
Technical field：A kind of aluminium cell production process anode carbon block configuration mode is mainly used in prebake
Anode carbon block between the startup roasting of aluminium cell and normal production period changes a grade operation.
Technical background：In the production process of aluminium cell, there is pre-baked anode carbon blocks participation chemistry to put
Reaction and conductive two kinds of functions are changed, during electrolysis production, the height of anode carbon block is hot with participating in
The time of electrochemical reaction gradually reduces.One distinguishing feature of pre-calcining electrolytic cell production is, in aluminium electricity
Solve in groove production process, certain thickness will be depleted to, electrolyte solution may jeopardize the residual of anode steel claw safety
Pole carbon block is taken out out of electrolytic cell, replace with the new anode carbon block steel pawl group of a height as before continue into
The continuous production of row electrolytic aluminium.
Aluminium cell is divided into two stages in process of production, and one is to start firing stage, and one is just
The normal production phase.
The stage in the normal production process of aluminium cell, due to all anode carbon blocks in aluminium cell
Weighted average height, really newly change anode carbon block height add anode scrap height 1/2.That is aluminium electricity
The average weight of the anode carbon block in groove is solved, the weight for really newly changing anode adds the 1/2 of anode scrap weight.
Aluminium electrolysis anode electric installation and the conduction of aluminum electrolysis cell upper part structure bearing capacity and anode conducting device
Between load, and the anode carbon block height (weight) of aluminium cell actual disposition, there is larger difference
Space (design margin).Therefore, aluminium cell is in the stage in the normal production process of aluminium cell,
It should try one's best and be configured using higher anode carbon block, should be the higher the better under conditions of security clearance, to subtract
Grade operation is changed less to negatively affect to aluminium cell thermal shock and caused by changing grade cost increase.
And the startup firing stage after the completion of being built by laying bricks or stones in aluminium electrolytic cell cathode burner hearth, the moon of aluminium cell
Pole liner in a short time, need to carry out baking heat, in order to ensure cathode inner lining with substantial amounts of resistance heat energy
The heated harmony of roasting, cathode inner lining surface current density and corresponding anode carbon block current density are necessary
Equal, the configuration height of aluminium electrolysis cell anode carbon block must be contour.During this period, needed for aluminium cell
The bearing load of thermal power load and upper mechanism is maximum；The anode carbon block configured in aluminium cell
Average height (weight) is the actual height and weight of anode carbon block, with aluminum cell structure Design cooling load
It is substantially suitable to carry allowable force, in order to reduce the structural resistance power consumption of anode carbon block, improves load carrying peace
Quan Xing, on the premise of starting aluminium cell roasting quality is ensured, during roasting and starting, aluminium cell
It should try one's best and area's startup is carried out using highly relatively low anode carbon block configuration.
It is well known that anode carbon block more than the 750mm height of aluminium cell configuration now, realizes electrolysis
The energy-saving and emission-reduction of aluminium, it is a kind of main trend, because aluminium cell utilizes more than anode carbon block configuration, in aluminium
It is low with grade frequency is changed in electrolytic cell production process, service life length, to aluminium cell thermal balance and surely
The advantages that qualitative impulsive disturbance is small.
But existing general aluminium electroloysis enterprise both at home and abroad, all it is the anode using 600mm or so height
Carbon block is configured, and average height and weight are all relatively low (with respect to anode carbon block more than 750mm height
For).Startup roasting and two stages normally produced during Aluminum Electrolysis Production, are all adopted always
Carried out with the anode carbon block configuration of 600mm height left and right.
But use anode carbon block more than 750mm height in aluminum electrolysis enterprise, aluminium cell
Configured, it is possible to achieve normal production and energy-saving and emission-reduction.And roasting and starting can be such as carried out to aluminium cell,
Often it is at one's wits' end, then problems with is present；
(1) in the roasting and starting aluminum electrolytic cell stage, because all anode carbon blocks in aluminium cell all must
It must be contour, the roasting and starting of aluminium cell is carried out using more than 750mm high anode carbon block, can be by
After the overall increase of anode carbon block height, the resistance value and voltage drop value of aluminium cell certainly will can increase, and increase
Add aluminium cell in roasting and starting stage anode resistance energy consumption, cause electrobath start power consumption cost increase.
(2) in the case where aluminium electrolysis cell anode carbon block conductive area is constant, using 750mm height
Anode carbon block carries out roasting and starting aluminium cell, after anode carbon block increases, its aluminium electrolysis cell anode carbon block
Gross weight is beyond aluminum electrolysis cell upper part structure and the load capacity load of anode large bus bar and lift structure
License ability, security risk increase.
(3) in the roasting and starting aluminum electrolytic cell stage, aluminium electroloysis is carried out using 750mm superelevation anode carbon block
Roasting and starting pole changing of aluminum electrolytic cell operating space it is limited, technology barrier is more.
(4) to solve above-mentioned 2 problems, it is existing aluminium electrolysis enterprise more adopt top bearing structure ability
Strengthen and the lifting of anode conducting performance, progress equipment technology reconstruction method are solved, investment waste is larger.
The content of the invention：In order to solve general aluminum cell structure using anode more than 750mm height
Carbon block carries out that, with postponing, license scarce capacity can be carried there is aluminum cell structure during roasting is started
With the expense cost for starting the problem of energy consumption is too high and reduction aluminium cell scrap build, the present invention is by setting
Meter calculates, and is proposed a new aluminium cell production process anode carbon block allocation plan, the technical scheme
It is characterized in：
In aluminium cell production process, configured using two kinds of different anode carbon blocks of height, low charcoal
Block is used for the roasting and starting of aluminium cell, and high carbon block is applied to the normal production of aluminium cell, that is, started
Firing stage is configured using the anode carbon block of below 650mm height, and rank is normally produced in electrolytic aluminium
During section, then configured using the superelevation anode carbon block of 700mm level above.
According to above-mentioned technical proposal：Aluminium cell is starting firing stage, using relatively low anode carbon
Block is configured, and can meet the needs of aluminium electrolytic equipment structural load, reduces investment in technological transformation, again
The resistance energy consumption of anode carbon block during baking can be reduced, reduces the roasting and starting cost of aluminium cell.
According to above-mentioned technical proposal：Aluminium cell is in the normal production phase, using 700mm level above
Superelevation anode carbon block configured, you can with the reduction pole changing cost of aluminium cell, can carry again
The stability and current efficiency of high aluminium cell.
According to above-mentioned technical proposal：Aluminium cell is calcined in startup and completed into after normally producing the period,
Height can be used to be more than the anode carbon block for starting period height, replacement replacing is carried out in pole changing, it is real
Current high anode is normally produced.
Advantages of the present invention：Using the invention described above technical scheme, 650mm is used starting firing stage
The anode carbon block of following height is configured, during the electrolytic aluminium normal production phase, then using 700mm
The superelevation anode carbon block of level above is configured.It can so meet that existing Universal aluminium electrolytic arrangement can match somebody with somebody
The demand of 700mm level above anode carbon blocks is put, investment in technological transformation is reduced, anode can be reduced again
The resistance energy consumption of carbon block during baking, roasting and starting aluminum electrolytic cell cost is reduced, change poles can also be reduced
Operating cost, the stability and current efficiency of aluminium cell are improved, realize the energy-saving and emission-reduction production of electrolytic aluminium
Purpose.
Embodiment：In aluminium cell production process, two kinds of different anode carbons of height are used
Block is configured.Low carbon block is used for the roasting and starting of aluminium cell, and high carbon block is being applied to aluminium cell just
Often production.Such as：Starting firing stage, aluminium cell is carried out using the anode carbon block of 600mm height
Configuration.During the electrolytic aluminium normal production phase, aluminium cell uses the anode using 700mm height
Carbon block is configured.Aluminium cell is starting roasting completion, into after the normal production period, Ke Yiyong
The anode carbon block of 700mm height, in pole changing, the anode carbon block of 600mm height is replaced
In generation, is changed, and realization is normally produced with high anode.
Claims (1)
1. a kind of aluminium cell production process anode carbon block configuration mode, it is characterized in that：In aluminium cell
In production process, configured using two kinds of different anode carbon blocks of height, low carbon block is used for aluminium cell
Roasting and starting, high carbon block be applied to aluminium cell normal production, i.e., adopted during firing stage is started
Configured with the anode carbon block of below 650mm height, during the electrolytic aluminium normal production phase, then
Configuration production is carried out using the anode carbon block of 700mm level above.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610403190.0A CN107475750A (en) | 2016-06-08 | 2016-06-08 | A kind of aluminium cell production process anode carbon block configuration mode |
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| CN201610403190.0A CN107475750A (en) | 2016-06-08 | 2016-06-08 | A kind of aluminium cell production process anode carbon block configuration mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115747885A (en) * | 2022-09-30 | 2023-03-07 | 广元中孚高精铝材有限公司 | Secondary starting method after batch shutdown of electrolytic cells |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878412A (en) * | 2015-06-05 | 2015-09-02 | 青海百河铝业有限责任公司 | Novel energy-saving heightening anode group for aluminium electrolytic bath |
| CN204661836U (en) * | 2014-11-23 | 2015-09-23 | 高德金 | A kind of 600KA aluminium electrolysis cell anode carbon block configuration structure |
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2016
- 2016-06-08 CN CN201610403190.0A patent/CN107475750A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204661836U (en) * | 2014-11-23 | 2015-09-23 | 高德金 | A kind of 600KA aluminium electrolysis cell anode carbon block configuration structure |
| CN104878412A (en) * | 2015-06-05 | 2015-09-02 | 青海百河铝业有限责任公司 | Novel energy-saving heightening anode group for aluminium electrolytic bath |
Non-Patent Citations (1)
| Title |
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| 邱竹贤: "《预焙槽炼铝》", 30 June 1980, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115747885A (en) * | 2022-09-30 | 2023-03-07 | 广元中孚高精铝材有限公司 | Secondary starting method after batch shutdown of electrolytic cells |
| CN115747885B (en) * | 2022-09-30 | 2023-09-01 | 广元中孚高精铝材有限公司 | Secondary starting method after batch stopping of electrolytic cells |
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Application publication date: 20171215 |