CN205893410U - Can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece - Google Patents
Can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece Download PDFInfo
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- CN205893410U CN205893410U CN201620568685.4U CN201620568685U CN205893410U CN 205893410 U CN205893410 U CN 205893410U CN 201620568685 U CN201620568685 U CN 201620568685U CN 205893410 U CN205893410 U CN 205893410U
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Abstract
The utility model belongs to the technical field of aluminium electroloysis production, the utility model discloses a frequently lead to the fact electrolysis trough voltage swing problem after the light maintenance of solution electrolysis trough, provide a can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece, including the electrolysis trough cell body, be equipped with the guide -bar unit in the electrolysis trough cell body, guide -bar unit bottom periphery is equipped with positive pole charcoal piece, the inner wall of electrolysis trough cell body is vertical to be equipped with a plurality of silicon nitride lateral masss, and guide -bar unit bottom periphery is equipped with detachable silicon nitride lateral mass backplate, and silicon nitride lateral mass backplate is parallel with electrolysis trough cell body inner wall. The utility model discloses use silicon nitride lateral part piece, make liquid electrolyte, aluminium liquid and lateral part stretch one's legs the lateral mass and form the isolation region, do not change the electric current trend, adopt to block that the piece is with electrolyte and lateral part separation, convenient, the safe online light maintenance that realizes the lateral part. Its characteristics are simple structure, and convenient operation, light maintenance process safety are stopped later stage groove condition and is worsened hidden danger.
Description
Technical field
This utility model belong to aluminum electrolysis technical field and in particular to a kind of based on barrier blocks can light maintenance formula online
Large prebaked cell for aluminum-reduction.
Background technology
Large prebaked cell for aluminum-reduction design groove age is 1800 days, and in actual production, some electrolytic bath ages are more than
3000 days.But some electrolysis baths getting up early damaged, groove age is less than 1800 days, in even below 1000 days part groove age, occurs
, sidepiece constant temperature high temperature in lift, lateral part breakage etc. on sidepiece, and the method taken in the past is to add cold wind in sidepiece heating position
Blow, or take online light maintenance or stop a series of method such as groove overhaul.
To early damage electrolysis bath, the defect of lift and sidepiece silicon nitride lateral mass punching damage especially on sidepiece, it is former that it produces
Cause: one is bassinet stand variation in rigidity, and lateral mass opens therewith, stretches one's legs with silicon nitride lateral mass binding site cracking electrolyte with slit
The bottom that gap penetrates into silicon nitride lateral mass condenses, and causes lift on silicon nitride；Two is that when calcination starts, stove side is not good
Formed, cause electrolyte, aluminium liquid that lateral mass is washed away, breaking part more than silicon nitride lateral mass fracture electrolyte condensation, formation lateral mass is lifted,
Sidepiece is rubescent or side leakage is damaged in punching.
Series in order to make up lift on lateral mass, lateral mass punching damage causes runs safety problem, and what electrolysis industry was generally taken is
Generality carries out light maintenance to electrolysis bath sidepiece online.Electrolysis bath sidepiece online light maintenance technology is it is intended to electrolysis bath to production run
Changed in running counter-lateral quadrents silicon nitride lateral mass, played extension slot age, the purpose of safety and stability production.Electrolysis bath sidepiece
The key technical problem of block online light maintenance technology is how to separate the electrolyte of melting, aluminium liquid and lateral mass, safely carries out
The replacing of lateral mass.
In Aluminum Electrolysis Production industry, in the method application process of sidepiece online light maintenance technology of electrolysis bath early damage,
The electrolysis bath sidepiece online light maintenance technology in the past taken is: by conductive for light maintenance position isolation, will be whole for this region using side processing
Seal, current trend changes, after online light maintenance, electrolysis bath is extremely susceptible to voltage swing accident.
How to solve problems, we have carried out the research of electrolysis bath sidepiece online light maintenance technology, main research
It is how the electrolyte of the electrolysis bath high temperature run melting, aluminium liquid and side satellite safing to be separated, thus realizing counter-lateral quadrents nitridation
After silicon lateral mass is changed and changed, electrolysis bath can continue to run with safely.Key problem in technology point is to realize safety, quickly to morning
Play the damaged online light maintenance of electrolysis bath sidepiece.
Content of the invention
This utility model is in order to solve frequently to cause bath voltage pendulum problem after electrolysis bath light maintenance, there is provided a kind of
Based on barrier blocks can light maintenance formula large prebaked cell for aluminum-reduction online.
This utility model adopts the following technical scheme that
A kind of based on barrier blocks can light maintenance formula large prebaked cell for aluminum-reduction online, including electrolytic cell body, electrolysis bath
It is provided with guide rod group, guide rod group bottom periphery is provided with anode carbon block, the inwall of described electrolytic cell body is vertically provided with some in cell body
Silicon nitride lateral mass, guide rod group bottom periphery is provided with dismountable silicon nitride lateral mass backplate, silicon nitride lateral mass backplate and electrolytic bath
Internal wall is parallel.
It is provided with heat-insulation layer between described silicon nitride lateral mass backplate and silicon nitride lateral mass.
Described silicon nitride lateral mass backplate is to be formed by connecting side by side by the silicon nitride lateral mass of 2-3 block 400 × 640mm.
Silicon nitride lateral mass bottom at described electrolytic cell body inwall is provided with levelling makes paste layers and pouring layer firm by ramming.
This utility model use silicon nitride side block, make liquid electrolyte, aluminium liquid and sidepiece stretch one's legs lateral mass formed isolation area,
Do not change current trend, using stopper, electrolyte is separated with sidepiece, convenient, the online light maintenance of application solutions sidepiece.It is special
Point is that structure is simple, and convenient operation, light maintenance process safety prevent later stage groove condition and deteriorate hidden danger.Have the advantages that
One be thoroughly solve the online obstruct of light maintenance process fused solution fluid and two difficult problems of voltage swing it is ensured that
Electric current during light maintenance, stable magnetic field；Ensure that the long-term safety of subsequent baths produces；Two is to extend groove life it is ensured that skill
Art index is stable, under conditions of current electrolytic aluminium price continued downturn, is that Reducing Cost in Enterprises has played important function.Its warp
Ji benefit measuring and calculating is as follows:
Saving expense aspect:
1st, according to the Life Calculation extending 1 year electrolysis bath, electrolysis bath calculated according to 2t/ day, ton aluminum 11000 yuan/t of unit price
Calculate: single cavity can bring benefits about 9,360,000 yuan/year.It is the current year that overhaul liner postpones fund input and financial expenses etc.
Expense about adds up to.
2nd, calculate according to one electrolysis bath of overhaul, overhaul cost is about: 670,000 yuan
Fee of material: 490,000 yuan,
Construction cost: 180,000 yuan
Total: 670,000 yuan
3rd, start the goods and materials of electrolysis bath needs and labour force puts into: 3.38 yuan
Stop throwing about 6 groups of anode unit cooked carbon block 910kg/ blocks of an electrolysis bath
Ten thousand yuan of 2600 yuan/t 1.820x2600=0.4732
Ten thousand yuan of 6*0.4732=2.84
Ten thousand yuan of char particle: 2t 1400 yuan/t 2*1400=0.28
Ten thousand yuan of soda: 2t 1300 yuan/t 2*1300=0.26
Test tube: 0.02t 1800 yuan/t 0.02*1800=36 unit
COMPREHENSIVE CALCULATING benefit is saved: overhaul electrolysis bath expense, payment for initiation are used, electrolysis bath extended using 1 year
Income as fund postpone put into saving.If not very to extend annual product income, that is saved as 70.38
Wan Yuan.
Brief description
Fig. 1 be change silicon nitride lateral mass before insert silicon nitride lateral mass backplate when structural representation；
Fig. 2 is the structural representation after adding insulation material；
Fig. 3 is the structural representation after the silicon nitride lateral mass of lift or punching damage on taking out；
Fig. 4 is levelling and place the structural representation after silicon nitride lateral mass using thickener；
Fig. 5 is the structural representation after taking out silicon nitride lateral mass backplate；
Fig. 6 is the structural representation of silicon nitride lateral mass backplate；
In figure: 1- insulation material, 2- anode carbon block, 3- electrolyte, 4- aluminium liquid, 5- anode carbon block, 6- guide rod group, 7- silicon nitride
Lateral mass backplate, 8- silicon nitride lateral mass, 9- make paste layers, 10- pouring layer, 11- electrolytic cell body, 12- heat-insulation layer firm by ramming.
Specific embodiment
In conjunction with accompanying drawing, specific embodiment of the present utility model is described further:
This utility model be by make barrier blocks, run anode unit be inserted perpendicularly into, by melting high-temperature electrolysis matter,
Aluminium liquid is separated with sidepiece, then adds insulation material in cut-off space, makes firm by ramming closely knit.Then the space of replacing lateral mass, offside are excavated out
Block is changed.Such operation does not change current trend, has simply intercepted lateral fraction electric current, voltage swing will not occur
Problem.
Concrete light maintenance process of the present utility model is:
1st, it is fabricated to the barrier blocks of 400 special × 640mm with silicon nitride, then be used in combination side by side with 2 or 3 pieces of silicon nitride lateral mass
The thick steel plate of 16-18mm is fixedly connected, and is fabricated to silicon nitride lateral mass backplate 7 as shown in Figure 6.
2nd, after opening the shell surface of electrolysis bath, put into silicon nitride lateral mass backplate 7, zone current will not change, and prevents
Voltage swing problem.Between the silicon nitride lateral mass in silicon nitride lateral mass backplate 7 and former electrolysis bath, add insulation material, make firm by ramming closely knit,
As shown in Figure 1, 2.
3rd, the silicon nitride lateral mass damaging upper lift or punching all takes out, until bottom silicon nitride lateral mass is completely exposed, cleaning is dry
Only, as shown in Figure 3.
4th, cleaning will enter and stretch one's legs, levelling using thickener, place silicon nitride lateral mass, as shown in Figure 4.
5th, with cold ramming paste, silicon nitride lateral mass and a gap of stretching one's legs are made firm by ramming closely knit, taking-up silicon nitride lateral mass backplate 7, complete
Line maintenance job.Electrolysis bath normally runs, the formation of secondary stove side carries out specification, as shown in Figure 5.
By electrolysis bath described in the utility model online light maintenance technology, under production status, side wall carbon block is changed or repair
Multiple, play the purpose of extension slot age, steady production, emphasis has captured two bottleneck problems: one is that voltage swing is asked during light maintenance
Topic；Two is to process the electrolysis bath furnace bottom after light maintenance to deteriorate because of side, and later stage production target deteriorates problem.
Claims (4)
1. a kind of based on barrier blocks can light maintenance formula large prebaked cell for aluminum-reduction online, including electrolytic cell body (11), be electrolysed
Be provided with guide rod group (6) in groove cell body, guide rod group (6) bottom periphery be provided with anode carbon block (5) it is characterised in that: described electrolysis bath
The inwall of cell body (11) is vertically provided with some silicon nitride lateral mass (8), and guide rod group (6) bottom periphery is provided with dismountable silicon nitride side
Block backplate (7), silicon nitride lateral mass backplate (7) is parallel with electrolytic cell body (11) inwall.
2. according to claim 1 based on barrier blocks can light maintenance formula large prebaked cell for aluminum-reduction online, its feature exists
In: it is provided with heat-insulation layer (12) between described silicon nitride lateral mass backplate (7) and silicon nitride lateral mass (8).
3. according to claim 2 based on barrier blocks can light maintenance formula large prebaked cell for aluminum-reduction online, its feature exists
In: described silicon nitride lateral mass backplate (7) is to be formed by connecting side by side by the silicon nitride lateral mass of 2-3 block 400 × 640mm.
4. according to claim 3 based on barrier blocks can light maintenance formula large prebaked cell for aluminum-reduction online, its feature exists
It is provided with: silicon nitride lateral mass (8) bottom at described electrolytic cell body (11) inwall and levelling make paste layers (9) and pouring layer firm by ramming
(10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620568685.4U CN205893410U (en) | 2016-06-14 | 2016-06-14 | Can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece |
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| CN201620568685.4U CN205893410U (en) | 2016-06-14 | 2016-06-14 | Can large -scale prebaked anode electrolysis trough of on line light maintenance formula based on separation piece |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236970A (en) * | 2017-05-31 | 2017-10-10 | 山东南山铝业股份有限公司 | The method for repairing and mending of electrolytic cell sideways furnace wall |
| CN108048874A (en) * | 2017-12-29 | 2018-05-18 | 山西晋阳碳素有限公司 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
| CN108914160A (en) * | 2018-07-25 | 2018-11-30 | 国家电投集团黄河上游水电开发有限责任公司 | Online repairing method for large pre-baked groove |
| CN109055989A (en) * | 2018-10-11 | 2018-12-21 | 万基控股集团检修安装有限公司 | A kind of repair method of electrolytic cell |
-
2016
- 2016-06-14 CN CN201620568685.4U patent/CN205893410U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236970A (en) * | 2017-05-31 | 2017-10-10 | 山东南山铝业股份有限公司 | The method for repairing and mending of electrolytic cell sideways furnace wall |
| CN107236970B (en) * | 2017-05-31 | 2019-04-26 | 山东南山铝业股份有限公司 | The method for repairing and mending of electrolytic cell sideways furnace wall |
| CN108048874A (en) * | 2017-12-29 | 2018-05-18 | 山西晋阳碳素有限公司 | Silicon nitride bonded silicon carbon block clad aluminum side wall carbon block |
| CN108914160A (en) * | 2018-07-25 | 2018-11-30 | 国家电投集团黄河上游水电开发有限责任公司 | Online repairing method for large pre-baked groove |
| CN109055989A (en) * | 2018-10-11 | 2018-12-21 | 万基控股集团检修安装有限公司 | A kind of repair method of electrolytic cell |
| CN109055989B (en) * | 2018-10-11 | 2020-03-31 | 万基控股集团检修安装有限公司 | Repairing method of electrolytic cell |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 043304 north of Longmen Road, Yuncheng, Shanxi, Hejin Patentee after: China Aluminum Shanxi new materials Co., Ltd. Address before: 043304 north of Longmen Road, Yuncheng, Shanxi, Hejin Patentee before: Shanxi Huaze Aluminum & Power Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |