CN110751379A - Method for judging technical indexes of aluminum electrolysis cell - Google Patents
Method for judging technical indexes of aluminum electrolysis cell Download PDFInfo
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- CN110751379A CN110751379A CN201910931911.9A CN201910931911A CN110751379A CN 110751379 A CN110751379 A CN 110751379A CN 201910931911 A CN201910931911 A CN 201910931911A CN 110751379 A CN110751379 A CN 110751379A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 150000004673 fluoride salts Chemical group 0.000 claims description 3
- 238000004886 process control Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 abstract description 6
- 238000013480 data collection Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/04—Manufacturing
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention belongs to the technical field of aluminum electrolysis production, and particularly relates to a method for judging technical indexes of an aluminum electrolysis cell. The invention mainly solves the problem of incomplete technical management of the electrolytic cell. The method for evaluating the technical indexes of the aluminum electrolytic cell comprises the following steps: collecting electrolytic bath operation data, sorting, analyzing and classifying the data, establishing a database, establishing a technological standard, judging and analyzing, and adjusting and feeding back an analysis result.
Description
Technical Field
The invention belongs to the technical field of aluminum electrolysis production, and particularly relates to a method for judging technical indexes of an aluminum electrolysis cell.
Background
With the continuous development of aluminum electrolysis production technology, aluminum electrolysis cells are becoming large-sized and ultra-large, the technological content and the intelligence degree of the aluminum electrolysis cells are becoming higher and higher, and especially in recent years, large electrolysis cells of 500KA and 600KA and above are put into production in batches. The requirement of the large-scale electrolytic cell on stable production operation is relatively strict, the required refined operation degree is higher, and the quality of the technical management of the electrolytic cell is directly related to the stable operation of the electrolytic cell. Most of the current electrolytic aluminum enterprises still stay in a rough production management mode, and only cause determination measures are found according to the current situation, the main reason is that data collection is incomplete, accurate judgment on long-term stable operation of the electrolytic cell cannot be made, so that the operation of the electrolytic cell is unstable, even basic rules of electrolytic production are violated, the later-stage management and control difficulty of the electrolytic cell is increased, and the operation life of the electrolytic cell is seriously influenced. Therefore, with the increasing popularization of data management, the technical management of the electrolytic cell process needs to be further standardized and perfected, and the stable operation of the electrolytic cell production is ensured by carrying out standardized control on technical indexes, operation standards and the like.
Disclosure of Invention
The invention provides a method for judging technical indexes of an aluminum electrolysis cell aiming at the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for evaluating technical indexes of an aluminum electrolysis cell comprises the following steps: collecting electrolytic bath operation data, sorting, analyzing and classifying the data, establishing a database, establishing a technological standard, judging and analyzing, and adjusting and feeding back an analysis result.
The electrolyzer operating data comprises: current intensity, target polar distance, pressure difference between grades, 1cm mass voltage drop, fluoride salt unit consumption, quasi-theoretical alumina unit consumption, constant volume blanking amount, molecular ratio range, primary crystal temperature, electrolyte temperature range, furnace bottom voltage drop, steel bar welding voltage drop, anode voltage drop, bus voltage drop, decomposition voltage, electrolyte voltage drop, set voltage, current efficiency range, aluminum yield range, AlF3Addition amount, NB set, aluminum level, electrolyte level, alumina amount.
The established technical standard is as follows:
dividing the electrolytic cell into A, B, C, D, E five state grades by measuring the technical data of the operation process of the electrolytic cell;
the technical standard of the process is as follows:
the evaluation analysis method comprises the following steps: day judgment, week judgment and month judgment;
the daily judgment is to judge the operation condition, curve operation condition, parameter matching condition, aluminum production precision and the influence of three operations on the electrolytic cell and abnormal processing condition of each electrolytic cell; the week judgment mainly judges the type of the tank condition, the aluminum production efficiency, the revision of the process standard and the correction of the actual process control; the monthly evaluation mainly comprises the steps of evaluating the running trend of the electrolytic cell and exploring a process route.
The three operations are pole changing, aluminum discharging and bus lifting.
The adjustment and feedback are: when an abnormal condition occurs, an adjustment order is issued to a corresponding workshop.
Compared with the prior art, the invention has the following advantages:
by standardizing the technical management of the electrolytic cell process, the technical indexes and the operation standards are effectively and normatively controlled, and the stable operation of the electrolytic cell production is ensured.
Detailed Description
A method for evaluating technical indexes of an aluminum electrolysis cell comprises the following steps:
collecting electrolytic bath operation data, sorting, analyzing and classifying the data, establishing a database, establishing a technological standard, judging and analyzing, and adjusting and feeding back an analysis result.
The electrolytic cell operation data of the invention comprises: current intensity, target polar distance, pressure difference between grades, 1cm mass voltage drop, fluoride salt unit consumption, quasi-theoretical alumina unit consumption, constant volume blanking amount, molecular ratio range, primary crystal temperature, electrolyte temperature range, furnace bottom voltage drop, steel bar welding voltage drop, anode voltage drop, bus voltage drop, decomposition voltage, electrolyte voltage drop, set voltage, current efficiency range, aluminum yield range, AlF3Addition amount, NB set, aluminum level, electrolyte level, alumina amount.
Dividing the electrolytic cell into A, B, C, D, E five state grades by measuring the technical data of the operation process of the electrolytic cell;
process technical standards, as shown in the following table:
the evaluation analysis method comprises the following steps: day judgment, week judgment and month judgment;
the daily judgment is to judge the operation condition, curve operation condition, parameter matching condition, aluminum discharging precision, influence of three operations (pole changing, aluminum discharging and bus lifting) on the electrolytic cell and abnormal processing condition of each electrolytic cell.
The week judgment mainly judges the type of the tank condition, the aluminum production efficiency, the revision of the process standard and the deviation correction of the actual process control.
The monthly evaluation mainly comprises the steps of evaluating the running trend of the electrolytic cell and exploring a process route.
And in abnormal conditions, the correction list must be sent to a corresponding workshop.
Claims (6)
1. A method for judging technical indexes of an aluminum electrolysis cell is characterized by comprising the following steps: collecting electrolytic bath operation data, sorting, analyzing and classifying the data, establishing a database, establishing a technological standard, judging and analyzing, and adjusting and feeding back an analysis result.
2. The method for evaluating the technical index of the aluminum electrolysis cell according to claim 1, wherein the method comprises the following steps: the electrolyzer operating data comprises: current intensity, target polar distance, pressure difference between grades, 1cm mass voltage drop, fluoride salt unit consumption, quasi-theoretical alumina unit consumption, constant volume blanking amount, molecular ratio range, primary crystal temperature, electrolyte temperature range, furnace bottom voltage drop, steel bar welding voltage drop, anode voltage drop, bus voltage drop, decomposition voltage, electrolyte voltage drop, set voltage, current efficiency range, aluminum yield range, AlF3Addition amount, NB set, aluminum level, electrolyte level, alumina amount.
3. The method for evaluating the technical index of the aluminum electrolysis cell according to claim 1, wherein the method comprises the following steps: the established technical standard is as follows:
dividing the electrolytic cell into A, B, C, D, E five state grades by measuring the technical data of the operation process of the electrolytic cell;
the technical standard of the process is as follows:
4. the method for evaluating the technical index of the aluminum electrolysis cell according to claim 1, wherein the method comprises the following steps: the evaluation analysis method comprises the following steps: day judgment, week judgment and month judgment;
the daily judgment is to judge the operation condition, curve operation condition, parameter matching condition, aluminum production precision and the influence of three operations on the electrolytic cell and abnormal processing condition of each electrolytic cell;
the week judgment mainly judges the type of the tank condition, the aluminum production efficiency, the revision of the process standard and the correction of the actual process control;
the monthly evaluation mainly comprises the steps of evaluating the running trend of the electrolytic cell and exploring a process route.
5. The method for evaluating the technical index of the aluminum electrolysis cell according to claim 4, wherein the method comprises the following steps: the three operations are pole changing, aluminum discharging and bus lifting.
6. The method for evaluating the technical index of the aluminum electrolysis cell according to claim 1, wherein the method comprises the following steps: the adjustment and feedback are: when an abnormal condition occurs, an adjustment order is issued to a corresponding workshop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910931911.9A CN110751379A (en) | 2019-09-29 | 2019-09-29 | Method for judging technical indexes of aluminum electrolysis cell |
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| CN201910931911.9A CN110751379A (en) | 2019-09-29 | 2019-09-29 | Method for judging technical indexes of aluminum electrolysis cell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113962647A (en) * | 2021-10-19 | 2022-01-21 | 云南云铝润鑫铝业有限公司 | Aluminum electrolysis cell operation state judgment system and method |
| CN115896873A (en) * | 2022-11-14 | 2023-04-04 | 广域铭岛数字科技有限公司 | A method, device, equipment, and medium for setting the indicator amount of aluminum tapping |
| CN116334694A (en) * | 2023-04-14 | 2023-06-27 | 东北大学 | Intelligent aluminum electrolysis control method based on superheat degree data driving |
| CN117210879A (en) * | 2023-10-12 | 2023-12-12 | 中国铝业股份有限公司 | Aluminum fluoride addition amount calculating method for aluminum electrolysis cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117210879A (en) * | 2023-10-12 | 2023-12-12 | 中国铝业股份有限公司 | Aluminum fluoride addition amount calculating method for aluminum electrolysis cell |
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