BR8605479A - Processo para controlar a alumina alimentada a celulas de reducao para produzir aluminio - Google Patents
Processo para controlar a alumina alimentada a celulas de reducao para produzir aluminioInfo
- Publication number
- BR8605479A BR8605479A BR8605479A BR8605479A BR8605479A BR 8605479 A BR8605479 A BR 8605479A BR 8605479 A BR8605479 A BR 8605479A BR 8605479 A BR8605479 A BR 8605479A BR 8605479 A BR8605479 A BR 8605479A
- Authority
- BR
- Brazil
- Prior art keywords
- alumines
- supplied
- control
- produce aluminum
- reduction cells
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
-
- 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
- C25C3/20—Automatic control or regulation of cells
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Medical Informatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Evolutionary Computation (AREA)
- Health & Medical Sciences (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO850700A NO166821C (no) | 1985-02-21 | 1985-02-21 | Fremgangsmaate for styring av aluminiumoksyd-tilfoerselen til elektrolyseovner for fremstilling av aluminium. |
PCT/NO1986/000017 WO1986005008A1 (en) | 1985-02-21 | 1986-02-17 | Method of controlling the alumina feed into reduction cells for producing aluminium |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8605479A true BR8605479A (pt) | 1987-04-22 |
Family
ID=19888137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8605479A BR8605479A (pt) | 1985-02-21 | 1986-02-17 | Processo para controlar a alumina alimentada a celulas de reducao para produzir aluminio |
Country Status (15)
Country | Link |
---|---|
US (1) | US4766552A (pt) |
EP (1) | EP0211924B1 (pt) |
JP (1) | JP2641202B2 (pt) |
AR (1) | AR240487A1 (pt) |
AT (1) | ATE69515T1 (pt) |
AU (1) | AU588861B2 (pt) |
BR (1) | BR8605479A (pt) |
CA (1) | CA1304040C (pt) |
DE (1) | DE3682458D1 (pt) |
ES (1) | ES8707567A1 (pt) |
GR (1) | GR860492B (pt) |
IS (1) | IS1508B (pt) |
NO (1) | NO166821C (pt) |
NZ (1) | NZ215206A (pt) |
WO (1) | WO1986005008A1 (pt) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2581660B1 (fr) * | 1985-05-07 | 1987-06-05 | Pechiney Aluminium | Procede de regulation precise d'une faible teneur en alumine dans une cuve d'electrolyse ignee pour la production d'aluminium |
DE3839675C2 (de) * | 1988-11-24 | 1996-02-15 | Lawrenz Wolfhard | Optimierer für ein parameterabhängiges Steuerungssystem |
AU633227B2 (en) * | 1989-02-24 | 1993-01-21 | Comalco Aluminium Limited | Process for controlling aluminium smelting cells |
EP0671488A3 (en) | 1989-02-24 | 1996-01-17 | Comalco Alu | Process for controlling aluminum melt flow cell. |
ES2075401T3 (es) * | 1990-05-04 | 1995-10-01 | Alusuisse Lonza Services Ag | Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio. |
WO1997009468A1 (en) * | 1995-09-01 | 1997-03-13 | Auckland Uniservices Limited | Measurement of alumina in reduction pots |
FR2749858B1 (fr) * | 1996-06-17 | 1998-07-24 | Pechiney Aluminium | Procede de regulation de la teneur en alumine du bain des cuves d'electrolyse pour la production d'aluminium |
CA2230882C (en) | 1997-03-14 | 2004-08-17 | Dubai Aluminium Company Limited | Intelligent control of aluminium reduction cells using predictive and pattern recognition techniques |
DE10023690A1 (de) * | 2000-05-16 | 2001-11-22 | Philips Corp Intellectual Pty | Gerät mit einem Regelkreis |
FR2830875B1 (fr) * | 2001-10-15 | 2004-05-28 | Pechiney Aluminium | Procede de regulation d'une cellule d'electrolyse pour la production d'aluminium |
US6837982B2 (en) | 2002-01-25 | 2005-01-04 | Northwest Aluminum Technologies | Maintaining molten salt electrolyte concentration in aluminum-producing electrolytic cell |
US7036097B1 (en) | 2004-11-30 | 2006-04-25 | Alcan International Limited | Method for designing a cascade of digital filters for use in controling an electrolysis cell |
CN100355943C (zh) * | 2004-11-30 | 2007-12-19 | 中国铝业股份有限公司 | 氧化铝下料秤下料静态逻辑控制器 |
NO328080B1 (no) | 2007-11-19 | 2009-11-30 | Norsk Hydro As | Fremgangsmate og anordning for styring av en elektrolysecelle |
US8088269B1 (en) * | 2009-07-21 | 2012-01-03 | Alcoa Inc. | System and method for measuring alumina qualities and communicating the same |
CN102965692B (zh) * | 2012-11-16 | 2015-04-29 | 中国铝业股份有限公司 | 一种铝电解槽自动兑料控制装置 |
GB201602613D0 (en) * | 2016-02-15 | 2016-03-30 | Dubai Aluminium Pjsc And Newsouth Innovations Pty Ltd | Method for estimating dynamic state variables in an electrolytic cell suitable for the Hall-Héroult electrolysis process |
US9996074B2 (en) | 2016-09-21 | 2018-06-12 | International Business Machines Corporation | System and predictive modeling method for smelting process control based on multi-source information with heterogeneous relatedness |
CN110129832B (zh) * | 2019-06-21 | 2021-04-09 | 广西大学 | 一种铝电解过程槽电压的多目标优化方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB128491A (en) * | 1918-11-01 | 1919-06-26 | Ernest Malcolm Kelly | Improvements in and relating to Steering Gears for Ships and other Floating Structures. |
GB150762A (en) * | 1919-04-04 | 1920-09-06 | Robert James Anderson | Improvements in and relating to furnaces or kilns |
FI63497C (fi) * | 1972-07-21 | 1983-06-10 | Asea Ab | Sjaelvinstaellande regulator |
JPS52114246A (en) * | 1976-03-22 | 1977-09-24 | Toshiba Corp | Elastic surface wave device |
GB1583545A (en) * | 1976-08-04 | 1981-01-28 | Martin Sanchez J | Control systems |
AU528431B2 (en) * | 1980-07-18 | 1983-04-28 | Tokyo Shibaura Denki Kabushiki Kaisha | Process control |
FR2487386A1 (fr) * | 1980-07-23 | 1982-01-29 | Pechiney Aluminium | Procede et appareillage pour reguler de facon precise la cadence d'introduction et la teneur en alumine d'une cuve d'electrolyse ignee, et application a la production d'aluminium |
US4368510A (en) * | 1980-10-20 | 1983-01-11 | Leeds & Northrup Company | Automatic identification system for self tuning process controller |
US4425201A (en) * | 1982-01-27 | 1984-01-10 | Reynolds Metals Company | Method for improved alumina control in aluminum electrolytic cells |
US4539633A (en) * | 1982-06-16 | 1985-09-03 | Tokyo Shibaura Denki Kabushiki Kaisha | Digital PID process control apparatus |
JPH0668691B2 (ja) * | 1983-06-03 | 1994-08-31 | オムロン株式会社 | 離散時間型オン/オフ・スイツチング適応制御装置 |
JPH07104715B2 (ja) * | 1984-01-18 | 1995-11-13 | 株式会社日立製作所 | パラメ−タの同定方法 |
-
1985
- 1985-02-21 NO NO850700A patent/NO166821C/no not_active IP Right Cessation
-
1986
- 1986-02-17 DE DE8686901526T patent/DE3682458D1/de not_active Expired - Lifetime
- 1986-02-17 WO PCT/NO1986/000017 patent/WO1986005008A1/en active IP Right Grant
- 1986-02-17 JP JP61501382A patent/JP2641202B2/ja not_active Expired - Fee Related
- 1986-02-17 AT AT86901526T patent/ATE69515T1/de not_active IP Right Cessation
- 1986-02-17 EP EP86901526A patent/EP0211924B1/en not_active Expired
- 1986-02-17 US US06/929,291 patent/US4766552A/en not_active Expired - Lifetime
- 1986-02-17 AU AU54557/86A patent/AU588861B2/en not_active Ceased
- 1986-02-17 BR BR8605479A patent/BR8605479A/pt not_active IP Right Cessation
- 1986-02-18 NZ NZ215206A patent/NZ215206A/xx unknown
- 1986-02-18 IS IS3077A patent/IS1508B/is unknown
- 1986-02-20 GR GR860492A patent/GR860492B/el unknown
- 1986-02-20 CA CA000502303A patent/CA1304040C/en not_active Expired - Lifetime
- 1986-02-20 ES ES552216A patent/ES8707567A1/es not_active Expired
- 1986-02-21 AR AR303204A patent/AR240487A1/es active
Also Published As
Publication number | Publication date |
---|---|
NO850700L (no) | 1986-08-22 |
EP0211924A1 (en) | 1987-03-04 |
JPS62502051A (ja) | 1987-08-13 |
IS1508B (is) | 1992-09-29 |
AU5455786A (en) | 1986-09-10 |
AR240487A1 (es) | 1990-04-30 |
US4766552A (en) | 1988-08-23 |
CA1304040C (en) | 1992-06-23 |
IS3077A7 (is) | 1986-08-22 |
AU588861B2 (en) | 1989-09-28 |
GR860492B (en) | 1986-06-24 |
ATE69515T1 (de) | 1991-11-15 |
JP2641202B2 (ja) | 1997-08-13 |
EP0211924B1 (en) | 1991-11-13 |
NZ215206A (en) | 1989-10-27 |
ES552216A0 (es) | 1987-08-01 |
NO166821C (no) | 1991-09-04 |
ES8707567A1 (es) | 1987-08-01 |
NO166821B (no) | 1991-05-27 |
WO1986005008A1 (en) | 1986-08-28 |
DE3682458D1 (de) | 1991-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB19 | Grant procedure suspended (art. 19) | ||
FF | Decision: intention to grant | ||
HO | Change of classification |
Free format text: INT. CL. 5 C25C 3/20, G05B 13/04 |
|
KD | Notifcation of receipt (letter patent) | ||
FG | Letter patent granted | ||
B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 17/02/2001 |