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 aluminio

Info

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
Application number
BR8605479A
Other languages
English (en)
Inventor
Johannes Aalbu
Tom Moen
Marit Stangeland Aalbu
Peter Borg
Original Assignee
Ardal Og Sunndal Verk
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ardal Og Sunndal Verk filed Critical Ardal Og Sunndal Verk
Publication of BR8605479A publication Critical patent/BR8605479A/pt

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)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
BR8605479A 1985-02-21 1986-02-17 Processo para controlar a alumina alimentada a celulas de reducao para produzir aluminio BR8605479A (pt)

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)

* Cited by examiner, † Cited by third party
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
IS3551A7 (is) * 1989-02-24 1990-08-25 Comalco Aluminium Limited Aðferð við stjórnun rafgreiningarkerja (bræðslukerja)
AU633227B2 (en) * 1989-02-24 1993-01-21 Comalco Aluminium Limited Process for controlling aluminium smelting cells
DE59105830D1 (de) * 1990-05-04 1995-08-03 Alusuisse Lonza Services Ag Regulierung und Stabilisierung des A1F3-Gehaltes in einer Aluminiumelektrolysezelle.
AU715544B2 (en) * 1995-09-01 2000-02-03 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)

* Cited by examiner, † Cited by third party
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
ATE48709T1 (de) * 1983-06-03 1989-12-15 Omron Tateisi Electronics Co Zeitdiskret selbstanpassender ein/ausschaltregler.
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

Also Published As

Publication number Publication date
AU5455786A (en) 1986-09-10
AU588861B2 (en) 1989-09-28
JPS62502051A (ja) 1987-08-13
EP0211924B1 (en) 1991-11-13
IS3077A7 (is) 1986-08-22
CA1304040C (en) 1992-06-23
EP0211924A1 (en) 1987-03-04
ES8707567A1 (es) 1987-08-01
ATE69515T1 (de) 1991-11-15
GR860492B (en) 1986-06-24
IS1508B (is) 1992-09-29
NO166821C (no) 1991-09-04
WO1986005008A1 (en) 1986-08-28
NZ215206A (en) 1989-10-27
NO850700L (no) 1986-08-22
NO166821B (no) 1991-05-27
DE3682458D1 (de) 1991-12-19
US4766552A (en) 1988-08-23
ES552216A0 (es) 1987-08-01
JP2641202B2 (ja) 1997-08-13
AR240487A1 (es) 1990-04-30

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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