ES8707567A1 - Metodo para controlar la alimentacion de alumina a celdas de reduccion para producir aluminio - Google Patents

Metodo para controlar la alimentacion de alumina a celdas de reduccion para producir aluminio

Info

Publication number
ES8707567A1
ES8707567A1 ES552216A ES552216A ES8707567A1 ES 8707567 A1 ES8707567 A1 ES 8707567A1 ES 552216 A ES552216 A ES 552216A ES 552216 A ES552216 A ES 552216A ES 8707567 A1 ES8707567 A1 ES 8707567A1
Authority
ES
Spain
Prior art keywords
alumina
controlling
reduction
model
reduction cells
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES552216A
Other languages
English (en)
Other versions
ES552216A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ardal og Sunndal Verk AS
Original Assignee
Ardal og Sunndal Verk AS
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 AS filed Critical Ardal og Sunndal Verk AS
Publication of ES8707567A1 publication Critical patent/ES8707567A1/es
Publication of ES552216A0 publication Critical patent/ES552216A0/es
Expired legal-status Critical Current

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)
  • Evolutionary Computation (AREA)
  • Medical Informatics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)

Abstract

METODO PARA CONTROLAR LA ALIMENTACION DE ALUMINA A CUBAS DE REDUCCION PARA PRODUCIR ALUMINIO. LA RELACION DE FUNCION NO LINEAL ENTRE LA RESISTENCIA Y LA CONCENTRACION DE ALUMINA DEL BAÑO ELECTROLITICO (1) SE EMPLEA PARA TENER UN CONOCIMIENTO DE LA CONCENTRACION DE ALUMINA EN TODO MOMENTO. SE ESTIMA LA DERIVADA DE ESTA FUNCION (3), SE CONTROLA EL SUMINISTRO DE ALUMINA, DE FORMA QUE EL VALOR DE LA DERIVADA OSCILE ALREDEDOR DE UN PUNTO DE TRABAJO LIBREMENTE SELECCIONADO CORRESPONDIENTE A UNA CONCENTRACION DE ALUMINA FAVORABLE PARA EL PROCEDIMIENTO, Y EN EL QUE SE APLICA UN MODELO LINEAL PARA LA RELACION ENTRE EL CAMBIO DE RESISTENCIA Y EL DE CONCENTRACION DE ALUMI
ES552216A 1985-02-21 1986-02-20 Metodo para controlar la alimentacion de alumina a celdas de reduccion para producir aluminio Expired ES8707567A1 (es)

Applications Claiming Priority (1)

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.

Publications (2)

Publication Number Publication Date
ES8707567A1 true ES8707567A1 (es) 1987-08-01
ES552216A0 ES552216A0 (es) 1987-08-01

Family

ID=19888137

Family Applications (1)

Application Number Title Priority Date Filing Date
ES552216A Expired ES8707567A1 (es) 1985-02-21 1986-02-20 Metodo para controlar la alimentacion de alumina a celdas de reduccion para producir aluminio

Country Status (15)

Country Link
US (1) US4766552A (es)
EP (1) EP0211924B1 (es)
JP (1) JP2641202B2 (es)
AR (1) AR240487A1 (es)
AT (1) ATE69515T1 (es)
AU (1) AU588861B2 (es)
BR (1) BR8605479A (es)
CA (1) CA1304040C (es)
DE (1) DE3682458D1 (es)
ES (1) ES8707567A1 (es)
GR (1) GR860492B (es)
IS (1) IS1508B (es)
NO (1) NO166821C (es)
NZ (1) NZ215206A (es)
WO (1) WO1986005008A1 (es)

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
AU633227B2 (en) * 1989-02-24 1993-01-21 Comalco Aluminium Limited Process for controlling aluminium smelting cells
NZ232580A (en) * 1989-02-24 1992-12-23 Comalco Alu Aluminium smelting process control
EP0455590B1 (de) * 1990-05-04 1995-06-28 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
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
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
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
IS3077A7 (is) 1986-08-22
NZ215206A (en) 1989-10-27
AU5455786A (en) 1986-09-10
NO166821B (no) 1991-05-27
EP0211924A1 (en) 1987-03-04
ATE69515T1 (de) 1991-11-15
JP2641202B2 (ja) 1997-08-13
CA1304040C (en) 1992-06-23
IS1508B (is) 1992-09-29
GR860492B (en) 1986-06-24
BR8605479A (pt) 1987-04-22
EP0211924B1 (en) 1991-11-13
NO850700L (no) 1986-08-22
JPS62502051A (ja) 1987-08-13
US4766552A (en) 1988-08-23
ES552216A0 (es) 1987-08-01
DE3682458D1 (de) 1991-12-19
AR240487A1 (es) 1990-04-30
NO166821C (no) 1991-09-04
AU588861B2 (en) 1989-09-28
WO1986005008A1 (en) 1986-08-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20040607