EP1310573A3 - Process to produce a metal melt on the basis of a dynamic process model, including a correction model - Google Patents

Process to produce a metal melt on the basis of a dynamic process model, including a correction model Download PDF

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Publication number
EP1310573A3
EP1310573A3 EP02450259A EP02450259A EP1310573A3 EP 1310573 A3 EP1310573 A3 EP 1310573A3 EP 02450259 A EP02450259 A EP 02450259A EP 02450259 A EP02450259 A EP 02450259A EP 1310573 A3 EP1310573 A3 EP 1310573A3
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EP
European Patent Office
Prior art keywords
variable
model
process variable
actual
actual process
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.)
Granted
Application number
EP02450259A
Other languages
German (de)
French (fr)
Other versions
EP1310573A2 (en
EP1310573B1 (en
Inventor
Norbert Dipl.-Ing. Dr. Ramaseder
Stefan Dipl.-Ing. Dr. Dimitrov
Johannes Dipl.-Ing. Steins
Yuyou Dipl.-Ing. Dr. Zhai
Johannes Dipl.-Ing. Dr. Müller
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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Filing date
Publication date
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Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP1310573A2 publication Critical patent/EP1310573A2/en
Publication of EP1310573A3 publication Critical patent/EP1310573A3/en
Application granted granted Critical
Publication of EP1310573B1 publication Critical patent/EP1310573B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014—Devices for monitoring temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0035—Devices for monitoring the weight of quantities added to the charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Bei einem Verfahren zur Herstellung einer Metallschmelze in einer hüttentechnischen Anlage, insbesondere zum Frischen einer Metallschmelze, werden auf einer nach einem Prozeßmodell ablaufenden und die hüttentechnische Anlage steuernden Rechentechnik, wobei das Prozeßmodell das Verhalten für mindestens einen variablen Prozeßparameter zwischen einer Ist-Prozeßgröße, einer Stellgröße und einer Prozeßendgröße beschreibt, folgende Schritte durchgeführt:
- mit dem Prozeßmodell wird mit zu einer bestimmten Zeit (ti) erhobenen Daten einer Ist-Prozeßgröße, wie der Temperatur der Schmelze und der chemischen Zusammensetzung der Schmelze, durch Simulation mit Rechentechnik unmittelbar zum Zeitpunkt der Erhebung der Ist-Prozeßgröße eine Prozeßgröße für einen späteren Zeitpunkt (ti + dt) ermittelt und
- bei Abweichungen der simulierten Prozeßgröße von einem gewünschten Soll-Wert werden mittels des Prozeßmodells mit Rechentechnik Korrekturmaßnahmen zur Änderung der Ist-Prozeßgröße errechnet und die Ist-Prozeßgröße entsprechend geändert,
- worauf zu einem späteren Zeitpunkt (ti + dt) mit weiters erhobenen Daten der Ist-Prozeßgröße das Verfahren wiederholt wird (Fig. 1).

Figure imgaf001
In a method for producing a molten metal in a metallurgical plant, in particular for refining a molten metal, are on a running according to a process model and controlling the metallurgical plant computing technique, the process model behavior for at least one variable process parameter between an actual process variable, a manipulated variable and a process end size, the following steps are performed:
- With the process model is at a certain time (t i ) collected data of an actual process variable, such as the temperature of the melt and the chemical composition of the melt, by simulation with computer technology directly at the time of collection of the actual process size, a process variable for a later time (t i + dt) and determined
- In case of deviations of the simulated process variable from a desired target value corrective measures for changing the actual process variable are calculated by means of the process model with computer technology and the actual process variable is changed accordingly,
- Whereupon at a later time (t i + dt) with further collected data of the actual process variable, the method is repeated (Fig. 1).
Figure imgaf001
EP02450259A 2001-11-13 2002-11-11 Process to produce a metal melt on the basis of a dynamic process model, including a correction model Revoked EP1310573B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT17842001 2001-11-13
AT0178401A AT411068B (en) 2001-11-13 2001-11-13 METHOD FOR PRODUCING A METAL MELT IN A LODGE TECHNICAL PLANT

Publications (3)

Publication Number Publication Date
EP1310573A2 EP1310573A2 (en) 2003-05-14
EP1310573A3 true EP1310573A3 (en) 2008-01-23
EP1310573B1 EP1310573B1 (en) 2012-09-26

Family

ID=3688935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02450259A Revoked EP1310573B1 (en) 2001-11-13 2002-11-11 Process to produce a metal melt on the basis of a dynamic process model, including a correction model

Country Status (5)

Country Link
EP (1) EP1310573B1 (en)
KR (1) KR100904006B1 (en)
AT (1) AT411068B (en)
BR (1) BRPI0206891B1 (en)
ES (1) ES2396053T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005032929A1 (en) * 2004-11-12 2006-05-18 Sms Demag Ag Production of stainless steel of the ferritic steel group AISI 4xx in an AOD converter
DE102004055206B4 (en) * 2004-11-16 2012-08-30 Sms Siemag Aktiengesellschaft Process for producing high manganese and low carbon steel
CN100507770C (en) * 2006-05-30 2009-07-01 宝山钢铁股份有限公司 Method for determining the time of hot rolling heating stove bar plate leavings in furnace
DE102006056672A1 (en) 2006-11-30 2008-06-05 Sms Demag Ag Method and apparatus for stainless steel production without electrical energy supply based on pig iron
DE102006056671A1 (en) 2006-11-30 2008-06-05 Sms Demag Ag Method and apparatus for stainless steel production without electrical energy supply on the basis of pig iron pretreated in a DDD plant
DE102010035411A1 (en) * 2010-08-25 2012-03-01 Sms Siemag Ag Method for controlling the temperature of the metal bath during the blowing process in a converter
EP2789960B1 (en) * 2013-04-12 2018-12-19 Refractory Intellectual Property GmbH & Co. KG Method for determining the condition of a fire-resistant lining of a metallurgical melting vessel
US10935320B2 (en) 2013-04-12 2021-03-02 Refractory Intellectual Property Gmbh & Co. Kg Method for determining the state of a refractory lining of a metallurgical vessel for molten metal in particular
CN115261549B (en) * 2022-06-22 2023-09-26 包头钢铁（集团）有限责任公司 Control method for 150t converter high-phosphorus high-silicon single slag model

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05195035A (en) * 1992-01-24 1993-08-03 Nippon Steel Corp Device for controlling blowing converter
JPH05339617A (en) * 1992-06-04 1993-12-21 Nkk Corp Converter blowing method
JP2000144229A (en) * 1998-11-09 2000-05-26 Nkk Corp Method for predicting slopping in converter and device therefor
WO2002014562A2 (en) * 2000-08-11 2002-02-21 Dofasco Inc. Desulphurization reagent control method and system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855519A (en) * 1981-09-29 1983-04-01 Nippon Yakin Kogyo Co Ltd Controlling method for operation of aod furnace with computer simulation
SE452475B (en) * 1983-03-21 1987-11-30 Nippon Yakin Kogyo Co Ltd PROCEDURE FOR COMPUTER CONTROLLED COOLING OF A STEEL MELT
US5327357A (en) * 1991-12-03 1994-07-05 Praxair Technology, Inc. Method of decarburizing molten metal in the refining of steel using neural networks
US5522915A (en) * 1993-09-03 1996-06-04 Heraeus Electronite Japan, Ltd. Method and apparatus for sequentially and continuously determining concentrations of carbon, hydrogen, and nitrogen in molten steel, and method and apparatus for rapidly determining trace amounts of carbon in molten steel
US6017143A (en) * 1996-03-28 2000-01-25 Rosemount Inc. Device in a process system for detecting events
JP4643771B2 (en) * 1996-12-31 2011-03-02 ローズマウント インコーポレイテッド Method and apparatus for verifying the validity of control signals from field devices
JP3580177B2 (en) * 1999-04-23 2004-10-20 住友金属工業株式会社 Decarburization refining method for Cr-containing molten steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05195035A (en) * 1992-01-24 1993-08-03 Nippon Steel Corp Device for controlling blowing converter
JPH05339617A (en) * 1992-06-04 1993-12-21 Nkk Corp Converter blowing method
JP2000144229A (en) * 1998-11-09 2000-05-26 Nkk Corp Method for predicting slopping in converter and device therefor
WO2002014562A2 (en) * 2000-08-11 2002-02-21 Dofasco Inc. Desulphurization reagent control method and system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KOMATANI M ET AL: "DEVELOPMENT OF THE AUTOMATIC REFINING CONTROL SYSTEM IN BOF *", CAHIERS D'INFORMATIONS TECHNIQUES DE LA REVUE DE METALLURGIE, REVUE DE METALLURGIE. PARIS, FR, vol. 88, no. 6, 1 June 1991 (1991-06-01), pages 531 - 536, XP000261612, ISSN: 0035-1563 *
TOSHIO HATANAKA ET AL: "DEVELOPMENT OF BLOWING CONTROL SYSTEM IN BOF APPLYING AI TECHNOLOGY", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON INDUSTRIAL ELECTRONICS,CONTROL AND INSTRUMENTATION (IECON). KOBE, OCT. 28 - NOV. 1, 1991, NES YORK, IEEE, US, vol. VOL. 1 CONF. 17, 28 October 1991 (1991-10-28), pages 48 - 53, XP000346266, ISBN: 0-87942-688-8 *

Also Published As

Publication number Publication date
BRPI0206891B1 (en) 2016-07-05
EP1310573A2 (en) 2003-05-14
ATA17842001A (en) 2003-02-15
ES2396053T3 (en) 2013-02-18
EP1310573B1 (en) 2012-09-26
AT411068B (en) 2003-09-25
KR20030040135A (en) 2003-05-22
KR100904006B1 (en) 2009-06-22
BR0206891A (en) 2004-06-15

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