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WO2005062846A3 - Tundish control - Google Patents

Tundish control Download PDF

Info

Publication number
WO2005062846A3
WO2005062846A3 PCT/US2004/042886 US2004042886W WO2005062846A3 WO 2005062846 A3 WO2005062846 A3 WO 2005062846A3 US 2004042886 W US2004042886 W US 2004042886W WO 2005062846 A3 WO2005062846 A3 WO 2005062846A3
Authority
WO
WIPO (PCT)
Prior art keywords
tundish
steel
molten metal
continuous caster
level
Prior art date
Application number
PCT/US2004/042886
Other languages
French (fr)
Other versions
WO2005062846A2 (en
Inventor
Gregory A Meszaros
Frederick J Mannion
Thomas J Piccone
Frank M Kemeny
David I Walker
Original Assignee
Uec Technologies Llc
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 Uec Technologies Llc filed Critical Uec Technologies Llc
Publication of WO2005062846A2 publication Critical patent/WO2005062846A2/en
Publication of WO2005062846A3 publication Critical patent/WO2005062846A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

Microwave transmission and reception, and analysis thereof, are used to monitor the level of molten metal, paradigmatically steel, in a tundish receiving molten metal (steel) from a ladle or other vessel and passing it to the head of a continuous caster, while the steel in the tundish is covered with slag. The control factors may include level, weight or volume limits in the tundish derived from historical or real-time data, including data representing a predictable or developing vortex in the well feeding the continuous caster. The system is particularly useful in minimizing transition mix during change from one metal specification or grade to another.
PCT/US2004/042886 2003-12-23 2004-12-20 Tundish control WO2005062846A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53195903P 2003-12-23 2003-12-23
US60/531,959 2003-12-23

Publications (2)

Publication Number Publication Date
WO2005062846A2 WO2005062846A2 (en) 2005-07-14
WO2005062846A3 true WO2005062846A3 (en) 2006-03-30

Family

ID=34738728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/042886 WO2005062846A2 (en) 2003-12-23 2004-12-20 Tundish control

Country Status (2)

Country Link
US (1) US20050133192A1 (en)
WO (1) WO2005062846A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2090387A1 (en) 2008-01-18 2009-08-19 Corus Staal BV Method and apparatus for monitoring the surfaces of slag and molten metal in a mould
US8482295B2 (en) * 2009-02-23 2013-07-09 Hatch Ltd. Electromagnetic bath level measurement for pyrometallurgical furnaces
DE102010012062A1 (en) 2010-03-19 2011-09-22 Sms Siemag Ag Device and method for closing a discharge opening of a metallurgical vessel
FI2564141T4 (en) 2010-04-26 2024-02-02 Hatch Ltd Measurement of charge bank level in a metallurgical furnace
AU2012347778B2 (en) * 2011-12-06 2016-05-12 Paneratech, Inc. Microwave probe for furnace refractory material
JP2014153077A (en) * 2013-02-05 2014-08-25 Nippon Steel & Sumitomo Metal Method for measuring thickness of slag floating on molten metal surface
EP3040138B1 (en) * 2013-08-26 2019-10-09 NIPPON STEEL Stainless Steel Corporation Continuous casting method
US9880110B2 (en) 2014-03-26 2018-01-30 Paneratech, Inc. Material erosion monitoring system and method
US9488601B2 (en) 2014-03-26 2016-11-08 Paneratech, Inc. Material erosion monitoring system and method
CN106537088A (en) * 2014-07-30 2017-03-22 新日铁住金株式会社 Method for measuring thickness of slag floating on surface of molten metal
AT517889B1 (en) * 2015-10-28 2017-09-15 Primetals Technologies Austria GmbH Detecting a level of pouring in a mold
CN107398538B (en) * 2016-05-20 2020-01-21 上海梅山钢铁股份有限公司 Method for judging steel mixing area of variable-steel-type pouring continuous casting billet
CN108607968B (en) * 2016-12-12 2020-10-23 上海梅山钢铁股份有限公司 Continuous casting machine tundish slag entrapment forecasting method based on slag tapping detection
WO2022232570A1 (en) * 2021-04-30 2022-11-03 Darling Ingredients Inc. Fluid storage systems and monitoring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172394A1 (en) * 1984-08-20 1986-02-26 MANNESMANN Aktiengesellschaft Process and device for the control of slag in a tundish in the continuous casting of metal, especially steel
US4597048A (en) * 1983-09-07 1986-06-24 United States Steel Corporation Digital flow regulation of liquid-level control for a continuous casting mold
JPS6480762A (en) * 1987-09-22 1989-03-27 Osamu Matsumura Fuel injecting device
US6309442B1 (en) * 2000-02-25 2001-10-30 John D. Usher Refractory material sensor for determining level of molten metal and slag and method of using

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US3537505A (en) * 1965-12-30 1970-11-03 Concast Ag Method of controlling continuous casting
JPS53118161A (en) * 1977-03-25 1978-10-16 Sumitomo Metal Ind Measuring method of slug forming by micro wave level meter
US4219814A (en) * 1978-12-26 1980-08-26 Rca Corporation Scanning radar
EP0132296B1 (en) * 1983-06-20 1987-04-01 Sumitomo Metal Industries, Ltd. Apparatus for detecting slag outflow
US4601415A (en) * 1984-09-21 1986-07-22 Koffron Robert J Vortex inhibitor for molten metal discharge
DE3439369A1 (en) * 1984-10-27 1986-04-30 AMP Angewandte Meßtechnik und Prozeßsteuerung GmbH, 5100 Aachen METHOD AND DEVICE FOR DETECTING SLAG
US4799650A (en) * 1987-09-23 1989-01-24 Labate Michael D Slag retaining device with vortex inhibitor
US5042700A (en) * 1989-05-12 1991-08-27 Stopinc Aktiengesellschaft Process and equipment to determine disturbance variables when pouring molten metal from a container
US4968007A (en) * 1989-10-02 1990-11-06 Ajf, Inc. Anti-slag, anti-vortex tundish measurement apparatus
CA2038823A1 (en) * 1990-03-30 1991-10-01 Akio Nagamune In-furnace slag level measuring method and apparatus therefor
US5171513A (en) * 1992-05-12 1992-12-15 Usx Corporation Refractory article for preventing vortexing in a metallurgical vessel
CA2084845A1 (en) * 1992-12-08 1994-06-09 Roderick I.L. Guthrie Flow control device for the suppression of vortices
SE501472C2 (en) * 1993-02-03 1995-02-27 Stiftelsen Metallurg Forsk Ways of measuring the positions of surfaces between different layers in metallurgical processes
US5375816A (en) * 1993-11-16 1994-12-27 Wci Steel Corporation Slag detecting device and method
GB9417680D0 (en) * 1994-09-02 1994-10-19 Foseco Int Flow control device
US6280499B1 (en) * 1994-12-28 2001-08-28 Robert J. Koffron Yield metal pouring system
US6074598A (en) * 1998-06-15 2000-06-13 Tetron, Inc. Method and apparatus for slag separation sensing
US6130637A (en) * 1998-08-18 2000-10-10 Usx Corporation Measuring the thickness of hot slag in steelmaking
US6166681A (en) * 1998-08-18 2000-12-26 Usx Corporation Measuring the thickness of materials
JP3570360B2 (en) * 2000-08-31 2004-09-29 三菱電機株式会社 Wake turbulence detection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597048A (en) * 1983-09-07 1986-06-24 United States Steel Corporation Digital flow regulation of liquid-level control for a continuous casting mold
EP0172394A1 (en) * 1984-08-20 1986-02-26 MANNESMANN Aktiengesellschaft Process and device for the control of slag in a tundish in the continuous casting of metal, especially steel
JPS6480762A (en) * 1987-09-22 1989-03-27 Osamu Matsumura Fuel injecting device
US6309442B1 (en) * 2000-02-25 2001-10-30 John D. Usher Refractory material sensor for determining level of molten metal and slag and method of using

Also Published As

Publication number Publication date
US20050133192A1 (en) 2005-06-23
WO2005062846A2 (en) 2005-07-14

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