WO2006091362A3 - System for optically analyzing a molten metal bath - Google Patents

System for optically analyzing a molten metal bath Download PDF

Info

Publication number
WO2006091362A3
WO2006091362A3 PCT/US2006/004167 US2006004167W WO2006091362A3 WO 2006091362 A3 WO2006091362 A3 WO 2006091362A3 US 2006004167 W US2006004167 W US 2006004167W WO 2006091362 A3 WO2006091362 A3 WO 2006091362A3
Authority
WO
WIPO (PCT)
Prior art keywords
molten metal
metal bath
optically analyzing
gas stream
argon gas
Prior art date
Application number
PCT/US2006/004167
Other languages
French (fr)
Other versions
WO2006091362A2 (en
Inventor
Larry E Cates
Original Assignee
Praxair Technology Inc
Larry E Cates
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 Praxair Technology Inc, Larry E Cates filed Critical Praxair Technology Inc
Priority to JP2007556179A priority Critical patent/JP2008537014A/en
Priority to MX2007010080A priority patent/MX2007010080A/en
Priority to CA002598111A priority patent/CA2598111A1/en
Priority to BRPI0607616A priority patent/BRPI0607616A2/en
Priority to EP06720385A priority patent/EP1853740A2/en
Publication of WO2006091362A2 publication Critical patent/WO2006091362A2/en
Publication of WO2006091362A3 publication Critical patent/WO2006091362A3/en

Links

Classifications

    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • 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
    • C21C5/4606—Lances or injectors
    • 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
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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
    • 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
    • F27D21/02—Observation or illuminating 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
    • F27D2003/164—Oxygen
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/166—Introducing a fluid jet or current into the charge the fluid being a treatment gas
    • 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
    • F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
    • 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
    • F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A system for optically analyzing a molten metal bath (4) wherein a high velocity argon gas stream (3) is passed from a lance (1) to the bath and is maintained coherent by a flame envelope (2) to provide a clear sight pathway through the argon gas stream for sighting the molten metal bath longitudinally through the argon gas stream from a remote or spaced sighting point (9) .
PCT/US2006/004167 2005-02-18 2006-02-08 System for optically analyzing a molten metal bath WO2006091362A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2007556179A JP2008537014A (en) 2005-02-18 2006-02-08 Optical analysis system for molten metal bath
MX2007010080A MX2007010080A (en) 2005-02-18 2006-02-08 System for optically analyzing a molten metal bath.
CA002598111A CA2598111A1 (en) 2005-02-18 2006-02-08 System for optically analyzing a molten metal bath
BRPI0607616A BRPI0607616A2 (en) 2005-02-18 2006-02-08 Method and apparatus for optically analyzing a molten metal bath
EP06720385A EP1853740A2 (en) 2005-02-18 2006-02-08 System for optically analyzing a molten metal bath

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/060,808 2005-02-18
US11/060,808 US20050145071A1 (en) 2003-03-14 2005-02-18 System for optically analyzing a molten metal bath

Publications (2)

Publication Number Publication Date
WO2006091362A2 WO2006091362A2 (en) 2006-08-31
WO2006091362A3 true WO2006091362A3 (en) 2009-05-07

Family

ID=36927886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/004167 WO2006091362A2 (en) 2005-02-18 2006-02-08 System for optically analyzing a molten metal bath

Country Status (12)

Country Link
US (1) US20050145071A1 (en)
EP (1) EP1853740A2 (en)
JP (1) JP2008537014A (en)
KR (1) KR20070103076A (en)
CN (1) CN101535507A (en)
AR (1) AR052294A1 (en)
BR (1) BRPI0607616A2 (en)
CA (1) CA2598111A1 (en)
MX (1) MX2007010080A (en)
TW (1) TW200636224A (en)
WO (1) WO2006091362A2 (en)
ZA (1) ZA200706792B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1019105C2 (en) 2001-10-03 2003-04-04 Corus Technology B V Method and device for controlling the proportion of crystals in a liquid-crystal mixture.
EP1380659A1 (en) * 2002-07-05 2004-01-14 Corus Technology BV Method for fractional crystallisation of a metal
DE602004012445T2 (en) * 2003-11-19 2009-03-12 Aleris Switzerland Gmbh PROCESS FOR COOLING MELT-LIQUID METAL IN FRACTIONAL CRYSTALLIZATION
WO2005079431A2 (en) * 2004-02-16 2005-09-01 Measurement Technology Laboratories Corporation Particulate filter and method of use
WO2005095658A1 (en) 2004-03-19 2005-10-13 Corus Technology Bv Method for the purification of a molten metal
NL1029612C2 (en) * 2005-07-26 2007-01-29 Corus Technology B V Method for analyzing liquid metal and device for use therein.
EP2029785B1 (en) * 2006-06-22 2011-04-13 Aleris Switzerland GmbH Method for the separation of molten aluminium and solid inclusions
ATE475724T1 (en) * 2006-06-28 2010-08-15 Aleris Switzerland Gmbh CRYSTALIZATION PROCESS FOR CLEANING A MELTED METAL, PARTICULARLY RECYCLED ALUMINUM
US7955414B2 (en) * 2006-07-07 2011-06-07 Aleris Switzerland Gmbh Method and device for metal purification and separation of purified metal from metal mother liquid such as aluminium
ITUD20060277A1 (en) † 2006-12-27 2008-06-28 Danieli Off Mecc DEVICE AND METHOD FOR MEASURING THE TEMPERATURE OF LIQUID METAL IN AN ELECTRIC OVEN
EP2333120A1 (en) * 2008-09-16 2011-06-15 Istc Co., Ltd. Process for producing molten iron
FR3021407B1 (en) * 2014-05-23 2016-07-01 Commissariat Energie Atomique DEVICE FOR ANALYZING OXIDABLE FUSION METAL BY LIBS TECHNIQUE
US20160033202A1 (en) * 2014-07-30 2016-02-04 Vareck Walla Door Assembly for Use with a Furnace
JP6427829B2 (en) * 2016-03-31 2018-11-28 大陽日酸株式会社 Cold iron source melting / smelting furnace, and melting / smelting furnace operating method
US11959811B2 (en) * 2019-12-20 2024-04-16 SSAB Enterprises, LLC Temperature sensors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6071466A (en) * 1996-10-17 2000-06-06 Voest Alpine Industries, Inc. Submergible probe for viewing and analyzing properties of a molten metal bath
US6125133A (en) * 1997-03-18 2000-09-26 Praxair, Inc. Lance/burner for molten metal furnace

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106756A (en) * 1976-11-01 1978-08-15 Pullman Berry Company Oxygen lance and sensing adapter arrangement
US4730925A (en) * 1985-09-20 1988-03-15 Nippon Steel Corporation Method of spectroscopically determining the composition of molten iron
US5830407A (en) * 1996-10-17 1998-11-03 Kvaerner U.S. Inc. Pressurized port for viewing and measuring properties of a molten metal bath
US5814125A (en) * 1997-03-18 1998-09-29 Praxair Technology, Inc. Method for introducing gas into a liquid
US6096261A (en) * 1997-11-20 2000-08-01 Praxair Technology, Inc. Coherent jet injector lance
US6142764A (en) * 1999-09-02 2000-11-07 Praxair Technology, Inc. Method for changing the length of a coherent jet
US6139310A (en) * 1999-11-16 2000-10-31 Praxair Technology, Inc. System for producing a single coherent jet
US6400747B1 (en) * 2001-05-18 2002-06-04 Praxair Technology, Inc. Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace
US6432163B1 (en) * 2001-06-22 2002-08-13 Praxair Technology, Inc. Metal refining method using differing refining oxygen sequence

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6071466A (en) * 1996-10-17 2000-06-06 Voest Alpine Industries, Inc. Submergible probe for viewing and analyzing properties of a molten metal bath
US6125133A (en) * 1997-03-18 2000-09-26 Praxair, Inc. Lance/burner for molten metal furnace

Also Published As

Publication number Publication date
KR20070103076A (en) 2007-10-22
JP2008537014A (en) 2008-09-11
CN101535507A (en) 2009-09-16
WO2006091362A2 (en) 2006-08-31
MX2007010080A (en) 2007-10-17
TW200636224A (en) 2006-10-16
CA2598111A1 (en) 2006-08-31
ZA200706792B (en) 2009-05-27
BRPI0607616A2 (en) 2016-11-01
EP1853740A2 (en) 2007-11-14
US20050145071A1 (en) 2005-07-07
AR052294A1 (en) 2007-03-07

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