EP4047103A4 - Lance tip, converter internal temperature measuring equipment, and converter internal temperature measuring method - Google Patents

Lance tip, converter internal temperature measuring equipment, and converter internal temperature measuring method Download PDF

Info

Publication number
EP4047103A4
EP4047103A4 EP21745097.2A EP21745097A EP4047103A4 EP 4047103 A4 EP4047103 A4 EP 4047103A4 EP 21745097 A EP21745097 A EP 21745097A EP 4047103 A4 EP4047103 A4 EP 4047103A4
Authority
EP
European Patent Office
Prior art keywords
internal temperature
temperature measuring
converter internal
lance tip
measuring method
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.)
Pending
Application number
EP21745097.2A
Other languages
German (de)
French (fr)
Other versions
EP4047103A1 (en
Inventor
Masato Tomita
Masatsugu YAKABE
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Priority claimed from PCT/JP2021/000183 external-priority patent/WO2021149490A1/en
Publication of EP4047103A1 publication Critical patent/EP4047103A1/en
Publication of EP4047103A4 publication Critical patent/EP4047103A4/en
Pending legal-status Critical Current

Links

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
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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
    • 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
    • C21C5/48—Bottoms or tuyéres of converters
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5294—General arrangement or layout of the electric melt shop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/28—Arrangement of controlling, monitoring, alarm or the like 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
    • F27D19/00—Arrangements of controlling 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
    • 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
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C2005/5288—Measuring or 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
    • C21C2300/00—Process aspects
    • C21C2300/06—Modeling of the process, e.g. for control purposes; CII
    • 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
    • F27D2003/167—Introducing a fluid jet or current into the charge the fluid being a neutral 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/168—Introducing a fluid jet or current into the charge through a lance
    • 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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices
    • F27D2021/026—Observation or illuminating devices using a video installation
    • 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
EP21745097.2A 2020-01-22 2021-01-06 Lance tip, converter internal temperature measuring equipment, and converter internal temperature measuring method Pending EP4047103A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020008408 2020-01-22
PCT/JP2021/000183 WO2021149490A1 (en) 2020-01-22 2021-01-06 Lance tip, converter internal temperature measuring equipment, and converter internal temperature measuring method

Publications (2)

Publication Number Publication Date
EP4047103A1 EP4047103A1 (en) 2022-08-24
EP4047103A4 true EP4047103A4 (en) 2022-12-21

Family

ID=76753056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21745097.2A Pending EP4047103A4 (en) 2020-01-22 2021-01-06 Lance tip, converter internal temperature measuring equipment, and converter internal temperature measuring method

Country Status (4)

Country Link
EP (1) EP4047103A4 (en)
JP (1) JP6901059B1 (en)
KR (1) KR20220093224A (en)
CN (1) CN114829634A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599464B1 (en) * 1999-10-06 2003-07-29 Bernd Feldhaus Steelmaking lance with integral temperature probe
US20180163280A1 (en) * 2014-03-14 2018-06-14 Berry Metal Company Metal making lance with infrared camera in lance head
CN110628983A (en) * 2019-10-10 2019-12-31 北京科技大学 Converter smelting fire point area temperature continuous monitoring oxygen lance system and monitoring method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62226025A (en) 1986-03-28 1987-10-05 Sumitomo Metal Ind Ltd Measuring method for fire point temperature of steel making furnace
JPH1088221A (en) 1996-09-06 1998-04-07 Nkk Corp Probe for observing inner part of metallurgical furnace and method for observing inner part of metallurgical furnace
JP4750961B2 (en) * 2001-03-29 2011-08-17 新日本製鐵株式会社 Coke oven inside observation device
JP2006126062A (en) * 2004-10-29 2006-05-18 Jfe Steel Kk Temperature measurement method and apparatus for molten metal
JP2007322382A (en) 2006-06-05 2007-12-13 Nippon Steel Corp Temperature measuring method of molten steel in convertor
CN101638711B (en) * 2008-07-30 2011-07-20 天津三泰晟驰科技股份有限公司 Photographic device inside attachment-type refining furnace
CN202465764U (en) * 2012-03-06 2012-10-03 吕良玮 Oxygen gun with light transmitting device
CN202643731U (en) * 2012-04-24 2013-01-02 李宏亮 Oxygen lance with image collection device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599464B1 (en) * 1999-10-06 2003-07-29 Bernd Feldhaus Steelmaking lance with integral temperature probe
US20180163280A1 (en) * 2014-03-14 2018-06-14 Berry Metal Company Metal making lance with infrared camera in lance head
CN110628983A (en) * 2019-10-10 2019-12-31 北京科技大学 Converter smelting fire point area temperature continuous monitoring oxygen lance system and monitoring method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021149490A1 *

Also Published As

Publication number Publication date
EP4047103A1 (en) 2022-08-24
KR20220093224A (en) 2022-07-05
JPWO2021149490A1 (en) 2021-07-29
JP6901059B1 (en) 2021-07-14
CN114829634A (en) 2022-07-29

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Inventor name: YAKABE, MASATSUGU

Inventor name: TOMITA, MASATO

A4 Supplementary search report drawn up and despatched

Effective date: 20221117

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