EP4400607A4 - INTRA-FURNACE STATE INFERENCE DEVICE, INTRA-FURNACE STATE INFERENCE METHOD, AND MOLTEN STEEL MANUFACTURING METHOD - Google Patents

INTRA-FURNACE STATE INFERENCE DEVICE, INTRA-FURNACE STATE INFERENCE METHOD, AND MOLTEN STEEL MANUFACTURING METHOD

Info

Publication number
EP4400607A4
EP4400607A4 EP22898431.6A EP22898431A EP4400607A4 EP 4400607 A4 EP4400607 A4 EP 4400607A4 EP 22898431 A EP22898431 A EP 22898431A EP 4400607 A4 EP4400607 A4 EP 4400607A4
Authority
EP
European Patent Office
Prior art keywords
intra
furnace state
state inference
molten steel
steel manufacturing
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
EP22898431.6A
Other languages
German (de)
French (fr)
Other versions
EP4400607A1 (en
Inventor
Hiroto Kase
Tomohiro Sugino
Ryo Kawabata
Yuki Kimura
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
Publication of EP4400607A1 publication Critical patent/EP4400607A1/en
Publication of EP4400607A4 publication Critical patent/EP4400607A4/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
    • C21C5/42—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
    • 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
    • C21C5/52—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP22898431.6A 2021-11-29 2022-11-11 INTRA-FURNACE STATE INFERENCE DEVICE, INTRA-FURNACE STATE INFERENCE METHOD, AND MOLTEN STEEL MANUFACTURING METHOD Pending EP4400607A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021193655 2021-11-29
PCT/JP2022/042138 WO2023095647A1 (en) 2021-11-29 2022-11-11 Intra-furnace state inference device, intra-furnace state inference method, and molten steel manufacturing method

Publications (2)

Publication Number Publication Date
EP4400607A1 EP4400607A1 (en) 2024-07-17
EP4400607A4 true EP4400607A4 (en) 2025-01-15

Family

ID=86539542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22898431.6A Pending EP4400607A4 (en) 2021-11-29 2022-11-11 INTRA-FURNACE STATE INFERENCE DEVICE, INTRA-FURNACE STATE INFERENCE METHOD, AND MOLTEN STEEL MANUFACTURING METHOD

Country Status (7)

Country Link
US (1) US20250179597A1 (en)
EP (1) EP4400607A4 (en)
JP (1) JP7392897B2 (en)
KR (1) KR20240090437A (en)
CN (1) CN118103530A (en)
TW (1) TWI841072B (en)
WO (1) WO2023095647A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI909628B (en) * 2024-08-19 2025-12-21 中國鋼鐵股份有限公司 Method and system for material change and slag control in blast furnace

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005036289A (en) * 2003-07-16 2005-02-10 Kobe Steel Ltd Model parameter decision method and program therefor, and model prediction method and program therefor
JP6658804B2 (en) * 2017-07-04 2020-03-04 Ｊｆｅスチール株式会社 Initial component concentration correction device, initial component concentration correction method, refining process state estimation method, and converter operation method
EP3770279A1 (en) * 2018-03-19 2021-01-27 JFE Steel Corporation Molten metal component estimation device, molten metal component estimation method, and molten metal production method
US20210216680A1 (en) * 2018-05-14 2021-07-15 Jfe Steel Corporation Molten metal component estimation device, method of estimating molten metal component, and method of manufacturing molten metal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004360044A (en) 2003-06-06 2004-12-24 Nippon Steel Corp Apparatus and method for estimating molten steel temperature
JP2014201770A (en) * 2013-04-02 2014-10-27 株式会社神戸製鋼所 Estimation apparatus and estimation method of prediction model of converter
JP6376200B2 (en) * 2015-11-02 2018-08-22 Ｊｆｅスチール株式会社 Molten state estimation device, molten state estimation method, and molten metal manufacturing method
BR112018071126B1 (en) * 2016-04-13 2022-12-27 Jfe Steel Corporation METHOD FOR ANALYZING SLAG AND METHOD FOR REFINING MOLTEN IRON
CN112347530B (en) * 2020-09-27 2024-05-03 安徽工业大学 Method for calculating steel tapping time of steelmaking converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005036289A (en) * 2003-07-16 2005-02-10 Kobe Steel Ltd Model parameter decision method and program therefor, and model prediction method and program therefor
JP6658804B2 (en) * 2017-07-04 2020-03-04 Ｊｆｅスチール株式会社 Initial component concentration correction device, initial component concentration correction method, refining process state estimation method, and converter operation method
EP3770279A1 (en) * 2018-03-19 2021-01-27 JFE Steel Corporation Molten metal component estimation device, molten metal component estimation method, and molten metal production method
US20210216680A1 (en) * 2018-05-14 2021-07-15 Jfe Steel Corporation Molten metal component estimation device, method of estimating molten metal component, and method of manufacturing molten metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023095647A1 *

Also Published As

Publication number Publication date
EP4400607A1 (en) 2024-07-17
TWI841072B (en) 2024-05-01
CN118103530A (en) 2024-05-28
JP7392897B2 (en) 2023-12-06
JPWO2023095647A1 (en) 2023-06-01
TW202321468A (en) 2023-06-01
WO2023095647A1 (en) 2023-06-01
US20250179597A1 (en) 2025-06-05
KR20240090437A (en) 2024-06-21

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