EP4497838A4 - Hochofenbetriebsverfahren - Google Patents

Hochofenbetriebsverfahren

Info

Publication number
EP4497838A4
EP4497838A4 EP23807337.3A EP23807337A EP4497838A4 EP 4497838 A4 EP4497838 A4 EP 4497838A4 EP 23807337 A EP23807337 A EP 23807337A EP 4497838 A4 EP4497838 A4 EP 4497838A4
Authority
EP
European Patent Office
Prior art keywords
blast furnace
operation method
furnace operation
blast
furnace
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
EP23807337.3A
Other languages
English (en)
French (fr)
Other versions
EP4497838A1 (de
Inventor
Yudai Ikarashi
Koji Kimiya
Tatsuya KAISE
Daijirou YOSHIOKA
Tatsuya Iwasaki
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 EP4497838A1 publication Critical patent/EP4497838A1/de
Publication of EP4497838A4 publication Critical patent/EP4497838A4/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/21—Arrangements of devices for discharging
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Blast Furnaces (AREA)
EP23807337.3A 2022-05-19 2023-04-12 Hochofenbetriebsverfahren Pending EP4497838A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022082109 2022-05-19
PCT/JP2023/014825 WO2023223724A1 (ja) 2022-05-19 2023-04-12 高炉操業方法

Publications (2)

Publication Number Publication Date
EP4497838A1 EP4497838A1 (de) 2025-01-29
EP4497838A4 true EP4497838A4 (de) 2025-06-25

Family

ID=88835001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23807337.3A Pending EP4497838A4 (de) 2022-05-19 2023-04-12 Hochofenbetriebsverfahren

Country Status (4)

Country Link
EP (1) EP4497838A4 (de)
JP (1) JP7662043B2 (de)
CN (1) CN119855924A (de)
WO (1) WO2023223724A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196308A (ja) * 1987-10-07 1989-04-14 Kawasaki Steel Corp 高炉吹卸し操業方法
JP5785838B2 (ja) * 2011-09-27 2015-09-30 新日鉄住金エンジニアリング株式会社 閉塞開孔方法および閉塞開孔装置
JP6544175B2 (ja) * 2015-09-24 2019-07-17 日本製鉄株式会社 高炉炉底部における装入物および炉内残留物の昇温方法
KR20210123387A (ko) * 2019-03-27 2021-10-13 제이에프이 스틸 가부시키가이샤 로저의 승온 방법 및 그것에 이용하는 버너 랜스

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104605A (en) * 1980-12-22 1982-06-29 Sumitomo Metal Ind Ltd Method for blowing out of blast furnace
JPS57177905A (en) * 1981-04-24 1982-11-01 Kawasaki Steel Corp Emptying and blowing out operation for blast furnace
JPH0390505A (ja) * 1989-09-01 1991-04-16 Nippon Steel Corp 高炉吹卸し時の残銑低減方法
JP2602407B2 (ja) 1994-01-07 1997-04-23 川崎製鉄株式会社 高炉炉底内容物の炉外搬出方法
KR100754149B1 (ko) * 2001-09-06 2007-08-31 주식회사 포스코 고로의 종풍 조업 방법
JP2006137985A (ja) 2004-11-11 2006-06-01 Nippon Steel Corp 高炉改修時の操業方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196308A (ja) * 1987-10-07 1989-04-14 Kawasaki Steel Corp 高炉吹卸し操業方法
JP5785838B2 (ja) * 2011-09-27 2015-09-30 新日鉄住金エンジニアリング株式会社 閉塞開孔方法および閉塞開孔装置
JP6544175B2 (ja) * 2015-09-24 2019-07-17 日本製鉄株式会社 高炉炉底部における装入物および炉内残留物の昇温方法
KR20210123387A (ko) * 2019-03-27 2021-10-13 제이에프이 스틸 가부시키가이샤 로저의 승온 방법 및 그것에 이용하는 버너 랜스

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023223724A1 *

Also Published As

Publication number Publication date
WO2023223724A1 (ja) 2023-11-23
CN119855924A (zh) 2025-04-18
JP7662043B2 (ja) 2025-04-15
EP4497838A1 (de) 2025-01-29
JPWO2023223724A1 (de) 2023-11-23

Similar Documents

Publication Publication Date Title
EP4067510A4 (de) Hochofenbetriebsverfahren
EP4177359A4 (de) Betriebsführungsverfahren, verfahren zum betrieb eines hochofens, verfahren zur herstellung von geschmolzenem eisen, betriebsführungsvorrichtung
EP3879216A4 (de) Seitenblaslanze für einen schmelzofen und verwendungsverfahren
EP3950965A4 (de) Verfahren zum aufheizen eines herds eines hochofens und brennerlanze dafür
EP4141130A4 (de) Hochofenbetriebsverfahren und hilfsanlage für hochofen
CA3262278A1 (en) OPERATING METHOD OF A MELTING FURNACE INSTALLATION
CA3262329A1 (en) OPERATING METHOD OF A MELTING FURNACE INSTALLATION
EP4477762A4 (de) Betriebsverfahren für hochofen
EP3967670A4 (de) Verfahren zur modifizierung von stahlwerksschlacke und lanze
EP4497838A4 (de) Hochofenbetriebsverfahren
EP4303327A4 (de) Elektrischer ofen und stahlherstellungsverfahren
CA3295897A1 (en) Operation method of blast furnace
EP4477764A4 (de) Hochofenbetriebsverfahren
PL3911905T3 (pl) Piec wgłębny próżniowy do nawęglania elementów
CA221917S (en) Cassette furnace
PL4214341T3 (pl) Wielki piec do wytopu żelaza
PL4214339T3 (pl) Wielki piec do wytwarzania żelaza
EP4113044A4 (de) Verfahren zum auskleiden von metallurgischen einheiten
CA3298431A1 (en) Injector-burner for metallurgical furnaces
EP4083235A4 (de) Verfahren zum beschicken eines hochofens mit rohmaterial
GB202213759D0 (en) Improved blast furnace
CA3288751A1 (en) Smelting furnace arrangement
EM88924670002S (de) Feuerstätten
AU2025905122A0 (en) Blast Cone & Method
AU2021900978A0 (en) Method for Blast Initiation Optimisation

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20241021

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20250526

RIC1 Information provided on ipc code assigned before grant

Ipc: C21B 7/12 20060101ALI20250520BHEP

Ipc: F27B 1/21 20060101ALI20250520BHEP

Ipc: F27D 3/15 20060101ALI20250520BHEP

Ipc: C21B 7/14 20060101ALI20250520BHEP

Ipc: C21B 7/00 20060101ALI20250520BHEP

Ipc: C21B 5/00 20060101AFI20250520BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)