EP4276202A4 - Method for charging raw material into blast furnace - Google Patents

Method for charging raw material into blast furnace

Info

Publication number
EP4276202A4
EP4276202A4 EP22755842.6A EP22755842A EP4276202A4 EP 4276202 A4 EP4276202 A4 EP 4276202A4 EP 22755842 A EP22755842 A EP 22755842A EP 4276202 A4 EP4276202 A4 EP 4276202A4
Authority
EP
European Patent Office
Prior art keywords
raw material
blast furnace
charging raw
charging
blast
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
EP22755842.6A
Other languages
German (de)
French (fr)
Other versions
EP4276202A1 (en
Inventor
Koki Terui
Masaru Ida
Takeshi Sato
Yasushi Ogasawara
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 EP4276202A1 publication Critical patent/EP4276202A1/en
Publication of EP4276202A4 publication Critical patent/EP4276202A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
    • 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 peculiar to furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • 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
    • F27B3/18—Arrangements of devices for charging
    • 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
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • 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
    • F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Manufacture Of Iron (AREA)
EP22755842.6A 2021-02-19 2022-01-24 Method for charging raw material into blast furnace Pending EP4276202A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021025657 2021-02-19
PCT/JP2022/002471 WO2022176518A1 (en) 2021-02-19 2022-01-24 Method for charging raw material into blast furnace

Publications (2)

Publication Number Publication Date
EP4276202A1 EP4276202A1 (en) 2023-11-15
EP4276202A4 true EP4276202A4 (en) 2024-08-14

Family

ID=82931538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22755842.6A Pending EP4276202A4 (en) 2021-02-19 2022-01-24 Method for charging raw material into blast furnace

Country Status (5)

Country Link
EP (1) EP4276202A4 (en)
JP (1) JP7343052B2 (en)
KR (1) KR20230109743A (en)
CN (1) CN116710577A (en)
WO (1) WO2022176518A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011065513A1 (en) * 2009-11-24 2011-06-03 Ｊｆｅスチール株式会社 Material segregation apparatus for blast furnace top bunker
JP2012072471A (en) * 2010-09-29 2012-04-12 Jfe Steel Corp Furnace top bunker, and charging method of raw material to blast furnace using the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62218507A (en) * 1986-03-17 1987-09-25 Sumitomo Metal Ind Ltd Raw material charging method for bell-less blast furnace
JP4460661B2 (en) 1998-12-15 2010-05-12 Ｊｆｅスチール株式会社 How to use blast furnace top bunker
JP4591520B2 (en) 2008-02-15 2010-12-01 Ｊｆｅスチール株式会社 Raw material charging method for blast furnace using furnace top bunker and bellless type charging equipment
JP2016053201A (en) * 2014-09-04 2016-04-14 Ｊｆｅスチール株式会社 Method for charging raw material into blast furnace
JP6304174B2 (en) * 2015-08-19 2018-04-04 Ｊｆｅスチール株式会社 Raw material charging method to blast furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011065513A1 (en) * 2009-11-24 2011-06-03 Ｊｆｅスチール株式会社 Material segregation apparatus for blast furnace top bunker
JP2012072471A (en) * 2010-09-29 2012-04-12 Jfe Steel Corp Furnace top bunker, and charging method of raw material to blast furnace using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022176518A1 *

Also Published As

Publication number Publication date
WO2022176518A1 (en) 2022-08-25
EP4276202A1 (en) 2023-11-15
CN116710577A (en) 2023-09-05
JPWO2022176518A1 (en) 2022-08-25
KR20230109743A (en) 2023-07-20
JP7343052B2 (en) 2023-09-12

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Effective date: 20240717

RIC1 Information provided on ipc code assigned before grant

Ipc: F27D 3/00 20060101ALI20240711BHEP

Ipc: C21B 7/20 20060101ALI20240711BHEP

Ipc: F27D 3/10 20060101ALI20240711BHEP

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