EP4083235A4 - Method for charging raw material into blast furnace - Google Patents

Method for charging raw material into blast furnace Download PDF

Info

Publication number
EP4083235A4
EP4083235A4 EP20916867.3A EP20916867A EP4083235A4 EP 4083235 A4 EP4083235 A4 EP 4083235A4 EP 20916867 A EP20916867 A EP 20916867A EP 4083235 A4 EP4083235 A4 EP 4083235A4
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
EP20916867.3A
Other languages
German (de)
French (fr)
Other versions
EP4083235A1 (en
Inventor
Kazuhira ICHIKAWA
Takeshi Sato
Tetsuya Yamamoto
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/JP2020/044357 external-priority patent/WO2021152989A1/en
Publication of EP4083235A1 publication Critical patent/EP4083235A1/en
Publication of EP4083235A4 publication Critical patent/EP4083235A4/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
    • C21B5/001—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
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/007—Conditions of the cokes or characterised by the cokes used
    • 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
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
EP20916867.3A 2020-01-29 2020-11-27 Method for charging raw material into blast furnace Pending EP4083235A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020012083 2020-01-29
PCT/JP2020/044357 WO2021152989A1 (en) 2020-01-29 2020-11-27 Method for charging raw material into blast furnace

Publications (2)

Publication Number Publication Date
EP4083235A1 EP4083235A1 (en) 2022-11-02
EP4083235A4 true EP4083235A4 (en) 2023-07-05

Family

ID=76310151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20916867.3A Pending EP4083235A4 (en) 2020-01-29 2020-11-27 Method for charging raw material into blast furnace

Country Status (5)

Country Link
EP (1) EP4083235A4 (en)
JP (1) JP6885528B1 (en)
KR (1) KR20220119154A (en)
CN (1) CN115023508B (en)
BR (1) BR112022014972A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562106A (en) * 1978-10-30 1980-05-10 Nippon Steel Corp Raw material charging method for blast furnace
JPS60208404A (en) * 1984-03-31 1985-10-21 Kawasaki Steel Corp Method and device for charging raw material to blast furnace
JPS63140006A (en) * 1986-12-01 1988-06-11 Kawasaki Steel Corp Method for charging raw material into blast furnace

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02305911A (en) * 1989-05-20 1990-12-19 Nippon Steel Corp Bell-less type raw material charging method for vertical furnace
JPH03153804A (en) * 1989-11-09 1991-07-01 Nippon Steel Corp Method for charging raw material into blast furnace
JP2797917B2 (en) * 1993-08-18 1998-09-17 住友金属工業株式会社 Blast furnace operation method
JPH08120311A (en) * 1994-10-18 1996-05-14 Nippon Steel Corp Method for charging raw material of blast furnace
JP3700458B2 (en) * 1999-03-31 2005-09-28 Ｊｆｅスチール株式会社 Low Si hot metal manufacturing method
JP3729026B2 (en) * 1999-06-25 2005-12-21 Ｊｆｅスチール株式会社 Raw material charging method to blast furnace
JP4114626B2 (en) * 2004-04-02 2008-07-09 住友金属工業株式会社 Blast furnace operation method
US7914599B2 (en) * 2004-11-17 2011-03-29 Ism, Inc. Slag conditioner composition, process for manufacture and method of use in steel production
JP5440077B2 (en) * 2008-10-31 2014-03-12 Ｊｆｅスチール株式会社 Raw material charging method for bell-less blast furnace
JP5515288B2 (en) * 2008-12-26 2014-06-11 Ｊｆｅスチール株式会社 Raw material charging method to blast furnace
JP5338310B2 (en) * 2008-12-26 2013-11-13 Ｊｆｅスチール株式会社 Raw material charging method to blast furnace
EP2851434B1 (en) * 2012-05-18 2019-02-20 JFE Steel Corporation Method for loading raw material into blast furnace
CN104364397B (en) * 2012-05-28 2016-08-17 新日铁住金株式会社 The raw material charging method of bell-less blast furnace
JP6167829B2 (en) * 2013-10-08 2017-07-26 新日鐵住金株式会社 Blast furnace operation method
JP6260288B2 (en) * 2014-01-16 2018-01-17 新日鐵住金株式会社 Raw material charging method for bell-less blast furnace
JP6331607B2 (en) * 2014-04-04 2018-05-30 新日鐵住金株式会社 How to charge the bellless blast furnace
JP6183412B2 (en) * 2015-05-28 2017-08-23 Ｊｆｅスチール株式会社 Raw material charging equipment for 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
JP2018024914A (en) * 2016-08-10 2018-02-15 株式会社神戸製鋼所 Method for charging raw material to blast furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562106A (en) * 1978-10-30 1980-05-10 Nippon Steel Corp Raw material charging method for blast furnace
JPS60208404A (en) * 1984-03-31 1985-10-21 Kawasaki Steel Corp Method and device for charging raw material to blast furnace
JPS63140006A (en) * 1986-12-01 1988-06-11 Kawasaki Steel Corp Method for charging raw material into blast furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021152989A1 *

Also Published As

Publication number Publication date
JPWO2021152989A1 (en) 2021-08-05
BR112022014972A2 (en) 2022-09-20
JP6885528B1 (en) 2021-06-16
KR20220119154A (en) 2022-08-26
EP4083235A1 (en) 2022-11-02
CN115023508A (en) 2022-09-06
CN115023508B (en) 2023-07-18

Similar Documents

Publication Publication Date Title
EP4151753A4 (en) Blast furnace operation method
EP3778928A4 (en) Blast furnace facility and operation method for blast furnace
EP4071161A4 (en) Method for synthesizing ursodeoxycholic acid using ba as raw material
EP1881051A4 (en) Process for producing blast furnace coke
EP2857529A4 (en) Method for charging raw material into bell-less blast furnace
EP4112761A4 (en) Steel for glass lining and production method therefor
EP3901547A4 (en) Furnace for producing secondary battery positive electrode material and method for firing secondary battery positive electrode material
EP3937333A4 (en) Apparatus to be charged, and charging and discharging control method
EP4067509A4 (en) Method for operating blast furnace, and facility equipped with blast furnace
EP3950635A4 (en) Production method for cement clinker and cement clinker powder
EP3896177A4 (en) Method for charging raw material into bell-less blast furnace, and blast furnace operation method
EP3786286A4 (en) PRODUCTION METHOD FOR PANCREATIC ß CELLS
EP3805411A4 (en) Comminution process for iron ore or iron ore products at natural humidity
EP4083235A4 (en) Method for charging raw material into blast furnace
EP2851437A4 (en) Method for loading raw material into blast furnace
EP2851435A4 (en) Method for charging starting material into blast furnace
EP4130239A4 (en) Method for inducing differentiation into pancreatic alpha cells
EP3760744A4 (en) Method for loading raw materials into blast furnace
EP3914670A4 (en) A production optimisation method for the ethylene furnaces
EP3950965A4 (en) Method for heating up hearth of blast furnace, and burner lance used for same
EP3933053A4 (en) Blast furnace operation method
EP4141130A4 (en) Blast furnace operation method and auxiliary facility for blast furnace
ZA202106787B (en) Method for directly preparing foaming material by using blast furnace slag
EP3985132A4 (en) Blast furnace irregularity assessment device, blast furnace irregularity assessment method, blast furnace operation method, and molten pig iron production method
EP3751010A4 (en) Method for loading raw materials into blast furnace

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: 20220728

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20230607

RIC1 Information provided on ipc code assigned before grant

Ipc: C21B 7/20 20060101ALI20230601BHEP

Ipc: C21B 5/00 20060101AFI20230601BHEP