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UA91662C2 - Self-fluxing pellets for blast furnaces and method for production thereof - Google Patents

Self-fluxing pellets for blast furnaces and method for production thereof

Info

Publication number
UA91662C2
UA91662C2 UAA200912723A UAA200912723A UA91662C2 UA 91662 C2 UA91662 C2 UA 91662C2 UA A200912723 A UAA200912723 A UA A200912723A UA A200912723 A UAA200912723 A UA A200912723A UA 91662 C2 UA91662 C2 UA 91662C2
Authority
UA
Ukraine
Prior art keywords
less
self
production
particle size
blast furnaces
Prior art date
Application number
UAA200912723A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Еисаку Ясуда
Нобухиро Хасегава
Йосиюки Мацуи
Судзи Китаяма
Original Assignee
Кабусики Кайся Кобе Сейко Се
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 Кабусики Кайся Кобе Сейко Се filed Critical Кабусики Кайся Кобе Сейко Се
Publication of UA91662C2 publication Critical patent/UA91662C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/02—General features in the manufacture of pig-iron by applying additives, e.g. fluxing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Disclosed is a self-fluxing pellet for blast furnace, which is characterized by having a CaO/SiOmass ratio of not I less than 0.8 and an MgO/SiOmass ratio of not less than 0.4. This self-fluxing pellet for blast furnace is further characterized by I having such a particle size distribution wherein the average particle size is 10-13 mm, those having a particle size of not less than 4 mm but less than 8 mm are in an amount of 6 % by mass or less, and those having a particle size of not less than 15 mm but less than 20 mm are in an amount of 7 % by mass or less.
UAA200912723A 2007-05-08 2008-04-25 Self-fluxing pellets for blast furnaces and method for production thereof UA91662C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007123658A JP4630304B2 (en) 2007-05-08 2007-05-08 Self-fluxing pellets for blast furnace and manufacturing method thereof

Publications (1)

Publication Number Publication Date
UA91662C2 true UA91662C2 (en) 2010-08-10

Family

ID=40002109

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200912723A UA91662C2 (en) 2007-05-08 2008-04-25 Self-fluxing pellets for blast furnaces and method for production thereof

Country Status (7)

Country Link
JP (1) JP4630304B2 (en)
CN (1) CN101688254B (en)
BR (1) BRPI0810521B1 (en)
RU (1) RU2455371C2 (en)
TW (1) TWI447231B (en)
UA (1) UA91662C2 (en)
WO (1) WO2008139893A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392087B (en) * 2011-11-23 2012-09-05 崔涛 Novel spherical MgO-CaO metallurgy accessory for blast furnace
WO2018170767A1 (en) * 2017-03-22 2018-09-27 首钢总公司 Ore pellet, preparation method therefor, and preparation equipment
CN109355448B (en) * 2018-11-13 2020-09-25 包头钢铁（集团）有限责任公司 Smelting process for large blast furnace with high-proportion low-silicon high-magnesium fluorine-containing fluxing pellets
JP7596194B2 (en) * 2021-03-26 2024-12-09 株式会社神戸製鋼所 Pig iron production method
JP7689856B2 (en) * 2021-04-01 2025-06-09 株式会社神戸製鋼所 How iron ore pellets are made
JP2024033885A (en) * 2022-08-31 2024-03-13 株式会社神戸製鋼所 Pig iron manufacturing method
JP2024047288A (en) 2022-09-26 2024-04-05 株式会社神戸製鋼所 Manufacturing method of iron ore pellets and iron ore pellets
JP2024064028A (en) 2022-10-27 2024-05-14 株式会社神戸製鋼所 Method for determining high-temperature properties of iron ore pellets, method for manufacturing iron ore pellets, and iron ore pellets

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136936A (en) * 1987-11-20 1989-05-30 Kobe Steel Ltd Manufacture of self-fluxing pellet for charging to blast furnace
AU594003B2 (en) * 1987-11-20 1990-02-22 Kabushiki Kaisha Kobe Seiko Sho Self-fluxing pellets to be charged into blast furnace, and method for producing same
JPH11335746A (en) * 1998-05-27 1999-12-07 Daido Steel Co Ltd Pellet supply device

Also Published As

Publication number Publication date
BRPI0810521A2 (en) 2014-10-21
WO2008139893A1 (en) 2008-11-20
TWI447231B (en) 2014-08-01
TW200925289A (en) 2009-06-16
CN101688254B (en) 2015-07-15
CN101688254A (en) 2010-03-31
BRPI0810521B1 (en) 2019-04-24
RU2455371C2 (en) 2012-07-10
JP4630304B2 (en) 2011-02-09
RU2009145277A (en) 2011-06-20
JP2008280556A (en) 2008-11-20

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