JPS56123332A - Calcining method for iron ore pellet - Google Patents

Calcining method for iron ore pellet

Info

Publication number
JPS56123332A
JPS56123332A JP2549680A JP2549680A JPS56123332A JP S56123332 A JPS56123332 A JP S56123332A JP 2549680 A JP2549680 A JP 2549680A JP 2549680 A JP2549680 A JP 2549680A JP S56123332 A JPS56123332 A JP S56123332A
Authority
JP
Japan
Prior art keywords
pellets
hot gas
section
coke
oxygen concn
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.)
Granted
Application number
JP2549680A
Other languages
Japanese (ja)
Other versions
JPS648053B2 (en
Inventor
Kiichi Narita
Dentaro Kaneko
Masahiro Maekawa
Hiroshi Kanayama
Yoshio 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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP2549680A priority Critical patent/JPS56123332A/en
Publication of JPS56123332A publication Critical patent/JPS56123332A/en
Publication of JPS648053B2 publication Critical patent/JPS648053B2/ja
Granted legal-status Critical Current

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To reduce the pellet calcining cost by introducing a hot gas of low oxygen concn. from an upper part of a heating section to heat raw pellets contg. a specified amount of coke to a temp. where the pellets are not burned.
CONSTITUTION: Raw pellets M contg. 1W10% coke besides iron ores are prepared. Pellets M are carried to drying section 21 with grate 20 and dried by introducing a hot gas upward from the bottom of grate 20. Dried pellets M are then heated to ≥ about 800°C with a hot gas in heating section 22. At this time, the gas is desired to be slightly short in oxygen not to ignite pellets M, and low oxygen auxiliary fuel G is introduced from an upper part to restrict the oxygen concn. to <10%. Heated pellets M enter calcining section 23, where the coke ignites by feeding a hot gas and raising the oxygen concn., and pellets M are calcined at about 1,200W1,350°C. Fired pellets M are successively cooled in primary cooling section 24 and secondary cooling section 25 and taken out as product pellets P.
COPYRIGHT: (C)1981,JPO&Japio
JP2549680A 1980-03-01 1980-03-01 Calcining method for iron ore pellet Granted JPS56123332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2549680A JPS56123332A (en) 1980-03-01 1980-03-01 Calcining method for iron ore pellet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2549680A JPS56123332A (en) 1980-03-01 1980-03-01 Calcining method for iron ore pellet

Publications (2)

Publication Number Publication Date
JPS56123332A true JPS56123332A (en) 1981-09-28
JPS648053B2 JPS648053B2 (en) 1989-02-13

Family

ID=12167664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2549680A Granted JPS56123332A (en) 1980-03-01 1980-03-01 Calcining method for iron ore pellet

Country Status (1)

Country Link
JP (1) JPS56123332A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107035A (en) * 1982-12-09 1984-06-21 Sumitomo Heavy Ind Ltd Manufacture of metallic oxide pellet
JPS60245732A (en) * 1984-05-18 1985-12-05 メタル　ゲゼルシャフト　アクチェン　ゲゼルシャフト Method of dead burning iron ore pellet on moving grate
WO2010007849A1 (en) * 2008-07-16 2010-01-21 株式会社神戸製鋼所 Method for producing iron ore pellets
JP2010163656A (en) * 2009-01-15 2010-07-29 Kobe Steel Ltd Method for producing iron-ore pellet
JP2011127175A (en) * 2009-12-17 2011-06-30 Kobe Steel Ltd Method for manufacturing iron ore pellet
WO2024070135A1 (en) * 2022-09-28 2024-04-04 Ｊｆｅスチール株式会社 Iron ore pellet production method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107035A (en) * 1982-12-09 1984-06-21 Sumitomo Heavy Ind Ltd Manufacture of metallic oxide pellet
JPS60245732A (en) * 1984-05-18 1985-12-05 メタル　ゲゼルシャフト　アクチェン　ゲゼルシャフト Method of dead burning iron ore pellet on moving grate
WO2010007849A1 (en) * 2008-07-16 2010-01-21 株式会社神戸製鋼所 Method for producing iron ore pellets
TWI396750B (en) * 2008-07-16 2013-05-21 Kobe Steel Ltd Method for manufacturing iron ore pellet
JP2010163656A (en) * 2009-01-15 2010-07-29 Kobe Steel Ltd Method for producing iron-ore pellet
JP2011127175A (en) * 2009-12-17 2011-06-30 Kobe Steel Ltd Method for manufacturing iron ore pellet
WO2024070135A1 (en) * 2022-09-28 2024-04-04 Ｊｆｅスチール株式会社 Iron ore pellet production method

Also Published As

Publication number Publication date
JPS648053B2 (en) 1989-02-13

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