JPS5579836A - Manufacture of uncalcined lump ore - Google Patents

Manufacture of uncalcined lump ore

Info

Publication number
JPS5579836A
JPS5579836A JP15054178A JP15054178A JPS5579836A JP S5579836 A JPS5579836 A JP S5579836A JP 15054178 A JP15054178 A JP 15054178A JP 15054178 A JP15054178 A JP 15054178A JP S5579836 A JPS5579836 A JP S5579836A
Authority
JP
Japan
Prior art keywords
raw material
amt
manufacture
ore
sio
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
JP15054178A
Other languages
Japanese (ja)
Inventor
Satoru Sakurai
Katsuhiko Sato
Yasumasa Sawamura
Satoru Suzuki
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP15054178A priority Critical patent/JPS5579836A/en
Publication of JPS5579836A publication Critical patent/JPS5579836A/en
Pending legal-status Critical Current

Links

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To prevent softening of lump iron raw material at low temps. and deterioration thereof in reducing properties by regulating the value of CaO/SiO2 in all of raw materials, the amt. of MgO and the amt. of the slag making agent to specified values in manufacture of the lump iron raw material for a blast furnace by solidifying fine iron ore with cement.
CONSTITUTION: In manufacture of the pellets or briquettes of fine iron ore without sintering, the fine ore is solidified with cement as a binder. At this time, to the ore are added CaO raw material such as limestone or dolomite, SiO2 raw material such as beach sand, serpentine or olivine, and MgO raw material such as hydrocake, serpentine or dolomite. The value of CaO/SiO2 in the solidified pellets or the likes is regulated to 1.2W3.1, the amt. of MgO contained to 1.2W5% of all of the raw materials, and the amt. of the slag making agent to 13W43%. The pellets are not soften early in a blast furnace and are not deteriorated in reducing properties.
COPYRIGHT: (C)1980,JPO&Japio
JP15054178A 1978-12-07 1978-12-07 Manufacture of uncalcined lump ore Pending JPS5579836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15054178A JPS5579836A (en) 1978-12-07 1978-12-07 Manufacture of uncalcined lump ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15054178A JPS5579836A (en) 1978-12-07 1978-12-07 Manufacture of uncalcined lump ore

Publications (1)

Publication Number Publication Date
JPS5579836A true JPS5579836A (en) 1980-06-16

Family

ID=15499114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15054178A Pending JPS5579836A (en) 1978-12-07 1978-12-07 Manufacture of uncalcined lump ore

Country Status (1)

Country Link
JP (1) JPS5579836A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6250420A (en) * 1985-08-28 1987-03-05 Nippon Steel Corp Noncalcined briquetted ore
KR100321620B1 (en) * 1997-07-10 2002-05-13 이구택 Fabrication method non calcinable pellet using slag
CN104232886A (en) * 2014-09-19 2014-12-24 内蒙古包钢钢联股份有限公司 Raw materials for production of oxidized pellets with low reduction expansion rate and preparation method of oxidized pellets
CN106591565A (en) * 2016-11-09 2017-04-26 内蒙古包钢钢联股份有限公司 Oxidized pellet raw material and preparation method of oxidized pellets
CN110512074A (en) * 2019-09-29 2019-11-29 东北大学 A kind of method that high mixture ratio New Zealand sea sand raw ore prepares acid pellet

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6250420A (en) * 1985-08-28 1987-03-05 Nippon Steel Corp Noncalcined briquetted ore
KR100321620B1 (en) * 1997-07-10 2002-05-13 이구택 Fabrication method non calcinable pellet using slag
CN104232886A (en) * 2014-09-19 2014-12-24 内蒙古包钢钢联股份有限公司 Raw materials for production of oxidized pellets with low reduction expansion rate and preparation method of oxidized pellets
CN106591565A (en) * 2016-11-09 2017-04-26 内蒙古包钢钢联股份有限公司 Oxidized pellet raw material and preparation method of oxidized pellets
CN110512074A (en) * 2019-09-29 2019-11-29 东北大学 A kind of method that high mixture ratio New Zealand sea sand raw ore prepares acid pellet
CN110512074B (en) * 2019-09-29 2021-02-09 东北大学 Method for preparing acid pellets from high-proportion raw ore of New Zealand sea sand

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