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JPS6468413A - Method for removing slag in smelting reduction of ore - Google Patents

Method for removing slag in smelting reduction of ore

Info

Publication number
JPS6468413A
JPS6468413A JP22525487A JP22525487A JPS6468413A JP S6468413 A JPS6468413 A JP S6468413A JP 22525487 A JP22525487 A JP 22525487A JP 22525487 A JP22525487 A JP 22525487A JP S6468413 A JPS6468413 A JP S6468413A
Authority
JP
Japan
Prior art keywords
slag
blowing nozzle
smelting reduction
furnace
ore
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
JP22525487A
Other languages
Japanese (ja)
Inventor
Haruyoshi Tanabe
Masahiro Kawakami
Kenji Takahashi
Katsuhiro Iwasaki
Shigeru Inoue
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP22525487A priority Critical patent/JPS6468413A/en
Priority to BR888807201A priority patent/BR8807201A/en
Priority to AU23057/88A priority patent/AU604974B2/en
Priority to AT88907783T priority patent/ATE107706T1/en
Priority to PCT/JP1988/000910 priority patent/WO1989002478A1/en
Priority to US07/362,418 priority patent/US4944799A/en
Priority to EP88907783A priority patent/EP0355163B1/en
Priority to DE3850394T priority patent/DE3850394T2/en
Priority to ZA89152A priority patent/ZA89152B/en
Publication of JPS6468413A publication Critical patent/JPS6468413A/en
Priority to ZA892950A priority patent/ZA892950B/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To easily remove slag and to continuously execute decarbonizing treatment by tilting a furnace body so that side blowing nozzle comes to downward at the time of completing smelting reduction and removing the slag while blowing gas from the side blowing nozzle. CONSTITUTION:By using a converter type vessel arranging side blowing nozzle 2 at position lower than the middle point to height direction and bottom blowing nozzle at the furnace bottom, the smelting reduction of ore is executed. When the smelting reduction completes, by tilting the furnace body 1 and also blowing inert gas (N2, etc.) from the side blowing nozzle 2, the slag B is removed. By this method, slag level at the furnace bottom side comes to high and only slag B can be smoothly and suitably removed from the furnace top opening part, and successively, the decarbonizing treatment is executed.
JP22525487A 1987-09-10 1987-09-10 Method for removing slag in smelting reduction of ore Pending JPS6468413A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP22525487A JPS6468413A (en) 1987-09-10 1987-09-10 Method for removing slag in smelting reduction of ore
US07/362,418 US4944799A (en) 1987-09-10 1988-09-09 Method of producing stainless molten steel by smelting reduction
AU23057/88A AU604974B2 (en) 1987-09-10 1988-09-09 Process for producing molten stainless steel
AT88907783T ATE107706T1 (en) 1987-09-10 1988-09-09 METHOD OF MAKING MOLTEN STAINLESS STEEL.
PCT/JP1988/000910 WO1989002478A1 (en) 1987-09-10 1988-09-09 Process for producing molten stainless steel
BR888807201A BR8807201A (en) 1987-09-10 1988-09-09 METHOD OF PRODUCTION OF STAINLESS STEEL IN REDUCING FUSION FUSION
EP88907783A EP0355163B1 (en) 1987-09-10 1988-09-09 Process for producing molten stainless steel
DE3850394T DE3850394T2 (en) 1987-09-10 1988-09-09 METHOD FOR PRODUCING MELTED STAINLESS STEEL.
ZA89152A ZA89152B (en) 1987-09-10 1989-01-09 A method of charging chromium ores in a smelting reduction
ZA892950A ZA892950B (en) 1987-09-10 1989-04-21 A method of producing stainless molten steel by smelting reduction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22525487A JPS6468413A (en) 1987-09-10 1987-09-10 Method for removing slag in smelting reduction of ore

Publications (1)

Publication Number Publication Date
JPS6468413A true JPS6468413A (en) 1989-03-14

Family

ID=16826427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22525487A Pending JPS6468413A (en) 1987-09-10 1987-09-10 Method for removing slag in smelting reduction of ore

Country Status (1)

Country Link
JP (1) JPS6468413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732665A (en) * 2012-03-29 2012-10-17 鞍钢股份有限公司 Method for increasing nitrogen in molten steel in last stage of converter smelting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732665A (en) * 2012-03-29 2012-10-17 鞍钢股份有限公司 Method for increasing nitrogen in molten steel in last stage of converter smelting

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