JPS5443101A - Preparation of unfired conglomerated ores for pig iron manufacture - Google Patents

Preparation of unfired conglomerated ores for pig iron manufacture

Info

Publication number
JPS5443101A
JPS5443101A JP10891677A JP10891677A JPS5443101A JP S5443101 A JPS5443101 A JP S5443101A JP 10891677 A JP10891677 A JP 10891677A JP 10891677 A JP10891677 A JP 10891677A JP S5443101 A JPS5443101 A JP S5443101A
Authority
JP
Japan
Prior art keywords
ores
conglomerated
unfired
iron
strength
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
JP10891677A
Other languages
Japanese (ja)
Inventor
Hideyuki Yoshikoshi
Deeya.Aahimu
Kunihiro Kondo
Hiroshi Fukuyo
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 JP10891677A priority Critical patent/JPS5443101A/en
Publication of JPS5443101A publication Critical patent/JPS5443101A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make the strength of the unfired conglomerated ores manifest in a short period of time, by adding the pulverized granulated slag of blast furnace or converter as the binding agent to the powdery iron ores, etc., kneading the obtained mixture and performing specified steam treatment and drying treatment at high temperature.
CONSTITUTION: To the powdered iron ores or the powdery iron-containing raw material, the finely pulverized granulated slag of balst furnace or converter of 5W15wt% and, according to demand, other adding agents are added and mixed. By adding water of 0.5W10% to this mixture and kneeding, the miture is conglomerated to briquets, etc. The obtained briquets, etc. are cured for 1W5hr in the steam of 100W500°C and, further, the drying treatment is performed for 1W5hr at 100W500°C. With this method, the unifired conglomerated ores for iron manufacture having a sufficient strength can be obtained simply in a short period of time. These unfired ores do not suffer an extreme lowering of strength even when those are exposed to the reducing atmosphere, and can endure sufficiently the charging to the blast furnace.
COPYRIGHT: (C)1979,JPO&Japio
JP10891677A 1977-09-12 1977-09-12 Preparation of unfired conglomerated ores for pig iron manufacture Pending JPS5443101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10891677A JPS5443101A (en) 1977-09-12 1977-09-12 Preparation of unfired conglomerated ores for pig iron manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10891677A JPS5443101A (en) 1977-09-12 1977-09-12 Preparation of unfired conglomerated ores for pig iron manufacture

Publications (1)

Publication Number Publication Date
JPS5443101A true JPS5443101A (en) 1979-04-05

Family

ID=14496888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10891677A Pending JPS5443101A (en) 1977-09-12 1977-09-12 Preparation of unfired conglomerated ores for pig iron manufacture

Country Status (1)

Country Link
JP (1) JPS5443101A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272303A (en) * 1991-04-02 1993-12-21 Kawasumi Laboratories, Inc. Welding device with movable and immovable electrodes for welding tubes
KR100321620B1 (en) * 1997-07-10 2002-05-13 이구택 Fabrication method non calcinable pellet using slag

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51931A (en) * 1974-06-20 1976-01-07 Tokyo Shibaura Electric Co ROKUONBAIASUKYOKYUKAIRO
JPS515962A (en) * 1974-07-04 1976-01-19 Tokyo Shibaura Electric Co

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51931A (en) * 1974-06-20 1976-01-07 Tokyo Shibaura Electric Co ROKUONBAIASUKYOKYUKAIRO
JPS515962A (en) * 1974-07-04 1976-01-19 Tokyo Shibaura Electric Co

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272303A (en) * 1991-04-02 1993-12-21 Kawasumi Laboratories, Inc. Welding device with movable and immovable electrodes for welding tubes
KR100321620B1 (en) * 1997-07-10 2002-05-13 이구택 Fabrication method non calcinable pellet using slag

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