JPS5443101A - Preparation of unfired conglomerated ores for pig iron manufacture - Google Patents
Preparation of unfired conglomerated ores for pig iron manufactureInfo
- 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
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
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)
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)
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 |
-
1977
- 1977-09-12 JP JP10891677A patent/JPS5443101A/en active Pending
Patent Citations (2)
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)
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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