JPS5565328A - Iron ore powder pelletizing method - Google Patents
Iron ore powder pelletizing methodInfo
- Publication number
- JPS5565328A JPS5565328A JP13576678A JP13576678A JPS5565328A JP S5565328 A JPS5565328 A JP S5565328A JP 13576678 A JP13576678 A JP 13576678A JP 13576678 A JP13576678 A JP 13576678A JP S5565328 A JPS5565328 A JP S5565328A
- Authority
- JP
- Japan
- Prior art keywords
- iron ore
- ore
- gypsum
- blast furnace
- usable
- 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
Links
Abstract
PURPOSE: To manufacture peilets having superior hot strength and usable in a blast furnace without requiring roasting by mixing fine iron ore with gypsum-free cement clinker poweder and Ca(NO2)2 as a binder.
CONSTITUTION: Fine iron ore is further pulverized so that about 20% of the ore is left on a 40μ screen. 100 parts of this pulverized ore are mixed with about 10 parts of fine powder of gypsum-free Portland cement clinker, and to this mixt. is added Ca(NO2)2 in an amt. corresponding to 2W6% of the clinker powder together with an adequate amt. of water. They are well kneaded, pelletized, and naturally cured for about 1 day, thus simply manufacturing iron ore pellets having superior water resistance in storage and high cold and hot strength, and well usable in a blast furnace.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13576678A JPS5565328A (en) | 1978-11-06 | 1978-11-06 | Iron ore powder pelletizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13576678A JPS5565328A (en) | 1978-11-06 | 1978-11-06 | Iron ore powder pelletizing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5565328A true JPS5565328A (en) | 1980-05-16 |
| JPS5643372B2 JPS5643372B2 (en) | 1981-10-12 |
Family
ID=15159355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13576678A Granted JPS5565328A (en) | 1978-11-06 | 1978-11-06 | Iron ore powder pelletizing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5565328A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747217A (en) * | 2012-06-14 | 2012-10-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Grading technology for cold-pressed pelletizing and shaft furnace magnetization roasting of powdery refractory iron oxide ore |
| CN102747221A (en) * | 2012-06-14 | 2012-10-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for making cold-pressed balls through using powdery material containing iron |
-
1978
- 1978-11-06 JP JP13576678A patent/JPS5565328A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747217A (en) * | 2012-06-14 | 2012-10-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Grading technology for cold-pressed pelletizing and shaft furnace magnetization roasting of powdery refractory iron oxide ore |
| CN102747221A (en) * | 2012-06-14 | 2012-10-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for making cold-pressed balls through using powdery material containing iron |
| CN102747217B (en) * | 2012-06-14 | 2016-06-08 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Powdery difficulty selects iron oxide ore cold-pressing balls agglomeration, shaft furnace magnetizing roasting sorting process |
| CN102747221B (en) * | 2012-06-14 | 2016-10-05 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Make the method for cold-pressing balls of iron content granular material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5643372B2 (en) | 1981-10-12 |
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