JPS5579836A - Manufacture of uncalcined lump ore - Google Patents
Manufacture of uncalcined lump oreInfo
- 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
Links
Landscapes
- 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
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)
| 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 |
-
1978
- 1978-12-07 JP JP15054178A patent/JPS5579836A/en active Pending
Cited By (6)
| 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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