JPS5644705A - Direct reducing method of ore in converter - Google Patents
Direct reducing method of ore in converterInfo
- Publication number
- JPS5644705A JPS5644705A JP12100279A JP12100279A JPS5644705A JP S5644705 A JPS5644705 A JP S5644705A JP 12100279 A JP12100279 A JP 12100279A JP 12100279 A JP12100279 A JP 12100279A JP S5644705 A JPS5644705 A JP S5644705A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- iron ore
- steel
- oxygen
- blowing
- 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
Landscapes
- Manufacture Of Iron (AREA)
Abstract
PURPOSE: To produce steel directly from iron ore within a converter by adding and blowing iron ore, reducing carbon material and oxygen gas at the specific ratios during steel making refining process with the converter.
CONSTITUTION: Iron ore, coal, coke or charcoal as a reducing agent are added at fixed ratios after the time when decarbonization reaction progresses forward and backward and leaves an oversaturated state of [C] on progression of desiliconization reaction and rising of the temperature of the steel bath after the start of the steel making refining through oxygen blowing in a converter. These raw materials are added in the state of mixed pellets, or separately from the furnace top or by making use of a sublance and furnace bottom fuyeres. In proportion to the rate of the addition of these raw materials, the blowing by pure oxygen is performed to reduce Fe2O3 in the iron one into steel. The addition amounts of this case are made 0.3W 1.5t of coal based on 1t of the iron ore, 0.2W1.0t in the case of charcoal and 10W 600Nm3 of oxygen.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12100279A JPS5644705A (en) | 1979-09-20 | 1979-09-20 | Direct reducing method of ore in converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12100279A JPS5644705A (en) | 1979-09-20 | 1979-09-20 | Direct reducing method of ore in converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5644705A true JPS5644705A (en) | 1981-04-24 |
| JPS6132366B2 JPS6132366B2 (en) | 1986-07-26 |
Family
ID=14800343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12100279A Granted JPS5644705A (en) | 1979-09-20 | 1979-09-20 | Direct reducing method of ore in converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5644705A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136709A (en) * | 1981-10-30 | 1983-08-13 | ブリティッシュ、スティール、パブリック、リミテッド、カンパニー | Steel manufacture |
| JPS62167811A (en) * | 1986-01-20 | 1987-07-24 | Nippon Kokan Kk <Nkk> | Melt reduction steel making method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522821A (en) * | 1975-06-25 | 1977-01-10 | Nippon Steel Corp | Converter steel making process |
-
1979
- 1979-09-20 JP JP12100279A patent/JPS5644705A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522821A (en) * | 1975-06-25 | 1977-01-10 | Nippon Steel Corp | Converter steel making process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136709A (en) * | 1981-10-30 | 1983-08-13 | ブリティッシュ、スティール、パブリック、リミテッド、カンパニー | Steel manufacture |
| JPS62167811A (en) * | 1986-01-20 | 1987-07-24 | Nippon Kokan Kk <Nkk> | Melt reduction steel making method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6132366B2 (en) | 1986-07-26 |
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