JPS6431909A - Method for charging raw material in blast furnace - Google Patents
Method for charging raw material in blast furnaceInfo
- Publication number
- JPS6431909A JPS6431909A JP18730487A JP18730487A JPS6431909A JP S6431909 A JPS6431909 A JP S6431909A JP 18730487 A JP18730487 A JP 18730487A JP 18730487 A JP18730487 A JP 18730487A JP S6431909 A JPS6431909 A JP S6431909A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- furnace
- fine granular
- granular raw
- blast furnace
- 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 Of Iron (AREA)
Abstract
PURPOSE:To restrain flowing of fine granular raw material into the center part in a furnace and to stabilize the operation of the blast furnace by charging the raw material having near globular shape preceded charge of the fine granular raw material at the time of charging in the blast furnace as dividing coarse granular raw material and the fine granular raw material. CONSTITUTION:At the time of charging the raw material into the blast furnace as dividing the coarse grain and the fine grain, the raw material having near globular shape or mixing material of the coarse granular raw material and the raw material having near globular shape are charged, preceded charge of the fine granular raw material. Then, pellet or molded coke in which the shape factor phi=So/S, is >=0.8 (So shows surface area of a sphere having the same volume as the volume of the raw material grain and S shows the surface area of the raw material grain), is used as the raw material having near globular shape. Therefore, inclined angle on the sloping surface in the furnace is made to small and flowing of the fine granular raw material successively charged into the center part in the furnace is restrained and the fine granular raw material is locally and accurately piled near the furnace wall in the furnace.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18730487A JPS6431909A (en) | 1987-07-27 | 1987-07-27 | Method for charging raw material in blast furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18730487A JPS6431909A (en) | 1987-07-27 | 1987-07-27 | Method for charging raw material in blast furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431909A true JPS6431909A (en) | 1989-02-02 |
Family
ID=16203657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18730487A Pending JPS6431909A (en) | 1987-07-27 | 1987-07-27 | Method for charging raw material in blast furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431909A (en) |
-
1987
- 1987-07-27 JP JP18730487A patent/JPS6431909A/en active Pending
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