JPS6447802A - Blast furnace operating method - Google Patents
Blast furnace operating methodInfo
- Publication number
- JPS6447802A JPS6447802A JP20535587A JP20535587A JPS6447802A JP S6447802 A JPS6447802 A JP S6447802A JP 20535587 A JP20535587 A JP 20535587A JP 20535587 A JP20535587 A JP 20535587A JP S6447802 A JPS6447802 A JP S6447802A
- Authority
- JP
- Japan
- Prior art keywords
- blast furnace
- charged
- high reactive
- furnace
- coke
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
PURPOSE:To execute blast furnace operation having excellent productivity and economical condition by mixing the specific grain size of fine granular sintered ore with high reactive coke having more than the specific value of JIS reactivity at the specific ratio and charging his in the furnace wall side of the blast furnace. CONSTITUTION:The high reactive coke having >=30% JIS reactivity is mixed with the fine granular sintered ore having <=15mm max. grain size and quantity of the fine granular sintered ore is regulated so as to come to <=50% of the total charged ore quantity. This mixing material M is charged in the furnace wall 2 side of the blast furnace 1, in which the iron ore O and the coke C are alternately charged as laminate. The charged mixing material M is descended in the furnace as processing the blast furnace operation to form fused zone S and the high reactive coke comes to descendent flow CM descending near the furnace wall and reaches to race-way and burns. Therefore, merit of the high reactive coke can be effectively used without hindering any gas and liquid permeabilities.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20535587A JPS6447802A (en) | 1987-08-18 | 1987-08-18 | Blast furnace operating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20535587A JPS6447802A (en) | 1987-08-18 | 1987-08-18 | Blast furnace operating method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447802A true JPS6447802A (en) | 1989-02-22 |
Family
ID=16505494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20535587A Pending JPS6447802A (en) | 1987-08-18 | 1987-08-18 | Blast furnace operating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447802A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015074799A (en) * | 2013-10-08 | 2015-04-20 | 新日鐵住金株式会社 | Blast furnace operation method |
JP2015074801A (en) * | 2013-10-08 | 2015-04-20 | 新日鐵住金株式会社 | Blast furnace operation method |
-
1987
- 1987-08-18 JP JP20535587A patent/JPS6447802A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015074799A (en) * | 2013-10-08 | 2015-04-20 | 新日鐵住金株式会社 | Blast furnace operation method |
JP2015074801A (en) * | 2013-10-08 | 2015-04-20 | 新日鐵住金株式会社 | Blast furnace operation method |
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