JPS5528320A - Operating method for blast furnace - Google Patents
Operating method for blast furnaceInfo
- Publication number
- JPS5528320A JPS5528320A JP9986478A JP9986478A JPS5528320A JP S5528320 A JPS5528320 A JP S5528320A JP 9986478 A JP9986478 A JP 9986478A JP 9986478 A JP9986478 A JP 9986478A JP S5528320 A JPS5528320 A JP S5528320A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- blast furnace
- thermal shock
- charged
- feed stocks
- 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
- 238000011017 operating method Methods 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000002801 charged material Substances 0.000 abstract 2
- 230000035939 shock Effects 0.000 abstract 2
- 238000000227 grinding Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
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 make the blast furnace possible to be operated under the accelerated reducing reaction and the improved productivity, by preheating the feed stocks for the blast furnace in order to charge them at hot condition. CONSTITUTION:The feed stocks for iron manufacture, like as the pellet-like ores, the sintered ores, etc., to be charged into the blast furnace, are preheated before charging. The preheating temperature is desirable to be higher than 150 deg.C and lower than 800 deg.C by reason of handling at conveying and charging. Hereby, the thermal shock to be given to the charged material in the furnace is effectively moderated, so that the powdering of charged material owing to the thermal shock, and resulting increase of draft resistance through the furnace, etc., can be prevented;in addition to this advantage, the sensible heat and latent heat of the top exhaust gas are heightened so as to be utilizable on the outside of the furnace as the effective heat source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9986478A JPS5528320A (en) | 1978-08-15 | 1978-08-15 | Operating method for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9986478A JPS5528320A (en) | 1978-08-15 | 1978-08-15 | Operating method for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5528320A true JPS5528320A (en) | 1980-02-28 |
Family
ID=14258661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9986478A Pending JPS5528320A (en) | 1978-08-15 | 1978-08-15 | Operating method for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5528320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5591484A (en) * | 1978-10-04 | 1980-07-11 | Standard Oil Co | Device for coupling pipes |
-
1978
- 1978-08-15 JP JP9986478A patent/JPS5528320A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5591484A (en) * | 1978-10-04 | 1980-07-11 | Standard Oil Co | Device for coupling pipes |
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