BE757982A - Operating blast furnaces by double inject- - ion methods - Google Patents
Operating blast furnaces by double inject- - ion methodsInfo
- Publication number
- BE757982A BE757982A BE757982DA BE757982A BE 757982 A BE757982 A BE 757982A BE 757982D A BE757982D A BE 757982DA BE 757982 A BE757982 A BE 757982A
- Authority
- BE
- Belgium
- Prior art keywords
- reducing gas
- blast furnaces
- injection
- operating blast
- degrees
- Prior art date
Links
- 238000002347 injection Methods 0.000 title abstract 4
- 239000007924 injection Substances 0.000 title abstract 4
- 229940090044 injection Drugs 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000000463 material Substances 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
- C21B5/001—Injecting additional fuel or reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
Fluid hydrocarbons are injected in the plane of the main tuyeres and reducing gas in the upper zone of the furnace. The lower injection is made via at least one oxy fuel burner so as to give a combustion temp. of at least 1600 degrees C and pref. at least 1800 degrees C, eventually without air blast. The reducing gas injection principally CO and H2 takes place about the lower part of the reserve zone, the reducing gas temp. being equal to or slightly greater than that of the materials in the injection area.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE757982 | 1970-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE757982A true BE757982A (en) | 1971-04-23 |
Family
ID=3857194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE757982D BE757982A (en) | 1970-10-23 | Operating blast furnaces by double inject- - ion methods |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE757982A (en) |
-
0
- BE BE757982D patent/BE757982A/en unknown
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