GB700508A - Improvements in the operation of blast furnaces, particularly for the purpose of reducing the ore softening zone - Google Patents
Improvements in the operation of blast furnaces, particularly for the purpose of reducing the ore softening zoneInfo
- Publication number
- GB700508A GB700508A GB2271350A GB2271350A GB700508A GB 700508 A GB700508 A GB 700508A GB 2271350 A GB2271350 A GB 2271350A GB 2271350 A GB2271350 A GB 2271350A GB 700508 A GB700508 A GB 700508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bosh
- tuyeres
- well
- zone
- temperature
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
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
700,508. Blast furnace processes. BESCH P. N. Sep. 15, 1950, No. 22713/50. Class 72 [Also in Group XII] The operation of blast furnaces is improved by insufflating, at the periphery and below the belly of the furnace, a fluid capable of reacting endothermically with the coke at a point where the ascending gas temperature is between 1520‹C. and 1580‹C. to form an endothermic peripheral screen so that the zone in which the materials become plastic is removed from the walls and an annular zone of a temperature below that at which the charge becomes plastic is formed,. The fluid may be carbon dioxide, limekiln gas, burnt gas from furnaces, water, water vapour, or steam. The insufflation tuyeres may be arranged in the bosh, but it is preferred to increase the height of the well and arrange the tuyeres below the small diameter of the bosh. As shown, the well g2 has at its upper end an inwardly sloping truncated portion h leading to a collar i of smaller diameter than the well and forming the lower end of the bosh, and the insufflating tuyeres are arranged in the planes b, c, d, e below the truncated portion. The plastic zone is shown at 1e. The temperature of the charge emerging from the peripheral thermal screen should be between 1000‹C. and 1050‹C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2271350A GB700508A (en) | 1950-09-15 | 1950-09-15 | Improvements in the operation of blast furnaces, particularly for the purpose of reducing the ore softening zone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2271350A GB700508A (en) | 1950-09-15 | 1950-09-15 | Improvements in the operation of blast furnaces, particularly for the purpose of reducing the ore softening zone |
Publications (1)
Publication Number | Publication Date |
---|---|
GB700508A true GB700508A (en) | 1953-12-02 |
Family
ID=10183905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2271350A Expired GB700508A (en) | 1950-09-15 | 1950-09-15 | Improvements in the operation of blast furnaces, particularly for the purpose of reducing the ore softening zone |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB700508A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2795497A (en) * | 1953-04-23 | 1957-06-11 | Hans I Elvander | Method and apparatus for producing molten iron |
-
1950
- 1950-09-15 GB GB2271350A patent/GB700508A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2795497A (en) * | 1953-04-23 | 1957-06-11 | Hans I Elvander | Method and apparatus for producing molten iron |
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