GB691923A - Improvements relating to the operation of blast furnaces - Google Patents
Improvements relating to the operation of blast furnacesInfo
- Publication number
- GB691923A GB691923A GB1351750A GB1351750A GB691923A GB 691923 A GB691923 A GB 691923A GB 1351750 A GB1351750 A GB 1351750A GB 1351750 A GB1351750 A GB 1351750A GB 691923 A GB691923 A GB 691923A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blast
- temperature
- instrument
- slag
- cold air
- 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
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
691,923. Reduction of iron ores. UNITED STEEL COS., Ltd. Aug. 30, 1951 [May 30, 1950], No. 13517/50. Class 72 In a method of controlling the silicon content of iron produced in a blast furnace, the blast is controlled in accordance with the indications given by an instrument responsive to the temperature either of the slag or of the furnace hearth. As shown, an indicating controller 11, which may be electric or pneumatic, operated by a pyrometer 8 in the slag or in the hearth, controls a valve 9 in a cold air line 26 to pass more or less cold air and so adjust the temperature of the hot air blast in line 24. In a modification, Fig. 3 (not shown); a second instrument responsive to the blast temperature opposes. the first instrument and prevents the blast temperature from being decreased, or increased, to too great an extent. Steam may be added to the blast under the control of a third instrument. Instead of automatic operation the valves may be manually operated according to the indicated temperatures on the instruments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1351750A GB691923A (en) | 1950-05-30 | 1950-05-30 | Improvements relating to the operation of blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1351750A GB691923A (en) | 1950-05-30 | 1950-05-30 | Improvements relating to the operation of blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB691923A true GB691923A (en) | 1953-05-27 |
Family
ID=10024413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1351750A Expired GB691923A (en) | 1950-05-30 | 1950-05-30 | Improvements relating to the operation of blast furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB691923A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2822257A (en) * | 1955-06-21 | 1958-02-04 | United States Steel Corp | Method and apparatus for controlling blast furnaces |
| US3002738A (en) * | 1958-10-03 | 1961-10-03 | Koppers Co Inc | Direct heating of blast furnace air blast |
-
1950
- 1950-05-30 GB GB1351750A patent/GB691923A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2822257A (en) * | 1955-06-21 | 1958-02-04 | United States Steel Corp | Method and apparatus for controlling blast furnaces |
| US3002738A (en) * | 1958-10-03 | 1961-10-03 | Koppers Co Inc | Direct heating of blast furnace air blast |
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