GB793655A - Improvements in steel manufacture - Google Patents
Improvements in steel manufactureInfo
- Publication number
- GB793655A GB793655A GB3619355A GB3619355A GB793655A GB 793655 A GB793655 A GB 793655A GB 3619355 A GB3619355 A GB 3619355A GB 3619355 A GB3619355 A GB 3619355A GB 793655 A GB793655 A GB 793655A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- bath
- per cent
- nozzle
- furnace
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/22—Arrangements of air or gas supply devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
In the refining of steel in open hearth furnaces by directing a stream of oxygen on to the molten charge, as disclosed for instance in Specification 758,529, the nozzle of the water-cooled oxygen gun used to inject the oxygen on to the bath is directed at an angle to the vertical and is disposed parallel to the vertical plane through the longitudinal axis of the furnace. By this means the pressure of the oxygen and therefore the delivery rate may be considerably increased without damage to the furnace structure by splashing. With the nozzle bent at 25 degrees to the vertical and disposed 5 inches above the bath, slag thrown up from the bath clears the nozzle. With a 225 ton furnace, and starting with a carbon content of 0.35 per cent, use of the above technique enables an average decarbonization rate of 0.42 per cent C per hour to be attained, as against 0.14 per cent C per hour with no oxygen, and 0.35 per cent C per hour delivering the oxygen vertically on to the bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3619355A GB793655A (en) | 1955-12-16 | 1955-12-16 | Improvements in steel manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3619355A GB793655A (en) | 1955-12-16 | 1955-12-16 | Improvements in steel manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB793655A true GB793655A (en) | 1958-04-23 |
Family
ID=10385817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3619355A Expired GB793655A (en) | 1955-12-16 | 1955-12-16 | Improvements in steel manufacture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB793655A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3013788A (en) * | 1960-02-08 | 1961-12-19 | Henry J Kaiser Company | Metallurgy |
| US3082997A (en) * | 1960-05-03 | 1963-03-26 | Air Prod & Chem | Fluid transfer device |
-
1955
- 1955-12-16 GB GB3619355A patent/GB793655A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3013788A (en) * | 1960-02-08 | 1961-12-19 | Henry J Kaiser Company | Metallurgy |
| US3082997A (en) * | 1960-05-03 | 1963-03-26 | Air Prod & Chem | Fluid transfer device |
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