JPS55158240A - Gas blowing nozzle exchanging method - Google Patents
Gas blowing nozzle exchanging methodInfo
- Publication number
- JPS55158240A JPS55158240A JP6422479A JP6422479A JPS55158240A JP S55158240 A JPS55158240 A JP S55158240A JP 6422479 A JP6422479 A JP 6422479A JP 6422479 A JP6422479 A JP 6422479A JP S55158240 A JPS55158240 A JP S55158240A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- hole
- refractory
- pulled
- tube
- 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.)
- Granted
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
PURPOSE: To perform nozzle exchange without stopping operation of a furnace by pulling a damaged double-tube nozzle; boring a hole larger than the nozzle in outside diameter along the hole of the pulled nozzle; and pressure-feeding a refractory material between a new nozzle inserted and the inside of the hole.
CONSTITUTION: When refractory material 2 surrounding double-tube nozzle 3 for blowing is worn out to form funnelform recess 9 in a refining furnace, nozzle 3 is pulled out to be exchanged. A hole whose inside diameter is 10W80mm larger than the diameter of nozzle 3 is bored along the hole of the pulled nozzle in material 2. The tip opening of new nozzle 3 is shut with lid 12, and flower-form refractory plate 11 is attached to the center of nozzle 3. Nozzle 3 is then set at the center of the bored hold so that plate 11 reaches the undamaged level of material 2. Refractory material 10 such as refractory mortar is pressure-fed into the gap between outer tube 4 of nozzle 3 and material 2 from the iron shell 1 side, and recess 9 is filled with a baking agent to finish nozzle exchange attachment.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6422479A JPS5952216B2 (en) | 1979-05-24 | 1979-05-24 | How to replace the gas blowing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6422479A JPS5952216B2 (en) | 1979-05-24 | 1979-05-24 | How to replace the gas blowing nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55158240A true JPS55158240A (en) | 1980-12-09 |
| JPS5952216B2 JPS5952216B2 (en) | 1984-12-18 |
Family
ID=13251910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6422479A Expired JPS5952216B2 (en) | 1979-05-24 | 1979-05-24 | How to replace the gas blowing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5952216B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171615A (en) * | 1981-04-14 | 1982-10-22 | Kawasaki Steel Corp | Refining method for bottom of converter having bottom blowing tuyere |
| KR100349870B1 (en) * | 1995-05-25 | 2003-01-06 | 니뽄 쮸단고우 가부시키가이샤 | Gas injection nozzle for molten metal and method of use thereof |
-
1979
- 1979-05-24 JP JP6422479A patent/JPS5952216B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171615A (en) * | 1981-04-14 | 1982-10-22 | Kawasaki Steel Corp | Refining method for bottom of converter having bottom blowing tuyere |
| KR100349870B1 (en) * | 1995-05-25 | 2003-01-06 | 니뽄 쮸단고우 가부시키가이샤 | Gas injection nozzle for molten metal and method of use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5952216B2 (en) | 1984-12-18 |
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