JPS54136505A - Repairing method for annular blast pipe of blast furnace - Google Patents
Repairing method for annular blast pipe of blast furnaceInfo
- Publication number
- JPS54136505A JPS54136505A JP4503578A JP4503578A JPS54136505A JP S54136505 A JPS54136505 A JP S54136505A JP 4503578 A JP4503578 A JP 4503578A JP 4503578 A JP4503578 A JP 4503578A JP S54136505 A JPS54136505 A JP S54136505A
- Authority
- JP
- Japan
- Prior art keywords
- irregular
- fire
- iron shell
- resistant
- resistant material
- 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
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
PURPOSE: To prevent iron shell at irregular side blasting zone from bursting, by arranging fire- resistant material at positions, where iron shell and irregular-shaped fire-resistant material are removed from, the positions facing each other with the irregular side blasting zone between them, and by pouring mortar into the clearance between irregular-shaped fire-resistant material and fire- resistant, heat-insulating bricks at the irregular side blasting zone.
CONSTITUTION: The annular blast pipe 1 of a blast furnace is constituted of irregular-shaped fire- resistant material 3, a clearance 4, fire-resistant, heat-insulating bricks 5, fire bricks 6 arranged inside of iron shell 2. Irregular side blast passes as shown by arrows 7 through the crack in the firebricks 6, joint of the fire-resistant, heat-insulating bricks 5, and the clearance 4, so that the irregular side blasting zone is easily detected because the iron shell at the place is heated to high temp. The iron shell 2 and the irregular-shaped fire-resistant material 3 on both sides of the irregular side blasting zone are removed, and new fire-resistant materials 8 are set at the places, and are covered with iron shells 2'. Then an opening 9 is made in the iron shell 2 and in the irregular-shaped fire-resistant material 3, and the clearance 4 is plugged with mortar to prevent irregular side blast from blowing through. Hereby, burst of iron shell due to increase in heat load on the iron shell caused by irregular side blast is prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4503578A JPS54136505A (en) | 1978-04-17 | 1978-04-17 | Repairing method for annular blast pipe of blast furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4503578A JPS54136505A (en) | 1978-04-17 | 1978-04-17 | Repairing method for annular blast pipe of blast furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54136505A true JPS54136505A (en) | 1979-10-23 |
JPS5736321B2 JPS5736321B2 (en) | 1982-08-03 |
Family
ID=12708081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4503578A Granted JPS54136505A (en) | 1978-04-17 | 1978-04-17 | Repairing method for annular blast pipe of blast furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54136505A (en) |
-
1978
- 1978-04-17 JP JP4503578A patent/JPS54136505A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5736321B2 (en) | 1982-08-03 |
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