JPS56119715A - Method for closing iron notch - Google Patents
Method for closing iron notchInfo
- Publication number
- JPS56119715A JPS56119715A JP2281280A JP2281280A JPS56119715A JP S56119715 A JPS56119715 A JP S56119715A JP 2281280 A JP2281280 A JP 2281280A JP 2281280 A JP2281280 A JP 2281280A JP S56119715 A JPS56119715 A JP S56119715A
- Authority
- JP
- Japan
- Prior art keywords
- mud
- iron notch
- furnace
- amorphous refractories
- refractories
- 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.)
- Pending
Links
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
PURPOSE: To close an iron notch at a low cost by charging inexpensive ordinary amorphous refractories into the iron notch after tapping of a blast furnace, then charging a required amount of high-quality amorphous refractories into the iron notch.
CONSTITUTION: In the 1st stage, water clay 7 of inexpensive ordinary amorphous refractories is charged into the iron notch of a blast furnace by using a mud gun 5, then mud 6 of costly high-quality amorphous refractories is charged therein. As a result, the water clay 7 is pushed to the coke packed layer of the hearth part to provide a retainer for the inner side of the furnace and this enables the sufficient packing pressure of the mud 6 to be assured. Namely, the amount of using the mud 6 is reduced to about 1/2W1/4 that in the conventional technique by replacing part of the costly mud 6 having hitherto been used with ordinary amorphous refractories. Here, 1 in the figure denotes the shell of the furnace bottom, 2 the base plate and 3 the refractories in the furnace, respectively.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2281280A JPS56119715A (en) | 1980-02-27 | 1980-02-27 | Method for closing iron notch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2281280A JPS56119715A (en) | 1980-02-27 | 1980-02-27 | Method for closing iron notch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56119715A true JPS56119715A (en) | 1981-09-19 |
Family
ID=12093098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2281280A Pending JPS56119715A (en) | 1980-02-27 | 1980-02-27 | Method for closing iron notch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56119715A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740475A1 (en) * | 1995-10-27 | 1997-04-30 | Boulonnais Terres Refractaires | Treating, conditioning and blocking the tap hole of a thermal or metallurgical reactor |
-
1980
- 1980-02-27 JP JP2281280A patent/JPS56119715A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740475A1 (en) * | 1995-10-27 | 1997-04-30 | Boulonnais Terres Refractaires | Treating, conditioning and blocking the tap hole of a thermal or metallurgical reactor |
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