JPS5585609A - Boring method for tap hole of blast furnace - Google Patents
Boring method for tap hole of blast furnaceInfo
- Publication number
- JPS5585609A JPS5585609A JP15796978A JP15796978A JPS5585609A JP S5585609 A JPS5585609 A JP S5585609A JP 15796978 A JP15796978 A JP 15796978A JP 15796978 A JP15796978 A JP 15796978A JP S5585609 A JPS5585609 A JP S5585609A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- tap hole
- gas
- press
- mud
- 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
- Earth Drilling (AREA)
Abstract
PURPOSE: To open a tap hole at a low cost, by boring a blockaded tap hole by means of a hollow steel pipe attached to a boring machine while ejecting high-press. gas from the top end of the steel pipe.
CONSTITUTION: In front of a tap hole 1 blockaded by filling mud 1a is set a boring machine 4 provided with a steel pipe 2, which is opened at both ends, through a shank 3. The top end of the steel pipe 2 is pressed to the mud 1a, and the drill motor 41, the hammer motor 42 of the boring machine 4 are diriven so as to give revolving and percussing motion to the steel pipe 2. Simultaneously, high press. gas is delivered through a gas-feeding pipe 5 and is ejected through the top end of the steel pipe 2. Revolution and percussion of the steel pipe 2 bores the mud 1a. During the operation, because the top end of the steel pipe 2 is cooled by the high-press. gas, thereby effecting no lowering in rigidity thereof, and because the cut off powder of the mud 1a is taken out of the tap hole by the high-press. gas, the tap hole 1 is opened easily at a low cost without use of expensive bits.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15796978A JPS5585609A (en) | 1978-12-21 | 1978-12-21 | Boring method for tap hole of blast furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15796978A JPS5585609A (en) | 1978-12-21 | 1978-12-21 | Boring method for tap hole of blast furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5585609A true JPS5585609A (en) | 1980-06-27 |
Family
ID=15661390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15796978A Pending JPS5585609A (en) | 1978-12-21 | 1978-12-21 | Boring method for tap hole of blast furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5585609A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069191A1 (en) * | 1999-07-07 | 2001-01-17 | Von Roll Umwelttechnik AG | Tapping apparatus and method |
-
1978
- 1978-12-21 JP JP15796978A patent/JPS5585609A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069191A1 (en) * | 1999-07-07 | 2001-01-17 | Von Roll Umwelttechnik AG | Tapping apparatus and method |
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