JPS6449885A - Method of detecting material in extractor for heating furnace - Google Patents
Method of detecting material in extractor for heating furnaceInfo
- Publication number
- JPS6449885A JPS6449885A JP20606087A JP20606087A JPS6449885A JP S6449885 A JPS6449885 A JP S6449885A JP 20606087 A JP20606087 A JP 20606087A JP 20606087 A JP20606087 A JP 20606087A JP S6449885 A JPS6449885 A JP S6449885A
- Authority
- JP
- Japan
- Prior art keywords
- extractor
- heating furnace
- decided
- extractors
- distortion
- 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
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
PURPOSE: To automatically detect whether or not a material is mounted on an extractor by attaching distortion gauges to all extractors for supporting the material to be conveyed or to at least extractors located at both sides. CONSTITUTION: Distortion gauges 3 are respectively attached to a plurality of extractors 2 provided widthwise the extracting end of a heating furnace 1. Based on output signals from these distortion gauges 3 and the length of one material 4 conveyed in the heating furnace 1, it is decided whether or not the material is mounted on the extractor. The length of the material when the material 4 is received by the extractor 2 and the output signal from the distortion gauge 3 attached to the extractor 2 are inputted to a relative operation circuit 7 through an amplifier 6. In the relative operation circuit 7, it is decided whether or not the material is detected. Namely, when it is decided that the material 4 is mounted on the extractor 2, the lowering command of the extractor 2 is outputted to place the material 4 on an extracting roller. When it is decided that the material 4 is not mounted on the extractor, a series of extraction cycle is stopped to generate an abnormal alarm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20606087A JPS6449885A (en) | 1987-08-19 | 1987-08-19 | Method of detecting material in extractor for heating furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20606087A JPS6449885A (en) | 1987-08-19 | 1987-08-19 | Method of detecting material in extractor for heating furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6449885A true JPS6449885A (en) | 1989-02-27 |
JPH0543956B2 JPH0543956B2 (en) | 1993-07-05 |
Family
ID=16517192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20606087A Granted JPS6449885A (en) | 1987-08-19 | 1987-08-19 | Method of detecting material in extractor for heating furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6449885A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100513149B1 (en) * | 2000-06-24 | 2005-09-09 | 주식회사 포스코 | slab falling prevention apparatus |
-
1987
- 1987-08-19 JP JP20606087A patent/JPS6449885A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100513149B1 (en) * | 2000-06-24 | 2005-09-09 | 주식회사 포스코 | slab falling prevention apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0543956B2 (en) | 1993-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |