JPS5441902A - Maintenance of furnace of coke oven - Google Patents
Maintenance of furnace of coke ovenInfo
- Publication number
- JPS5441902A JPS5441902A JP10769177A JP10769177A JPS5441902A JP S5441902 A JPS5441902 A JP S5441902A JP 10769177 A JP10769177 A JP 10769177A JP 10769177 A JP10769177 A JP 10769177A JP S5441902 A JPS5441902 A JP S5441902A
- Authority
- JP
- Japan
- Prior art keywords
- black smoke
- smoke
- coking
- time lag
- coking chamber
- 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
- Coke Industry (AREA)
Abstract
PURPOSE: To detect accurately and quickly which coking chamber is emitting black smoke in an abnormal operation, by using the corresponding relation between the time lag of the detecting signal for black smoke and charging operations.
CONSTITUTION: Many coking chambers 11 in the coke oven 1 are charged with coals, which are leveled with the leveling rod 23 and heated to be carbonized. When cracks occur in the joint of the oven walls 13, the gas leak from the coking operation and emits black smoke from the exhauster 5. The black smoke is detected with the smoke densitometer 6 and the indicator 7 shows the smoke concentration. The coking chamber emitting black smoke 11 is judged by using the corresponding relation between the time lag of the detecting signal for the black smoke and charging operations. For instance, the output signal S2 for the indicator 7 and the leveling signal S1 for the leveling rod 23 in the pusher 2 are charted on the recorder 8. The damaged coking chamber is thus judged by the time lag of the record.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10769177A JPS5441902A (en) | 1977-09-09 | 1977-09-09 | Maintenance of furnace of coke oven |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10769177A JPS5441902A (en) | 1977-09-09 | 1977-09-09 | Maintenance of furnace of coke oven |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5441902A true JPS5441902A (en) | 1979-04-03 |
JPS5747945B2 JPS5747945B2 (en) | 1982-10-13 |
Family
ID=14465509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10769177A Granted JPS5441902A (en) | 1977-09-09 | 1977-09-09 | Maintenance of furnace of coke oven |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5441902A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5793125U (en) * | 1980-11-28 | 1982-06-08 | ||
US5278126A (en) * | 1989-03-31 | 1994-01-11 | Ricoh Company, Ltd. | Recording process and apparatus and recording medium in the same |
US5335001A (en) * | 1990-04-09 | 1994-08-02 | Ricoh Company, Ltd. | Process and apparatus for forming dot image capable of controlling dot size |
US5369421A (en) * | 1992-02-14 | 1994-11-29 | Ricoh Company, Ltd. | Method of printing colored image and apparatus suitable therefor |
US5479382A (en) * | 1993-08-23 | 1995-12-26 | Hitachi, Ltd. | Information recording medium comprising recording layer capable of recording under-exposure to recording laser beam |
-
1977
- 1977-09-09 JP JP10769177A patent/JPS5441902A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5793125U (en) * | 1980-11-28 | 1982-06-08 | ||
US5278126A (en) * | 1989-03-31 | 1994-01-11 | Ricoh Company, Ltd. | Recording process and apparatus and recording medium in the same |
US5335001A (en) * | 1990-04-09 | 1994-08-02 | Ricoh Company, Ltd. | Process and apparatus for forming dot image capable of controlling dot size |
US5369421A (en) * | 1992-02-14 | 1994-11-29 | Ricoh Company, Ltd. | Method of printing colored image and apparatus suitable therefor |
US5479382A (en) * | 1993-08-23 | 1995-12-26 | Hitachi, Ltd. | Information recording medium comprising recording layer capable of recording under-exposure to recording laser beam |
Also Published As
Publication number | Publication date |
---|---|
JPS5747945B2 (en) | 1982-10-13 |
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