JPS568790A - Sludge dredger - Google Patents
Sludge dredgerInfo
- Publication number
- JPS568790A JPS568790A JP8128279A JP8128279A JPS568790A JP S568790 A JPS568790 A JP S568790A JP 8128279 A JP8128279 A JP 8128279A JP 8128279 A JP8128279 A JP 8128279A JP S568790 A JPS568790 A JP S568790A
- Authority
- JP
- Japan
- Prior art keywords
- suction mouth
- sludge
- detectors
- sling
- winch
- 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
Abstract
PURPOSE: To selectively dredge only sludge by automatically controlling the position of a suction mouth with the output signals of the sludge layer detector which is provided in a hull and always bringing the suction mouth at the position of the sludge layer.
CONSTITUTION: The suction mouth 1 has a number of sludge layer detectors 2 at its upward and downward position. When surface layer sludge Hv is detected by the detectors 2, the output signals of the detectors 2 are input to the suction position control operation oscillator 3. As a result, the suction mouth sling 8 is wound or rewound through the hydraulic valve control panel 17, switching valve 18, and hydraulic cylinder 6. The suction mouth sling 8 and the drug arm sling 9 are also wound and rewound through the winch motor control panel 14, suction mouth winch 15, and drug arm winch 16. Consequently, the suction mouth 1 is always brought at the position of surface layer sludge Hv.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8128279A JPS568790A (en) | 1979-06-29 | 1979-06-29 | Sludge dredger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8128279A JPS568790A (en) | 1979-06-29 | 1979-06-29 | Sludge dredger |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS568790A true JPS568790A (en) | 1981-01-29 |
Family
ID=13742011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8128279A Pending JPS568790A (en) | 1979-06-29 | 1979-06-29 | Sludge dredger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS568790A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4918174A (en) * | 1972-06-10 | 1974-02-18 | ||
JPS52303A (en) * | 1976-06-18 | 1977-01-05 | Hatsune Denki Kogyo Kk | Rotor of a small size generator |
-
1979
- 1979-06-29 JP JP8128279A patent/JPS568790A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4918174A (en) * | 1972-06-10 | 1974-02-18 | ||
JPS52303A (en) * | 1976-06-18 | 1977-01-05 | Hatsune Denki Kogyo Kk | Rotor of a small size generator |
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