JPS5631945A - Sludge dredger and dredging method - Google Patents
Sludge dredger and dredging methodInfo
- Publication number
- JPS5631945A JPS5631945A JP10850279A JP10850279A JPS5631945A JP S5631945 A JPS5631945 A JP S5631945A JP 10850279 A JP10850279 A JP 10850279A JP 10850279 A JP10850279 A JP 10850279A JP S5631945 A JPS5631945 A JP S5631945A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- signal
- level
- sludge layer
- 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 automatically adjust the level of suction mouth accurately and make it possible to dredge sludge only by controlling a hanging rope by a signal from the sludge layer sensor mounted on the suction mouth.
CONSTITUTION: The upper and the upper probe 16a, 16b of the sludge layr sensor 16 transmits a signal to the control operator 31 through cables 30a, 30b respectively. The rurn corner oscillator 32 of the rubber jint 10 and the stroke oscillator 33 of the hydraulic ram cylinder 21a also transmit a signal to the operator 31. A control signal is transmitted from the operatot 31 to the change-over valve 25 or the winch 21b, actuating either the hydraulic ram cylinder 21a or the winch 21b for controlling the length of hanging rope 6. As a result, the drag arm 3 is tilted for adjustment, and the level of the section mouth 5 is adjusted so that said level may become adequate enough for sucking and dredging only the surface sludge layer 9 above the lower sludge layer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10850279A JPS5631945A (en) | 1979-08-25 | 1979-08-25 | Sludge dredger and dredging method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10850279A JPS5631945A (en) | 1979-08-25 | 1979-08-25 | Sludge dredger and dredging method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5631945A true JPS5631945A (en) | 1981-03-31 |
Family
ID=14486394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10850279A Pending JPS5631945A (en) | 1979-08-25 | 1979-08-25 | Sludge dredger and dredging method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631945A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57163457A (en) * | 1981-04-02 | 1982-10-07 | Takeshi Nishinakayama | Preparation of food like tofu (bean curd) |
US4387519A (en) * | 1980-11-21 | 1983-06-14 | Ihc Holland N.V. | Method for controlling the position of the suction head of a dredge in relation to the bottom |
-
1979
- 1979-08-25 JP JP10850279A patent/JPS5631945A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4387519A (en) * | 1980-11-21 | 1983-06-14 | Ihc Holland N.V. | Method for controlling the position of the suction head of a dredge in relation to the bottom |
JPS57163457A (en) * | 1981-04-02 | 1982-10-07 | Takeshi Nishinakayama | Preparation of food like tofu (bean curd) |
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