JPS5766242A - Method and apparatus for dredging - Google Patents

Method and apparatus for dredging

Info

Publication number
JPS5766242A
JPS5766242A JP14091080A JP14091080A JPS5766242A JP S5766242 A JPS5766242 A JP S5766242A JP 14091080 A JP14091080 A JP 14091080A JP 14091080 A JP14091080 A JP 14091080A JP S5766242 A JPS5766242 A JP S5766242A
Authority
JP
Japan
Prior art keywords
capsule
sludge
air
opened
valve
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
Application number
JP14091080A
Other languages
Japanese (ja)
Inventor
Akio Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUGA KIKAI KOGYO KK
Original Assignee
SUGA KIKAI KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUGA KIKAI KOGYO KK filed Critical SUGA KIKAI KOGYO KK
Priority to JP14091080A priority Critical patent/JPS5766242A/en
Publication of JPS5766242A publication Critical patent/JPS5766242A/en
Pending legal-status Critical Current

Links

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To recover high concentrations of sludge as well as to make the scale of a dehydrator small in size by using a system in which a capsule whose lower part is opened is buried in sludge layer, and sludge alone is recovered by a recovery means while sending air into the capsule.
CONSTITUTION: A capsule 1 whose lower part is opened is buried in a given sludge layers, the air-vent valve 4 of the capsule 1 is closed, air is sent into the capsule 1 from a ship, and while collecting sludge in the capusle 1 in the central portion by means of a raking plate 8, the sludge along is discharged through a hose onto the ship. After the recovery of sludge, the capsule 1 is once pulled up to water from the sludge layer S and moved to the next dredging position, the valve 4 is opened to vent air in the capsule 1, the capsule 1 is brought down to the sludge layer S, the valve 4 is closed, and the same operations are repeated.
COPYRIGHT: (C)1982,JPO&Japio
JP14091080A 1980-10-08 1980-10-08 Method and apparatus for dredging Pending JPS5766242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14091080A JPS5766242A (en) 1980-10-08 1980-10-08 Method and apparatus for dredging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14091080A JPS5766242A (en) 1980-10-08 1980-10-08 Method and apparatus for dredging

Publications (1)

Publication Number Publication Date
JPS5766242A true JPS5766242A (en) 1982-04-22

Family

ID=15279654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14091080A Pending JPS5766242A (en) 1980-10-08 1980-10-08 Method and apparatus for dredging

Country Status (1)

Country Link
JP (1) JPS5766242A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637135B2 (en) * 2001-03-09 2003-10-28 Warren Howard Chesner Contaminated sediment removal vessel
US6640470B2 (en) * 2001-03-09 2003-11-04 Warren Howard Chesner Contaminated sediment remediation vessel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838277U (en) * 1971-09-14 1973-05-11
JPS5135532A (en) * 1974-09-20 1976-03-26 Sumitomo Shipbuild Machinery KAATSUSENKANSHI KISAIDEIHO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838277U (en) * 1971-09-14 1973-05-11
JPS5135532A (en) * 1974-09-20 1976-03-26 Sumitomo Shipbuild Machinery KAATSUSENKANSHI KISAIDEIHO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637135B2 (en) * 2001-03-09 2003-10-28 Warren Howard Chesner Contaminated sediment removal vessel
US6640470B2 (en) * 2001-03-09 2003-11-04 Warren Howard Chesner Contaminated sediment remediation vessel

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