JPS57158537A - Method and device for collecting sand of bottom of water - Google Patents

Method and device for collecting sand of bottom of water

Info

Publication number
JPS57158537A
JPS57158537A JP4442081A JP4442081A JPS57158537A JP S57158537 A JPS57158537 A JP S57158537A JP 4442081 A JP4442081 A JP 4442081A JP 4442081 A JP4442081 A JP 4442081A JP S57158537 A JPS57158537 A JP S57158537A
Authority
JP
Japan
Prior art keywords
sand
water
pump
sand pump
cutter
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
JP4442081A
Other languages
Japanese (ja)
Inventor
Haruyuki Yamaoka
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.)
YAMAOKA SHIYOUKAI KK
YAMAOKA SHOKAI KK
Original Assignee
YAMAOKA SHIYOUKAI KK
YAMAOKA SHOKAI 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 YAMAOKA SHIYOUKAI KK, YAMAOKA SHOKAI KK filed Critical YAMAOKA SHIYOUKAI KK
Priority to JP4442081A priority Critical patent/JPS57158537A/en
Publication of JPS57158537A publication Critical patent/JPS57158537A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9262—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with jets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418—Depression, aspiration
    • G01N2001/1436—Ejector

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To obtain a device which is excellent in its mud lifting capacity, by capacity of a small-sized pump, by installing a submarine sand pump provided with a rotary cutter, to a suction port of a sand dredger provided with a sand pump on board. CONSTITUTION:In a state that a suction pipe 4 is suspended in the water and a suction part 7 has been approximated to the bottom 17 of the water, when a sand pump 2 is turned by a marine engine 18, also a switch 16 is closed, and a submarine sand pump 10 provided with a cutter is turned, muddy water in the suction pipe 4 is pumped up by the sand pump 2. On the other hand, muddy water C absorbed from an inlet of the marine sand pump 10 with a cutter is jetted out toward a throad part 8 through a nozzle 13, whirling up sand A being in the proximity of an opening part 9 of the lower end of the suction part 7 by a rotary cutter 11 provided on the lower end of the submarine sand pump 10 with a cutter, and also muddy water B is lifted toward the suction pipe 4 from the opening part 9 of the lower end of the suction part 7 by a theory of a water jet pump.
JP4442081A 1981-03-25 1981-03-25 Method and device for collecting sand of bottom of water Pending JPS57158537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4442081A JPS57158537A (en) 1981-03-25 1981-03-25 Method and device for collecting sand of bottom of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4442081A JPS57158537A (en) 1981-03-25 1981-03-25 Method and device for collecting sand of bottom of water

Publications (1)

Publication Number Publication Date
JPS57158537A true JPS57158537A (en) 1982-09-30

Family

ID=12690993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4442081A Pending JPS57158537A (en) 1981-03-25 1981-03-25 Method and device for collecting sand of bottom of water

Country Status (1)

Country Link
JP (1) JPS57158537A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6448937A (en) * 1987-08-12 1989-02-23 Toyo Kankyo Kk Dredger for sludgy soil on bottom under water
JPH0560663A (en) * 1991-09-03 1993-03-12 Penta Ocean Constr Co Ltd Method for sampling underwater deposited earth and sand
CN107905281A (en) * 2017-10-25 2018-04-13 中国港湾工程有限责任公司 Dredging equipment and its dredging method under harbour

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499623U (en) * 1972-04-26 1974-01-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499623U (en) * 1972-04-26 1974-01-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6448937A (en) * 1987-08-12 1989-02-23 Toyo Kankyo Kk Dredger for sludgy soil on bottom under water
JPH0560663A (en) * 1991-09-03 1993-03-12 Penta Ocean Constr Co Ltd Method for sampling underwater deposited earth and sand
CN107905281A (en) * 2017-10-25 2018-04-13 中国港湾工程有限责任公司 Dredging equipment and its dredging method under harbour

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