WO2003044285A1 - Dispositif de collecte de gravier submerge - Google Patents

Dispositif de collecte de gravier submerge Download PDF

Info

Publication number
WO2003044285A1
WO2003044285A1 PCT/ZA2002/000183 ZA0200183W WO03044285A1 WO 2003044285 A1 WO2003044285 A1 WO 2003044285A1 ZA 0200183 W ZA0200183 W ZA 0200183W WO 03044285 A1 WO03044285 A1 WO 03044285A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
grating
tube
inflow
tubular member
Prior art date
Application number
PCT/ZA2002/000183
Other languages
English (en)
Inventor
Graham Albrecht
Original Assignee
Graham Albrecht
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 Graham Albrecht filed Critical Graham Albrecht
Priority to AU2002351426A priority Critical patent/AU2002351426A1/en
Publication of WO2003044285A1 publication Critical patent/WO2003044285A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for
    • 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
    • E02F3/9243—Passive suction heads with no mechanical cutting means
    • E02F3/925—Passive suction heads with no mechanical cutting means 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
    • E02F3/9293—Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like

Definitions

  • This invention relates to a device for collection of gravel from a submerged bed.
  • a device for the collection of gravel from a submerged bed which includes: a head which is connectable to an inflow of a suction pump and an outflow of a fluid pump, and the head including a tubular member defining a gravel intake opening which is in fluid communication with the inflow and one or more jets in fluid communication with the outflow.
  • the device may include a first connection means for connecting to the inflow of a suction pump and a second connection means for connecting to the outflow of a fluid pump.
  • the head may include a first plurality of jets spaced about the opening and directed towards the submerged bed, in use.
  • the head may include a second plurality of laterally directed jets spaced about the head.
  • the head may include a cover for at least partially covering the tubular member, the cover being open at the bottom thereof.
  • the cover may be generally bell shaped and the perimeter of the open end may define, in use, the area on the bed to be subjected to suction.
  • the head may further include a grating arranged on the head and over the opening such that objects larger than the mesh of the grating are prevented, in use, from entering into the opening.
  • the head may also include a clearing arrangement for dislodging objects captured or wedged in the mesh openings defined in the grating.
  • the clearing arrangement may include projections, which are moveable relative to the grating and configured to fit through the openings defined in the grating.
  • the projections may be arranged on the tubular member about its opening.
  • the head may include a tube and the grating may be arranged on one end of a tube which may be co-axially with and slidably fitted over the tubular member.
  • the tube may be slidably moveable between a first position with the projections clear of the openings, of the grating and a second position with the projections projecting into, or through the openings of the grating.
  • the head may include an urging means for urging the tube into the first position, its normal operating position, in use.
  • the clearing arrangement may also include one or more guide runners and/ or stoppers for guiding the movement of the tube of the grating.
  • the grating may extend downwards and project out of the cover of the head in its first position and be retracted into the head in its second position. It will be appreciated that, in use, when an object is stuck in one of the openings of the grid, the head may be lowered such that contact is made between the bed and the grating and the grating moved into the second position allowing the projections to dislodge the object, after which normal operations can be resumed.
  • the cover of the head may be fast with the tube and the grating may extend downwards and may remain in the head in its first position and second position. It will be appreciated that, in use, when an object is stuck in one of the openings of the grid, the head may be lowered such that contact is made between the bed and the cover and the grating moved into the second position allowing the projections to dislodge the object, after which normal operations can be resumed.
  • the head may also include a deflector within the cover and arranged about the tubular member.
  • the deflector and the cover may be provided with apertures, which are arranged such that, in use, water is sucked into the head and its flow directed from an upper region of the cover, downward towards and through apertures on the outer periphery of the deflector towards the bed and into the gravel intake. It will be appreciated that this water flow, with or without the first plurality of jets, aids in loosening the gravel for uptake into the gravel intake.
  • rocking movement of the float may intermittently lower the head contacting the grating or cover, as the case may be, with the bed to dislodge any objects such as stones from the grating.
  • the device may further include a suction pump and the first connection means may be a flexible pipe for connecting the inflow of the suction pump to the head. At least a portion of the pipe may be a reinforced plastic pipe.
  • the device may further include a fluid pump and the second connection means may be a flexible pipe for connecting the outflow of the fluid pump to the head.
  • the fluid pump may be a high pressure water pump.
  • the second plurality of laterally directed jets spaced about the head may be independently operable such that the head may be operably moveable by an operator in any lateral direction as desired. It will be appreciated that the lateral movement may be complimented by a crane at the surface from which the device is suspended.
  • the crane may be located on a ship or on land.
  • the device may further include one or more buoys from which the flexible pipe for connecting the inflow of the suction pump to the head may be suspended, in use.
  • Figure 1 shows schematically a partial sectional side view of one embodiment of the device for the collection of gravel from a submerged bed, in accordance with the invention
  • Figure 2 shows schematically a side view of the one embodiment of the device
  • Figure 3 shows schematically a side view of the device
  • Figure 4 shows a side view of the device, in use, in accordance with the invention
  • Figure 5 shows a side view of the device, in use
  • Figure 6 shows a partial sectional side view of another embodiment of device, in accordance with the invention.
  • Figure 7 shows a partial sectional three dimensional view of the other embodiment of device.
  • reference numeral 10 generally refers to the device for the collection of gravel from a submerged bed.
  • the device 10 includes a head 12, which is connectable to an inflow of a suction pump (not shown) and an outflow of a high pressure water pump 14.
  • the head 12 includes a tubular member 16 defining a gravel intake opening 18, which is in fluid communication with the inflow.
  • the head 12 further includes a plurality jets 20 in fluid communication with the outflow of the pump 14.
  • the device 10 further includes a suction pump (not shown) and the first connection means is in the form a flexible pipe 22 for connecting the inflow of the suction pump to a flange 24 arranged on the head 12.
  • a portion of the pipe 22 is reinforced plastic pipe.
  • the device 10 further includes a high pressure water pump 14 and the second connection means is in the form of a flexible high pressure pipe 26 for connecting the outflow of the pump 14 to the head 12.
  • the head 12 further includes a first plurality of jets 20.1 spaced about the opening 18 and directed towards the submerged bed 28, in use.
  • the head 12 also includes a second plurality of laterally directed jets 20.2 spaced about the head 12.
  • the head 12 also includes a generally bell shaped cover 13.
  • the head 12 further includes a grating 30 arranged on the head 12 and over the opening 18 such that objects larger than the mesh of the grating is prevented, in use, from entering into the opening 18.
  • the head 12 then also include a clearing arrangement for dislodging objects captured or wedged in the mesh openings defined in the grating.
  • the clearing arrangement includes projections 32, which are moveable relative to the grating 30 and configured to fit through the openings defined in the grating 30.
  • the projections 32 are arranged on the tubular member 16 about its opening 18.
  • the head 12 includes a tube 34 and the grating 30 is arranged on one end of the tube 34 which is co-axially with, and slidably fitted over the tubular member 16.
  • the tube 16 is slidably moveable between a first position with the projections 32 clear of the openings of the grating 30 and a second position with the projections projecting into, or through the openings of the grating 30.
  • the head shown in Figure 1 also includes an urging means in the form of a coil spring 36 for urging the tube 34 into the first position, its normal
  • the clearing arrangement shown in Figure 1 also includes three guide runners 38 spaced about the inside of the head 12 for guiding the movement of the tube 34 of the grating 30.
  • the grating 30 extends downwards and project out of the head 12 in its first position and is retracted into the head 12 in its second position.
  • the second plurality of laterally directed jets 20.2 spaced about the head 12 are independently operable such that the head may be operably moveable by an operator in any lateral direction as desired. It will be appreciated that the lateral movement can be complimented by a crane 40 as shown in figures 4 and 5 at the surface from which the device 10 is suspended.
  • the crane 40 can be located on a ship 42 or on land 44.
  • the device 10 further includes two buoys 46 from which the flexible pipe 22 for connecting the inflow of the suction pump to the head 12 is suspended, in use.
  • the head 12 of device shown in figures 3 and 4 is fitted with a protective shock absorbing skirting 48.
  • the head 12 is further fitted with lights 50 and an underwater closed circuit video camera 52 to enable an operator to see the sea bed 28.
  • the head 12 also includes a deflector 54 within the cover 13 and is arranged about the tubular member 16.
  • the deflector 54 and the cover 13 are provided with apertures, 56 and 58, respectively, which are arranged such that, in use, water is sucked into the head 12 and its flow, shown by the arrows marked 60, is directed from an upper region of the cover 13, downward towards and through the apertures 56 on the outer periphery of the deflector 54 towards the bed 28 and into the gravel intake opening 18.
  • this embodiment of the device 10 also includes a stopper arrangement 62 to limit the movement of the cover 13 relative to the tubular member 16.
  • the device 10 is also provided with eyeets 64 for attaching a crane cable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

L'invention concerne un dispositif (10) de collecte de gravier provenant d'un lit submergé, ledit dispositif comprenant une tête (12) connectable à une arrivée d'une pompe aspirante et un écoulement d'une pompe à fluide. La tête comprend un élément tubulaire (16) formant une ouverture (18) d'amenée de gravier en communication fluidique avec l'arrivée et au moins un jet (20) en communication fluidique avec l'écoulement.
PCT/ZA2002/000183 2001-11-22 2002-11-21 Dispositif de collecte de gravier submerge WO2003044285A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002351426A AU2002351426A1 (en) 2001-11-22 2002-11-21 Submerged gravel collection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2001/9622 2001-11-22
ZA200109622 2001-11-22

Publications (1)

Publication Number Publication Date
WO2003044285A1 true WO2003044285A1 (fr) 2003-05-30

Family

ID=25589383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2002/000183 WO2003044285A1 (fr) 2001-11-22 2002-11-21 Dispositif de collecte de gravier submerge

Country Status (2)

Country Link
AU (1) AU2002351426A1 (fr)
WO (1) WO2003044285A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008046115A2 (fr) * 2006-10-09 2008-04-17 Graham Albrecht Dispositif et système d'exploitation de gravier submergé
GB2451252A (en) * 2007-07-24 2009-01-28 Rockbourne Environmental Ltd A Cleaning Apparatus
EP2507179A2 (fr) * 2009-12-01 2012-10-10 Thomas J. Kryzak Système de réhabilitation environnementale
WO2013028076A1 (fr) * 2011-08-10 2013-02-28 Jarala As Dispositif de drague de réservoirs d'eau
CN110295637A (zh) * 2019-06-26 2019-10-01 泉州市泉港区科尚赢德工业科技有限公司 一种用于桥梁施工的淤泥清理设备

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476207C (de) * 1925-02-22 1929-05-13 August Peek Vorrichtung zur Foerderung fester Stoffe in Mischung mit Wasser im Tagebau durch Pumpen
US2125740A (en) * 1934-12-24 1938-08-02 William H Schacht Hydraulic excavating device or booster
US2774569A (en) * 1954-04-05 1956-12-18 Karl Oscar F Jacobsen Earth moving hydraulic suction nozzles
NL7018191A (fr) * 1969-12-15 1971-06-17
US3585739A (en) * 1967-10-16 1971-06-22 Spanstaal Method and suction dredging installation for obtaining sand
EP0047803A1 (fr) * 1980-09-12 1982-03-24 Dosbouw v.o.f. Procédé et dispositif à drague suceuse pour aspirer des matières draguées
US4412394A (en) * 1982-09-09 1983-11-01 Coker Earnest Z Dredging suction-jet head
DE3923113A1 (de) * 1989-07-13 1991-01-24 Telefunken Systemtechnik Vorrichtung zur entsorgung von durch pumpfaehige stoffe verunreinigten meeres- und seeboeden
DE19546845A1 (de) * 1994-12-20 1996-06-27 Ihc Holland Nv Saugbaggerschiff mit einer an einem Kabel aufgehängten Saugvorrichtung, die mit einem Deinungskompensator versehen ist
US6126016A (en) * 1995-02-28 2000-10-03 Graham; Neil Deryck Bray Screening device and apparatus including same

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476207C (de) * 1925-02-22 1929-05-13 August Peek Vorrichtung zur Foerderung fester Stoffe in Mischung mit Wasser im Tagebau durch Pumpen
US2125740A (en) * 1934-12-24 1938-08-02 William H Schacht Hydraulic excavating device or booster
US2774569A (en) * 1954-04-05 1956-12-18 Karl Oscar F Jacobsen Earth moving hydraulic suction nozzles
US3585739A (en) * 1967-10-16 1971-06-22 Spanstaal Method and suction dredging installation for obtaining sand
NL7018191A (fr) * 1969-12-15 1971-06-17
EP0047803A1 (fr) * 1980-09-12 1982-03-24 Dosbouw v.o.f. Procédé et dispositif à drague suceuse pour aspirer des matières draguées
US4412394A (en) * 1982-09-09 1983-11-01 Coker Earnest Z Dredging suction-jet head
DE3923113A1 (de) * 1989-07-13 1991-01-24 Telefunken Systemtechnik Vorrichtung zur entsorgung von durch pumpfaehige stoffe verunreinigten meeres- und seeboeden
DE19546845A1 (de) * 1994-12-20 1996-06-27 Ihc Holland Nv Saugbaggerschiff mit einer an einem Kabel aufgehängten Saugvorrichtung, die mit einem Deinungskompensator versehen ist
US6126016A (en) * 1995-02-28 2000-10-03 Graham; Neil Deryck Bray Screening device and apparatus including same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008046115A2 (fr) * 2006-10-09 2008-04-17 Graham Albrecht Dispositif et système d'exploitation de gravier submergé
WO2008046115A3 (fr) * 2006-10-09 2009-05-07 Graham Albrecht Dispositif et système d'exploitation de gravier submergé
GB2451252A (en) * 2007-07-24 2009-01-28 Rockbourne Environmental Ltd A Cleaning Apparatus
EP2507179A2 (fr) * 2009-12-01 2012-10-10 Thomas J. Kryzak Système de réhabilitation environnementale
EP2507179A4 (fr) * 2009-12-01 2014-10-15 Thomas J Kryzak Système de réhabilitation environnementale
WO2013028076A1 (fr) * 2011-08-10 2013-02-28 Jarala As Dispositif de drague de réservoirs d'eau
CN110295637A (zh) * 2019-06-26 2019-10-01 泉州市泉港区科尚赢德工业科技有限公司 一种用于桥梁施工的淤泥清理设备
CN110295637B (zh) * 2019-06-26 2021-07-20 泉州台商投资区沐鸿科技有限公司 一种用于桥梁施工的淤泥清理设备

Also Published As

Publication number Publication date
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