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EP3626891A1 - Tète de tarière et corps flottant la comprenant - Google Patents

Tète de tarière et corps flottant la comprenant Download PDF

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Publication number
EP3626891A1
EP3626891A1 EP18195503.0A EP18195503A EP3626891A1 EP 3626891 A1 EP3626891 A1 EP 3626891A1 EP 18195503 A EP18195503 A EP 18195503A EP 3626891 A1 EP3626891 A1 EP 3626891A1
Authority
EP
European Patent Office
Prior art keywords
auger head
cylindrical body
head according
transporting
cylinder
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.)
Withdrawn
Application number
EP18195503.0A
Other languages
German (de)
English (en)
Inventor
Basel YOUSEF
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.)
Dredge Yard BV
Original Assignee
Dredge Yard BV
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 Dredge Yard BV filed Critical Dredge Yard BV
Priority to EP18195503.0A priority Critical patent/EP3626891A1/fr
Priority to PCT/EP2019/075072 priority patent/WO2020058364A1/fr
Publication of EP3626891A1 publication Critical patent/EP3626891A1/fr
Withdrawn legal-status Critical Current

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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
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/181—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels including a conveyor
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/248—Cleaning the wheels or emptying the digging elements mounted on the wheels, e.g. in combination with spoil removing equipment
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

Definitions

  • the present invention relates to an auger head according to the preamble of claim 1.
  • the invention also relates to a floating body, for example a ship comprising the auger head according to the invention.
  • An auger head is a cylindrical body with a longitudinal axis, being the rotation axis of the cylindrical body. At the body's outer surface a helical screw part is provided, such that upon rotation of the body along a water bottom material is transported from ends of said body towards an intermediate portion. Material is then removed from said intermediate portion by means of a suction tube positioned at some distance from the auger head.
  • Such known auger head provides the disadvantage that only a small part of the material is actually removed from the water bottom. A large part of said material is swirled up by the rotary action of the auger head missing the entrance of the suction tube.
  • the invention aims at providing an improved auger head of the kind mentioned in the preamble.
  • the invention further aims at providing an auger head that provides a better removal of material from the water bottom.
  • the invention also aims at providing an improved and easier to use auger head than an auger head according to the state of the art.
  • the invention provides an auger head as mentioned in claim 1.
  • This auger head has the advantage that removal of material from the water bottom is done securely, removing substantially all material that has been transported to the intermediate portion of the auger head.
  • the auger head according to the present invention can be rotated at a higher rotational speed than known auger heads. Even at higher rotational speeds, no swirling up of material is obtained and thus no material is left at the water bottom. Such synergistic effect is a surprising and advantageous effect, since less effort is required to remove said material. Also, due to the higher rotational speed, the force impact of the auger head against the water bottom is much higher providing an even more improved effectiveness.
  • the invention therefore relates to an auger head for removing material from a water bottom, comprising a cylindrically shaped body for performing a rotary movement along the water bottom, said cylindrical body comprising a helically wound screw on its outer surface, said helically wound screw is embodied in two part form, a first screw part for transporting said material from a first end of said cylinder to an intermediate portion of said cylinder and a second screw part for transporting said material from a second end of said cylinder to said intermediate portion of said cylinder upon performing the rotary movement along the water bottom in one direction, characterized in that the cylindrical body comprises an intermediate opening near said intermediate portion for removing said material through said cylindrical body and a discharge opening for removing said material from the cylindrical body.
  • the present auger head ensures an excellent removal of material from the water bottom, since the material is in a first step transported by means of the helical screw at the outside of the cylindrical body to an intermediate position thereof, usually but not necessarily to the center portion, and in a second but substantially continuous step the material enters the inside of the cylindrical body through said opening, such that the material can be removed through said cylindrical body and out of the cylindrical body through the discharge opening.
  • the auger head comprises a discharge tube connected to the discharge opening of said cylindrical body for transporting said material to a remote location.
  • the advantage of the present embodiment is that the discharge tube is directly connected to the hollow inside of the cylindrical body collecting said material. Thus, no foreign material from around the end of the discharge tube will enter the discharge tube.
  • the auger head comprises a pump for actively removing and transporting said material. Since the pump is actively coupled to the intermediate opening in the cylinder, it will apply a vacuum action at said intermediate opening ensuring a continuous and effective removal of said material through said intermediate opening after said material has been transported towards the intermediate opening by means of the screw parts at the cylinder's outer surface.
  • said cylindrical body may optionally have an internal screw for internally transporting material from said intermediate opening near said intermediate portion towards a discharge opening at an end of said cylindrical body, i.e. towards the discharge tube.
  • an auger head wherein a pump is connected to said discharge opening for removing said material from said cylindrical body, optionally with intermediate placement of a transport line such as a pipeline, a tube or a hose.
  • a transport line such as a pipeline, a tube or a hose.
  • the water bottom comprises solid material
  • Said cutting or grinding action is performed optimally, when the said teeth are connected to said helically wound screws, since in such embodiment the teeth with interact most efficiently with the water bottom.
  • An easily applicable embodiment is obtained when said cylindrical body is rotatably coupled to a frame part at its two longitudinal ends.
  • Such embodiment provides a strong and stable apparatus, easily withstanding forces that are encountered at water bottoms, especially water bottoms comprising large pieces of material like rocks and stones, but pieces of organic material as well.
  • a rotation device also referred to as rotator
  • the auger head has a cylindrical body with a longitudinal axis, said body rotating along said longitudinal axis.
  • the rotation device preferably is a motor, for example an electric or hydraulic motor. Said rotation device directly interacts with said cylindrical body.
  • the invention relates to an auger head wherein at a first longitudinal end a rotator is provided for inducing a rotatable motion to said cylinder with respect to the frame part and at a second longitudinal end the discharge tube is connected for transporting said material from said cylindrical body to a remote location.
  • At least one of said rotator and said discharge tube is rigidly connected to said frame.
  • said frame adds to the rigidity and strength of the complete construction of auger head and frame, including the rotator and tube connection.
  • the invention relates to an auger head as mentioned above, operable from a ship.
  • the invention also relates to a ship, comprising an auger head according to the present invention, comprising a frame to which said auger head is rotatably connected.
  • Fig. 1 shows an auger head 1, comprising a substantially cylindrical body 2 with screw parts 3, 4 on its outer surface 5.
  • the screw part 3 is wound oppositely with respect to screw part 4, such that upon rotation of the auger head along its longitudinal axis 6 (as shown in Fig. 2 ) in a suitable direction, material caught in between two neighboring screw wall parts 7, 8 (see especially Fig. 2 ) is transferred to an intermediate portion 9 of the auger head 1. Substantially all material caught in between two neighboring screw part walls from between a first end 10 and a second end 11 of the auger head will be transferred towards said intermediate portion 9.
  • the auger head 1 comprises a single intermediate portion, since two oppositely threaded screw parts are provided at the auger head's surface.
  • four, six, eight or any other even number of screw parts may be applied, yielding two, three, four et cetera intermediate portions, respectively.
  • the advantage of an even number of screw parts is that there are always two screw parts working together, moving material towards an opening at a common intermediate portion in between said two screw parts.
  • a single pitch, a double pitch or even a triple or quadruple pitch may be applied. It is preferred that an opening is provided in the intermediate portion at the end of each pitch so as to obtain an optimum removal of material through said opening at the end of each of said pitches.
  • the drawings show an embodiment with a double pitch and two screw parts.
  • an intermediate opening 12 is made in the body's surface, yielding entrance to the body's hollow inside. As a result, material that is transferred towards said intermediate opening 12 will be transferred into the body's hollow inside.
  • a discharge opening 13 is provided for removing said material from the body's hollow inside.
  • a discharge tube 14 may be connected to the said discharge opening 13 for transporting the material to a remote location.
  • Fig. 2 shows a front view of the auger head 1.
  • the longitudinal axis 6 is shown in this figure.
  • Fig. 3 finally shows a sectional view of the auger head 1 according to the present invention.
  • An optional screw 15 is provided in the body's hollow inside, assisting in transporting material towards end 10, after it has entered the auger head 1 through said intermediate opening 12. This screw 15 prevents lagging of material inside the auger head 1.
  • the screw 15 may be static, in that no rotational movement is induced on said screw with respect to said water bottom.
  • a rotator 16 is provided for rotating the auger head 1 along its longitudinal axis 6. So as to be able to induce said movement, the rotator is coupled to a frame (not shown) that has a static position with respect to a water bottom or the like, as indicated above.
  • the frame is preferably connected to a floating device when removing material from a water bottom. Most preferably, the frame is rotatably connected at both ends 10, 11 of the auger head 1.
  • the screw parts 3, 4 have a top part 17 at a position away from the body's surface 5.
  • cutting teeth 18 are provided for cutting and destroying material at the water bottom.
  • the invention also relates to all combinations of features described here independently of each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Screw Conveyors (AREA)
EP18195503.0A 2018-09-19 2018-09-19 Tète de tarière et corps flottant la comprenant Withdrawn EP3626891A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18195503.0A EP3626891A1 (fr) 2018-09-19 2018-09-19 Tète de tarière et corps flottant la comprenant
PCT/EP2019/075072 WO2020058364A1 (fr) 2018-09-19 2019-09-18 Tête de tarière et corps flottant comprenant celle ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18195503.0A EP3626891A1 (fr) 2018-09-19 2018-09-19 Tète de tarière et corps flottant la comprenant

Publications (1)

Publication Number Publication Date
EP3626891A1 true EP3626891A1 (fr) 2020-03-25

Family

ID=63642877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18195503.0A Withdrawn EP3626891A1 (fr) 2018-09-19 2018-09-19 Tète de tarière et corps flottant la comprenant

Country Status (2)

Country Link
EP (1) EP3626891A1 (fr)
WO (1) WO2020058364A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423859A (en) * 1965-04-07 1969-01-28 Machinery Inc Const Road construction methods and apparatus
US3521387A (en) * 1969-04-04 1970-07-21 Norbert V Degelman Dredging machine
US4037874A (en) * 1975-10-28 1977-07-26 Nor-Am Resources Technology Incorporated Apparatus for underwater retrieval, selection and concentration of material for ocean mining
US4040667A (en) * 1974-08-16 1977-08-09 Hans Tax Apparatus for recovering particulate material from the sea bottom
NL8403586A (nl) * 1984-11-26 1986-06-16 Ad J Van Mill Holding B V Sleufgraafinrichting.
US6318005B1 (en) * 2000-06-16 2001-11-20 Ellicott Machine Corporation International Dredge with improved auger shroud
WO2003106255A1 (fr) * 2002-06-15 2003-12-24 Sun Soon Park Appareil d'evacuation de matieres flottantes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267652A (en) * 1979-04-27 1981-05-19 Joseph Senesac Dredging system and apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423859A (en) * 1965-04-07 1969-01-28 Machinery Inc Const Road construction methods and apparatus
US3521387A (en) * 1969-04-04 1970-07-21 Norbert V Degelman Dredging machine
US4040667A (en) * 1974-08-16 1977-08-09 Hans Tax Apparatus for recovering particulate material from the sea bottom
US4037874A (en) * 1975-10-28 1977-07-26 Nor-Am Resources Technology Incorporated Apparatus for underwater retrieval, selection and concentration of material for ocean mining
NL8403586A (nl) * 1984-11-26 1986-06-16 Ad J Van Mill Holding B V Sleufgraafinrichting.
US6318005B1 (en) * 2000-06-16 2001-11-20 Ellicott Machine Corporation International Dredge with improved auger shroud
WO2003106255A1 (fr) * 2002-06-15 2003-12-24 Sun Soon Park Appareil d'evacuation de matieres flottantes

Also Published As

Publication number Publication date
WO2020058364A1 (fr) 2020-03-26

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