EP2808452A1 - Équipement de dragage et procédé pour fonds océaniques ayant des polluants et/ou des substances toxiques - Google Patents

Équipement de dragage et procédé pour fonds océaniques ayant des polluants et/ou des substances toxiques Download PDF

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Publication number
EP2808452A1
EP2808452A1 EP14170710.9A EP14170710A EP2808452A1 EP 2808452 A1 EP2808452 A1 EP 2808452A1 EP 14170710 A EP14170710 A EP 14170710A EP 2808452 A1 EP2808452 A1 EP 2808452A1
Authority
EP
European Patent Office
Prior art keywords
seafloor
equipment
sediments
machine
bell
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.)
Granted
Application number
EP14170710.9A
Other languages
German (de)
English (en)
Other versions
EP2808452B1 (fr
Inventor
Paolo Giglioli
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.)
ITALIA IMPIANTI Sas di Paolo Giglioli & C
Servizi Ecologici Porto di Genova Srl
Simam SpA
Original Assignee
ITALIA IMPIANTI Sas di Paolo Giglioli & C
Servizi Ecologici Porto di Genova Srl
Simam SpA
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 ITALIA IMPIANTI Sas di Paolo Giglioli & C, Servizi Ecologici Porto di Genova Srl, Simam SpA filed Critical ITALIA IMPIANTI Sas di Paolo Giglioli & C
Publication of EP2808452A1 publication Critical patent/EP2808452A1/fr
Application granted granted Critical
Publication of EP2808452B1 publication Critical patent/EP2808452B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02F3/8858—Submerged units
    • E02F3/8866—Submerged units self propelled

Definitions

  • the present invention mainly relates to a dredging equipment for seafloors having pollutants and/or toxicants.
  • the technical field in which the present invention falls is that of dredging of seafloors of surface water and brackish water basins in which polluted precipitates and pollutants which are toxic and/or harmful to the ecosystem and human health human are found.
  • the first system is aimed at small areas that use a machine with a mechanical jib-boom and bucket excavator, while the second system is aimed to large areas that use large machines equipped with a mechanical jib-boom ending with a rotary cutter and an aspirator connected to the same.
  • the main problem that is encountered consists in lifting the substances present on the seafloor with a consequent diffusion, repositioning of the pollutants and re-pollution of the waters for which the pollutants are deposited also in areas close to that in which the dredging is being carried out.
  • the current dredging systems perform a non-selective dredging, so the pollutants are then spread to wider areas.
  • ecobuckets buckets
  • the main object of the present invention is to provide a dredging equipment for seafloors with pollutants and/or toxicants which is free from the above drawback, that is, which prevents the dispersion of pollutants during dredging.
  • a further object of the present invention is to provide a method for dredging the seafloors with pollutants and/or toxicants without a dispersion of pollutants during dredging.
  • a dredging equipment for seafloors with pollutants and/or toxicants is provided as indicated in claim 1.
  • reference numeral 1 indicates a dredging apparatus for a seafloor 2 with pollutants and/or toxicants.
  • Equipment 1 comprises:
  • machine 3 comprises:
  • the sucking device 13 comprises a plurality of pipelines 27 and 28, whose intake port is turned towards seafloor 2.
  • each pipeline 27 and 28 has a first end facing towards seafloor 2 and a second end which channels the sediments collected within a chamber 29 ( figure 8 ) from which means 4 originate, which consist in a pipeline that extends up to the collection center 5.
  • Pipelines 27 and 28 are distributed in an effective manner along the whole area covered by bell 11.
  • first pipelines 27 are close to the lip of bell 11 and a plurality of second pipelines 28 are in the central part of bell 11; the first pipelines 27 being able especially to prevent the dispersion of sediments on the outside of bell 11 and the second pipelines 28 being able to channel the greater part of the sediments towards the collection center 5 through chamber 29 ( figure 8 ) and means 4.
  • the lower ends of pipelines 27 and 28 are provided with respective bars screens 31 ( figure 7 ) able to let through only sediments having pre-established dimensions. In the practice, the bars screens 31 select the type of sediments to be collected according to the dimensions thereof.
  • the sucking device 13 comprises an electric motor 32 for each pipeline 28 which transmits the motion through a belt system 33 to a suction pump 34 installed within each pipeline 28. In this way, it is possible to select which pipelines 28 should suck and the suction power.
  • device 14 comprises a first device for reducing the machine 3 weight before the immersion of machine 3, and a second device for controlling the weight of machine 3, already immersed, for balancing the unbalances taking place during the suction phase.
  • the amount of gas or liquid to be introduced in a plurality of tanks 35 ( figure 4B ) installed inside bell 11 is calculated such as to decrease the weight of the bell on the seafloor while maintaining an overall weight value necessary and sufficient to allow an effective contact of tracks 12 on seafloor 2; the first device therefore consisting of tanks 35.
  • the second device comprises a plurality of tanks 36 ( figure 4B ) which can be filled either with air (via a respective pump 37) to reduce the machine 3 weight or with water (via a respective pump 38) to increase the machine 3 weight.
  • pumps 37 and 38 are equipped with a respective electric motor not shown for simplicity.
  • the electronic unit 8 comprises:
  • the control unit 41 comprises a memory block 45 wherein the various operations carried out are stored area by area and a control block 46 of the various members and devices.
  • the memory block 45 allows storing and comparing the operations carried out at different times in a predetermined area so as to detect the times when polluting sediments are deposited in the same area. In this way it is possible to trace the reasons and the methods of settling of the pollutants.
  • Figure 9 shows a chamber 30 which differs from chamber 40 shown in figure 8 in that it has at least one wall in which a bars screen 49 is formed which allows channeling the water sucked outside.
  • chamber 30 shown in figure 9 can be used only for the seafloors where there are no polluting sediments also due to the fact that they have been sucked in an earlier step.
  • FIGS 1 , 2 and 3 show a crane 50 which supports a mechanical adjustable jib-boom 51 ending with a bucket 52 (commonly called grapple) internal to a bell 53 connected to a suction pipeline 54 which sucks the suspensions of sediments caused by the extraction of the obstacle from the seafloor.
  • this mini-crane is used to remove obstacles on seafloor 2 along the travelling direction.
  • Figure 1 shows an equipment 1 in which an environmental situation is provided with the presence of spaces on the ground, so that the electric power source 6 and the electronic unit 8 are carried by a vehicle 61. Moreover, the collection center 5 is simply a container 62 provided with wheels 63. While figure 2 shows an equipment 1 in which the floating pontoon 64 is the seat of the electric power source 6 of the electronic unit 8 and finally the collection center 5 is fixed.
  • the method of dredging a seafloor 2 with pollutants and/or toxicants includes, once the area to be dredged has been identified:
  • All data are then collected in block 45 so as to define a sheet where the data related to the dredged area are stored to optionally schedule a subsequent intervention and identify the times when the sediments are formed.
  • the machine After the preliminary operations, the machine is deposited on the seafloor and, based on the schedule thereof, it starts sucking in the sediments moving in the area identified with repeated movements so as to dredge by parallel horizontal planes.
  • the sediments collected from the seafloor and channeled to the collection center 5 follow the types identified by the preliminary coring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Disintegrating Or Milling (AREA)
EP14170710.9A 2013-05-30 2014-05-30 Équipement de dragage et procédé pour fonds océaniques ayant des polluants et/ou des substances toxiques Active EP2808452B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000019A ITRN20130019A1 (it) 2013-05-30 2013-05-30 Apparecchiatura e metodo di dragaggio per fondali su cui sono presenti sostanze inquinanti e/o tossiche

Publications (2)

Publication Number Publication Date
EP2808452A1 true EP2808452A1 (fr) 2014-12-03
EP2808452B1 EP2808452B1 (fr) 2016-07-06

Family

ID=48793467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14170710.9A Active EP2808452B1 (fr) 2013-05-30 2014-05-30 Équipement de dragage et procédé pour fonds océaniques ayant des polluants et/ou des substances toxiques

Country Status (2)

Country Link
EP (1) EP2808452B1 (fr)
IT (1) ITRN20130019A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2684359A1 (es) * 2017-03-31 2018-10-02 Nodosa, S.L. Equipo sumergido de dragado autónomo
IT201900000088A1 (fr) 2017-01-07 2019-01-07
IT202000001489A1 (it) 2020-01-27 2021-07-27 Paolo Giglioli Apparecchiatura di protezione anti-insabbiamento di una struttura in mare
CN114045894A (zh) * 2021-11-16 2022-02-15 深圳技术大学 一种用于水利工程清淤施工的自动化设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62146328A (ja) * 1985-12-20 1987-06-30 Nodatsuku Kk 水底清掃車
US6017400A (en) * 1997-05-15 2000-01-25 Orange County Water District Method and system for cleaning a water basin floor
US20120216435A1 (en) * 2011-02-25 2012-08-30 Chan-Hui Wen Mud/sludge removing device
WO2012158028A1 (fr) * 2011-05-13 2012-11-22 Ihc Holland Ie B.V. Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62146328A (ja) * 1985-12-20 1987-06-30 Nodatsuku Kk 水底清掃車
US6017400A (en) * 1997-05-15 2000-01-25 Orange County Water District Method and system for cleaning a water basin floor
US20120216435A1 (en) * 2011-02-25 2012-08-30 Chan-Hui Wen Mud/sludge removing device
WO2012158028A1 (fr) * 2011-05-13 2012-11-22 Ihc Holland Ie B.V. Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900000088A1 (fr) 2017-01-07 2019-01-07
ES2684359A1 (es) * 2017-03-31 2018-10-02 Nodosa, S.L. Equipo sumergido de dragado autónomo
IT202000001489A1 (it) 2020-01-27 2021-07-27 Paolo Giglioli Apparecchiatura di protezione anti-insabbiamento di una struttura in mare
CN114045894A (zh) * 2021-11-16 2022-02-15 深圳技术大学 一种用于水利工程清淤施工的自动化设备

Also Published As

Publication number Publication date
EP2808452B1 (fr) 2016-07-06
ITRN20130019A1 (it) 2014-12-01

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