EP2101005B1 - Dredging machine and method of dredging - Google Patents

Dredging machine and method of dredging Download PDF

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Publication number
EP2101005B1
EP2101005B1 EP09154545.9A EP09154545A EP2101005B1 EP 2101005 B1 EP2101005 B1 EP 2101005B1 EP 09154545 A EP09154545 A EP 09154545A EP 2101005 B1 EP2101005 B1 EP 2101005B1
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EP
European Patent Office
Prior art keywords
movable body
gallery
sediment
machine
mobile
Prior art date
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Not-in-force
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EP09154545.9A
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German (de)
French (fr)
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EP2101005A3 (en
EP2101005A2 (en
Inventor
Daniel Perpezat
Jean-Marc Sabatie
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Soletanche Freyssinet SA
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Soletanche Freyssinet SA
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Publication of EP2101005A2 publication Critical patent/EP2101005A2/en
Publication of EP2101005A3 publication Critical patent/EP2101005A3/en
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Publication of EP2101005B1 publication Critical patent/EP2101005B1/en
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002—Cleaning sewer pipes by mechanical means
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the present invention relates to a machine for cleaning sediments or the like deposited on the bottom of a gallery, for example a sewer, and a method of cleaning said sediments.
  • the machine object of the invention relates more particularly to a system that allows the cleaning of emissaries of a sewerage network carrying wastewater or the like. As time passed, materials settled at the bottom of the galleries that make up these sewers. The operator periodically entrusts to companies cleaning works of said galleries.
  • the document FR 2,693,220 shows a cleaning machine formed of two mobiles (13) and (32) in which the cleaning must be interrupted during the emptying of a second mobile (32), to avoid the transfer of sediment beyond a first mobile ( 13). So the cleaning process is interrupted.
  • a first object of the invention is to provide a machine for cleaning sediments or the like which make it possible to avoid the disadvantages mentioned above.
  • the complete machine is constituted by a first mobile which will be called after cleaning device and who performs the cleansing operation itself and which is provided with buffer storage means or temporary sediment removed at the bottom of the gallery, it is possible that the machine has a second mobile called marinating machine that can autonomously receive periodically stored sediment or the like temporarily on the cleaning machine and transport them to the area of the gallery or sewer corresponding to the evacuation of the sediments. It is of course understood that while the mariner makes its round trips, the cleaning machine can work permanently through the presence of buffer or temporary storage means called first storage means.
  • the first moving means are first motor means mounted on the first mobile or cleaning device.
  • the second moving means are also second motor means mounted on the second mobile or marinating machine.
  • the first transfer means comprise a loading screw arranged in line with the scraping means and / or a conveyor whose one end cooperates with the loading screw or the scraper device and the second end is disposed above first storage means.
  • said first storage means are arranged at the rear of the first mobile.
  • the second transfer means are mounted on said first mobile.
  • a second object of the invention is to provide a sediment cleaning process including but not exclusively capable of being implemented using the machine defined above.
  • the cleaning machine consists essentially of a cleaning machine 10 and a pickling machine 12.
  • the cleaning machine is the first mobile and the pickling machine is the second mobile .
  • the cleaning device 10 comprises a support frame 14 equipped with a front wheel set 16 and, in the particular example described, two pairs of rear wheels 18 and 20.
  • a cleaning device 24 which is essentially constituted by a cleaning or scraping blade 26 better visible on the Figure 2A .
  • the shape of the cutting portion of the cleaning blade 26 is shaped to the shape of the lower portion 28 of the wall 30 of the gallery or sewer 32 in which the cleaning machine must intervene.
  • the cleaning device 24 may comprise a raised position standby and a low operating position.
  • a cylinder 34 allows to move from one to the other of these positions.
  • the cleaning device 24 is associated with a first means for transferring sediments and other debris recovered by the blade 26 which bears the general reference 36.
  • the first transfer device 36 is constituted by a loading screw 38 arranged in connection with the cleaning blade 26.
  • the loading screw 38 is preferably constituted by two end portions 38a and 38b each provided with a blade 37 and a central portion 38c without blades.
  • the function of the loading screw 38 is firstly due to the presence of the blades 37 to cut the pieces of sediment torn from the bottom of the gallery and secondly to bring back to the center these pieces of cut sediment.
  • a jack 35 moves the screw 38 from a raised position to a lowered working position.
  • the first transfer means 36 also comprises a conveyor 40 which has a first end 40a facing the loading screw 38 and preferably secured to the scraper blade 26 and a second end 40b.
  • both the loading screw 38 and the conveyor 40 are mounted on the frame 14 of the cleaning machine.
  • the cleaning machine also has at its rear end 42 a buffer hopper 44 which is the first storage means. This portion which is secured to the rear wheel trains 18 and 20 is preferably articulated about a vertical axis 46 relative to the front part of the cleaning machine 10. This joint 46 allows to conform the cleaning machine 10
  • the buffer hopper 44 preferably has an inclined bottom 48.
  • the cleaning apparatus 10 also comprises second transfer means constituted by the conveyor 50.
  • This conveyor 50 has a first part 50a which is arranged inside the hopper 44 near its bottom 48 and a second portion 50b external thereto. The end 50c of the conveyor 50 is disposed well beyond the rear end 44a of the hopper 44.
  • the wheel trains 16, 18 and 20 are pivotally mounted about axes which are angled relative to the horizontal. This arrangement makes it possible to conform the displacement of the cleaning apparatus to the shape of the bottom 28 of the wall 30 of the gallery.
  • the cleaning apparatus 10 of course also includes a cabin 52 for controlling the vehicle, motors not shown to drive the wheel trains, these engines being for example hydraulic.
  • the frame 14 also carries means for supplying pressurized fluid to control the rotation of the loading screw 38, the cylinders 34 and 35 for modifying the position of the cleaning blade 26, and the screw 38, as well as the conveyors 40 and 50.
  • the cleaning machine also comprises a second mobile which is constituted by the pickling machine 12 whose function is as it was said to allow the transfer of sediment between the cleaning machine 10 and an unloading area provided in the gallery.
  • the pickling machine 12 consists essentially of a frame 52 equipped for example with four sets of wheels 54, 56, 58 and 60.
  • These wheels of course also have rotation axes inclined relative to the horizontal to bear against the walls of the gallery. Preferably, these wheels bear against this wall in a position farther from the bottom of the gallery than the wheel trains 16 to 20 of the cleaning apparatus 10. In fact, this gives better running conditions for the wheel. marinating machine since the bottom of the gallery may present inequalities. It is understood that this arrangement is particularly interesting since if the cleaning machine 10 moves very slowly and only travels the distance corresponding to the gallery length to be cleaned, the pickling machine 12 is made to make a large number back and forth between the cleaning machine 10 and the unloading point.
  • the pickling machine 12 is equipped with a storage bin 62 which is preferably removable relative to the frame 52 of the pickling machine 12.
  • the pickling machine 12 is also equipped with a driving cabin 64 and driving motors of at least some of the wheel trains 54 to 60.
  • These wheels may be either standard wheels or roller wheels of the type described in the French patent FR 2 808 491 in the name of the plaintiff.
  • the speed of movement of the cleaning machine 10 during operation is of course very limited to obtain effective cleaning of the gallery. For example, it is worth 1 or 2m / min.
  • the machine of marinating 12, to go back and forth can of course have a higher speed of travel, for example of the order of 15 km / h.
  • the volume capacity of the hopper 44 of the cleaning machine 10 is defined suitably the volume capacity of the hopper 44 of the cleaning machine 10.
  • This volume capacity must be at least equal to the amount of sediment extracted by the cleaning device 10 when the mariner 12 travels the return trip between the cleaning machine 10 and the point of unloading sediment when the cleaning machine 10 is itself at the maximum distance from the unloading point .
  • the first storage means thus constitute a buffer zone for temporary retention of cleaning products which thus makes the two mobile machines autonomous. It is also of course that the capacity of the bucket 62 is adapted to that of the hopper 44.
  • the sediments are detached by the cleaning blade 26, they are transferred to the storage hopper 44 using the loading screw 38 and the first conveyor 40.
  • the marinating machine 12 which is disposed at the rear of the cleaning machine 10 is filled with the sediment via the second conveyor 50. This fills the removable bucket 62 of the pickling machine 12
  • the conveyor 50 is stopped and the pickling machine 12 moves to the unloading point P corresponding to an access 64 in the gallery 32.
  • lifting means 66 can extract the removable bucket 62 full of sediment or cuttings and replace it with an empty bucket 62 which is placed on the frame of the pickling machine 12. This one then returns to the machine of curag 10 and it follows the slow progress of the cleaning machine 10.
  • the conveyor 40 continues to transfer sediments into the hopper 44.
  • the total amount of sediment transferred into the bucket 62 may therefore be that which was in the hopper at the beginning of the increased transfer of the amount of sediment transferred into the hopper during this transfer operation.
  • the pickling machine 12 when the cleaning machine 10 is far from the maximum distance to which it must intervene, with respect to the point of unloading, the journeys made by the pickling machine 12 are relatively small and, outside the periods of back and forth, the picking machine follows the cleaning machine. On the other hand, when the cleaning apparatus 10 is close to the maximum planned sewage treatment distance, the pickling machine 12 remains at the station with the cleaning machine only substantially for the time of carrying out the transfer of the sewage treatment equipment. sediment or excavation of the hopper 44 to the bucket 62 using the conveyor 50.
  • the mobiles constituted by the cleaning machine 10 and the pickling machine 12 may not be self-propelled and be driven by external propulsion means.
  • the cleaning machine 10 and the mariner 12 may be self-propelled but controlled automatically remotely.
  • these second transfer means are mounted on the marinating machine.
  • these second transfer means could consist, for example, of a suction line or a screw system for transferring sediments from the hopper 44 to the bucket 62.
  • the pickling machine 12 can also be used to transport fuel for the cleaning machine 10, personnel, or different maintenance elements of the cleaning machine.

Description

La présente invention a pour objet une machine de curage des sédiments ou analogues déposés sur le fond d'une galerie, par exemple un égout, et un procédé de curage desdits sédiments.The present invention relates to a machine for cleaning sediments or the like deposited on the bottom of a gallery, for example a sewer, and a method of cleaning said sediments.

Le curage, c'est-à-dire l'enlèvement des sédiments ou autres matériaux indésirables qui se déposent sur le fond des égouts ou plus généralement de galeries, soulève un certain nombre de problèmes. La machine objet de l'invention concerne plus particulièrement un système qui permet d'effectuer le curage d'émissaires d'un réseau d'assainissement véhiculant des eaux usées ou analogues. Au fur et à mesure de l'écoulement du temps, des matériaux se sont sédimentés au fond des galeries constituant ces égouts. L'exploitant confie périodiquement à des entreprises des travaux de curage desdites galeries.Cleaning, that is to say the removal of sediments or other undesirable materials that settle on the bottom of the sewers or more generally galleries, raises a certain number of problems. The machine object of the invention relates more particularly to a system that allows the cleaning of emissaries of a sewerage network carrying wastewater or the like. As time passed, materials settled at the bottom of the galleries that make up these sewers. The operator periodically entrusts to companies cleaning works of said galleries.

Le curage de telles galeries se réalise actuellement le plus souvent selon la technique suivante :

  • on réalise un barrage pour pouvoir mettre à sec la galerie à curer ; et
  • on réalise le curage par une chargeuse thermique, par exemple du type minier, munie d'un godet équipé d'une lame de raclage du fond de la galerie. Une fois que le godet est rempli, la chargeuse doit faire des allers et retours entre le front de curage et un puits d'accès à la surface où le déchargement du godet peut être réalisé. Le godet de la chargeuse est vidé en remplissant une benne qui est remontée par une grue pour être évacuée. Une telle solution est décrite dans le brevet français 2 701 278 .
The cleaning of such galleries is currently carried out most often according to the following technique:
  • a dam is made to dry the gallery to be cleaned; and
  • the cleaning is carried out by a heat loader, for example of the mining type, provided with a bucket equipped with a scraping blade of the bottom of the gallery. Once the bucket is filled, the loader has to go back and forth between the cleaning front and a surface access well where the unloading of the bucket can be made. The bucket of the loader is emptied by filling a bucket which is raised by a crane to be evacuated. Such a solution is described in the French patent 2,701,278 .

L'inconvénient principal d'une telle machine de curage d'égouts est que, pendant la phase de roulage de l'engin de curage, le curage est interrompu. On comprend que plus la distance entre le front de curage et le puits d'évacuation des sédiments récupérés augmente, plus la productivité de la machine diminue.The main disadvantage of such a sewer cleaning machine is that during the running phase of the cleaning machine, cleaning is interrupted. It is understood that the greater the distance between the cleaning front and the evacuation well of the recovered sediments, the more the productivity of the machine decreases.

En outre, le type d'engin décrit dans l'état de la technique antérieure consiste le plus souvent dans une machine du type pelle mécanique à chenille classique et impose que l'on mette à sec la galerie qui doit être traitée. On comprend que l'obligation qu'a la machine de faire les allers et retours entre le front de curage et la zone de déchargement fait que de longues périodes se déroulent sans que la machine de curage ne soit opérationnelle. On a donc dans ce cas une diminution très importante du rendement de la machine. Le document FR 2 693 220 montre une machine de curage formée de deux mobiles (13) et (32) dans laquelle le curage doit être interrompu pendant le vidange d'un deuxième mobile (32), pour éviter le transfert des sédiments au-delà d'un premier mobile (13). Donc, le processus de curage est interrompu.In addition, the type of gear described in the state of the prior art is most often in a conventional crawler excavator type machine and requires that the gallery to be treated is dry. We understand that the obligation of the machine to go back and forth between the cleaning front and the unloading area means that long periods of time take place without the cleaning machine is operational. There is therefore in this case a very significant decrease in the efficiency of the machine. The document FR 2,693,220 shows a cleaning machine formed of two mobiles (13) and (32) in which the cleaning must be interrupted during the emptying of a second mobile (32), to avoid the transfer of sediment beyond a first mobile ( 13). So the cleaning process is interrupted.

Un premier objet de l'invention est de fournir une machine de curage de sédiments ou analogues qui permettent d'éviter les inconvénients rappelés ci-dessus.A first object of the invention is to provide a machine for cleaning sediments or the like which make it possible to avoid the disadvantages mentioned above.

Pour atteindre ce but selon l'invention, la machine de curage des sédiments ou analogues déposés sur le fond d'une galerie est caractérisée en ce qu'elle comprend :

  • un premier mobile apte à se déplacer sur la partie inférieure de la paroi de la galerie, ledit premier mobile présentant un avant et un arrière ;
  • des premiers moyens de déplacement pour déplacer ledit premier mobile sur la partie inférieure de la paroi de la galerie ;
  • des moyens de raclage, pour détacher les sédiments du fond de la galerie, montés à l'avant dudit premier mobile ;
  • des premiers moyens de stockage montés sur ledit premier mobile ;
  • des premiers moyens de transfert pour transférer les sédiments détachés dans lesdits premiers moyens de stockage ;
  • des deuxièmes moyens de transfert pour transférer les sédiments stockés dans lesdits premiers moyens de stockage vers l'extérieur dudit premier mobile ;
  • un deuxième mobile, distinct du premier mobile, apte à se déplacer sur la partie inférieure de la paroi de la galerie ;
  • des deuxièmes moyens de déplacement pour déplacer ledit deuxième mobile sur la partie inférieure de la paroi de la galerie ; et
  • des deuxièmes moyens de stockage montés sur ledit deuxième mobile pour recueillir les sédiments transférés vers l'extérieur du premier mobile par lesdits deuxièmes moyens de transfert.
To achieve this object according to the invention, the machine for cleaning sediments or the like deposited on the bottom of a gallery is characterized in that it comprises:
  • a first mobile adapted to move on the lower part of the wall of the gallery, said first mobile having a front and a rear;
  • first moving means for moving said first mobile on the lower part of the wall of the gallery;
  • scraping means, for detaching the sediments from the bottom of the gallery, mounted in front of said first mobile;
  • first storage means mounted on said first mobile;
  • first transfer means for transferring the detached sediments into said first storage means;
  • second transfer means for transferring the sediments stored in said first storage means to the outside of said first mobile;
  • a second mobile, distinct from the first mobile, able to move on the lower part of the wall of the gallery;
  • second moving means for moving said second mobile on the lower part of the wall of the gallery; and
  • second storage means mounted on said second mobile to collect the sediments transferred to the outside of the first mobile by said second transfer means.

On comprend que du fait que la machine complète est constituée par un premier mobile qui sera appelé ultérieurement engin de curage et qui réalise l'opération de curage proprement dite et qui est munie de moyens de stockage tampon ou temporaire des sédiments enlevés au fond de la galerie, il est possible que la machine comporte un deuxième mobile appelé engin de marinage qui peut de façon autonome recevoir périodiquement les sédiments ou analogues stockés temporairement sur l'engin de curage et les transporter jusque dans la zone de la galerie ou de l'égout correspondant à l'évacuation des sédiments. On comprend bien sûr que pendant que l'engin de marinage réalise ses allers et retours, l'engin de curage peut travailler en permanence grâce à la présence des moyens de stockage tampon ou temporaire appelés premiers moyens de stockage.It is understood that because the complete machine is constituted by a first mobile which will be called after cleaning device and who performs the cleansing operation itself and which is provided with buffer storage means or temporary sediment removed at the bottom of the gallery, it is possible that the machine has a second mobile called marinating machine that can autonomously receive periodically stored sediment or the like temporarily on the cleaning machine and transport them to the area of the gallery or sewer corresponding to the evacuation of the sediments. It is of course understood that while the mariner makes its round trips, the cleaning machine can work permanently through the presence of buffer or temporary storage means called first storage means.

De préférence, les premiers moyens de déplacement sont des premiers moyens moteurs montés sur le premier mobile ou engin de curage.Preferably, the first moving means are first motor means mounted on the first mobile or cleaning device.

De préférence également, les deuxièmes moyens de déplacement sont également des deuxièmes moyens moteurs montés sur le deuxième mobile ou engin de marinage.Preferably also, the second moving means are also second motor means mounted on the second mobile or marinating machine.

De préférence également, les premiers moyens de transfert comprennent une vis de chargement disposée au droit des moyens de raclage et/ou un convoyeur dont une première extrémité coopère avec la vis de chargement ou le dispositif de raclage et la deuxième extrémité est disposée au-dessus des premiers moyens de stockage.Also preferably, the first transfer means comprise a loading screw arranged in line with the scraping means and / or a conveyor whose one end cooperates with the loading screw or the scraper device and the second end is disposed above first storage means.

De préférence également, lesdits premiers moyens de stockage sont disposés à l'arrière du premier mobile.Also preferably, said first storage means are arranged at the rear of the first mobile.

De préférence encore, les deuxièmes moyens de transfert sont montés sur ledit premier mobile.More preferably, the second transfer means are mounted on said first mobile.

Un deuxième objet de l'invention est de proposer un procédé de curage des sédiments notamment mais non exclusivement susceptible d'être mis en oeuvre à l'aide de la machine définie ci-dessus.A second object of the invention is to provide a sediment cleaning process including but not exclusively capable of being implemented using the machine defined above.

Selon l'invention, le procédé de curage des sédiments ou analogues déposés sur le fond d'une galerie est caractérisé en ce qu'il comprend les étapes suivantes :

  • on déplace sur la partie inférieure de la galerie un premier mobile muni de moyens de curage ;
  • on stocke sur ledit mobile les sédiments au fur et à mesure de leur enlèvement ;
  • on déplace sur la partie inférieure de la paroi de la galerie un deuxième mobile ;
  • on transfère périodiquement les sédiments stockés sur le premier mobile vers le deuxième mobile en maintenant le deuxième mobile à proximité du premier mobile ;
  • on déplace le deuxième mobile entre la position à proximité du premier mobile, après transfert des sédiments, jusqu'à une deuxième position fixe de déchargement des sédiments stockés sur ledit deuxième mobile vers l'extérieur de la galerie ; et
  • on ramène ledit deuxième mobile vers sa position à proximité du premier mobile ;
par quoi le premier mobile peut réaliser l'opération de curage de façon continue, y compris pendant les phases de déchargement des sédiments.According to the invention, the method of cleaning sediments or the like deposited on the bottom of a gallery is characterized in that it comprises the following steps:
  • a first mobile equipped with cleaning means is moved on the lower part of the gallery;
  • these sediments are stored on said mobile as they are removed;
  • a second mobile is moved on the lower part of the wall of the gallery;
  • periodically transferring sediments stored on the first mobile to the second mobile holding the second mobile near the first mobile;
  • moving the second mobile between the position near the first mobile, after transfer of sediment, to a second fixed position of unloading sediment stored on said second mobile to the outside of the gallery; and
  • said second mobile is brought back to its position near the first mobile;
whereby the first mobile can perform the cleaning operation continuously, including during the unloading phases of the sediments.

D'autres caractéristiques et avantages de l'invention apparaîtront mieux à la lecture de la description qui suit d'un mode de réalisation de l'invention donné à titre d'exemple non limitatif.Other features and advantages of the invention will appear better on reading the following description of an embodiment of the invention given by way of non-limiting example.

La description se réfère aux figures annexées, sur lesquelles :

  • la figure 1 est une vue de côté de l'ensemble de la machine ;
  • la figure 2A est une vue de la machine selon les flèches A-A, la lame de raclage et la vis de chargement étant en position relevée ;
  • la figure 2B est une vue de l'engin de curage selon les flèches B_B ;
  • la figure 2C est une vue de l'engin de marinage selon les flèches C-C de la figure 1 ; et
  • les figures 3A et 3B sont des dessins simplifiés illustrant la mise en oeuvre du procédé objet de l'invention.
The description refers to the appended figures, in which:
  • the figure 1 is a side view of the whole machine;
  • the Figure 2A is a view of the machine according to the arrows AA, the scraping blade and the loading screw being in the raised position;
  • the Figure 2B is a view of the cleaning machine according to arrows B_B;
  • the Figure 2C is a view of the mariner according to the arrows CC of the figure 1 ; and
  • the Figures 3A and 3B are simplified drawings illustrating the implementation of the method which is the subject of the invention.

En se référant tout d'abord à la figure 1, on va décrire la structure générale de la machine de curage. Ainsi qu'on l'a déjà indiqué, la machine de curage est constituée essentiellement par un engin de curage 10 et par un engin de marinage 12. L'engin de curage constitue le premier mobile et l'engin de marinage constitue le deuxième mobile. L'engin de curage 10 comporte un châssis porteur 14 équipé d'un train de roues avant 16 et, dans l'exemple particulier décrit, de deux paires de roues arrière 18 et 20. A l'avant 22 de l'engin de curage, on trouve un dispositif de curage 24 qui est essentiellement constitué par une lame de curage ou de raclage 26 mieux visible sur la figure 2A. Comme le montre cette figure, la forme de la partie tranchante de la lame de curage 26 est conformée à la forme de la partie inférieure 28 de la paroi 30 de la galerie ou de l'égout 32 dans lequel la machine de curage doit intervenir. De préférence, le dispositif de curage 24 peut comporter une position relevée d'attente et une position basse de fonctionnement. Un vérin 34 permet de passer de l'une à l'autre de ces positions.Referring first to the figure 1 we will describe the general structure of the cleaning machine. As already indicated, the cleaning machine consists essentially of a cleaning machine 10 and a pickling machine 12. The cleaning machine is the first mobile and the pickling machine is the second mobile . The cleaning device 10 comprises a support frame 14 equipped with a front wheel set 16 and, in the particular example described, two pairs of rear wheels 18 and 20. At the front 22 of the cleaning machine , there is a cleaning device 24 which is essentially constituted by a cleaning or scraping blade 26 better visible on the Figure 2A . As shown in this figure, the shape of the cutting portion of the cleaning blade 26 is shaped to the shape of the lower portion 28 of the wall 30 of the gallery or sewer 32 in which the cleaning machine must intervene. Preferably, the cleaning device 24 may comprise a raised position standby and a low operating position. A cylinder 34 allows to move from one to the other of these positions.

Au dispositif de curage 24 est associé un premier moyen de transfert des sédiments et autres débris récupérés par la lame 26 qui porte la référence générale 36. De préférence, le premier dispositif de transfert 36 est constitué par une vis de chargement 38 disposée en relation avec la lame de curage 26. La vis de chargement 38 est constituée de préférence par deux portions d'extrémité 38a et 38b munies chacune d'une pale 37 et d'une partie centrale 38c dépourvue de pales. La fonction de la vis de chargement 38 est d'une part grâce à la présence des pales 37 de découper les morceaux de sédiments arrachés au fond de la galerie et d'autre part de ramener vers le centre ces morceaux de sédiments découpés. De préférence, un vérin 35 permet de déplacer la vis 38 d'une position relevée à une position abaissée de travail.The cleaning device 24 is associated with a first means for transferring sediments and other debris recovered by the blade 26 which bears the general reference 36. Preferably, the first transfer device 36 is constituted by a loading screw 38 arranged in connection with the cleaning blade 26. The loading screw 38 is preferably constituted by two end portions 38a and 38b each provided with a blade 37 and a central portion 38c without blades. The function of the loading screw 38 is firstly due to the presence of the blades 37 to cut the pieces of sediment torn from the bottom of the gallery and secondly to bring back to the center these pieces of cut sediment. Preferably, a jack 35 moves the screw 38 from a raised position to a lowered working position.

Le premier moyen de transfert 36 comporte également un convoyeur 40 qui comporte une première extrémité 40a en regard de la vis de chargement 38 et de préférence solidaire de la lame 26 de raclage et une deuxième extrémité 40b. Bien entendu, aussi bien la vis de chargement 38 que le convoyeur 40 sont montés sur le châssis 14 de l'engin de curage. L'engin de curage comporte également à son extrémité arrière 42 une trémie tampon 44 qui constitue les premiers moyens de stockage. Cette partie qui est solidaire des trains de roues arrière 18 et 20 est de préférence articulée autour d'un axe vertical 46 par rapport à la partie avant de l'engin de curage 10. Cette articulation 46 permet de conformer l'engin de curage 10 au tracé de la galerie 30. De préférence, la trémie tampon 44 comporte un fond incliné 48. L'engin de curage 10 comporte également des deuxièmes moyens de transfert constitués par le convoyeur 50. Ce convoyeur 50 a une première partie 50a qui est disposée à l'intérieur de la trémie 44 à proximité de son fond 48 et une deuxième partie 50b extérieure à celle-ci. L'extrémité 50c du convoyeur 50 est disposée largement au-delà de l'extrémité arrière 44a de la trémie 44.The first transfer means 36 also comprises a conveyor 40 which has a first end 40a facing the loading screw 38 and preferably secured to the scraper blade 26 and a second end 40b. Of course, both the loading screw 38 and the conveyor 40 are mounted on the frame 14 of the cleaning machine. The cleaning machine also has at its rear end 42 a buffer hopper 44 which is the first storage means. This portion which is secured to the rear wheel trains 18 and 20 is preferably articulated about a vertical axis 46 relative to the front part of the cleaning machine 10. This joint 46 allows to conform the cleaning machine 10 The buffer hopper 44 preferably has an inclined bottom 48. The cleaning apparatus 10 also comprises second transfer means constituted by the conveyor 50. This conveyor 50 has a first part 50a which is arranged inside the hopper 44 near its bottom 48 and a second portion 50b external thereto. The end 50c of the conveyor 50 is disposed well beyond the rear end 44a of the hopper 44.

Comme on le voit mieux sur la figure 2A, les trains de roues 16, 18 et 20 sont montés pivotants autour d'axes qui sont angulés par rapport à l'horizontale. Cette disposition permet de conformer le déplacement de l'engin de curage à la forme du fond 28 de la paroi 30 de la galerie.As we see better on the Figure 2A , the wheel trains 16, 18 and 20 are pivotally mounted about axes which are angled relative to the horizontal. This arrangement makes it possible to conform the displacement of the cleaning apparatus to the shape of the bottom 28 of the wall 30 of the gallery.

L'engin de curage 10 comporte bien sûr également une cabine 52 pour le pilotage de l'engin, des moteurs non représentés pour entraîner les trains de roues, ces moteurs étant par exemple hydrauliques. Le châssis 14 porte également des moyens d'alimentation en fluide sous pression pour commander la rotation de la vis de chargement 38, les vérins 34 et 35 de modification de la position de la lame de curage 26, et de la vis 38, ainsi que les convoyeurs 40 et 50.The cleaning apparatus 10 of course also includes a cabin 52 for controlling the vehicle, motors not shown to drive the wheel trains, these engines being for example hydraulic. The frame 14 also carries means for supplying pressurized fluid to control the rotation of the loading screw 38, the cylinders 34 and 35 for modifying the position of the cleaning blade 26, and the screw 38, as well as the conveyors 40 and 50.

La machine de curage comporte également un deuxième mobile qui est constitué par l'engin de marinage 12 dont la fonction est comme on l'a indiqué de permettre le transfert des sédiments entre l'engin de curage 10 et une zone de déchargement prévue dans la galerie. L'engin de marinage 12 est constitué essentiellement par un châssis 52 équipé par exemple de quatre trains de roues 54, 56, 58 et 60.The cleaning machine also comprises a second mobile which is constituted by the pickling machine 12 whose function is as it was said to allow the transfer of sediment between the cleaning machine 10 and an unloading area provided in the gallery. The pickling machine 12 consists essentially of a frame 52 equipped for example with four sets of wheels 54, 56, 58 and 60.

Ces roues ont bien sûr également des axes de rotation inclinés par rapport à l'horizontal pour venir en appui sur les parois de la galerie. De préférence, ces roues viennent en appui sur cette paroi dans une position plus éloignée du fond de la galerie que les trains de roues 16 à 20 de l'engin de curage 10. En effet, on obtient ainsi de meilleures conditions de roulement de l'engin de marinage puisque le fond de la galerie peut présenter des inégalités. On comprend que cette disposition est particulièrement intéressante puisque si l'engin de curage 10 ne se déplace que très lentement et ne parcourt que la distance correspondant à la longueur de galerie à curer, l'engin de marinage 12 est amené à faire un grand nombre d'allers et retours entre l'engin de curage 10 et le point de déchargement. L'engin de marinage 12 est équipé d'une benne de stockage 62 qui est de préférence amovible par rapport au châssis 52 de l'engin de marinage 12. L'engin de marinage 12 est également équipé d'une cabine de pilotage 64 et de moteurs d'entraînement d'au moins certains des trains de roues 54 à 60.These wheels of course also have rotation axes inclined relative to the horizontal to bear against the walls of the gallery. Preferably, these wheels bear against this wall in a position farther from the bottom of the gallery than the wheel trains 16 to 20 of the cleaning apparatus 10. In fact, this gives better running conditions for the wheel. marinating machine since the bottom of the gallery may present inequalities. It is understood that this arrangement is particularly interesting since if the cleaning machine 10 moves very slowly and only travels the distance corresponding to the gallery length to be cleaned, the pickling machine 12 is made to make a large number back and forth between the cleaning machine 10 and the unloading point. The pickling machine 12 is equipped with a storage bin 62 which is preferably removable relative to the frame 52 of the pickling machine 12. The pickling machine 12 is also equipped with a driving cabin 64 and driving motors of at least some of the wheel trains 54 to 60.

Ces roues peuvent être soit des roues standard, soit des roues à rouleaux du type décrit dans le brevet français FR 2 808 491 au nom de la demanderesse.These wheels may be either standard wheels or roller wheels of the type described in the French patent FR 2 808 491 in the name of the plaintiff.

La vitesse de déplacement de l'engin de curage 10 en cours d'opération est bien sûr très limitée pour obtenir un curage efficace de la galerie. Par exemple, elle vaut 1 ou 2m/mn. En revanche, l'engin de marinage 12, pour faire ses allers et retours, peut bien sûr avoir une vitesse de déplacement plus élevée, par exemple de l'ordre de 15 km/h.The speed of movement of the cleaning machine 10 during operation is of course very limited to obtain effective cleaning of the gallery. For example, it is worth 1 or 2m / min. In contrast, the machine of marinating 12, to go back and forth, can of course have a higher speed of travel, for example of the order of 15 km / h.

Pour obtenir une optimisation du fonctionnement de la machine de curage, il est souhaitable de définir convenablement la capacité volumique de la trémie 44 de l'engin de curage 10. Cette capacité volumique doit être au moins égale à la quantité de sédiments extraits par l'engin de curage 10 lorsque l'engin de marinage 12 parcourt le trajet aller et retour entre l'engin de curage 10 et le point de déchargement des sédiments lorsque l'engin de curage 10 est lui-même à la distance maximale du point de déchargement. Les premiers moyens de stockage (la trémie 44) constituent ainsi une zone tampon de rétention temporaire des produits de curage qui rend ainsi autonomes les deux engins mobiles. Il faut également bien sûr que la capacité de la benne 62 soit adaptée à celle de la trémie 44.For an optimization of the operation of the cleaning machine, it is desirable to define suitably the volume capacity of the hopper 44 of the cleaning machine 10. This volume capacity must be at least equal to the amount of sediment extracted by the cleaning device 10 when the mariner 12 travels the return trip between the cleaning machine 10 and the point of unloading sediment when the cleaning machine 10 is itself at the maximum distance from the unloading point . The first storage means (the hopper 44) thus constitute a buffer zone for temporary retention of cleaning products which thus makes the two mobile machines autonomous. It is also of course that the capacity of the bucket 62 is adapted to that of the hopper 44.

En se référant maintenant aux figures 3A et 3B, on va décrire succinctement le mode d'utilisation de la machine de curage selon l'invention.Referring now to Figures 3A and 3B , the mode of use of the cleaning machine according to the invention will be described briefly.

Au fur et à mesure que les sédiments sont détachés par la lame de curage 26, ils sont transférés vers la trémie de stockage 44 à l'aide de la vis de chargement 38 et du premier convoyeur 40. Lorsque la trémie 44 est suffisamment pleine de sédiments, l'engin de marinage 12 qui est disposé à l'arrière de l'engin de curage 10 est rempli avec les sédiments par l'intermédiaire du deuxième convoyeur 50. On remplit ainsi la benne amovible 62 de l'engin de marinage 12. Lorsque cette opération est réalisée, le convoyeur 50 est arrêté et l'engin de marinage 12 se déplace jusqu'au point de déchargement P correspondant à un accès 64 dans la galerie 32. Lorsque l'engin de marinage 12 est arrivé en regard de l'accès 64, des moyens de levage 66 permettent d'extraire la benne amovible 62 pleine de sédiments ou déblais et de remplacer celle-ci par une benne vide 62 qui est mise en place sur le châssis de l'engin de marinage 12. Celui-ci retourne alors vers l'engin de curage 10 et il suit la progression lente de l'engin de curage 10. Lorsque la trémie 44 est remplie, on procède à nouveau au déchargement de celle-ci dans la benne 62 de l'engin de marinage 12 comme on l'a expliqué précédemment. Durant cette opération, le convoyeur 40 continue à transférer des sédiments dans la trémie 44. La quantité totale de sédiments transférée dans la benne 62 peut donc être celle qui était dans la trémie au début du transfert augmentée de la quantité de sédiments transférée dans la trémie durant cette opération de transfert.As the sediments are detached by the cleaning blade 26, they are transferred to the storage hopper 44 using the loading screw 38 and the first conveyor 40. When the hopper 44 is sufficiently full of sediment, the marinating machine 12 which is disposed at the rear of the cleaning machine 10 is filled with the sediment via the second conveyor 50. This fills the removable bucket 62 of the pickling machine 12 When this operation is carried out, the conveyor 50 is stopped and the pickling machine 12 moves to the unloading point P corresponding to an access 64 in the gallery 32. When the pickling machine 12 arrived opposite access 64, lifting means 66 can extract the removable bucket 62 full of sediment or cuttings and replace it with an empty bucket 62 which is placed on the frame of the pickling machine 12. This one then returns to the machine of curag 10 and it follows the slow progress of the cleaning machine 10. When the hopper 44 is filled, it is again unloaded in the bucket 62 of the pickling machine 12 as explained previously. During this operation, the conveyor 40 continues to transfer sediments into the hopper 44. The total amount of sediment transferred into the bucket 62 may therefore be that which was in the hopper at the beginning of the increased transfer of the amount of sediment transferred into the hopper during this transfer operation.

On comprend que lorsque l'engin de curage 10 est éloigné de la distance maximale à laquelle il doit intervenir, par rapport au point de déchargement, les trajets réalisés par l'engin de marinage 12 sont relativement réduits et, en dehors des périodes d'allers et retours, l'engin de marinage suit l'engin de curage. En revanche, lorsque l'engin de curage 10 est proche de la distance maximale prévue de traitement de l'égout, l'engin de marinage 12 ne reste en station auprès de l'engin de curage que sensiblement le temps de procéder au transfert des sédiments ou déblais de la trémie 44 vers la benne 62 à l'aide du convoyeur 50.It is understood that when the cleaning machine 10 is far from the maximum distance to which it must intervene, with respect to the point of unloading, the journeys made by the pickling machine 12 are relatively small and, outside the periods of back and forth, the picking machine follows the cleaning machine. On the other hand, when the cleaning apparatus 10 is close to the maximum planned sewage treatment distance, the pickling machine 12 remains at the station with the cleaning machine only substantially for the time of carrying out the transfer of the sewage treatment equipment. sediment or excavation of the hopper 44 to the bucket 62 using the conveyor 50.

On a décrit ci-dessus un mode préféré de réalisation de l'invention. Il va cependant de soi que de nombreuses variantes pourraient être envisagées. En particulier, les mobiles constitués par l'engin de curage 10 et l'engin de marinage 12 pourraient ne pas être automoteurs et être entraînés par des moyens de propulsion externes. Ou bien, l'engin de curage 10 et l'engin de marinage 12 pourraient être automoteurs mais commandés automatiquement à distance.A preferred embodiment of the invention has been described above. It goes without saying, however, that many variants could be envisaged. In particular, the mobiles constituted by the cleaning machine 10 and the pickling machine 12 may not be self-propelled and be driven by external propulsion means. Or, the cleaning machine 10 and the mariner 12 may be self-propelled but controlled automatically remotely.

Il serait également possible de prévoir que, au lieu que les deuxièmes moyens de transfert de sédiments constitués par le convoyeur 50 ne soient montés sur l'engin de curage 10 comme cela a été décrit précédemment, ces deuxièmes moyens de transfert soient montés sur l'engin de marinage. Dans ce cas, ces deuxièmes moyens de transfert pourraient consister par exemple en une conduite d'aspiration ou en un système à vis de transfert des sédiments de la trémie 44 vers la benne 62.It would also be possible to provide that, instead of the second sediment transfer means constituted by the conveyor 50 being mounted on the cleaning apparatus 10 as described above, these second transfer means are mounted on the marinating machine. In this case, these second transfer means could consist, for example, of a suction line or a screw system for transferring sediments from the hopper 44 to the bucket 62.

Dans certaines phases de fonctionnement de la machine, l'engin de marinage 12 peut également servir à transporter du combustible pour l'engin de curage 10, du personnel, ou encore différents éléments de maintenance de l'engin de curage.In certain phases of operation of the machine, the pickling machine 12 can also be used to transport fuel for the cleaning machine 10, personnel, or different maintenance elements of the cleaning machine.

Claims (9)

  1. A machine for scraping away sediment or the like deposited on the bottom of a gallery, the machine being characterized in that it comprises:
    • a first movable body (10) suitable for moving over the bottom portion of the wall of the gallery, said first movable body presenting a front and a rear;
    • first movement means (16, 18, 20) for enabling said first movable body to move on the bottom portion of the wall of the gallery;
    • scraper means (26) for detaching sediment from the bottom of the gallery and mounted at the front of said first movable body;
    • first buffer storage means (44) mounted on said first movable body (10);
    • first transfer means (36) for transferring detached sediment into said first buffer storage means;
    • second transfer means (50) for transferring sediment stored in said first buffer storage means (44) to the outside of said first movable body;
    • a second movable body (12) distinct from the first movable body, and suitable for moving along the bottom portion of the wall of the gallery;
    • second movement means (54, 56, 58, 60) for enabling said second movable body to move on the bottom portion of the wall of the gallery; and
    • second storage means (62) mounted on said second movable body to collect the sediment transferred to the outside of the first movable body by second transfer means.
  2. A machine according to claim 1, characterized in that the first movement means (16, 18, 20) are first motor means mounted on the first movable body.
  3. A machine according to claim 1 or claim 2, characterized in that the second movement means (54, 56, 58, 60) are second motor means mounted on the second movable body.
  4. A machine according to any one of claims 1 to 3, characterized in that the first transfer means (36) comprise a loader auger placed in register with the scraper means and/or a conveyor (50) having a first end co-operating with the loader auger and/or the scraper means, and the second end that is located above the first buffer storage means.
  5. A machine according to any one of claims 1 to 4, characterized in that said first buffer storage means (44) are located at the rear of the first movable body.
  6. A machine according to any one of claims 1 to 5, characterized in that the second transfer means (50) are mounted on said first movable body.
  7. A machine according to any one of claims 1 to 6, characterized in that said second storage means (62) are removable relative to said second movable body.
  8. A machine according to any one of claims 1 to 7, characterized in that said first buffer storage means (44) comprise a buffer tank.
  9. A method of scraping sediment or the like deposited on the bottom of a gallery, the method being characterized in that it comprises the following steps:
    • moving a first movable body provided with scraper means on the bottom portion of the gallery;
    • storing sediment on said movable body as it is removed;
    • moving a second movable body on the bottom portion of the wall of the gallery;
    • periodically transferring the sediment stored on the first movable body to the second movable body while the second movable body is kept close to the first movable body;
    • after the sediment has been transferred, moving the second movable body between its position close to the first movable body to a second stationary position for unloading the sediment stored on said second movable body to the outside of the gallery; and
    • returning said second movable body towards its position close to the first movable body;
    whereby the first movable body can perform the scraping operation continuously, including during stages of unloading the sediment with the help of the second movable body.
EP09154545.9A 2008-03-12 2009-03-06 Dredging machine and method of dredging Not-in-force EP2101005B1 (en)

Applications Claiming Priority (1)

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FR0851605A FR2928669B1 (en) 2008-03-12 2008-03-12 CURING MACHINE

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EP2101005A2 EP2101005A2 (en) 2009-09-16
EP2101005A3 EP2101005A3 (en) 2012-11-07
EP2101005B1 true EP2101005B1 (en) 2018-02-21

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FR (1) FR2928669B1 (en)
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SG155857A1 (en) 2009-10-29
EP2101005A3 (en) 2012-11-07
EP2101005A2 (en) 2009-09-16
US20090229631A1 (en) 2009-09-17
US8276600B2 (en) 2012-10-02
FR2928669A1 (en) 2009-09-18
FR2928669B1 (en) 2012-01-13

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