FR2473008A1 - BOAT, ESPECIALLY DRAWER WITH TRAINING SUCTION HOPPER, COMPRISING A ARM OF CLEANING THE SURFACE OF THE WATER - Google Patents

Abstract

BOAT, PARTICULARLY A SUCKING DRAGON, EQUIPPED WITH A SYSTEM OF ARTICULATED ARMS TO COLLECT (SWEEPING ARM OR DEPOLLUTER) AND CONVEY (CONVEYOR ARM) THE TOP LAYER OF WATER, LOADED WITH OIL PRODUCTS, TO THE GARBAGE. THE ASSEMBLY CAN PIVER AROUND A HORIZONTAL AXIS BETWEEN A STOWING POSITION AND A WORKING POSITION, THE DEPOLLUSTER ARM BEING SUPPORTED BY CUSHIONS 58. A RIGID TUBE 44 CONNECTING THE TWO TOPS AND A CART IS PROVIDED 73 WITH THE HELP OF WHICH THE ARM SYSTEM CAN BE MOVED FOLLOWING THE LONGITUDINAL STEERING OF THE BOAT TO AVOID ANY GENE RECIPROCED WITH THE DREDGING SYSTEM.

Description

2473O08

  Boat, in particular dredge with trailing suction hopper

  te, comprising an arm for cleaning the surface of the water.

  The invention relates to a combination of

  killed in a boat equipped with at least one arm for cleaning or sweeping the surface of the water, or abatement arm, and storage means, housed or not on board said boat, intended for storing petroleum products

  collected by said abatement arm; and more particularly

  rage to a dragging suction hopper dredge, equipped with its own means of movement and maneuver and comprising a hold for the storage of dredged products, such as a mixture of sand and water, and means for emptying this bunker, a pipeline system

  with a suction head, a suction pump

  tion and discharge disposed in said pipe and a pressure pipe system opening into said hold; said anti-pollution arms which are provided with the boat which can also be maneuvered to be placed along the boat and to be arranged so as to burst the surface of the water, each of these anti-pollution arms being connected to an arm intended for conveying the product harvested, or conveyor arm, by means of an articulation joint and each of these conveyor arms being fixed, in a manner allowing it to pivot about a horizontal axis, on a support mounted on the edge of the deck of the boat; each of these pollution control arms being fitted with pumps for sucking up the petroleum product accumulated in front of said arms, which product can be transported to storage locations provided in the suction hopper dredger, such as the bunker existing therein, by means a pressure pipe system running along the conveyor arm; the assembly combining the conveyor arm and the abatement arm, in a folded situation, which can pivot around a horizontal axis disposed parallel to the edge of the bridge between a working position in which the assembly is placed outside the boat and a position of storage or stowage in which the assembly was brought on board the boat by pivoting about said axis; while at least two davits are provided on deck

  or lifting jibs which can pivot around horizontal axes

  zontales and mounted in locations spaced suitably from each other, the lifting cables of these brackets being connected to the abatement arm. Such a trailing suction hopper dredge fitted with means for collecting petroleum products floating on the surface of the water is under construction and has been published in brochures. Moreover and generally, there are known boats equipped with a pollution control arm, in which the petroleum product harvested by said pollution control arm is stored either on board the boat in

  tanks suitable for this purpose be stored in use

  other floating devices. Be born the conveyor arm

  is absent and the depolluting arm is fully com-

ordered using cables.

  These known boats present problems.

  It should be possible to store and stow the abatement arm on board the boat, and it must also be possible to bring the abatement arm in its safe and easy manner, whatever the weather conditions.

  outboard position and in its position on board the boat.

  In particular, the dredger in question further presents the difficulty that the means intended for sucking up the petroleum product and the means intended for dredging must not interfere with each other although having to be fixed in service in a location as favorable as possible which can be arrange at the start or in the middle part of the length of the boat. The suction pipe system with the suction head as well as the conveyor arm and the depollution arm must both be able to be stored and stowed on the deck. For this purpose the support as well as the conveyor arm and the de-polluting arm equipped with tubes and the channeling system are arranged so as to be able to pivot around a horizontal axis and, if necessary, to be able to move along the bridge in order to allow them to be placed in a

  position where they are out of reach of the telescopic suction tube

  so that the latter can, depending on the case, be placed outside the boat or brought back on board without difficulty. The conveyor arm and the pollution control arm are large elements whose handling is difficult. When pivoting, these elements must be moved simultaneously, each around its axis of rotation and this by means of the movement mechanism

its own.

  The object of the present invention is to provide a device whose operation and possibilities

are improved.

  This is obtained according to the invention above all by the fact that the lifting brackets are connected together by a torsion-resistant construction element, a tube for example, and that the support is connected to this

element.

  By coupling the lifting jibs to each other by means of a torsion-resistant building element, a lifting mechanism is created which is capable of extending over most of the length of the anti-pollution arm and allowing

  thus a better overall control thereof.

  The degree of rigidity of the assembly also gives the assurance that the pivoting movements can actually take place. We build up with the abatement arm, the conveyor arm and the lifting jibs

2,475,000

  which can be easily maneuvered when the lifting jibs have a support arm, being an integral part, which is directed downwards in position

  working and which is practically directed horizonta-

  Lement in the stowed position on the bridge, said support arm respectively constituting a stop or a support surface for the abatement arm. When the abatement arm is launched out of the boat, this arm is supported until the last moment while when the abatement arm is raised to take it out of the water, this arm is pulled by the lifting cables and presses against the support arm and is thus supported for

  that it pivots to be brought back on board.

  Consequently, according to the present invention, the lifting jibs and the torsion-resistant connection element, which preferably has the form of a tube, constitute an assembly which not only supports the conveyor arm and the abatement arm in their position on board but still absorb all the forces appearing during the rocking movements of said arms and of their positioning outside the edge and during work. During work, the abatement arm floats on the waves and is held in the correct position by the conveyor arm and by the cables and, because the conveyor arm is fixed to this assembly, the latter is subjected to a combination of forces They are variable and act in various directions. Preferably the assembly containing the support, the conveyor arm and the de-polluting arm as well as the lifting jibs and the torsion-resistant connection arranged between the latter is mounted entirely on a base which, if desired, can be movable in the longitudinal direction of the boat and which includes stops respectively determining the working position and the stowed position of the lifting jibs and by

2473008:

  therefore means of cleaning up water.

  In this way, a rigid assembly is obtained which can be very well guided and maneuvered and which can be easily brought into the working position and removed from this position and which can also be kept out

  of the suction means used for dredging.

  According to the present invention, the device which can be moved in the longitudinal direction of the boat is not necessarily a simple base or trolley but it can, and it is preferable, include two independent trolley chassis, each chassis supporting, by means a horizontal pivot, the assembly consisting of lifting brackets and the torsion-resistant connection; the pivots are aligned and the carriage chassis, which are movable on tracks made up of rails fixed to the deck of the boat, can, all being independent, easily modify their position to adapt to the

  deformation of the track that can cause deformation

  boat deck or heat expansion,

  without changing the position of the lifting brackets.

  Furthermore, according to the present invention, the assembly consisting of the lifting jibs and the torsion-resistant connection can carry a track formed of rails along which can be moved a carriage or the like, to which the upper end of the conveyor arm is connected, said track extending in the direction of the front end of the boat beyond the most forward lifting jib. In this way the connection point of the conveyor arm can be moved further forward, beyond the most forward position of said assembly. This makes it possible to move the connection point of the conveyor arm and the abatement arm in a region of the deck of the boat covered by the suction tube and this can be done in combination or not with the mobility of this assembly in the longitudinal direction.

Of the boat.

  According to the present invention, it is preferable to provide, near the pivot articulation between the conveyor arm and the support, a hydraulic cylinder mounted between the conveyor arm and the torsion-resistant element or the support fixed to it. ci, said cylinder fixing the angle of rotation of the conveyor arm around the vertical pivot. This gives a good position adjustment

  of the deposition arm in relation to the hull of the boat.

  It may also be useful to provide, near the pivot joint located between the conveyor arm and the support, a spring between the lifting bracket and the conveyor arm, said spring partially compensating for the weight of the conveyor arm. With such compensation of the weight of the conveyor arm, the abatement arm can follow the movement of the waves more independently. By positioning the lifting brackets in intermediate positions, it is also possible to move the lower end of the conveyor arm, which in this case only rotates around the horizontal transverse shaft at the intended location of the support, to bring it more or less far outside the boat so that the position of the inner end of the abatement arm can in this way be determined relative to the hull

Of the boat.

  The invention will be better understood from the description

  of some of its embodiments, given here by way of illustration but in no way limitative, yes, will be made of it below with the aid of the appended figures which represent: FIGS. 1 and 2 the trailing suction hopper dredger of construction; Figures 3 and 4, respectively in plan and along a section in a plane perpendicular to the axis of the boat, the improved constructive arrangement in accordance with the present invention Figure 5, schematically a preferred embodiment of the mounting of the lifting jibs on the deck of the boat; Figure 6, a top view of another embodiment of the invention; Figure 7 a front view of the embodiment of Figure 6 and Figure 8, a rear view of the embodiment

realization of Figures 6 and 7.

  The trailing suction hopper dredger shows

  shown in Figures 1 and 2, has a shell l with the usual superstructures 2, propeller propellers 3

and a rudder 4.

  We have designated by the reference numeral 7 the hold in the bottom of which are provided hatches 8 visible

in figure 1.

  On the deck is a mobile crane 9 and a suction pipe system 10 with a suction mouth 11 for dredging. The suction line is provided at two locations with an articulation joint, respectively 13 and 14 and with a connection device 15 on its upper end remote from the suction head. By 16 and 17 we have designated lifting means by means of which the suction line can be

  raised and raised outside the boat or maybe

  come down. During this operation consisting in bringing the suction pipe out of the boat, the device 15 is also moved outwards on the guide rails 18 and 19, whereby coupling is made in the usual way with the

  pressure line 20 used to fill the hold.

  This connection has not been shown but is in itself

generally known.

  In FIG. 2, the position of the pipe of

  sucking after it has been placed outside the boat.

  Figures 1 and 2 also show how this boat can be equipped with a pollution control system eliminating petroleum products floating on the surface of the water. This installation consists of a support 21 to which are attached an arm ensuring the delivery of the product

  collected or conveyor arm 22 and a sweeping or collecting arm

  both the floating product or the anti-pollution arm 23. This anti-pollution arm can be fitted on its ends with floats

24 and 25.

  The conveyor arm 22 is attached to the support 21 by means of a horizontal hinge pin 26 disposed transversely to the boat. The support can itself be articulated by a vertical axis 27 with said

conveyor arm.

  The lower end, located to the left of the figure, of the conveyor arm 22 has an axis 30 ensuring its articulation with the pollution control arm 23. Thanks to the presence of these articulation axes 26 and 30, the pollution control mechanism can float on the water next to the hull of the boat at the desired depth while the conveyor arm is placed in an inclined position down from the support. The cleaning arm is kept in the position where it is in action using cables

such naked 32.

  The petroleum product collected by the stripped arm

  glow is brought towards the interior end of this arm using pumps 33, placed at this point, which can discharge the mixture of petroleum product and water

  directly on board the boat in hold 7 via the

  medial of a pipe running all along the conveyor arm 22. Figures 1 and 2, on their side located to the left, show the stowage position of the depolluting mechanism. For this purpose, the support can pivot around an axis 34 arranged in the longitudinal direction of the boat, said support being mounted on a carriage 35 movable on rails 36. The support as well as the conveyor and depollution arms can thus be in position working approximately in the middle of the boat and in the stowed position on the back of it so that the normal dredging mechanism does not suffer discomfort when it is put into action. In Figure 1, the anti-roller mechanism is shown after being placed by

  pivot in its stowed position on board the boat.

  In this position, the conveyor arm and the etched arm

  glow are drawn against each other because they are respectively suspended from the lifting means 37, 38

  can pivot inwards and outwards.

  It can be seen from FIG. 1 that, when the pollution control mechanism is in its pivoted position on board the boat, the pollution control arm 23 is placed on the top of the conveyor arm 22. It is this same position which is shown at the bottom of Figure 2 in phantom while on the upper left of Figure 2 there is shown the position which is taken when the

  pollution control mechanism has been pivoted to the outside

  laughter of the boat while the conveyor arm 22 and the arm

  depolluter 23 are however still in a horizontal position.

  259 when these arms are then lowered using the lifting means 37 and 38 to come to take their working positions shown on the right part of FIG. 2, the lifting means will lower the abatement arm 23 until '' it reaches the surface of the water, moment from which the abatement arm begins to float, which occurs from the points

39 and 40.

  When the carriage 35 is then moved forward on the rails 36, a movement in which it is accompanied by the abatement arm simultaneously carrying out an oscillating outward movement, the lifting cables assume a position as that indicated by

  lines 41 and 42 of the lower part of figure 2.

  Figures 3 and 4 show the improved device which is the subject of the present invention. In FIG. 3, the anti-pollution arm 53 is shown in the folded position in which it is placed as close as possible to the conveyor arm 52 while the working position is shown in phantom. The support 51 is fixed to a torsion-resistant tube 44 connecting the two lifting brackets 57 and 58 to each other. These lifting brackets are mounted in such a way as to allow them to pivot about the pivot 54, on the carriage 55 which can be movable on the

rails 56.

  By means of a hydraulic cylinder 45 which is connected to the lifting means at the level of the tube 44, these lifting means can, from their stowed position, be brought into their horizontal working position shown

in figure 4.

  A winch is mounted on each of the lifting cranes, respectively 46 and 47. Each lifting crane comprises, rigidly fixed on it, an upright 48 constituting respectively a stop or a support for the abatement arm 53 when the latter has been pulled against Ell

26 it by the lifting cable 49.

  The carriage 55 has stop surfaces 59 and respectively serving for the stowage position and

  for the working position of the depolluting mechanism.

  In this embodiment, the petroleum product pumps receiving 63 have been designated by a

overflow 64.

  When the carriage 55 is moved on the rails 56 to come into the working position, that is to say is moved forward, the hydraulic cylinder 45 is released at

  unless it is also mounted on the cart.

  In FIG. 3, we can also see a hydraulic cylinder 29, mounted between the conveyor arm 52 and the

  tube 44, harmed fixes the angular position of said arm 52.

  In FIG. 4, we still see a pneumatic cylinder

  continuous or spring 66, mounted between the lifting bracket 58 and the conveyor arm 52, by means of which part of the weight

  of the conveyor arm is compensated.

  It should be noted that the cylinder 45 can be put into action not only to place the abatement arm and the conveyor arm outside the boat or to bring it back on board but also to place the lifting jibs in intermediate positions in which the conveyor arm, which can rotate around a horizontal transverse axis, must conform to these positions, thanks to which the position of the outer end of the conveyor arm and consequently that of the arm

  abatement in relation to the boat can be fixed.

  In the embodiment shown in FIG. 5, the lifting brackets 57 and 58 provided with uprights 48 are connected together by the torsion-resistant tube 44 and by means of lugs 68, 69 carried by horizontal pivot axes 54 and can rotate around

of these.

  The embodiment shown in Figure 5 differs from that shown by way of example in Figure 4 in that, instead of the single carriage 55 of this

  FIG. 4, two carriages 70 and 71 are used, independently

  from one another, following the deviations of the rails 56.

  Figures 6, 7 and 8 show another embodiment which differs from that of Figures 1 to 4 only in that the connection 44 resistant to torsion supports a track 72, consisting of one or rails, along which one can move, from the intermediate position shown in Figure 6, a carriage or cradle 73 to bring it into its position the

  further forward shown in Figure 7.

  1 2 In this position, the pipe 74 fixed on the conveyor arm 75 can be connected to the conduits 76 which

  are secured on a fixed platform 77 of the boat 78.

  FIG. 6 shows the pollution control arm 79 in the position in which it is pulled against the lifting brackets 57 and 58 but is not yet in the position, shown in broken lines 80, where it provides pollution control. The conveyor arm 75 is coupled to the carriage 73 and the electrical wires 81 for supplying energy are fixed to the conveyor arm 75 in order to supply the pumps 82 of the abatement arm with energy. In the position shown in FIG. 6, the conveyor arm and the abatement arm can be lowered and moved to a position located further forward in which there is no possible interference with the suction head 83 disposed on the deck of the boat 78 and indicated by

mixed lines.

  FIG. 7 shows, drawn in solid lines, the oil remover arm 79 held against the lifting vessels 57 and 58. In this figure the conveyor arm 75 is shown in broken lines and the same applies to the guide track 72 and the carriage 73. In the front potition shown, the abatement arm can be lowered

  in the position indicated by the broken lines 80.

  Figure 8 shows the post-

  58 and shows that the support 72 with the guide track for the carriage 73 is connected to the tube 44 by

beams 84 and 85.

  As goes without saying and as it already follows from the above, the invention is in no way limited to that of its modes of application, no more than to those of the embodiments of its various parts, having have been more particularly envisaged; she embraces it, at

otherwise, all variants.

Claims (9)

  1. Combination consisting of a boat equipped with at least one arm for cleaning or sweeping the surface of the water, or anti-pollution arm, and storage means, housed or not on board said boat, intended for storing the products oil tankers collected by said scrubber arm, and more particularly dragging with trailing suction hopper,   equipped with its own means of movement and maneuver-   glass and comprising a hold for the storage of dredged products, such as a mixture of sand and water, and means for emptying this hold, a channeling system   with a suction head, a suction pump   tion and discharge disposed in said pipe and a pressure pipe system opening into said hold; the anti-pollution arms with which the boat is fitted which can also be maneuvered to be placed alongside the boat and to be arranged so as to burst the surface of the water, each of these anti-pollution arms being connected to an arm intended to convey the product harvested, or conveyor arm, by means of an articulation joint and each of these conveyor arms being fixed, in a manner allowing it to pivot about a horizontal axis, on a support mounted on the edge of the deck of the boat ; each of these pollution control arms being fitted with pumps for sucking up the petroleum product accumulated in front of said pollution control arms, which product can be conveyed to storage locations provided in the suction hopper dredge, such as the hold existing therein, at the by means of a pressure pipe system running along the conveyor arm; the assembly combining the conveyor arm and the pollution control arm, in a folded situation,   can pivot about a horizontal axis arranged parallel-   parallel to the edge of the bridge between a working position in which the assembly is placed outside the boat and a storage or stowage position in which the assembly has been brought on board the boat by pivoting about said axis; while there are provided on the bridge at least two davits or lifting brackets which can pivot about horizontal axes and mounted in locations spaced suitably from each other, the lifting cables of these brackets being connected to the arm depolluter,   which combination is characterized in that the poten-   these lifting devices are connected to each other by a torsion-resistant construction element, such as a tube by   example, and in co that said support is connected to this element.   2. Combination according to claim 1, charac-   in that the axis of the torsion-resistant tube is   confused with the horizontal pivot axis.   3. Combination according to any one of the claims.   cations 1 and 2, characterized in that the part which can be pivoted around said horizontal axis, part consisting of the conveyor arm, the anti-pollution arm and the torsion-resistant connection, can effect said   pivoting between respective determining stops-   the working position and the stowed position.   4. Combination according to any one of the claims.   cations 1 to 3, characterized in that the lifting jibs comprise a support arm forming an integral part, in that said support arm is directed downward in the working position and is arranged practically horizontally in the stowed position and in that said support arm respectively forms the stop surface and the   support surface for the anti-pollution arm.   5. Combination according to any one of the claims.   cations 1 to 4, equipped with means making it possible to move the support of said conveyor and depollution arms in the longitudinal direction of the boat, characterized in that the assembly formed by the lifting brackets and by the torsion-resistant connection and carrying the arm conveyor and the abatement arm is mounted on a device which can be moved in the longitudinal direction Of the boat.   6. Combination according to any one of the res-   dications 1 to 5, characterized in that there is provided, near the pivot joint between the conveyor arm and the support, a hydraulic cylinder mounted between the conveyor arm and the torsion-resistant element or the fixed support to this one, said cylinder fixing the angle of   rotation of the conveyor arm around the vertical pivot.   7. Combination according to any one of   Claims 1 to 6, characterized in that it is provided,   near the pivot joint located between the conveyor arm and the support, a spring between the lifting bracket and the conveyor arm, said spring   partially compensating for the weight of the conveyor arm.   8. Combination according to claim 5, character-   risée on cc bare the device which can be moved in the longitudinal direction of the boat comprises two independent carriage chassis, which support the assembly consisting of lifting brackets and the torsion resistant connection, by means of aligned horizontal pivots.   9. Combination according to any one of the claims   cations 1 to 8, characterized in that the assembly consisting of lifting brackets and the torsion-resistant connection carries a track, formed of at least one rail, along which can be moved a carriage or similar device to which was connected to the upper end of the conveyor arm, said track extending towards the front of the boat beyond the jib crane   which is located furthest forward.