EP3568528B1 - Motorised vehicle for recycling aggregates and motorised unit for making trenches including such a motorised vehicle - Google Patents

Motorised vehicle for recycling aggregates and motorised unit for making trenches including such a motorised vehicle Download PDF

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Publication number
EP3568528B1
EP3568528B1 EP18702761.0A EP18702761A EP3568528B1 EP 3568528 B1 EP3568528 B1 EP 3568528B1 EP 18702761 A EP18702761 A EP 18702761A EP 3568528 B1 EP3568528 B1 EP 3568528B1
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EP
European Patent Office
Prior art keywords
aggregates
vehicle
crushing chamber
trench
motorised
Prior art date
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Active
Application number
EP18702761.0A
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German (de)
French (fr)
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EP3568528A1 (en
Inventor
Daniel Rivard
Philippe Dhervilly
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Groupe Marais
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Groupe Marais
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Publication of EP3568528A1 publication Critical patent/EP3568528A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • 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
    • 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
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables

Definitions

  • the present invention relates to a motorized machine for recycling aggregates, as well as to a motorized assembly for making trenches in the ground, which comprises such a motorized machine for recycling aggregates.
  • the motorized assembly for making trenches in the ground has the function of making trenches for laying elongated objects such as, for example, optical and / or electrical cables, pipes and / or flexible conduits. ..
  • the production of such a trench in the ground is carried out by a trencher wheel digging device carried by a specific motorized vehicle.
  • a trencher wheel digging device carried by a specific motorized vehicle.
  • another machine is often used to suck up and recover the aggregates produced during the digging of the trench at the exit of the face of the trencher wheel.
  • patent FR-2 822 862 a vehicle is known which simultaneously performs the two functions of digging the trench and sucking (and collecting) the aggregates, which makes it possible, in working conditions, to considerably reduce the inconvenience caused during the execution of the work on the road network and also reduce the logistics involved and, therefore, the production costs.
  • the document US 4,913,586 A discloses another vehicle ensuring, in addition to digging and collecting aggregates, their decontamination.
  • the object of the present invention is to remedy these drawbacks. It relates to a motorized machine for recycling aggregates, comprising a frame and a drive unit.
  • the present invention therefore allows efficient recycling, directly on the site, of all the aggregates produced, and this using one and the same motorized machine, which on the one hand avoids the usual costs. disposal of aggregates and secondly to have mortar (self-compacting, fluid, homogeneous and stable) ready for use on the site.
  • the motorized vehicle comprises a screen arranged between the crushing chamber and the mixing device.
  • the motorized machine is configured to separate the aggregates available at the outlet of the crushing chamber according to of a predetermined size, the aggregates whose size is less than or equal to said predetermined size being transmitted to the mixing device and the aggregates whose size is greater than said predetermined size being returned to the crushing chamber.
  • said crushing chamber and said screen each have a working direction between their respective inlet and outlet, which is transverse with respect to a longitudinal direction of the frame of the machine, and said machine comprises transfer paths on the one hand between the crushing chamber and the screen and on the other hand between the screen and the mixing device, these transfer paths each having a distribution direction which is substantially parallel to said longitudinal direction, which allows greatly reduce the size of the processing line mounted on the frame and thus, in particular, to provide a shorter frame.
  • the aggregate collecting device comprises a suction device, while in a second embodiment, said aggregate collecting device comprises a conveyor belt or other mechanical loading means.
  • the present invention also relates to a motorized assembly for the production of trenches.
  • the trenching system comprises an autonomous auxiliary drive unit, and it is linked to said motorized aggregate recycling machine, at least for the collection of aggregates.
  • the motorized assembly comprises a means for controlling the speed of advance of the two systems: of the trenching system and of the motorized machine for recycling aggregates.
  • the trenching system is mounted on the frame of the motorized aggregate recycling machine.
  • all of the means (systems, devices, etc.) for making the trenches and recycling the aggregates are mounted on one and the same motorized vehicle.
  • the motorized vehicle 1 shown in figures 1 and 2 is a mobile aggregate recycling machine.
  • This motorized vehicle 1 comprises a chassis 2 of longitudinal axis L and a drive unit 3 associated with four axles provided with wheels 4 to generate the movement of the motorized vehicle 1 on the ground, in the direction illustrated by an arrow E on the figure 1 .
  • the driver's cabin 5 is shown very schematically.
  • the present invention therefore allows efficient recycling directly on the site of all the aggregates produced, and this using one and the same motorized machine 1.
  • the motorized vehicle 1 also comprises a screen 14. This screen 14 is arranged between the crushing chamber 9 and the mixing device 10.
  • the screen 14 is configured to separate the aggregates available at the outlet of the crushing chamber 9 according to a predetermined size.
  • the aggregates are transmitted to the mixing device 10 via a transfer path 15, one end 15A of which emerges, for example, above a ramp 26 allowing to the crushed aggregates to access the tanks 17 and 18 of the mixing device 10, as illustrated schematically by arrows A1 to A4 on the figure 3 .
  • the aggregates whose size is greater than said predetermined size are, for their part, returned to the crushing chamber 9.
  • the motorized vehicle 1 For the transfer of aggregates from one unit to another within the processing line 6, the motorized vehicle 1 comprises transfer channels 15 and 19 which can be produced in various usual ways. They may include, for example, a conveyor belt.
  • the crushing chamber 9 has a working direction D1 between its inlet and its outlet, and the screen 14 has a working direction D2 between its inlet and its outlet, as shown in the figure. figure 2 .
  • direction of work of any unit is meant the direction in which the products, in particular the aggregates, move within the unit considered during their treatment.
  • the working directions D1 and D2 are lateral, that is to say transverse to the longitudinal direction L of the frame 2 of the machine 1. In other words, they are inclined with respect to this longitudinal direction L and therefore not parallel to the latter.
  • the working directions D1 and D2 are substantially orthogonal to the longitudinal direction L, as shown in figure 2 .
  • the motorized vehicle 1 comprises a transfer path 19 between the crushing chamber 9 and the screen 14, and the transfer path 15 between the screen 14 and the mixing device 10.
  • the transfer paths 19 and 15 each have a transfer direction F1 and F2 which is substantially parallel to said longitudinal direction L.
  • This preferred embodiment with a crushing chamber 9 and a screen 14 working laterally (directions D1 and D2), associated with longitudinal transfers of aggregates (directions F1 and F2), makes it possible to greatly reduce the size of the chain of treatment 6 mounted on the frame 2 and thus provide a shorter frame 2.
  • This preferred embodiment has many advantages. It thus makes it possible, in particular, to reduce any inconvenience caused during the execution of work on the road network.
  • the collecting device 7 intended to collect the aggregates to be treated and bring them to the crushing chamber 9 can be produced in different ways.
  • the aggregate collection device 7 comprises a suction device 16, as shown in FIGS. figures 1 and 2 .
  • the suction device 7 comprises an apparatus such as a turbine for generating a vacuum in the pipe 8 (or flexible pipe), the free end of which accesses the aggregates to be recovered in order to suck them.
  • the suction device 7 can be supplied with suction flow by a turbine located on a slicing system placed in front of the motorized vehicle 1.
  • the suction device 16 is positioned above the crushing chamber 9 so that the aggregates which are sucked by the flow of the suction device can descend directly by gravity into the crushing chamber 9.
  • said collecting device 7 comprises a conveyor belt, in a mechanical loading mode.
  • the crushing chamber 9 is configured to operate in depression.
  • the purpose of the crushing chamber 9 is to give the aggregates the desired particle size fraction for making the mortar.
  • the motorized machine 1 also comprises a weighing unit (not shown) for weighing the crushed aggregates entering the mixing device 10, in order to know their weight and to be able to add appropriate weights of binder (or cement) and of water (available in the tanks shown by the arrow 11) to produce, by usual mixing, a mortar having the desired properties.
  • a weighing unit (not shown) for weighing the crushed aggregates entering the mixing device 10, in order to know their weight and to be able to add appropriate weights of binder (or cement) and of water (available in the tanks shown by the arrow 11) to produce, by usual mixing, a mortar having the desired properties.
  • This mortar is distributed at the rear 13B of the motorized vehicle 1 using the distribution channel 12 shown on the figures 4 and 5 .
  • the distribution path 12 comprises two worm screws 21 and 22 linked to one another.
  • the first screw 21 is arranged transversely to the longitudinal axis at the rear 13B of the motorized vehicle 1 as shown in figure 4 , and it is fed by the mortar produced by the mixing device 10.
  • the mortar produced is moved in the direction illustrated by an arrow C1 to end in the second screw 22.
  • the latter by its rotation illustrated by an arrow B2, moves the mortar in the direction illustrated by an arrow C2.
  • the mortar can be recovered in a recovery tank 23, as illustrated by an arrow G1 on the figure 5 .
  • the screw 22 is articulated, via a usual articulation 25, to the screw 21. It can be displaced angularly and adopt a position which is either directed along the longitudinal axis, or inclined laterally with respect to this longitudinal axis.
  • the recovery tank 23 is guided by two guides in the trench and supported to the right and left of the latter on two support plates. It is fed with mortar from above and feeds by gravity the trench T, as illustrated by arrows G1, G2 and G3 on the figure 5 .
  • the recovery tank 23 is provided in its lower rear part with an evacuation duct 27.
  • the mixing device 10 or mortar or concrete plant
  • the mixing device 10 is configured to produce a self-placing mortar (or concrete). , which facilitates its installation in the T trench.
  • the motorized machine 1 can be mounted on a semi-trailer or an 8x4 truck or on any other machine or motorized construction site, to transport the treatment unit 6.
  • the motorized vehicle 1 also has a hydrostatic or electric advancement capable of being adjusted, preferably, within a range of 0 to 1 km / h.
  • the motorized vehicle 1 may include an electrical supply by a continuous magnet generator.
  • Aggregates located at ground level, either at the front of the motorized vehicle 1, or laterally on the motorized vehicle 1, are recovered, preferably sucked, by the collecting device 7 as illustrated by an arrow H1 on the figures 1 and 2 .
  • the collecting device 7 brings these aggregates into the processing chain 6 and more precisely into the crushing chamber 9.
  • the aggregates are transferred to the screen 14 via the transfer channel 19.
  • the screen 14 implements a separation of the particles. aggregates so that sufficiently crushed aggregates are conveyed to the mixing device 10 via the transfer path 15 as illustrated by arrows A1 to A4 on the figure 3 , while insufficiently crushed aggregates are returned to the crushing chamber 9 via a transfer path not shown.
  • the mixing device 10 mixes the received aggregates with appropriate amounts of water and binder to form a mortar. This mortar is then distributed to the rear of the motorized vehicle 1, via the distribution channel 12, via the recovery tank 23, as shown in the figure. figure 5 especially.
  • the motorized vehicle 1, as described above, comprising a processing line 6 which continuously manufactures ready-to-use mortar, has many advantages. In particular, it carries out efficient recycling, directly on the site, of all the aggregates produced, and this using a single motorized machine, which on the one hand avoids the usual costs. disposal of aggregates and secondly to dispose of mortar on the site.
  • the motorized vehicle 1, as described above, can be used as an autonomous system.
  • the collection device 7, preferably a suction device collects the aggregates arranged in particular on the ground, from the front or side of the motorized vehicle 1, and brings them to the treatment line 6, and the treatment line 6 transforms them into mortar, which is available at the rear 13B of the motorized vehicle 1.
  • the aggregates can be aggregates generated by digging, for example from a trench, or rubble generated by the demolition of a structure .
  • the motorized machine 1 for recycling aggregates is part of a motorized assembly 30 for making trenches, as shown by way of example in FIG. figure 6 .
  • This motorized assembly 30 comprises, in addition to the motorized vehicle 1, a system 31 for making trenches in the ground.
  • This system 31 comprises, in particular, a device 32 for digging a trench and a system 33 for sucking and collecting the aggregates produced during the digging of a trench by the device 32.
  • This system 31 for making trenches preferably corresponds to , to the device described in patent FR-2 822 862 .
  • the trenching system 31 comprises an autonomous auxiliary drive unit 34, and it is linked to said motorized machine 1 for recycling aggregates, as specified below.
  • System 31 shown in figure 6 comprises, on a frame 35, the digging device 32 by trencher wheel 36 to make a trench T in the soil S (a road for example).
  • the digging device 32 is located in the rear part of the frame 35.
  • the trencher wheel 36 is provided at its periphery with cutting members.
  • the wheel is intended for making narrow, shallow trenches, in particular for laying cables (optical, electrical, telephone, etc.).
  • the suction and collection device 33 comprises an apparatus for generating a vacuum, such as a turbine, and a casing 37 partially enveloping the trencher wheel 36.
  • the turbine is connected to the internal space between the casing 37 and the trencher wheel 36 by means of a flexible pipe 8.
  • the latter is connected, on one side, to a suction outlet provided in the casing 37, and, on the other side, to the device collection box 7 mounted on the motorized vehicle 1.
  • the motorized vehicle 1 uses the aggregates produced during the digging of the trench by the system 31 and recovered via the device 7 for collecting aggregates, as illustrated by arrows J1 and J2, to manufacture mortar.
  • the mortar produced at the outlet of the mixing device 10 is preferably used to fill in at least part of the trench T dug by said system 31.
  • the device 7 for collecting aggregates is part of said device 33 for suction and collection.
  • the motorized assembly 30 thus makes it possible to use the materials (rubble) excavated on site, for the immediate filling of the trench T with the mortar produced, which generates an optimization of costs in logistics and in product.
  • the system 31 also comprises a reel 38 of cable 39 (optical fiber, etc.) or of HDPE pipe, arranged at the front of the driver's cabin of said system 31.
  • the system 31 can be driven by a hydrostatic transmission also supplying the various easements (jacks, motors, etc.) and making it possible to easily adapt its advance to the construction of the trench.
  • the trench T is made with the trencher wheel 36 of the digging device 32 disposed in the median longitudinal axis of the system 31, orthogonally to the plane of the frame 35.
  • the digging device 32 digs the trench T gradually.
  • the aggregates produced by the excavation along the working face are entrained towards the interior of the casing 36, of which the internal space is in depression thanks to the operation of the suction and collection device 7.
  • the aggregates leaving the working face are then sucked in the direction of the treatment line 6 of the motorized vehicle 1.
  • the cable or pipe 39 in particular a bundle of optical fibers, is unwound (as illustrated by arrows 11, 12 and 13) from a reel 38 arranged at the front of the system 31, using usual means.
  • This cable or pipe 39 passes above the system 31 and is placed downstream of the trencher wheel 36, between the latter and the motorized vehicle 1, in the trench T.
  • system 31 and the motorized vehicle 1 move at the same speed, one behind the other, in the direction indicated by the arrow E on the figure. figure 6 .
  • the motorized assembly 1 comprises a means (for example a radar or any other possible means) for controlling the forward speed of the two systems: of the system 31 and of the motorized vehicle 1.
  • a means for example a radar or any other possible means for controlling the forward speed of the two systems: of the system 31 and of the motorized vehicle 1.
  • the motorized assembly comprises, in addition to the motorized vehicle, a system for making trenches in the ground, but no system for sucking and collecting aggregates such as the system. 33 above.
  • the device 7 for collecting aggregates is of the mechanical type, for example a shovel or a telescopic or other device, and it is configured to collect by mechanical means the aggregates generated by the trenching system.
  • system 31 for making trenches can be mounted on the frame 2 of the motorized machine 1 for recycling aggregates.
  • all of the means (systems, devices, etc.) for making the trenches and recycling the aggregates are mounted on one and the same motorized vehicle.
  • the motorized assembly 30 thus generates an optimization of the costs for construction of networks, while improving the environmental impact.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Disintegrating Or Milling (AREA)
  • Road Repair (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Processing Of Solid Wastes (AREA)

Description

La présente invention concerne un engin motorisé de recyclage d'agrégats, ainsi qu'un ensemble motorisé pour la réalisation de tranchées dans le sol, qui comporte un tel engin motorisé de recyclage d'agrégats.The present invention relates to a motorized machine for recycling aggregates, as well as to a motorized assembly for making trenches in the ground, which comprises such a motorized machine for recycling aggregates.

L'ensemble motorisé pour la réalisation de tranchées dans le sol, a pour fonction de réaliser des tranchées pour la pose d'objets allongés tels que, par exemple, des câbles optiques et/ou électriques, des canalisations et/ou conduites flexibles, ...The motorized assembly for making trenches in the ground, has the function of making trenches for laying elongated objects such as, for example, optical and / or electrical cables, pipes and / or flexible conduits. ..

Généralement, la réalisation d'une telle tranchée dans le sol, qui peut être la chaussée ou l'accotement d'une route ou analogue, s'effectue par un dispositif de creusage à roue trancheuse porté par un engin motorisé spécifique. Pour réduire la durée des travaux du fait de la gêne occasionnée par ceux-ci, un autre engin est souvent utilisé pour aspirer et récupérer les agrégats produits lors du creusage de la tranchée en sortie du front de taille de la roue trancheuse.Generally, the production of such a trench in the ground, which may be the roadway or the shoulder of a road or the like, is carried out by a trencher wheel digging device carried by a specific motorized vehicle. To reduce the duration of the work due to the inconvenience caused by it, another machine is often used to suck up and recover the aggregates produced during the digging of the trench at the exit of the face of the trencher wheel.

Par le brevet FR-2 822 862 , on connaît un véhicule qui assure simultanément les deux fonctions de creusage de la tranchée et d'aspiration (et de collecte) des agrégats, ce qui permet, en condition de travail, de réduire considérablement la gêne occasionnée lors de l'exécution des travaux sur le réseau routier et de diminuer également la logistique engagée et, donc, les coûts de réalisation. Le document US 4 913 586 A divulgue un autre véhicule assurant en plus du creusage et de la collecte des agrégats leur décontamination.By patent FR-2 822 862 , a vehicle is known which simultaneously performs the two functions of digging the trench and sucking (and collecting) the aggregates, which makes it possible, in working conditions, to considerably reduce the inconvenience caused during the execution of the work on the road network and also reduce the logistics involved and, therefore, the production costs. The document US 4,913,586 A discloses another vehicle ensuring, in addition to digging and collecting aggregates, their decontamination.

Toutefois, pour un tel chantier de réalisation de tranchée ou pour tout autre chantier pour lequel des agrégats sont générés, se pose toujours la question de l'évacuation des agrégats du chantier, puis de leur traitement, recyclage ou stockage.However, for such a trench construction site or for any other site for which aggregates are generated, the question always arises of the removal of aggregates from the site, then of their treatment, recycling or storage.

Ces opérations présentent des coûts (logistiques et de main d'œuvre) non négligeables.These operations have significant costs (logistics and labor).

La présente invention a pour objet de remédier à ces inconvénients. Elle concerne un engin motorisé de recyclage d'agrégats, comprenant un châssis et une unité motrice.The object of the present invention is to remedy these drawbacks. It relates to a motorized machine for recycling aggregates, comprising a frame and a drive unit.

A cet effet, selon l'invention, ledit engin motorisé comporte, montés sur le châssis :

  • un dispositif de collecte des agrégats ;
  • une chambre de concassage alimentée en agrégats par ledit dispositif de collecte d'agrégats, et configurée pour concasser les agrégats et pour fournir des agrégats concassés à une sortie ;
  • un dispositif mélangeur lié à la chambre de concassage pour recevoir au moins une partie des agrégats concassés disponibles à la sortie de la chambre de concassage et configuré pour mélanger ces agrégats concassés reçus avec au moins un liant pour produire un mortier ; et
  • une voie de distribution configurée pour distribuer le mortier produit en sortie du dispositif mélangeur.
To this end, according to the invention, said motorized vehicle comprises, mounted on the frame:
  • a device for collecting aggregates;
  • a crushing chamber supplied with aggregate from said aggregate collecting device, and configured to crush aggregate and supply crushed aggregate to an outlet;
  • a mixing device linked to the crushing chamber to receive at least a part of the crushed aggregates available at the outlet of the crushing chamber and configured to mix these received crushed aggregates with at least one binder to produce a mortar; and
  • a distribution path configured to distribute the mortar produced at the outlet of the mixing device.

Ainsi, l'engin motorisé conforme à l'invention permet à la fois :

  • de collecter sur un chantier, par exemple sur un chantier de creusage de tranchées, les agrégats produits ; et
  • de les transformer en mortier qui est utilisé directement sur le chantier, par exemple pour reboucher une tranchée préalablement formée dans le cas d'un chantier de creusage de tranchées, après la pose dans la tranchée creusée d'objets allongés tels que des câbles par exemple.
Thus, the motorized vehicle in accordance with the invention allows both:
  • to collect on a site, for example on a trenching site, the aggregates produced; and
  • to transform them into mortar which is used directly on the site, for example to fill a trench previously formed in the case of a trenching site, after laying in the dug trench elongated objects such as cables for example .

La présente invention permet donc un recyclage efficace, directement sur le chantier, de l'ensemble des agrégats produits, et ceci à l'aide d'un seul et même engin motorisé, ce qui permet d'une part d'éviter les coûts usuels d'évacuation d'agrégats et d'autre part de disposer de mortier (auto-compactant, fluide, homogène et stable) prêt à l'emploi sur le chantier.The present invention therefore allows efficient recycling, directly on the site, of all the aggregates produced, and this using one and the same motorized machine, which on the one hand avoids the usual costs. disposal of aggregates and secondly to have mortar (self-compacting, fluid, homogeneous and stable) ready for use on the site.

Dans un mode de réalisation préféré, l'engin motorisé comporte un crible agencé entre la chambre de concassage et le dispositif mélangeur.In a preferred embodiment, the motorized vehicle comprises a screen arranged between the crushing chamber and the mixing device.

Avantageusement, l'engin motorisé est configuré pour séparer les agrégats disponibles en sortie de la chambre de concassage en fonction d'une taille prédéterminée, les agrégats dont la taille est inférieure ou égale à ladite taille prédéterminée étant transmis au dispositif mélangeur et les agrégats dont la taille est supérieure à ladite taille prédéterminée étant renvoyés dans la chambre de concassage.Advantageously, the motorized machine is configured to separate the aggregates available at the outlet of the crushing chamber according to of a predetermined size, the aggregates whose size is less than or equal to said predetermined size being transmitted to the mixing device and the aggregates whose size is greater than said predetermined size being returned to the crushing chamber.

En outre, de préférence, ladite chambre de concassage et ledit crible présentent, chacun, une direction de travail entre leur entrée et leur sortie respectives, qui est transversale par rapport à une direction longitudinale du châssis de l'engin, et ledit engin comporte des voies de transfert d'une part entre la chambre de concassage et le crible et d'autre part entre le crible et le dispositif mélangeur, ces voies de transfert présentant chacune une direction de distribution qui est sensiblement parallèle à ladite direction longitudinale, ce qui permet de réduire fortement l'encombrement de la chaîne de traitement montée sur le châssis et ainsi, notamment, de prévoir un châssis plus court.In addition, preferably, said crushing chamber and said screen each have a working direction between their respective inlet and outlet, which is transverse with respect to a longitudinal direction of the frame of the machine, and said machine comprises transfer paths on the one hand between the crushing chamber and the screen and on the other hand between the screen and the mixing device, these transfer paths each having a distribution direction which is substantially parallel to said longitudinal direction, which allows greatly reduce the size of the processing line mounted on the frame and thus, in particular, to provide a shorter frame.

Dans un premier mode de réalisation, le dispositif de collecte d'agrégats comprend un dispositif d'aspiration, tandis que dans un second mode de réalisation, ledit dispositif de collecte d'agrégats comprend un tapis roulant ou un autre moyen de chargement mécanique.In a first embodiment, the aggregate collecting device comprises a suction device, while in a second embodiment, said aggregate collecting device comprises a conveyor belt or other mechanical loading means.

En outre, avantageusement :

  • la chambre de concassage est configurée pour fonctionner en dépression ; et/ou
  • l'engin motorisé comporte une unité de pesée pour peser les agrégats concassés entrant dans le dispositif mélangeur.
In addition, advantageously:
  • the crushing chamber is configured to operate in depression; and or
  • the motorized machine comprises a weighing unit for weighing the crushed aggregates entering the mixing device.

La présente invention concerne également un ensemble motorisé pour la réalisation de tranchées.The present invention also relates to a motorized assembly for the production of trenches.

Selon l'invention, cet ensemble motorisé comporte :

  • un système de réalisation de tranchées dans le sol, comprenant au moins un dispositif de creusage de tranchée. De préférence, le système de réalisation de tranchées comporte également un système d'aspiration et de collecte des agrégats produits lors du creusage d'une tranchée, ce système de réalisation de tranchées correspondant alors de préférence au dispositif décrit dans le brevet FR-2 822 862 ; et
  • un engin motorisé de recyclage d'agrégats tel que décrit ci-dessus, qui est configuré pour utiliser au moins une partie (et de préférence l'essentiel) des agrégats produits lors du creusage de la tranchée par ledit système de réalisation de tranchées et, de préférence, pour reboucher au moins une partie de la tranchée à l'aide du mortier produit et fourni en sortie du dispositif mélangeur.
According to the invention, this motorized assembly comprises:
  • a system for making trenches in the ground, comprising at least one device for digging a trench. Preferably, the trenching system also comprises a system for sucking and collecting the aggregates produced during the digging of a trench, this trenching system then preferably corresponding to the device described in the patent. FR-2 822 862 ; and
  • a motorized aggregate recycling machine as described above, which is configured to use at least part (and preferably most) of the aggregates produced during the digging of the trench by said trenching system and, preferably, to recap at least part of the trench using the mortar produced and supplied at the outlet of the mixing device.

Dans un premier mode de réalisation, le système de réalisation de tranchées comporte une unité motrice auxiliaire autonome, et il est lié audit engin motorisé de recyclage d'agrégats, au moins pour la collecte des agrégats. Avantageusement, l'ensemble motorisé comporte un moyen d'asservissement de la vitesse d'avancement des deux systèmes : du système de réalisation de tranchées et de l'engin motorisé de recyclage d'agrégats.In a first embodiment, the trenching system comprises an autonomous auxiliary drive unit, and it is linked to said motorized aggregate recycling machine, at least for the collection of aggregates. Advantageously, the motorized assembly comprises a means for controlling the speed of advance of the two systems: of the trenching system and of the motorized machine for recycling aggregates.

En outre, dans un second mode de réalisation, le système de réalisation de tranchées est monté sur le châssis de l'engin motorisé de recyclage d'agrégats. Dans ce second mode de réalisation, l'ensemble des moyens (systèmes dispositifs,...) pour la réalisation des tranchées et le recyclage des agrégats, est monté sur un seul et même engin motorisé.Furthermore, in a second embodiment, the trenching system is mounted on the frame of the motorized aggregate recycling machine. In this second embodiment, all of the means (systems, devices, etc.) for making the trenches and recycling the aggregates are mounted on one and the same motorized vehicle.

Par ailleurs :

  • dans un premier mode de réalisation, le dispositif de collecte d'agrégats (de l'engin motorisé) fait partie d'un système d'aspiration et de collecte (du système de réalisation de tranchées) ; et
  • dans un second mode de réalisation, ledit dispositif de collecte d'agrégats (de l'engin motorisé) comporte un moyen de chargement mécanique.
Otherwise :
  • in a first embodiment, the aggregate collection device (of the motorized vehicle) is part of a suction and collection system (of the trenching system); and
  • in a second embodiment, said device for collecting aggregates (of the motorized vehicle) comprises a mechanical loading means.

L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre, de modes de réalisation de l'invention donnés à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés. Sur ces dessins :

  • la figure 1 est une vue latérale, légèrement en perspective, d'un mode de réalisation particulier d'un engin motorisé de recyclage d'agrégats conforme à l'invention ;
  • la figure 2 est une vue, en perspective, de l'engin motorisé montré sur la figure 1 ;
  • la figure 3 est une vue partielle en perspective, à une échelle agrandie, d'une partie d'une voie de transfert d'agrégats concassés ;
  • la figure 4 est une vue partielle en perspective, à une échelle agrandie, d'une voie de distribution de mortier ;
  • la figure 5 est une vue partielle, en perspective, de l'arrière de l'engin motorisé comprenant la voie de distribution de mortier ; et
  • la figure 6 est une vue latérale d'un mode de réalisation particulier d'un ensemble motorisé pour la réalisation d'une tranchée et le recyclage d'agrégats, représenté au cours de l'exécution d'une tranchée.
The invention will be better understood, and other aims, details, characteristics and advantages thereof will emerge more clearly during the detailed explanatory description which follows, of embodiments of the invention given by way of example. purely illustrative and not limiting, with reference to the accompanying schematic drawings. On these drawings:
  • the figure 1 is a side view, slightly in perspective, of a particular embodiment of a motorized aggregate recycling machine according to the invention;
  • the figure 2 is a perspective view of the motorized vehicle shown on the figure 1 ;
  • the figure 3 is a partial perspective view, on an enlarged scale, of part of a crushed aggregate transfer path;
  • the figure 4 is a partial perspective view, on an enlarged scale, of a mortar distribution path;
  • the figure 5 is a partial perspective view of the rear of the motorized vehicle comprising the mortar distribution path; and
  • the figure 6 is a side view of a particular embodiment of a motorized assembly for the production of a trench and the recycling of aggregates, shown during the execution of a trench.

Conformément à l'invention, l'engin motorisé 1 représenté sur les figures 1 et 2 est un engin mobile de recyclage d'agrégats. Cet engin motorisé 1 comprend un châssis 2 d'axe longitudinal L et une unité motrice 3 associée à quatre essieux munis de roues 4 pour générer le déplacement de l'engin motorisé 1 sur le sol, dans le sens illustré par une flèche E sur la figure 1. Sur les figures 1 et 2, la cabine de conducteur 5 est représentée très schématiquement.According to the invention, the motorized vehicle 1 shown in figures 1 and 2 is a mobile aggregate recycling machine. This motorized vehicle 1 comprises a chassis 2 of longitudinal axis L and a drive unit 3 associated with four axles provided with wheels 4 to generate the movement of the motorized vehicle 1 on the ground, in the direction illustrated by an arrow E on the figure 1 . On the figures 1 and 2 , the driver's cabin 5 is shown very schematically.

Selon l'invention, ledit engin motorisé 1 comporte une chaîne de traitement 6 qui est montée sur le châssis 2. Cette chaîne de traitement 6 comprend, montés sur le châssis 2 de l'avant 13A vers l'arrière 13B du châssis 2 :

  • un dispositif de collecte 7 configuré pour amener les agrégats dans la chaîne de traitement 6. Sur les figures 1 et 2, on a représenté une partie d'un tuyau (ou conduite souple) 8 du dispositif de collecte 7, par lequel sont récupérés les agrégats qui sont généralement disponibles au niveau du sol, devant ou à côté de l'engin motorisé 1. Dans une application préférée, décrite ci-dessous, les agrégats sont extraits de la chaussée ou accotement par une roue trancheuse qui, elle-même, est carénée afin que les agrégats soient plus facilement collectés et prennent un flux d'aspiration vers une chambre de concassage 9 ;
  • la chambre de concassage 9 alimentée en agrégats par ledit dispositif de collecte 7, et configurée pour concasser les agrégats reçus et pour fournir des agrégats concassés à une sortie ;
  • un dispositif mélangeur 10 lié de la manière précisée ci-dessous à la chambre de concassage 9 de manière à recevoir au moins une partie des agrégats concassés (calibrés) disponibles à la sortie de la chambre de concassage 9. Ce dispositif mélangeur 10 est configuré pour mélanger les agrégats concassés reçus, avec au moins un liant (ou du ciment) et de l'eau disponibles dans des cuves localisées par une flèche 11, afin de produire un mortier ; et
  • une voie de distribution 12 configurée pour distribuer (c'est-à-dire pour fournir) le mortier produit en sortie du dispositif mélangeur 10, à l'arrière 13B de l'engin motorisé 1.
According to the invention, said motorized vehicle 1 comprises a processing chain 6 which is mounted on the frame 2. This processing chain 6 comprises, mounted on the frame 2 from the front 13A to the rear 13B of the frame 2:
  • a collection device 7 configured to bring the aggregates into the processing line 6. On the figures 1 and 2 , there is shown a part of a pipe (or flexible pipe) 8 of the collection device 7, by which the aggregates are recovered which are generally available at ground level, in front of or next to the motorized vehicle 1. In a preferred application, described below, the aggregates are extracted from the roadway or shoulder by a wheel slicer which, itself, is streamlined so that the aggregates are more easily collected and take a suction flow to a crushing chamber 9;
  • the crushing chamber 9 supplied with aggregates by said collecting device 7, and configured to crush the received aggregates and to supply crushed aggregates to an outlet;
  • a mixing device 10 linked in the manner specified below to the crushing chamber 9 so as to receive at least part of the crushed aggregates (sized) available at the outlet of the crushing chamber 9. This mixing device 10 is configured to mixing the crushed aggregates received, with at least one binder (or cement) and water available in tanks located by an arrow 11, in order to produce a mortar; and
  • a distribution channel 12 configured to distribute (that is to say to supply) the mortar produced at the outlet of the mixing device 10, at the rear 13B of the motorized vehicle 1.

Ainsi, l'engin motorisé 1 permet à la fois :

  • de collecter sur un chantier les agrégats qui sont produits ou disponibles sur ce chantier ; et
  • de les transformer en mortier qui est utilisé directement sur ledit chantier.
Thus, the motorized vehicle 1 allows both:
  • to collect on a site the aggregates which are produced or available on this site; and
  • to transform them into mortar which is used directly on said site.

La présente invention permet donc un recyclage efficace directement sur le chantier de l'ensemble des agrégats produits, et ceci à l'aide d'un seul et même engin motorisé 1.The present invention therefore allows efficient recycling directly on the site of all the aggregates produced, and this using one and the same motorized machine 1.

Dans un mode de réalisation préféré, représenté sur les figures 1 et 2, l'engin motorisé 1 comporte également un crible 14. Ce crible 14 est agencé entre la chambre de concassage 9 et le dispositif mélangeur 10.In a preferred embodiment, shown in figures 1 and 2 , the motorized vehicle 1 also comprises a screen 14. This screen 14 is arranged between the crushing chamber 9 and the mixing device 10.

Le crible 14 est configuré pour séparer les agrégats disponibles en sortie de la chambre de concassage 9 en fonction d'une taille prédéterminée. Les agrégats dont la taille est inférieure ou égale à ladite taille prédéterminée, sont transmis au dispositif mélangeur 10 via une voie de transfert 15 dont une extrémité 15A débouche, par exemple, au-dessus d'une rampe 26 permettant aux agrégats concassés d'accéder dans des cuves 17 et 18 du dispositif mélangeur 10, comme illustré schématiquement par des flèches A1 à A4 sur la figure 3. Les agrégats dont la taille est supérieure à ladite taille prédéterminée sont, quant à eux, renvoyés dans la chambre de concassage 9.The screen 14 is configured to separate the aggregates available at the outlet of the crushing chamber 9 according to a predetermined size. The aggregates, the size of which is less than or equal to said predetermined size, are transmitted to the mixing device 10 via a transfer path 15, one end 15A of which emerges, for example, above a ramp 26 allowing to the crushed aggregates to access the tanks 17 and 18 of the mixing device 10, as illustrated schematically by arrows A1 to A4 on the figure 3 . The aggregates whose size is greater than said predetermined size are, for their part, returned to the crushing chamber 9.

Pour le transfert d'agrégats d'une unité à une autre à l'intérieur de la chaîne de traitement 6, l'engin motorisé 1 comporte des voies de transfert 15 et 19 qui peuvent être réalisées de différentes manières usuelles. Elles peuvent comporter, par exemple, un tapis roulant.For the transfer of aggregates from one unit to another within the processing line 6, the motorized vehicle 1 comprises transfer channels 15 and 19 which can be produced in various usual ways. They may include, for example, a conveyor belt.

Dans un mode de réalisation préféré, la chambre de concassage 9 présente une direction de travail D1 entre son entrée et sa sortie, et le crible 14 présente une direction de travail D2 entre son entrée et sa sortie, comme représenté sur la figure 2. Par direction de travail d'une unité quelconque, on entend la direction selon laquelle se déplacent les produits, notamment les agrégats, à l'intérieur de l'unité considérée lors de leur traitement.In a preferred embodiment, the crushing chamber 9 has a working direction D1 between its inlet and its outlet, and the screen 14 has a working direction D2 between its inlet and its outlet, as shown in the figure. figure 2 . By direction of work of any unit is meant the direction in which the products, in particular the aggregates, move within the unit considered during their treatment.

Les directions de travail D1 et D2 sont latérales, c'est-à-dire transversales à la direction longitudinale L du châssis 2 de l'engin 1. En d'autre termes, elles sont inclinées par rapport à cette direction longitudinale L et donc non parallèles à cette dernière. De préférence, les directions de travail D1 et D2 sont sensiblement orthogonales à la direction longitudinale L, comme représenté sur la figure 2.The working directions D1 and D2 are lateral, that is to say transverse to the longitudinal direction L of the frame 2 of the machine 1. In other words, they are inclined with respect to this longitudinal direction L and therefore not parallel to the latter. Preferably, the working directions D1 and D2 are substantially orthogonal to the longitudinal direction L, as shown in figure 2 .

De plus, l'engin motorisé 1 comporte une voie de transfert 19 entre la chambre de concassage 9 et le crible 14, et la voie de transfert 15 entre le crible 14 et le dispositif mélangeur 10. Les voies de transfert 19 et 15 présentent chacune une direction de transfert F1 et F2 qui est sensiblement parallèle à ladite direction longitudinale L.In addition, the motorized vehicle 1 comprises a transfer path 19 between the crushing chamber 9 and the screen 14, and the transfer path 15 between the screen 14 and the mixing device 10. The transfer paths 19 and 15 each have a transfer direction F1 and F2 which is substantially parallel to said longitudinal direction L.

Ce mode de réalisation préféré avec une chambre de concassage 9 et un crible 14 travaillant latéralement (directions D1 et D2), associés à des transferts longitudinaux d'agrégats (directions F1 et F2), permet de réduire fortement l'encombrement de la chaîne de traitement 6 montée sur le châssis 2 et ainsi de prévoir un châssis 2 plus court. Ce mode de réalisation préféré présente de nombreux avantages. Il permet ainsi, notamment, de réduire l'éventuelle gêne occasionnée lors de l'exécution des travaux sur le réseau routier.This preferred embodiment with a crushing chamber 9 and a screen 14 working laterally (directions D1 and D2), associated with longitudinal transfers of aggregates (directions F1 and F2), makes it possible to greatly reduce the size of the chain of treatment 6 mounted on the frame 2 and thus provide a shorter frame 2. This preferred embodiment has many advantages. It thus makes it possible, in particular, to reduce any inconvenience caused during the execution of work on the road network.

Le dispositif de collecte 7 destiné à ramasser les agrégats à traiter et les amener à la chambre de concassage 9 peut être réalisé de différentes manières.The collecting device 7 intended to collect the aggregates to be treated and bring them to the crushing chamber 9 can be produced in different ways.

Dans un premier mode de réalisation préféré, le dispositif de collecte d'agrégats 7 comprend un dispositif d'aspiration 16, comme représenté sur les figures 1 et 2. Dans ce mode de réalisation, le dispositif d'aspiration 7 comprend, un appareil tel qu'une turbine pour engendrer une dépression dans le tuyau 8 (ou conduite souple) dont l'extrémité libre accède aux agrégats à récupérer pour les aspirer. Dans l'application décrite ci-dessous, le dispositif d'aspiration 7 peut être alimenté en flux d'aspiration par une turbine située sur un système de tranchage placé devant l'engin motorisé 1.In a first preferred embodiment, the aggregate collection device 7 comprises a suction device 16, as shown in FIGS. figures 1 and 2 . In this embodiment, the suction device 7 comprises an apparatus such as a turbine for generating a vacuum in the pipe 8 (or flexible pipe), the free end of which accesses the aggregates to be recovered in order to suck them. In the application described below, the suction device 7 can be supplied with suction flow by a turbine located on a slicing system placed in front of the motorized vehicle 1.

De préférence, le dispositif d'aspiration 16 est positionné au-dessus à la chambre de concassage 9 afin que les agrégats qui sont aspirés par le flux du dispositif d'aspiration puissent descendre directement par gravité dans la chambre de concassage 9.Preferably, the suction device 16 is positioned above the crushing chamber 9 so that the aggregates which are sucked by the flow of the suction device can descend directly by gravity into the crushing chamber 9.

En outre, dans un second mode de réalisation (non représenté), ledit dispositif de collecte 7 comprend un tapis roulant, dans un mode de chargement mécanique.Further, in a second embodiment (not shown), said collecting device 7 comprises a conveyor belt, in a mechanical loading mode.

Par ailleurs, dans un mode de réalisation préféré, la chambre de concassage 9 est configurée pour fonctionner en dépression. La chambre de concassage 9 a pour but de donner aux agrégats la fraction granulométrique recherchée pour fabriquer le mortier.Furthermore, in a preferred embodiment, the crushing chamber 9 is configured to operate in depression. The purpose of the crushing chamber 9 is to give the aggregates the desired particle size fraction for making the mortar.

L'engin motorisé 1 comporte également une unité de pesée (non représentée) pour peser les agrégats concassés entrant dans le dispositif mélangeur 10, afin de connaître leur poids et de pouvoir y ajouter des poids appropriés de liant (ou de ciment) et d'eau (disponibles dans les cuves montrées par la flèche 11) pour produire, par un malaxage usuel, un mortier présentant les propriétés recherchées.The motorized machine 1 also comprises a weighing unit (not shown) for weighing the crushed aggregates entering the mixing device 10, in order to know their weight and to be able to add appropriate weights of binder (or cement) and of water (available in the tanks shown by the arrow 11) to produce, by usual mixing, a mortar having the desired properties.

Ce mortier est distribué à l'arrière 13B de l'engin motorisé 1 à l'aide de la voie de distribution 12 montrée sur les figures 4 et 5.This mortar is distributed at the rear 13B of the motorized vehicle 1 using the distribution channel 12 shown on the figures 4 and 5 .

La voie de distribution 12 comporte deux vis sans fin 21 et 22 liées l'une à l'autre. La première vis 21 est agencées transversalement à l'axe longitudinal à l'arrière 13B de l'engin motorisé 1 comme représenté sur la figure 4, et elle est alimentée par le mortier produit par le dispositif mélangeur 10. Lors de la rotation de la vis sans fin 21, illustrée par une flèche B1, le mortier produit est déplacé dans le sens illustré par une flèche C1 pour aboutir dans la deuxième vis 22. Cette dernière, par sa rotation illustrée par une flèche B2, déplace le mortier dans le sens illustré par une flèche C2. A la sortie de la vis 22, à son extrémité arrière 24, le mortier peut être récupéré dans un bac de récupération 23, comme illustré par une flèche G1 sur la figure 5.The distribution path 12 comprises two worm screws 21 and 22 linked to one another. The first screw 21 is arranged transversely to the longitudinal axis at the rear 13B of the motorized vehicle 1 as shown in figure 4 , and it is fed by the mortar produced by the mixing device 10. During the rotation of the endless screw 21, illustrated by an arrow B1, the mortar produced is moved in the direction illustrated by an arrow C1 to end in the second screw 22. The latter, by its rotation illustrated by an arrow B2, moves the mortar in the direction illustrated by an arrow C2. At the exit of the screw 22, at its rear end 24, the mortar can be recovered in a recovery tank 23, as illustrated by an arrow G1 on the figure 5 .

Pour permettre d'adapter la position de sortie, à savoir l'extrémité arrière 24 libre de la vis 22 en fonction notamment du positionnement du bac de récupération 23, la vis 22 est articulée, via une articulation usuelle 25, à la vis 21. Elle peut être déplacée angulairement et adopter une position qui est soit dirigée le long de l'axe longitudinal, soit inclinée latéralement par rapport à cet axe longitudinal.To make it possible to adapt the output position, namely the free rear end 24 of the screw 22 as a function in particular of the positioning of the recovery tank 23, the screw 22 is articulated, via a usual articulation 25, to the screw 21. It can be displaced angularly and adopt a position which is either directed along the longitudinal axis, or inclined laterally with respect to this longitudinal axis.

Le bac de récupération 23 est guidé par deux guides dans la tranchée et appuyé à droite et gauche de celle-ci sur deux plaques d'appui. Il est alimenté en mortier par le dessus et alimente par gravité la tranchée T, comme illustré par des flèches G1, G2 et G3 sur la figure 5. Le bac de récupération 23 est pourvu dans sa partie arrière basse d'un conduit d'évacuation 27. De préférence, le dispositif mélangeur 10 (ou centrale à mortier ou à béton) est configuré pour produire un mortier (ou béton) auto-plaçant, ce qui facilite sa mise en place dans la tranchée T.The recovery tank 23 is guided by two guides in the trench and supported to the right and left of the latter on two support plates. It is fed with mortar from above and feeds by gravity the trench T, as illustrated by arrows G1, G2 and G3 on the figure 5 . The recovery tank 23 is provided in its lower rear part with an evacuation duct 27. Preferably, the mixing device 10 (or mortar or concrete plant) is configured to produce a self-placing mortar (or concrete). , which facilitates its installation in the T trench.

Dans le cadre de la présente invention, l'engin motorisé 1 peut être monté sur une semi-remorque ou un camion 8x4 ou sur tout autre engin ou moyen motorisé de chantier, pour transporter l'unité de traitement 6.In the context of the present invention, the motorized machine 1 can be mounted on a semi-trailer or an 8x4 truck or on any other machine or motorized construction site, to transport the treatment unit 6.

L'engin motorisé 1 possède, en outre, un avancement hydrostatique ou électrique capable d'être réglé, de préférence, dans une plage de 0 à 1 km/h.The motorized vehicle 1 also has a hydrostatic or electric advancement capable of being adjusted, preferably, within a range of 0 to 1 km / h.

L'engin motorisé 1 peut comporter une alimentation électrique par génératrice à aimant continu.The motorized vehicle 1 may include an electrical supply by a continuous magnet generator.

Le fonctionnement de l'engin motorisé 1 mobile, tel que décrit ci-dessus et représenté notamment sur les figures 1 et 2, est le suivant.The operation of the mobile motorized vehicle 1, as described above and shown in particular in the figures 1 and 2 , is the next.

Des agrégats situés au niveau du sol, soit à l'avant de l'engin motorisé 1, soit latéralement à l'engin motorisé 1, sont récupérés, de préférence aspirés, par le dispositif de collecte 7 comme illustré par une flèche H1 sur les figures 1 et 2. Le dispositif de collecte 7 amène ces agrégats dans la chaîne le traitement 6 et plus précisément dans la chambre de concassage 9. Après concassage, les agrégats sont transférés au crible 14 via la voie de transfert 19. Le crible 14 met en oeuvre une séparation des agrégats de sorte que les agrégats suffisamment concassés sont transmis au dispositif mélangeur 10 via la voie de transfert 15 comme illustré par les flèches A1 à A4 sur la figure 3, tandis que les agrégats insuffisamment concassés sont renvoyés dans la chambre de concassage 9 via une voie de transfert non représentée. Le dispositif mélangeur 10 mélange les agrégats reçus avec des quantités appropriées d'eau et de liant pour former un mortier. Ce mortier est ensuite distribué à l'arrière de l'engin motorisé 1, par l'intermédiaire de la voie de distribution 12, via le bac de récupération 23, comme montré sur la figure 5 notamment.Aggregates located at ground level, either at the front of the motorized vehicle 1, or laterally on the motorized vehicle 1, are recovered, preferably sucked, by the collecting device 7 as illustrated by an arrow H1 on the figures 1 and 2 . The collecting device 7 brings these aggregates into the processing chain 6 and more precisely into the crushing chamber 9. After crushing, the aggregates are transferred to the screen 14 via the transfer channel 19. The screen 14 implements a separation of the particles. aggregates so that sufficiently crushed aggregates are conveyed to the mixing device 10 via the transfer path 15 as illustrated by arrows A1 to A4 on the figure 3 , while insufficiently crushed aggregates are returned to the crushing chamber 9 via a transfer path not shown. The mixing device 10 mixes the received aggregates with appropriate amounts of water and binder to form a mortar. This mortar is then distributed to the rear of the motorized vehicle 1, via the distribution channel 12, via the recovery tank 23, as shown in the figure. figure 5 especially.

L'engin motorisé 1, tel que décrit ci-dessus, comprenant une chaîne de traitement 6 qui fabrique en continu du mortier prêt à l'emploi, présente de nombreux avantages. En particulier, il réalise un recyclage efficace, directement sur le chantier, de l'ensemble des agrégats produits, et ceci à l'aide d'un seul et même engin motorisé, ce qui permet d'une part d'éviter les coûts usuels d'évacuation d'agrégats et d'autre part de disposer de mortier sur le chantier.The motorized vehicle 1, as described above, comprising a processing line 6 which continuously manufactures ready-to-use mortar, has many advantages. In particular, it carries out efficient recycling, directly on the site, of all the aggregates produced, and this using a single motorized machine, which on the one hand avoids the usual costs. disposal of aggregates and secondly to dispose of mortar on the site.

L'engin motorisé 1, tel que décrit ci-dessus, peut être utilisé comme système autonome. Dans ce cas, le dispositif de collecte 7, de préférence un dispositif d'aspiration, collecte les agrégats disposés notamment au sol, à partir de l'avant ou de côté de l'engin motorisé 1, et les amène à la chaîne de traitement 6, et la chaîne de traitement 6 les transforme en mortier, qui est disponible à l'arrière 13B de l'engin motorisé 1. A titre d'illustration, les agrégats peuvent être des agrégats générés par un creusage, par exemple d'une tranchée, ou des gravats générés par la démolition d'un ouvrage.The motorized vehicle 1, as described above, can be used as an autonomous system. In this case, the collection device 7, preferably a suction device, collects the aggregates arranged in particular on the ground, from the front or side of the motorized vehicle 1, and brings them to the treatment line 6, and the treatment line 6 transforms them into mortar, which is available at the rear 13B of the motorized vehicle 1. By way of illustration, the aggregates can be aggregates generated by digging, for example from a trench, or rubble generated by the demolition of a structure .

Dans une application préférée, l'engin motorisé 1 de recyclage d'agrégats, tel que décrit ci-dessus, fait partie d'un ensemble motorisé 30 pour la réalisation de tranchées, comme représenté à titre d'exemple sur la figure 6.In a preferred application, the motorized machine 1 for recycling aggregates, as described above, is part of a motorized assembly 30 for making trenches, as shown by way of example in FIG. figure 6 .

Cet ensemble motorisé 30 comporte, en plus de l'engin motorisé 1, un système 31 de réalisation de tranchées dans le sol. Ce système 31 comprend, notamment, un dispositif 32 de creusage de tranchée et un système 33 d'aspiration et de collecte des agrégats produits lors du creusage d'une tranchée par le dispositif 32. Ce système 31 de réalisation de tranchées correspond, de préférence, au dispositif décrit dans le brevet FR-2 822 862 .This motorized assembly 30 comprises, in addition to the motorized vehicle 1, a system 31 for making trenches in the ground. This system 31 comprises, in particular, a device 32 for digging a trench and a system 33 for sucking and collecting the aggregates produced during the digging of a trench by the device 32. This system 31 for making trenches preferably corresponds to , to the device described in patent FR-2 822 862 .

Dans le mode de réalisation représenté sur la figure 6, le système 31 de réalisation de tranchées comporte une unité motrice auxiliaire autonome 34, et il est lié audit engin motorisé 1 de recyclage d'agrégats, comme précisé ci-dessous.In the embodiment shown in figure 6 , the trenching system 31 comprises an autonomous auxiliary drive unit 34, and it is linked to said motorized machine 1 for recycling aggregates, as specified below.

Le système 31 représenté sur la figure 6 comprend, sur un châssis 35, le dispositif de creusage 32 par roue trancheuse 36 pour réaliser une tranchée T dans le sol S (une route par exemple). Le dispositif de creusage 32 est situé en partie arrière du châssis 35. De façon usuelle, la roue trancheuse 36 est munie à sa périphérie d'organes de coupe. Dans l'exemple illustré, la roue est destinée à réaliser des tranchées étroites et de faible profondeur, notamment pour la pose de câbles (optiques, électriques, téléphoniques, ...).System 31 shown in figure 6 comprises, on a frame 35, the digging device 32 by trencher wheel 36 to make a trench T in the soil S (a road for example). The digging device 32 is located in the rear part of the frame 35. Usually, the trencher wheel 36 is provided at its periphery with cutting members. In the example illustrated, the wheel is intended for making narrow, shallow trenches, in particular for laying cables (optical, electrical, telephone, etc.).

Dans l'exemple de réalisation représenté, le dispositif d'aspiration et de collecte 33 comprend, un appareil pour engendrer une dépression, tel qu'une turbine, et un carter 37 enveloppant partiellement la roue trancheuse 36. Dans cet exemple de réalisation, la turbine est reliée à l'espace interne entre le carter 37 et la roue trancheuse 36 par l'intermédiaire d'une conduite souple 8. Cette dernière est raccordée, d'un côté, à une prise d'aspiration ménagée dans le carter 37, et, de l'autre côté, au dispositif de collecte 7 monté sur l'engin motorisé 1.In the exemplary embodiment shown, the suction and collection device 33 comprises an apparatus for generating a vacuum, such as a turbine, and a casing 37 partially enveloping the trencher wheel 36. In this exemplary embodiment, the turbine is connected to the internal space between the casing 37 and the trencher wheel 36 by means of a flexible pipe 8. The latter is connected, on one side, to a suction outlet provided in the casing 37, and, on the other side, to the device collection box 7 mounted on the motorized vehicle 1.

L'engin motorisé 1 utilise les agrégats produits lors du creusage de la tranchée par le système 31 et récupérés via le dispositif 7 de collecte d'agrégats, comme illustré par des flèches J1 et J2, pour fabriquer du mortier. Le mortier produit en sortie du dispositif mélangeur 10, est utilisé de préférence, pour reboucher au moins une partie de la tranchée T creusée par ledit système 31.The motorized vehicle 1 uses the aggregates produced during the digging of the trench by the system 31 and recovered via the device 7 for collecting aggregates, as illustrated by arrows J1 and J2, to manufacture mortar. The mortar produced at the outlet of the mixing device 10 is preferably used to fill in at least part of the trench T dug by said system 31.

Dans le mode de réalisation, représenté sur la figure 6, le dispositif 7 de collecte d'agrégats fait partie dudit dispositif 33 d'aspiration et de collecte.In the embodiment, shown in figure 6 , the device 7 for collecting aggregates is part of said device 33 for suction and collection.

L'ensemble motorisé 30 permet ainsi une utilisation des matériaux (gravats) excavés sur site, pour le rebouchage immédiat de la tranchée T par le mortier produit, ce qui génère une optimisation des coûts en logistique et en produit.The motorized assembly 30 thus makes it possible to use the materials (rubble) excavated on site, for the immediate filling of the trench T with the mortar produced, which generates an optimization of costs in logistics and in product.

Le système 31 comporte également une bobine 38 de câble 39 (fibre optique,...) ou de pipe en PEHD, agencée à l'avant de la cabine de conducteur dudit système 31.The system 31 also comprises a reel 38 of cable 39 (optical fiber, etc.) or of HDPE pipe, arranged at the front of the driver's cabin of said system 31.

Le fonctionnement de l'ensemble motorisé 30, tel que décrit ci-dessus, est le suivant.The operation of the motorized assembly 30, as described above, is as follows.

Durant l'exécution de la tranchée, le système 31 peut être entraîné par une transmission hydrostatique alimentant également les différentes servitudes (vérins, moteurs, ...) et permettant d'adapter aisément son avance à la réalisation de la tranchée.During the execution of the trench, the system 31 can be driven by a hydrostatic transmission also supplying the various easements (jacks, motors, etc.) and making it possible to easily adapt its advance to the construction of the trench.

De préférence, la tranchée T est réalisée avec la roue trancheuse 36 du dispositif de creusage 32 disposée dans l'axe longitudinal médian du système 31, orthogonalement au plan du châssis 35. Lors de l'avance du système 31, via la rotation de la roue trancheuse 36, le dispositif de creusage 32 creuse la tranchée T progressivement. Les agrégats produits par la fouille le long du front de taille sont entraînés vers l'intérieur du carter 36 dont l'espace interne est en dépression grâce au fonctionnement du dispositif d'aspiration et de collecte 7. Les agrégats sortant du front de taille sont alors aspirés en direction de la chaîne de traitement 6 de l'engin motorisé 1.Preferably, the trench T is made with the trencher wheel 36 of the digging device 32 disposed in the median longitudinal axis of the system 31, orthogonally to the plane of the frame 35. During the advance of the system 31, via the rotation of the trencher wheel 36, the digging device 32 digs the trench T gradually. The aggregates produced by the excavation along the working face are entrained towards the interior of the casing 36, of which the internal space is in depression thanks to the operation of the suction and collection device 7. The aggregates leaving the working face are then sucked in the direction of the treatment line 6 of the motorized vehicle 1.

Simultanément au creusage de la tranchée T, le câble ou pipe 39, en particulier un faisceau de fibres optiques, est déroulé (comme illustré par des flèches 11, 12 et 13) d'une bobine 38 agencée à l'avant du système 31, à l'aide de moyens usuels. Ce câble ou pipe 39 passe au-dessus du système 31 et est posé en aval de la roue trancheuse 36, entre cette dernière et l'engin motorisé 1, dans la tranchée T.Simultaneously with the digging of the trench T, the cable or pipe 39, in particular a bundle of optical fibers, is unwound (as illustrated by arrows 11, 12 and 13) from a reel 38 arranged at the front of the system 31, using usual means. This cable or pipe 39 passes above the system 31 and is placed downstream of the trencher wheel 36, between the latter and the motorized vehicle 1, in the trench T.

Quant aux agrégats récupérés dans la chaîne de traitement 6, comme illustré par les flèches J1 et J2, ils sont traités de la manière précisée ci-dessous en référence aux figures 1 et 2, pour produire du mortier. Ce mortier est finalement utilisé à l'arrière de l'engin motorisé 1 pour combler la tranchée T.As for the aggregates recovered in the processing chain 6, as illustrated by arrows J1 and J2, they are processed in the manner specified below with reference to figures 1 and 2 , to produce mortar. This mortar is finally used at the rear of the motorized vehicle 1 to fill the trench T.

Dans ce mode de réalisation, le système 31 et l'engin motorisé 1 se déplacent à la même vitesse, l'un derrière l'autre, dans le sens indiqué par la flèche E sur la figure 6.In this embodiment, the system 31 and the motorized vehicle 1 move at the same speed, one behind the other, in the direction indicated by the arrow E on the figure. figure 6 .

De préférence, l'ensemble motorisé 1 comporte un moyen (par exemple un radar ou tout autre moyen possible) d'asservissement de la vitesse d'avancement des deux systèmes : du système 31 et de l'engin motorisé 1.Preferably, the motorized assembly 1 comprises a means (for example a radar or any other possible means) for controlling the forward speed of the two systems: of the system 31 and of the motorized vehicle 1.

Dans une variante de réalisation (non représentée), l'ensemble motorisé comporte, en plus de l'engin motorisé, un système de réalisation de tranchées dans le sol, mais pas de système d'aspiration et de collecte des agrégats tel que le système 33 précité. Dans cette variante de réalisation, le dispositif 7 de collecte d'agrégats (de l'engin motorisé 1) est de type mécanique, par exemple une pelle ou un engin télescopique ou autre, et il est configuré pour collecter par voie mécanique les agrégats générés par le système de réalisation de tranchées.In an alternative embodiment (not shown), the motorized assembly comprises, in addition to the motorized vehicle, a system for making trenches in the ground, but no system for sucking and collecting aggregates such as the system. 33 above. In this variant embodiment, the device 7 for collecting aggregates (of the motorized vehicle 1) is of the mechanical type, for example a shovel or a telescopic or other device, and it is configured to collect by mechanical means the aggregates generated by the trenching system.

Par ailleurs, dans autre une variante de réalisation (non représentée), le système 31 de réalisation de tranchées peut être monté sur le châssis 2 de l'engin motorisé 1 de recyclage d'agrégats. Dans cette variante de réalisation, l'ensemble des moyens (systèmes, dispositifs,...) pour la réalisation des tranchées et le recyclage des agrégats, est monté sur un seul et même engin motorisé.Furthermore, in another variant embodiment (not shown), the system 31 for making trenches can be mounted on the frame 2 of the motorized machine 1 for recycling aggregates. In this variant embodiment, all of the means (systems, devices, etc.) for making the trenches and recycling the aggregates are mounted on one and the same motorized vehicle.

L'ensemble motorisé 30, tel que décrit ci-dessus, présente de nombreux avantages, et en particulier :

  • une économie de granulats naturels, pour produire du mortier ;
  • une réduction importante des coûts logistiques (l'évacuation des agrégats et l'approvisionnement en mortier étant supprimés) ; et
  • une réduction des coûts de main-d'œuvre.
The motorized assembly 30, as described above, has many advantages, and in particular:
  • an economy of natural aggregates, to produce mortar;
  • a significant reduction in logistics costs (the removal of aggregates and the supply of mortar being eliminated); and
  • reduced labor costs.

L'ensemble motorisé 30 génère ainsi une optimisation des coûts pour la
construction de réseaux, tout en améliorant l'impact environnemental.The motorized assembly 30 thus generates an optimization of the costs for
construction of networks, while improving the environmental impact.

Claims (12)

  1. Motorised vehicle for recycling aggregates, comprising a chassis (2) and an engine unit (3), said vehicle comprising, mounted on the chassis (2):
    - a device for collecting aggregates (7);
    - a crushing chamber (9) supplied with aggregates by said device for collecting aggregates (7), and configured to crush the aggregates and to supply crushed aggregates to an outlet;
    - a mixing device (10) connected to the crushing chamber (9) to receive at least one portion of the crushed aggregates available at the outlet of the crushing chamber (9) and configured to mix these crushed aggregates received with at least one binder to produce a mortar;
    - a screen (14) arranged between the crushing chamber (9) and the mixing device (10); and
    - a distribution channel (12) configured to distribute the produced mortar at the outlet of the mixing device (10),
    characterized by said crushing chamber (9) and said screen (14) each having a working direction (D1, D2) between the respective inlet thereof and outlet thereof, which is transversal with respect to a longitudinal direction (L) of the chassis (2) of the motorised vehicle (1), and said motorised vehicle (1) comprising transfer channels (19, 15), on the one hand, between the crushing chamber (9) and the screen (14), and on the other hand, between the screen (14) and the mixing device (10), these transfer channels (19, 15) each having a distribution direction (F1, F2) which is substantially parallel to said longitudinal direction (L).
  2. Vehicle according to claim 1, characterised in that the screen (14) is configured to separate the aggregates available at the outlet of the crushing chamber (9) according to a predetermined size, the aggregates of which the size is less than or equal to said predetermined size being transmitted to the mixing device (10) and the aggregates of which the size is greater than said predetermined size being sent back into the crushing chamber (9).
  3. Vehicle according to one of claims 1 and 2, characterised in that said device for collecting aggregates (7) comprises a suction device (16).
  4. Vehicle according to one of claims 1 and 2, characterised in that said device for collecting aggregates comprises a conveyor.
  5. Vehicle according to any one of the preceding claims, characterised in that the crushing chamber (9) is configured to function in depression.
  6. Vehicle according to any one of the preceding claims, characterised in that it comprises a weighing unit to weigh the crushed aggregates entering into the mixing device (10).
  7. Motorised unit for making trenches, characterised in that it comprises:
    - a system (31) for making trenches in the ground, comprising at least one trench digging device (32); and
    - a motorised vehicle (1) for recycling aggregates according to any one of claims 1 to 6, configured to use at least one portion of the aggregates produced during the digging of the trench by said trench making system (31).
  8. Unit according to claim 7, characterised in that said trench making system (31) comprises an autonomous auxiliary engine unit (34), and it is connected to said motorised vehicle (1) for recycling aggregates.
  9. Unit according to claim 8, characterised in that it comprises a means for controlling the forward speed of the trench making system (31) and the motorised vehicle (1) for recycling aggregates.
  10. Unit according to claim 9, characterised in that said trench making system is mounted on the chassis of the motorised vehicle for recycling aggregates.
  11. Unit according to any one of claims 7 to 10, characterised in that the trench making system (31) comprises a suction and collection system (33) and in that said device for collecting aggregates (7) forms part of said suction and collection system (33) of the trench making system (31).
  12. Unit according to any one of claims 7 to 10, characterised in that said device for collecting aggregates (7) comprises a mechanical loading means.
EP18702761.0A 2017-01-12 2018-01-11 Motorised vehicle for recycling aggregates and motorised unit for making trenches including such a motorised vehicle Active EP3568528B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750258A FR3061729B1 (en) 2017-01-12 2017-01-12 MOTORIZED ENGINE FOR RECYCLING AGGREGATES AND MOTORIZED ASSEMBLY FOR PRODUCING TRENCHES COMPRISING SUCH A MOTORIZED ENGINE.
PCT/FR2018/050066 WO2018130788A1 (en) 2017-01-12 2018-01-11 Motorised vehicle for recycling aggregates and motorised unit for making trenches including such a motorised vehicle

Publications (2)

Publication Number Publication Date
EP3568528A1 EP3568528A1 (en) 2019-11-20
EP3568528B1 true EP3568528B1 (en) 2021-01-27

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EP18702761.0A Active EP3568528B1 (en) 2017-01-12 2018-01-11 Motorised vehicle for recycling aggregates and motorised unit for making trenches including such a motorised vehicle

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EP (1) EP3568528B1 (en)
FR (1) FR3061729B1 (en)
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DE102019104218A1 (en) * 2019-02-19 2020-08-20 Wirtgen Gmbh Work train, comprising a tillage machine and another vehicle as well as an automated distance monitoring

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US4913586A (en) * 1988-08-15 1990-04-03 Analytical Liquid Waste Systems, Inc. Mixture for detoxification of contaminated soil
US4946307A (en) * 1989-08-15 1990-08-07 Astec Industries, Inc. Asphalt pavement recycling apparatus
US5342124A (en) * 1993-02-12 1994-08-30 Cmi Corporation Mixer having blades arranged in a discontinuous helical pattern
FR2749866B1 (en) * 1996-06-18 1998-08-28 Sdto TRENCHING DEVICE, WITH SUCTION EQUIPMENT
JP2000345578A (en) * 1999-06-08 2000-12-12 Komatsu Ltd Device and method of manufacturing superplasticized soil
FR2822862B1 (en) 2001-03-29 2003-08-08 S D T O MOTORIZED ROAD VEHICLE FOR PRODUCING TRENCHES IN THE GROUND
US10480135B2 (en) * 2017-01-03 2019-11-19 Roadtec, Inc. Cold in-place recycling with heating assembly including a heater for asphalt cement and a heat-modifying component
MX2019009484A (en) * 2017-02-14 2019-11-05 B Coe William Apparatus and method for preparing asphalt and aggregate mixture.
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FR3061729A1 (en) 2018-07-13
US10895061B2 (en) 2021-01-19
US20190376258A1 (en) 2019-12-12
EP3568528A1 (en) 2019-11-20
WO2018130788A1 (en) 2018-07-19
FR3061729B1 (en) 2019-10-18

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