EP0486379A1 - Material transporting apparatus, engine provided with such system and method for cleaning ducts - Google Patents

Material transporting apparatus, engine provided with such system and method for cleaning ducts Download PDF

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Publication number
EP0486379A1
EP0486379A1 EP91403026A EP91403026A EP0486379A1 EP 0486379 A1 EP0486379 A1 EP 0486379A1 EP 91403026 A EP91403026 A EP 91403026A EP 91403026 A EP91403026 A EP 91403026A EP 0486379 A1 EP0486379 A1 EP 0486379A1
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EP
European Patent Office
Prior art keywords
machine
hub
crushing
materials
hammers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP91403026A
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German (de)
French (fr)
Inventor
Jean Huwer
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SA Sacavi (societe D'achat Vente Construction Pour L'assainissement La Voirie L'industrie)
Original Assignee
SA Sacavi (societe D'achat Vente Construction Pour L'assainissement La Voirie L'industrie)
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Publication of EP0486379A1 publication Critical patent/EP0486379A1/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002—Cleaning sewer pipes by mechanical means
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing

Definitions

  • the present invention relates to a device for cleaning works, in particular sewers.
  • a suction group placed on the surface is connected by a large diameter pipe to the deposits to be evacuated.
  • the loading of the pipe is carried out by operators using manual means such as shovels.
  • Bulky objects whose dimensions are too large to enter the pipe or which risk blocking said pipe, in the event that they manage to penetrate therein, are removed manually by the operators located in the structure. These objects are then manually brought to the surface by a manhole.
  • the suction hoses are frequently blocked. To unblock it, it is imperative to dismantle various sections of the pipe, which is a long and tedious operation.
  • the "FAYOLLE” process proposed the extraction of sands by buckets, their drying by a helical screw followed by their bagging.
  • the sandbags are evacuated by an overhead conveyor to the manhole.
  • the bags are brought to the surface and then evacuated by trucks. This process is particularly expensive.
  • the "SIELWOLF” process used in Germany consists in emulsifying the deposits to be removed by injecting water at a high pressure of the order of 10 bars.
  • the emulsion is ground by a conventional mill with rejection of too hard objects, in the structure.
  • a drip table with a vibrating screen ensures the separation of non-crushed objects with a diameter greater than 6 mm.
  • the deposits are then wrung out and removed.
  • the "SIELWOLF” process is thus a complex implementation, and moreover, by the presence of the separation sieve, introduces odor nuisances which are particularly painful for local residents.
  • the materials are introduced into means for grinding / crushing the machine during the advance of the machine pulled into the structure and the debris having passed through said means for grinding / crushing are brought to the surface by aspiration.
  • Such a device makes it possible to raise only the materials scraped during the advance of the machine by the chute disposed at the front of it, and does not make it possible to ensure complete cleaning of a structure, such as '' a sewer, in particular a complete cleaning, of the sand chambers arranged at intervals in the structure.
  • the present invention proposes to provide an improved device allowing complete cleaning of the structure by bringing by suction all the materials found in the structure to pass through the grinding / crushing means, these being designed to grind objects of large diameter and limited hardness, and the transfer of objects of small diameter and high hardness.
  • the device according to the present invention is characterized by the fact that said machine is self-propelled, preferably with tracks, that said grinding / crushing means comprise a substantially cylindrical casing provided with an inlet and an outlet, a hub driven in rotation around an axis in said housing, and hammers mounted on the periphery of said hub so as to pivot each freely around an axis substantially parallel to the axis of the hub, said hammers being thus able to approach or move away in the passage of the materials sucked through the casing, and that said means for withdrawing the materials to be evacuated from said work comprise a section of conduit in communication with the inlet of said casing, so that the materials of the work are drawn by suction in said section of pipe, in the grinding / crushing means and in the outlet pipe.
  • FIGS. 1 to 4 the same references have been used to designate the same elements.
  • FIG. 1 an example of a grinding / crushing structure 1 can be seen, comprising a substantially cylindrical casing 2 inside which is placed a movable assembly composed of a plurality of hammers 4, fixed to the periphery of a hub 8.
  • the movable assembly comprises six hammers 4 regularly distributed over the periphery of the hub 8.
  • the hammers 4 of the device 1 according to the present invention have the shape of a turbine fin favoring the air circulation according to the arrows 9.
  • the hammers 4 include shredding knives 40 for tearing, in particular plastic sheets.
  • the hub 8 is rotated about an axis 6, advantageously in the direction of arrow 29, by motor means not shown.
  • the hammers 4 are pivotally mounted on the hub 8 around axes 7 substantially parallel to the axis 6.
  • a section of inlet conduit 3 is connected to the inlet of the casing advantageously located substantially at the hub 8, in the center of the casing 2, the outlet 5 of the radially placed casing being connected to an outlet duct 15.
  • the hub 8 In operation, the hub 8 is rotated about the axis 6. A flow of suction air generated by an external pumping group (FIG. 4) crosses the section of inlet duct 3, the casing 2, and the outlet duct 15 and thus causes the materials of the work to be cleaned to penetrate into the inlet duct section 3 and the casing 2. The rotation of the hub 8 and the associated hammers 4 causes the materials to move towards the periphery of the casing 2. The fragmented materials are entrained without appreciable modification towards the outlet 5 of the casing. Massive pieces of large dimensions are crushed, broken or shredded depending on their nature. Insofar as the part has too great a resistance to be crushed, broken or shredded, it is directly transmitted to the output 5.
  • FIG. 4 A flow of suction air generated by an external pumping group (FIG. 4) crosses the section of inlet duct 3, the casing 2, and the outlet duct 15 and thus causes the materials of the work to be cleaned to penetrate into the inlet duct section 3 and the casing 2.
  • the properties of the grinding / crushing means according to the present invention are in particular due to the freedom of movement of the hammers 4 relative to the hub 8.
  • the distance d between the ends of the hammers 4 is variable.
  • the hammers 4 can move apart to let through a large piece. According to its resistance, this part will be crushed between two hammers 4 or between a hammer 4 and the casing 2, or will be transferred to the outlet 5.
  • this hammer if the device sucks up a tool such as a hammer, this hammer if is not fragmented risk of blocking the discharge conduit 15 connected to the outlet 5.
  • the wooden handle of the hammer is crushed. There is therefore no risk of the outlet duct being blocked.
  • the metal mass of the hammer has too great a resistance to be able to be crushed or broken and will be transferred by the outlet 5 to the evacuation duct.
  • a tin can or a can of oil is crushed and / or shredded before coming out through outlet 5.
  • a brick is crushed, at least on its periphery, or broken, and its dimensions will be made compatible with the internal diameter of the exhaust duct.
  • the cross-sectional area of the inlet duct section 3 is greater than the cross-sectional area of the outlet 5 of the casing and of the discharge duct 15.
  • FIG. 3 one can see a machine 10 for cleaning sewers or similar works, of the device according to the present invention.
  • the machine 10 illustrated comprises, a tracked chassis 11.
  • the machine 10 is self-propelled.
  • it comprises an electric, thermal, or, advantageously hydraulic, motor 12.
  • the machine 10 comprises a reduction gear 13 making it possible to increase the available torque.
  • the motor 12 ensures the advancement on tracks 14 of the machine 10 and / or the rotation of the hub 8 of the grinding / crushing means (1).
  • the suction of deposits from the structure is advantageously favored by the presence of various tools such as, for example, an inlet cone (fig. 3) mounted at the end of the inlet duct section 3, a high pressure lance 17 , or buckets and manipulator arms, not shown in the figure.
  • the machine 10 is remotely controllable. It comprises data acquisition means 18, for example a television camera 19, and lighting devices 20.
  • An umbilical pipe 16 ensures the supply of the machine 10. It delivers for example the electric current necessary for the operation of the data acquisition device 18, the water under high pressure at the lance 17 and the oil under pressure at the engine 12.
  • FIG 4 we can see the implementation of the device according to the invention for cleaning a sand chamber 26 of a structure 24.
  • a machine 10 is lowered by a manhole 25 and disposed on the bottom of a sand chamber 26.
  • the evacuation duct 15 is connected to a tank 22 by means of a pumping group 27.
  • An operator present on the surface, for example in a cabin 23, supervises and remote controls the advancement of the machine 10 as the deposits are evacuated from the sand chamber 26 towards the tank 22 by suction. It controls the advancement of the machine 10 as well as the possible use of tools to promote aspiration. Similarly, it can cause an operation of the machine 10 or of a tool to move aside an object that is really too bulky to be able to be treated.
  • a bicycle is placed on the side by a manipulator arm, not shown.
  • a mobile unit 21 which groups together the operator's cabin 23 and the utilities (unit which can be separated, if necessary, from the rotation vehicle), the pumping unit 27 and the tank 22.
  • the unit 21 is mounted on a road chassis.
  • the discharge conduit 15 When the tank 22 is full, the discharge conduit 15 is disconnected, the tank 22 is transported by road to a controlled discharge where it is emptied. On its return, the conduit 15 can be connected to the same tank 22 or, to avoid interrupting the treatment, to another tank 22 present on the site.
  • the normal implementation of the method according to the present invention tion, by the use of a self-propelled machine 10 remotely controlled, making it possible to treat almost all the deposits present in a sand chamber 26 of a structure 24, eliminates or reduces the painful human interventions inside the structure . In addition, the cleaning of the structure 24 is accelerated.
  • the method according to the present invention makes it possible to reduce the time during which the structure is out of service.
  • the value of the vacuum created by the pumping unit 27 must be sufficient to drive most of the materials in the structure by suction into the section of the inlet duct (3) of the device.
  • the hub 8 of the transfer device 1 rotates at an angular speed of between 2000 and 3000 revolutions / minute, for an air flow varying between 3000 and 10000 m 3 / h and an absolute pressure of between 0 , 7 and 0.4 bar (corresponding substantially to a vacuum of 0.3 to 0.6 bar). In another example, a vacuum of 98% was used, which corresponds substantially to an absolute pressure of 0.02 bar.
  • the deposits have been evacuated with flow rates greater than the flow rates of current systems using evacuation conduits 15 with an internal diameter of between 100 and 200 mm (typically 150 mm).

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Disintegrating Or Milling (AREA)
  • Cleaning In General (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The invention relates to an apparatus for cleaning works, especially drains. It comprises a self-propelled machine provided with grinding/crushing means, comprising a substantially cylindrical casing (2), a hub (8) driven rotationally about a shaft (6) in the casing, and hammers (4) mounted on the periphery of the hub (8) so that each pivots freely about a pin (7) which is substantially parallel to the shaft (6) of the hub, the hammers thus being capable of moving nearer or away from the passage of the material sucked through the casing and means for taking up the material to be removed from the said works, which means comprise a duct section (3) in communication with the inlet of the casing, such that the material from the works is suctionally driven into the duct section (3), into the grinding/crushing means and into the outlet duct. <IMAGE>

Description

La présente invention se rapporte à un dispositif de curage d'ouvrages, notamment d'égouts.The present invention relates to a device for cleaning works, in particular sewers.

Il existe divers procédés de curage d'ouvrages.There are various processes for cleaning up works.

Dans un procédé traditionnel, un groupe d'aspiration placé à la surface est relié par un tuyau de grand diamètre aux dépôts à évacuer. Le chargement du tuyau est effectué par des opérateurs à l'aide de moyens manuels tels que des pelles. Les objets encombrants dont les dimensions sont trop grandes pour pénétrer dans le tuyau ou qui risquent de boucher ledit tuyau, au cas où ils réussiraient à y pénétrer, sont enlevés manuellement par les opérateurs se trouvant dans l'ouvrage. Ces objets sont ensuite remontés manuellement à la surface par une bouche d'égout. Malgré ces précautions, les tuyaux d'aspiration sont fréquemment bouchés. Pour les déboucher, il est impératif de démonter divers tronçons du tuyau, ce qui est une opération longue et pénible.In a traditional process, a suction group placed on the surface is connected by a large diameter pipe to the deposits to be evacuated. The loading of the pipe is carried out by operators using manual means such as shovels. Bulky objects whose dimensions are too large to enter the pipe or which risk blocking said pipe, in the event that they manage to penetrate therein, are removed manually by the operators located in the structure. These objects are then manually brought to the surface by a manhole. Despite these precautions, the suction hoses are frequently blocked. To unblock it, it is imperative to dismantle various sections of the pipe, which is a long and tedious operation.

Le procédé "FAYOLLE" a proposé l'extraction des sables par des godets, leur assèchement par une vis hélicoïdale suivi de leur ensachage. L'évacuation des sacs de sable est effectuée par un convoyeur aérien jusqu'à la bouche d'égout. Les sachets sont remontés à la surface puis évacués par camions. Ce procédé est particulièrement coûteux.The "FAYOLLE" process proposed the extraction of sands by buckets, their drying by a helical screw followed by their bagging. The sandbags are evacuated by an overhead conveyor to the manhole. The bags are brought to the surface and then evacuated by trucks. This process is particularly expensive.

Le procédé "SIELWOLF" utilisé en Allemagne consiste à émulsionner les dépôts à évacuer par injection d'eau à une pression élevée de l'ordre de 10 bars. L'émulsion est broyée par un broyeur classique avec rejet d'objets trop durs, dans l'ouvrage. Une table d'égouttage à tamis vibrant assure la séparation d'objets non concassés de diamètre supérieur à 6 mm. Les dépôts sont ensuite essorés puis évacués. Le procédé "SIELWOLF" est ainsi d'une mise en oeuvre complexe, et de plus, de par la présence du tamis de séparation, introduit des nuisances olfactives particulièrement pénibles pour les riverains.The "SIELWOLF" process used in Germany consists in emulsifying the deposits to be removed by injecting water at a high pressure of the order of 10 bars. The emulsion is ground by a conventional mill with rejection of too hard objects, in the structure. A drip table with a vibrating screen ensures the separation of non-crushed objects with a diameter greater than 6 mm. The deposits are then wrung out and removed. The "SIELWOLF" process is thus a complex implementation, and moreover, by the presence of the separation sieve, introduces odor nuisances which are particularly painful for local residents.

GB-A-2147970 décrit un dispositif de curage d'ouvrages, notamment d'égouts, comportant

  • - un engin déplaçable dans l'ouvrage et comprenant des moyens pour prélever des matières à évacuer dudit ouvrage et des moyens de broyage/concassage desdites matières prélevées et
  • - des moyens d'aspiration et de collecte des matières, raccordés par un conduit à la sortie desdits moyens de broyage/concassage dudit engin.
GB-A-2147970 describes a device for cleaning up works, in particular sewers, comprising
  • a machine movable in the structure and comprising means for removing materials to be removed from said structure and means for grinding / crushing said materials removed and
  • - Suction means and material collection, connected by a conduit to the outlet of said grinding / crushing means of said machine.

Dans ce dispositif, les matières sont introduites dans des moyens de broyage/concassage de l'engin lors de l'avance de l'engin tiré dans l'ouvrage et les débris ayant traversé lesdits moyens de broyage/concassage sont remontés à la surface par aspiration.In this device, the materials are introduced into means for grinding / crushing the machine during the advance of the machine pulled into the structure and the debris having passed through said means for grinding / crushing are brought to the surface by aspiration.

Un tel dispositif ne permet de remonter que les matières raclées lors de l'avance de l'engin par la goulotte disposée à l'avant de celui-ci, et ne permet pas d'assurer un curage complet d'un ouvrage, tel qu'un égout, notamment un curage complet, des chambres à sable disposées à intervalles dans l'ouvrage.Such a device makes it possible to raise only the materials scraped during the advance of the machine by the chute disposed at the front of it, and does not make it possible to ensure complete cleaning of a structure, such as '' a sewer, in particular a complete cleaning, of the sand chambers arranged at intervals in the structure.

La présente invention se propose de fournir un dispositif perfectionné permettant un curage complet de l'ouvrage en amenant par aspiration toutes les matières se trouvant dans l'ouvrage à traverser les moyens de broyage/concassage, ceux-ci étant conçus pour broyer des objets de grand diamètre et de dureté limitée, et le transfert d'objets de petit diamètre et de grande dureté.The present invention proposes to provide an improved device allowing complete cleaning of the structure by bringing by suction all the materials found in the structure to pass through the grinding / crushing means, these being designed to grind objects of large diameter and limited hardness, and the transfer of objects of small diameter and high hardness.

Le dispositif selon la présente invention se caractérise par le fait que ledit engin est automoteur, de préférence à chenilles, que lesdits moyens de broyage/concassage comprennent un carter sensiblement cylindrique pourvu d'une entrée et d'une sortie, un moyeu entraîné en rotation autour d'un axe dans ledit carter, et des marteaux montés à la périphérie dudit moyeu de façon à pivoter chacun librement autour d'un axe sensiblement parallèle à l'axe du moyeu, lesdits marteaux étant ainsi aptes à se rapprocher ou s'écarter au passage des matières aspirées à travers le carter, et que lesdits moyens pour prélever les matières à évacuer dudit ouvrage comprennent un tronçon de conduit en communication avec l'entrée dudit carter, de telle sorte que les matières de l'ouvrage sont entraînées par aspiration dans ledit tronçon de conduit, dans les moyens de broyage/concassage et dans le conduit de sortie.The device according to the present invention is characterized by the fact that said machine is self-propelled, preferably with tracks, that said grinding / crushing means comprise a substantially cylindrical casing provided with an inlet and an outlet, a hub driven in rotation around an axis in said housing, and hammers mounted on the periphery of said hub so as to pivot each freely around an axis substantially parallel to the axis of the hub, said hammers being thus able to approach or move away in the passage of the materials sucked through the casing, and that said means for withdrawing the materials to be evacuated from said work comprise a section of conduit in communication with the inlet of said casing, so that the materials of the work are drawn by suction in said section of pipe, in the grinding / crushing means and in the outlet pipe.

L'invention sera mieux comprise au moyen de la description ci-après et des figures annexées données comme des exemples non limitatifs parmi lesquels :

  • - la figure 1 est une vue en perspective écorchée d'un exemple de réalisation des moyens de broyage/concassage du dispositif selon la présente invention;
  • - les figures 2a et 2b sont des schémas explicatifs du fonctionnement du dispositif de la figure 1;
  • - la figure 3 est une vue en perspective d'un exemple de réalisation de l'engin du dispositif de curage d'ouvrages selon la présente invention;
  • - la figure 4 est une vue en perspective illustrant le dispositif de curage d'ouvrages selon la présente invention.
The invention will be better understood by means of the description below and the appended figures given as nonlimiting examples among which:
  • - Figure 1 is a cutaway perspective view of an exemplary embodiment of the grinding / crushing means of the device according to the present invention;
  • - Figures 2a and 2b are explanatory diagrams of the operation of the device of Figure 1;
  • - Figure 3 is a perspective view of an exemplary embodiment of the device of the cleaning device for structures according to the present invention;
  • - Figure 4 is a perspective view illustrating the device for cleaning works according to the present invention.

Sur les figures 1 à 4 on a utilisé les mêmes références pour désigner les mêmes éléments.In FIGS. 1 to 4, the same references have been used to designate the same elements.

Sur la figure 1, on peut voir un exemple de structure de broyage/concassage 1, comportant un carter 2 sensiblement cylindrique à l'intérieur duquel est placé un équipage mobile composé d'une pluralité de marteaux 4, fixés à la périphérie d'un moyeu 8. Dans l'exemple illustré sur la figure 1, l'équipage mobile comporte six marteaux 4 régulièrement répartis sur la périphérie du moyeu 8. Avantageusement les marteaux 4 du dispositif 1 selon la présente invention, ont une forme en ailette de turbine favorisant la circulation de l'air selon les flèches 9. Avantageusement, les marteaux 4 comportent des couteaux dilacérateurs 40 pour déchirer, notamment des feuilles en matière plastique. Le moyeu 8 est entraîné en rotation autour d'un axe 6, avantageusement dans le sens de la flèche 29, par des moyens moteurs non représentés. Les marteaux 4 sont montés pivotants sur le moyeu 8 autour d'axes 7 sensiblement parallèles à l'axe 6. Un tronçon de conduit d'entrée 3 est raccordé à l'entrée du carter avantageusement située sensiblement au niveau du moyeu 8, au centre du carter 2, la sortie 5 du carter placée radialement étant reliée à un conduit de sortie 15.In FIG. 1, an example of a grinding / crushing structure 1 can be seen, comprising a substantially cylindrical casing 2 inside which is placed a movable assembly composed of a plurality of hammers 4, fixed to the periphery of a hub 8. In the example illustrated in FIG. 1, the movable assembly comprises six hammers 4 regularly distributed over the periphery of the hub 8. Advantageously, the hammers 4 of the device 1 according to the present invention have the shape of a turbine fin favoring the air circulation according to the arrows 9. Advantageously, the hammers 4 include shredding knives 40 for tearing, in particular plastic sheets. The hub 8 is rotated about an axis 6, advantageously in the direction of arrow 29, by motor means not shown. The hammers 4 are pivotally mounted on the hub 8 around axes 7 substantially parallel to the axis 6. A section of inlet conduit 3 is connected to the inlet of the casing advantageously located substantially at the hub 8, in the center of the casing 2, the outlet 5 of the radially placed casing being connected to an outlet duct 15.

En fonctionnement, le moyeu 8 est mis en rotation autour de l'axe 6. Un flux d'air d'aspiration engendré par un groupe de pompage extérieur (figure 4) traverse le tronçon de conduit d'entrée 3, le carter 2, et le conduit de sortie 15 et entraîne ainsi les matières de l'ouvrage à curer à pénétrer dans le tronçon de conduit d'entrée 3 et le carter 2. La rotation du moyeu 8 et des marteaux 4 associés, provoque le déplacement des matières vers la périphérie du carter 2. Les matières fragmentées sont entraînées sans modification notable vers la sortie 5 du carter. Des pièces massives de dimensions importantes sont broyées, cassées ou dilacérées selon leur nature. Dans la mesure où la pièce a une résistance trop importante pour être broyée, cassée ou dilacérée, elle est directement transmise à la sortie 5. Les propriétés des moyens de broyage/concassage selon la présente invention sont notamment dues à la liberté de mouvement des marteaux 4 par rapport au moyeu 8. Ainsi, comme on peut le voir sur la figure 2, la distance d entre les extrémités des marteaux 4 est variable. Les marteaux 4 peuvent s'écarter pour laisser passer une pièce de taille importante. Selon sa résistance, cette pièce sera broyée entre deux marteaux 4 ou entre un marteau 4 et le carter 2, ou sera transférée à la sortie 5. Par exemple, si le dispositif aspire un outil tel qu'un marteau, ce marteau s'il n'est pas fragmenté risque de boucher le conduit d'évacuation 15 connecté à la sortie 5. Le manche en bois du marteau est broyé. Ainsi le conduit de sortie ne risque pas d'être bouché. Par contre, la masse métallique du marteau présente une résistance trop grande pour pouvoir être broyée ou cassée et sera transférée par la sortie 5 au conduit d'évacuation.In operation, the hub 8 is rotated about the axis 6. A flow of suction air generated by an external pumping group (FIG. 4) crosses the section of inlet duct 3, the casing 2, and the outlet duct 15 and thus causes the materials of the work to be cleaned to penetrate into the inlet duct section 3 and the casing 2. The rotation of the hub 8 and the associated hammers 4 causes the materials to move towards the periphery of the casing 2. The fragmented materials are entrained without appreciable modification towards the outlet 5 of the casing. Massive pieces of large dimensions are crushed, broken or shredded depending on their nature. Insofar as the part has too great a resistance to be crushed, broken or shredded, it is directly transmitted to the output 5. The properties of the grinding / crushing means according to the present invention are in particular due to the freedom of movement of the hammers 4 relative to the hub 8. Thus, as can be seen in FIG. 2, the distance d between the ends of the hammers 4 is variable. The hammers 4 can move apart to let through a large piece. According to its resistance, this part will be crushed between two hammers 4 or between a hammer 4 and the casing 2, or will be transferred to the outlet 5. For example, if the device sucks up a tool such as a hammer, this hammer if is not fragmented risk of blocking the discharge conduit 15 connected to the outlet 5. The wooden handle of the hammer is crushed. There is therefore no risk of the outlet duct being blocked. On the other hand, the metal mass of the hammer has too great a resistance to be able to be crushed or broken and will be transferred by the outlet 5 to the evacuation duct.

Une boîte de conserve ou un bidon d'huile est broyé et/ou dilacéré avant de ressortir par la sortie 5.A tin can or a can of oil is crushed and / or shredded before coming out through outlet 5.

Une brique est broyée, tout au moins sur sa périphérie, ou cassée, et ses dimensions seront rendues compatibles avec le diamètre interne du conduit d'évacuation.A brick is crushed, at least on its periphery, or broken, and its dimensions will be made compatible with the internal diameter of the exhaust duct.

Avantageusement, l'aire de la section du tronçon de conduit d'entrée 3 est supérieure à l'aire de la section de la sortie 5 du carter et du conduit d'évacuation 15.Advantageously, the cross-sectional area of the inlet duct section 3 is greater than the cross-sectional area of the outlet 5 of the casing and of the discharge duct 15.

Sur la figure 3, on peut voir un engin 10 de curage d'égouts ou d'ouvrages similaires, du dispositif selon la présente invention. L'engin 10 illustré comporte, un châssis chenillé 11.In FIG. 3, one can see a machine 10 for cleaning sewers or similar works, of the device according to the present invention. The machine 10 illustrated comprises, a tracked chassis 11.

Avantageusement, l'engin 10 est automoteur. Par exemple, il comporte un moteur 12 électrique, thermique, ou, avantageusement hydraulique. Dans l'exemple illustré, l'engin 10 comporte un réducteur 13 permettant d'augmenter le couple disponible. Le moteur 12 assure l'avancement sur des chenilles 14 de l'engin 10 et/ou la rotation du moyeu 8 des moyens de broyage/concassage (1). L'aspiration des dépôts de l'ouvrage est avantageusement favorisée par la présence de divers outils comme par exemple un cône d'entrée (fig.3) monté à l'extrémité du tronçon de conduit d'entrée 3, une lance haute pression 17, ou des godets et des bras manipulateurs, non représentés sur la figure.Advantageously, the machine 10 is self-propelled. For example, it comprises an electric, thermal, or, advantageously hydraulic, motor 12. In the example illustrated, the machine 10 comprises a reduction gear 13 making it possible to increase the available torque. The motor 12 ensures the advancement on tracks 14 of the machine 10 and / or the rotation of the hub 8 of the grinding / crushing means (1). The suction of deposits from the structure is advantageously favored by the presence of various tools such as, for example, an inlet cone (fig. 3) mounted at the end of the inlet duct section 3, a high pressure lance 17 , or buckets and manipulator arms, not shown in the figure.

Avantageusement, l'engin 10 selon la présente invention est télécommandable. Il comporte des moyens d'acquisition de données 18, par exemple une caméra de télévision 19, et des dispositifs d'éclairage 20. Une conduite ombilicale 16 assure l'alimentation de l'engin 10. Elle délivre par exemple le courant électrique nécessaire au fonctionnement du dispositif d'acquisition de données 18, l'eau sous haute pression à la lance 17 et l'huile sous pression au moteur 12.Advantageously, the machine 10 according to the present invention is remotely controllable. It comprises data acquisition means 18, for example a television camera 19, and lighting devices 20. An umbilical pipe 16 ensures the supply of the machine 10. It delivers for example the electric current necessary for the operation of the data acquisition device 18, the water under high pressure at the lance 17 and the oil under pressure at the engine 12.

Sur la figure 4, on peut voir la mise en oeuvre du dispositif selon l'invention pour le curage d'une chambre à sable 26 d'un ouvrage 24. Un engin 10 est descendu par une bouche d'égout 25 et disposé sur le fond d'une chambre à sable 26. Le conduit d'évacuation 15 est raccordé à une cuve 22 par l'intermédiaire d'un groupe de pompage 27. Un opérateur présent à la surface, par exemple dans une cabine 23, supervise et télécommande l'avancement de l'engin 10 au fur et à mesure de l'évacuation par aspiration des dépôts de la chambre à sable 26 vers la cuve 22. Il commande l'avancement de l'engin 10 ainsi que l'utilisation éventuelle d'outils pour favoriser l'aspiration. De même, il peut provoquer une manoeuvre de l'engin 10 ou d'un outil pour écarter un objet vraiment trop encombrant pour pouvoir être traité. Par exemple, un vélo est placé sur le côté par un bras manipulateur, non représenté.In Figure 4, we can see the implementation of the device according to the invention for cleaning a sand chamber 26 of a structure 24. A machine 10 is lowered by a manhole 25 and disposed on the bottom of a sand chamber 26. The evacuation duct 15 is connected to a tank 22 by means of a pumping group 27. An operator present on the surface, for example in a cabin 23, supervises and remote controls the advancement of the machine 10 as the deposits are evacuated from the sand chamber 26 towards the tank 22 by suction. It controls the advancement of the machine 10 as well as the possible use of tools to promote aspiration. Similarly, it can cause an operation of the machine 10 or of a tool to move aside an object that is really too bulky to be able to be treated. For example, a bicycle is placed on the side by a manipulator arm, not shown.

Avantageusement, on utilise une unité mobile 21 regroupant la cabine de l'opérateur 23 et les utilités, (unité qui peut être séparée, le cas échéant, du véhicule de rotation), le groupe de pompage 27 et la cuve 22. Dans l'exemple avantageux illustré sur la figure 4, l'unité 21 est montée sur un châssis routier.Advantageously, a mobile unit 21 is used which groups together the operator's cabin 23 and the utilities (unit which can be separated, if necessary, from the rotation vehicle), the pumping unit 27 and the tank 22. In the advantageous example illustrated in FIG. 4, the unit 21 is mounted on a road chassis.

Lorsque la cuve 22 est pleine, on déconnecte le conduit d'évacuation 15, on effectue le transport routier de la cuve 22 vers une décharge contrôlée où l'on procède à sa vidange. A son retour, le conduit 15 peut être raccordé à la même cuve 22 ou, pour éviter d'interrompre le traitement, à une autre cuve 22 présente sur le chantier.When the tank 22 is full, the discharge conduit 15 is disconnected, the tank 22 is transported by road to a controlled discharge where it is emptied. On its return, the conduit 15 can be connected to the same tank 22 or, to avoid interrupting the treatment, to another tank 22 present on the site.

Comme on peut le voir sur la figure 4, la mise en oeuvre normale du procédé selon la présente invention, de par l'utilisation d'un engin 10 automoteur télécommandé, permettant de traiter quasiment tous les dépôts présents dans une chambre à sable 26 d'un ouvrage 24, supprime ou réduit les interventions humaines pénibles à l'intérieur de l'ouvrage. De plus, on accélère le curage de l'ouvrage 24. Le procédé selon la présente invention permet de réduire la durée pendant laquelle l'ouvrage est hors service. La valeur de la dépression créée par le groupe de pompage 27 doit être suffisante pour entraîner par aspiration l'essentiel des matières de l'ouvrage dans le tronçon, de conduit d'entrée (3) du dispositif.As can be seen in FIG. 4, the normal implementation of the method according to the present invention tion, by the use of a self-propelled machine 10 remotely controlled, making it possible to treat almost all the deposits present in a sand chamber 26 of a structure 24, eliminates or reduces the painful human interventions inside the structure . In addition, the cleaning of the structure 24 is accelerated. The method according to the present invention makes it possible to reduce the time during which the structure is out of service. The value of the vacuum created by the pumping unit 27 must be sufficient to drive most of the materials in the structure by suction into the section of the inlet duct (3) of the device.

Dans un exemple de réalisation, le moyeu 8 du dispositif de transfert 1 tourne a une vitesse angulaire comprise entre 2000 et 3000 tours/minute, pour un débit d'air variant entre 3000 et 10000 m3/h et une pression absolue comprise entre 0,7 et 0,4 bar (correspondant sensiblement à un dépression de 0,3 à 0,6 bar). Dans un autre exemple, on a utilisé un vide de 98%, ce qui correspond sensiblement à une pression absolue de 0,02 bar. Selon leur nature, les dépôts ont été évacués avec des débits supérieurs aux débits des systèmes actuels en utilisant des conduits d'évacuation 15 de diamètre interne compris entre 100 et 200 mm (typiquement 150 mm).In an exemplary embodiment, the hub 8 of the transfer device 1 rotates at an angular speed of between 2000 and 3000 revolutions / minute, for an air flow varying between 3000 and 10000 m 3 / h and an absolute pressure of between 0 , 7 and 0.4 bar (corresponding substantially to a vacuum of 0.3 to 0.6 bar). In another example, a vacuum of 98% was used, which corresponds substantially to an absolute pressure of 0.02 bar. Depending on their nature, the deposits have been evacuated with flow rates greater than the flow rates of current systems using evacuation conduits 15 with an internal diameter of between 100 and 200 mm (typically 150 mm).

Claims (5)

1 - Dispositif de curage d'ouvrages, notamment d'égouts, comportant - un engin déplaçable dans l'ouvrage et comprenant des moyens pour prélever des matières à évacuer dudit ouvrage et des moyens de broyage/concassage desdites matières prélevées et - des moyens d'aspiration et de collecte des matières, raccordés par un conduit à la sortie desdits moyens de broyage/concassage dudit engin,
caractérisé par le fait que ledit engin (10) est automoteur, de préférence à chenilles (14), que lesdits moyens de broyage/concassage comprennent un carter sensiblement cylindrique (2) pourvu d'une entrée et d'une sortie, un moyeu (8) entraîné en rotation autour d'un axe (6) dans ledit carter, et des marteaux (4) montés à la périphérie dudit moyeu (8) de façon à pivoter chacun librement autour d'un axe (7) sensiblement parallèle à l'axe (6) du moyeu, lesdits marteaux étant ainsi aptes à se rapprocher ou s'écarter au passage des matières aspirées à travers le carter, et que lesdits moyens pour prélever les matières à évacuer dudit ouvrage comprennent un tronçon de conduit (3) en communication avec l'entrée dudit carter, de telle sorte que les matières de l'ouvrage sont entraînées par aspiration dans ledit tronçon de conduit (3), dans les moyens de broyage/concassage et dans le conduit de sortie. 2 - Dispositif selon la revendication 1, caractérisé par le fait que ledit engin (10) comporte un moteur (12), notamment hydraulique, assurant l'entraînement de l'engin (10) et/ou du moyeu (8) des moyens de broyage/concassage.1 - Device for cleaning up works, in particular sewers, comprising a machine movable in the structure and comprising means for withdrawing materials to be removed from said structure and means for grinding / crushing said collected materials and means for suction and collection of materials, connected by a conduit to the outlet of said grinding / crushing means of said machine,
characterized by the fact that said machine (10) is self-propelled, preferably with tracks (14), that said grinding / crushing means comprise a substantially cylindrical casing (2) provided with an inlet and an outlet, a hub ( 8) driven in rotation about an axis (6) in said housing, and hammers (4) mounted on the periphery of said hub (8) so as to pivot each freely around an axis (7) substantially parallel to the 'axis (6) of the hub, said hammers being thus able to approach or move aside in the passage of the materials sucked through the casing, and that said means for withdrawing the materials to be evacuated from said structure comprise a section of conduit (3) in communication with the inlet of said casing, so that the materials of the structure are drawn by suction into said section of conduit (3), into the grinding / crushing means and into the outlet conduit. 2 - Device according to claim 1, characterized in that said machine (10) comprises a motor (12), in particular hydraulic, ensuring the drive of the machine (10) and / or the hub (8) of the means of crushing / crushing. 3 - Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé par le fait que les marteaux (4) présentent une forme en ailette de turbine.3 - Device according to any one of claims 1 and 2, characterized in that the hammers (4) have a turbine blade shape. 4 - Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que les marteaux (4) comportent des couteaux dilacérateurs (40) pour déchirer notamment des feuilles en matière plastique se trouvant dans les matières aspirées.4 - Device according to any one of claims 1 to 3, characterized in that the hammers (4) comprise shredding knives (40) for tearing in particular plastic sheets found in the material sucked. 5 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il comprend des moyens de télécommande de l'engin (10), ledit engin comportant de préférence des moyens d'acquisition de données, tels qu'une caméra de télévision (19), et des moyens d'éclairage (20).5 - Device according to any one of the preceding claims, characterized in that it comprises means for remote control of the machine (10), said machine preferably comprising data acquisition means, such as a camera television (19), and lighting means (20). 6 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait que les moyens d'aspiration et de collecte de matière comprennent un groupe de pompage (27) et une cuve (22) de préférence sous forme d'unité mobile (21) montée sur un châssis routier.6 - Device according to any one of the preceding claims, characterized in that the suction and material collection means comprise a pumping group (27) and a tank (22) preferably in the form of a mobile unit ( 21) mounted on a road chassis.
EP91403026A 1990-11-12 1991-11-12 Material transporting apparatus, engine provided with such system and method for cleaning ducts Withdrawn EP0486379A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9013986A FR2669059A1 (en) 1990-11-12 1990-11-12 DEVICE FOR TRANSFERRING MATERIALS, DEVICE COMPRISING SUCH DEVICE AND METHOD FOR CURING SEWERS.
FR9013986 1990-11-12

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EP0486379A1 true EP0486379A1 (en) 1992-05-20

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EP91403026A Withdrawn EP0486379A1 (en) 1990-11-12 1991-11-12 Material transporting apparatus, engine provided with such system and method for cleaning ducts

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EP (1) EP0486379A1 (en)
DE (1) DE486379T1 (en)
ES (1) ES2033662T1 (en)
FR (1) FR2669059A1 (en)

Cited By (6)

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FR2693220A1 (en) * 1992-07-06 1994-01-07 Sacavi Sa Remote controlled hydraulically powered sewer cleaning method - uses tracked vehicle with front mounted cutter/grinder and outlet pipe discharging into barge with data collectors mounted on front above suction pipe
DE9314955U1 (en) * 1992-11-12 1994-03-17 Rohrreinigung Haas GmbH & Co., 70372 Stuttgart Device for cleaning sewers
AU682631B2 (en) * 1992-11-11 1997-10-09 Alan Alexander Lake Treatment device
EP1215339A2 (en) * 2000-12-18 2002-06-19 Jan Klinge System for placing and removing draining systems
EP1884601A1 (en) * 2006-08-04 2008-02-06 Lucio Paolo Emilio Oggiano Apparatus for beach feeding
WO2012061888A1 (en) * 2010-11-12 2012-05-18 Jason James Mordey Material clearing machine

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CN103672293B (en) * 2013-12-17 2016-05-25 王军 The amphibious working pipe pipeline robot of a kind of multi-dimensions test
CN110857175B (en) * 2018-08-24 2021-09-10 九阳股份有限公司 Feeding device
CN112371258B (en) * 2020-12-05 2022-11-25 中建三局绿色产业投资有限公司 Sewer sludge cleaning mechanism for factory

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GB1319089A (en) * 1969-08-05 1973-05-31 Breckner F O Method of crushing preferably granular field produce corn cobs and similar agricultural produce and centrifugal disintegrator for carrying out this method
FR2518427A1 (en) * 1981-12-17 1983-06-24 Engelbrecht & Lemmerbrock DEVICE FOR CRUSHING AND PNEUMATIC HANDLING OF CORN EARS
FR2535227A1 (en) * 1982-10-27 1984-05-04 Kupczik Gunter METHOD AND DEVICE FOR CLEANING DRAINAGE PIPES
GB2147970A (en) * 1983-09-23 1985-05-22 Water Res Centre Removing debris from ducts
GB2171331A (en) * 1985-01-14 1986-08-28 Christy & Norris Ltd Improvements in and relating to mills
DE8623651U1 (en) * 1986-09-03 1986-10-09 Pekico Kanalreinigung + Entsorgung GmbH & Co KG, 4938 Schieder-Schwalenberg Device for cleaning sewers
WO1988008939A1 (en) * 1987-05-12 1988-11-17 Loefgren Ulf Device for operation in pipelines
EP0389249A1 (en) * 1989-03-21 1990-09-26 Schiller-Pfeiffer, Inc. Combination leaf and lawn debris comminuting vacuum and wood chipper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693220A1 (en) * 1992-07-06 1994-01-07 Sacavi Sa Remote controlled hydraulically powered sewer cleaning method - uses tracked vehicle with front mounted cutter/grinder and outlet pipe discharging into barge with data collectors mounted on front above suction pipe
AU682631B2 (en) * 1992-11-11 1997-10-09 Alan Alexander Lake Treatment device
DE9314955U1 (en) * 1992-11-12 1994-03-17 Rohrreinigung Haas GmbH & Co., 70372 Stuttgart Device for cleaning sewers
EP1215339A2 (en) * 2000-12-18 2002-06-19 Jan Klinge System for placing and removing draining systems
EP1215339A3 (en) * 2000-12-18 2002-10-23 Jan Klinge System for placing and removing draining systems
EP1884601A1 (en) * 2006-08-04 2008-02-06 Lucio Paolo Emilio Oggiano Apparatus for beach feeding
WO2012061888A1 (en) * 2010-11-12 2012-05-18 Jason James Mordey Material clearing machine

Also Published As

Publication number Publication date
ES2033662T1 (en) 1993-04-01
DE486379T1 (en) 1993-02-25
FR2669059A1 (en) 1992-05-15

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