EP0440573A1 - Downstream bar screen cleaner, ejecting upstream, comprising a hinged comb that goes down pivoted and goes up again, horizontaly opened while cleaning the bar screen and a mobile upstream overflow - Google Patents

Downstream bar screen cleaner, ejecting upstream, comprising a hinged comb that goes down pivoted and goes up again, horizontaly opened while cleaning the bar screen and a mobile upstream overflow Download PDF

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Publication number
EP0440573A1
EP0440573A1 EP91480010A EP91480010A EP0440573A1 EP 0440573 A1 EP0440573 A1 EP 0440573A1 EP 91480010 A EP91480010 A EP 91480010A EP 91480010 A EP91480010 A EP 91480010A EP 0440573 A1 EP0440573 A1 EP 0440573A1
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EP
European Patent Office
Prior art keywords
comb
cam
rake
screen
teeth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91480010A
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German (de)
French (fr)
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EP0440573B1 (en
Inventor
Claude Poskin
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SOREM INDUSTRIE SA
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SOREM INDUSTRIE SA
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Priority to AT91480010T priority Critical patent/ATE91521T1/en
Publication of EP0440573A1 publication Critical patent/EP0440573A1/en
Application granted granted Critical
Publication of EP0440573B1 publication Critical patent/EP0440573B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
    • E02B8/023—Arresting devices for waterborne materials
    • E02B8/026—Cleaning devices

Definitions

  • the invention relates to a downstream screen, ejecting upstream, comprising an articulated comb which descends, retracted, and rises open horizontally by screen, and an upstream mobile weir.
  • the known screens take up a large volume. They cannot be placed against the wall of the effluent inlet duct.
  • the screen according to the invention tends to solve all these problems.
  • the articulated comb is provided with a first cam opening cam, intended to open the comb horizontally, this cam is arranged at the eye of the comb on the upper face of said comb, when it is in open position.
  • This opening cam cooperates at the end of the race, when the comb is raised or retracted vertically and the rake descends at the end of the race, so that it comes to abut against a reset stop, placed at the level of the raceway, on the lower part of the chassis, said cam cooperates with the stop so that the comb pivots about its articulation axis, to open in returning with the teeth in a horizontal position, before the ascent by the screen downstream of the grid.
  • This rake opening cam can have the shape of a square.
  • the chassis may also include, in its lower part, an end of travel stop.
  • the comb may include another cam which raises or retracts the comb of the rake when it descends, said cam abuts against the upper part of the plane of the weir.
  • Said cam has a triangular shape, the top of which is truncated and directed downwards when the comb is horizontal; this triangular shape ensures the pivoting of the comb around its axis of articulation, until complete lifting, in an almost vertical position, and at its retraction.
  • the lifting or retracting cam can be, at least, one of the teeth of the comb which has the characteristic shape of the cam described above, in order to obtain the desired movement.
  • the rake can comprise a cam at the level of the upper part of its frame, said cam acts with another complementary cam, arranged on the body of a pendulum telescopic ejector, placed in the upper part of the screen of the screen.
  • the rake cam comes opposite the ejector cam, their respective shape allows the pendulum telescopic ejector to deviate from the vertical, upstream, and thus eject all the detritus on the comb teeth.
  • Another characteristic of the invention resides in the shape of the teeth of the comb which act as lifting cams for the plane of the movable weir and form the cheeks of a rake capacity.
  • the lateral teeth are higher than the other teeth of the comb, so as to act as a capacity for the rake and thus obtain a larger useful volume for the rake.
  • These taller side teeth are the first to enter contact against the lower plane of the mobile weir.
  • the cams facing each other have the shape of a triangle, the top of which is truncated; the cams are fixed, one to the rake, the other to the body of the ejector, by their bases which are mounted vertically.
  • Figure 1 is a view of the screen viewed from the front upstream.
  • Figure 2 is a section along the axis A-A, shown in Figure 1. It allows to highlight the different movements of the rake, the comb, the weir and the pendulum telescopic ejector.
  • Figure 3 is a schematic view, showing the rearming device of the rake in the lower part of the chassis.
  • Figure 4 is a schematic view, showing the passage of the rake with its comb, which abuts against the inclined plane of the movable weir and straightens it towards the vertical.
  • Figure 5 is a schematic view of the screen, highlighting the inversion of the rake at the time of descent. Said rake, by its cam, abuts against the upper part of the inclined plane of the weir which raises the comb of the rake to a quasi-vertical position allowing its retraction until the descent into the lower part of the chassis of the screen.
  • Figure 6 schematically highlights the upper frame of the rake, with its cam, which acts against the cam of the body of the pendulum telescopic ejector.
  • Figure 7 is a view according to Figure 6, showing the rise of the rake thanks to its cam which deports the pendulum telescopic ejector from vertical to upstream.
  • Figure 8 is a schematic view, showing the oscillating and telescopic appearance of the ejector according to the invention.
  • Figure 9 is a perspective view of the telescopic pendulum ejector. It highlights, by arrows, the different movements of said ejector.
  • Figure 10 highlights the rake, with its frame, as well as its comb.
  • the comb is shown open, with the teeth horizontal, in mixed lines; the comb is shown in the retracted or raised position, with the vertical teeth.
  • the screen 1, according to the invention, is of the type composed of a rake 2, with an articulated comb 3.
  • the teeth of the comb 4 pass through a grid 5, from bottom to top.
  • the comb 3 is retracted on the descent. He is armed to climb up a mobile weir 6, located upstream of the grid 5, a mechanical ejector 7, a gear motor 8 which actuates the movement of the rake along a raceway 9 provided in the chassis 10 of screen 1.
  • the comb 3 and / or the rake 2 comprise means acting as a cam which, during the stroke of said rake or said comb, act directly on said articulated comb 3, to open or close it, or on other members such as the mobile weir 6 or the telescopic pendulum ejector 7.
  • the rake 2 comprises an articulated comb 3.
  • This articulated comb 3 comprises a cam 11 which is an opening cam for the rake 2 intended to open the comb 3 horizontally.
  • This cam 11 is arranged at eye level 12 of the hinge pin 14 of comb 3 on the rake 2.
  • this cam is arranged at eye level of comb 2 on the upper face. teeth 17, when the latter is in the open position.
  • This opening or resetting cam 11 cooperates, at the end of the race, with an opening resetting stop 15. This stop can be welded to the lower part of the chassis 10.
  • Said cam 11 cooperates with the stop 15, so so that the comb 3, which pivots about its articulation axis 14, can open by returning with the teeth 17 in a horizontal position before the ascent, for screening by the downstream of the grid 5.
  • this cam 11 has the shape of a square.
  • the chassis 10 can also include, in addition, in its lower part, another end of travel stop 16.
  • the rake 3 / support frame 27 assembly thus armed in the open position, finally comes up against the end of travel stop 16, which causes slack on the winch strap actuated by the gear motor 8, which triggers at its round the descent stop, then a new climb of the rake.
  • the weir 6 comes into contact with a stop 23 mounted on the chassis of the screen 1.
  • a shock absorber can be provided 24.
  • the comb 3 may include another cam 25 which ensures the lifting and retraction of said comb 3 of the rake 2, when the latter descends.
  • Said cam 25 abuts against the upper part 22 of the plane of the weir 6.
  • Said cam 25 has a triangular shape whose apex is truncated and directed downwards when the comb 3 is horizontal; this triangular shape ensures the pivoting of the comb 3 around its articulation axis 14 and this, until the complete lifting in a quasi-vertical position and its retraction.
  • the lifting or retracting cam 25 can be, as shown in FIG. 4 and perfectly visible in FIG. 10, one of the teeth 17 of the comb 3. In FIG. 10, it is clearly demonstrated that this cam is the middle tooth 25 of the teeth 17 of the comb 3.
  • the characteristic shape of this cam makes it possible to obtain the desired movement, that is to say the complete pivoting of the teeth of the comb around the axis of articulation 14, up to 1 'retraction or complete lifting (see the teeth shown in dotted lines in Figure 10).
  • the rake 2 may include a cam 26 at the top of its frame 27.
  • Said cam 26 acts with another complementary cam 28 disposed on the body 29 of the pendulum telescopic ejector 30 placed in the upper part of the chassis 10 of the screen 1.
  • the cam 26 of the rake 2 comes opposite the cam 28 of the ejector 30.
  • Their respective shapes allow the pendulum telescopic ejector 30 to deviate from the vertical upstream and thereby eject all the detritus on the teeth 17 of the comb 3.
  • the cams 26, 28, which face each other, have a triangle shape, the apex of which is truncated.
  • the cams are fixed, one to the rake 2, at the upper part 27 of its frame, the other to the body 29 of the ejector 30 and this, by their bases which are mounted vertically.
  • Figure 7 highlights, by arrows, the movement of the pendulum telescopic ejector.
  • the rake cam may not be arranged on the frame, but directly on the cable.
  • Figure 10 shows that the side teeth 31, 32 of the comb 3 are higher than the other teeth and form the cheeks of a capacity.
  • the rake 2 comes into contact with the lower plane of the mobile weir 6, first by its lateral teeth 31, 32, without causing the detritus to fall downstream of the inclined plane of the weir, until that said plan of the mobile weir 6 allowed the rake 2 to pass.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Housing For Livestock And Birds (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Catching Or Destruction (AREA)
  • Cleaning In General (AREA)
  • Secondary Cells (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Electrostatic Separation (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The subject of the invention is a downstream bar screen cleaner. The bar screen cleaner (1) is of the type formed from: - a rake (2), with an articulated comb (3); the teeth of the comb (4) traversing a grid (5), from bottom to top, the comb (3) is retracted during the descent, it is equipped, in order to clean when rising up again, - with a mobile outlet (6), located upstream of the grid (5), - a mechanical ejector (7), - a motor reduction gear (8) which actuates the movement of the rake along a running track provided in the chassis of the bar screen cleaner (1); the comb (3) or the rake (2) comprising means serving as a cam which, during the travel of the said rake, act directly on the said articulated comb (3) in order to open it or to close it, or on other members. The invention applies to bar screen cleaners. <IMAGE>

Description

L'invention a pour objet un dégrilleur aval, éjectant par l'amont, comportant un peigne articulé qui descend, escamoté, et remonte ouvert horizontalement en dégrillant, et un déversoir mobile amont.The invention relates to a downstream screen, ejecting upstream, comprising an articulated comb which descends, retracted, and rises open horizontally by screen, and an upstream mobile weir.

Il existe de nombreux types de dégrilleur aval. Ces dégrilleurs sont composés généralement de plusieurs parties et ils nécessitent l'utilisation de plusieurs moto-réducteurs pour agir sur le rateau, l'escamotage du peigne, le déversoir mobile, l'éjecteur, etc... Ces dégrilleurs, du fait de leur complexité, sont sensibles à la profondeur de l'arrivée des effluents.There are many types of downstream screens. These screens are generally composed of several parts and they require the use of several geared motors to act on the rake, the retraction of the comb, the mobile weir, the ejector, etc. These screens, due to their complexity, are sensitive to the depth of the effluent arrival.

Quelques pièces mobiles sont immergées en permanence, ce qui crée des problèmes de maintenance.Some moving parts are permanently submerged, which creates maintenance problems.

Ces dégrilleurs complexes se trouvent parfois bloqués en pied de grille par les détritus en pied de grille.These complex screens are sometimes blocked at the bottom of the grid by the trash at the bottom of the grid.

Les dégrilleurs connus occupent un grand volume. Ils ne peuvent pas être placés contre la paroi du conduit d'arrivée des effluents.The known screens take up a large volume. They cannot be placed against the wall of the effluent inlet duct.

Le dégrilleur selon l'invention tend à résoudre tous ces problèmes.The screen according to the invention tends to solve all these problems.

Il est destiné, notamment, aux mini-stations d'épuration, au traitement des eaux industrielles chargées de résidus denses et de corps solides, partout où l'encombrement réduit de cet appareil peut permettre une réduction de coût des structures "génie civil".It is intended, in particular, for mini-purification plants, for the treatment of industrial waters loaded with dense residues and solid bodies, wherever the reduced size of this device can allow a reduction in the cost of "civil engineering" structures.

Le dégrilleur selon l'invention présente de nombreux avantages :

  • il est monobloc,
  • il dégrille par l'aval,
  • le déversement se fait par l'amont,
  • le dégrilleur conserve son efficacité, même si la hauteur du plan d'eau de la canalisation est faible,
  • le risque de blocage en pied de grille est quasi nul,
  • un seul moto-reducteur est nécessaire pour obtenir les différents mouvements des différents organes mobiles,
  • aucune pièce mobile ne se trouve immergée en permanence,
  • le dégrilleur selon l'invention dégrille en remontant, son peigne traverse intégralement la grille de bas en haut,
  • le peigne est situé à l'aval des bareaux de la grille, il descend escamoté verticalement ; en position de fin de course bas, il est armé pour reprendre la position horizontale, avant de remonter en dégrillant,
  • la grille possède une partie horizontale qui permet le dêpot des détritus à dégriller et assure ainsi une meilleurs prise par le peigne,
  • le peigne est guidé latéralement par un cadre de rateau coulissant dant le châssis en tôle d'acier,
  • le déversoir mobile est situé à l'amont du dégrilleur,
  • un éjecteur mécanique assure l'évacuation des détritus.
The screen according to the invention has many advantages:
  • it is in one piece,
  • it descends downstream,
  • the discharge takes place upstream,
  • the screen retains its effectiveness, even if the height of the water level in the pipeline is low,
  • the risk of blocking at the bottom of the grid is almost zero,
  • only one gearmotor is necessary to obtain the different movements of the different moving parts,
  • no moving part is permanently submerged,
  • the screen according to the invention screens while going up, its comb passes entirely through the grid from bottom to top,
  • the comb is located downstream of the bars of the grid, it descends retracted vertically; in the low end position, it is armed to return to the horizontal position, before climbing up again,
  • the grid has a horizontal part which allows the deposit of the rubbish to be screened and thus ensures a better grip by the comb,
  • the comb is guided laterally by a sliding rake frame in the sheet steel frame,
  • the mobile weir is located upstream of the screen,
  • a mechanical ejector ensures the evacuation of litter.

A cet effet, le dégrilleur selon l'invention est du type composé :

  • d'un rateau avec un peigne articulé, les dents du peigne traversent la grille de bas en haut, le peigne est escamoté à la descente, il est armé, pour dégriller en remontant,
  • d'un déversoir mobile situé à l'amont de la grille,
  • d'un éjecteur mécanique,
  • d'une grille amont,
  • d'un moto-réducteur qui actionne le mouvement du rateau, caractérisé par le fait que le peigne et/ou le rateau comportent directement ou indirectement des moyens faisant office de came qui, durant sa course, agissent directement sur ledit peigne articulé pour l'ouvrir ou le fermer et sur d'autres organes mobiles pour les actionner au passage du rateau en utilisant ainsi le déplacement dudit rateau et/ou l'énergie générée par le poids du cadre support, lesdites cames agissent sur les organes mobile ou contre des butées disposées sur le chemin de roulement du rateau.
To this end, the screen according to the invention is of the compound type:
  • of a rake with an articulated comb, the teeth of the comb cross the grid from bottom to top, the comb is retracted on the descent, it is armed, to descend while going up,
  • a mobile weir located upstream of the grid,
  • a mechanical ejector,
  • an upstream grid,
  • of a gear motor which actuates the movement of the rake, characterized in that the comb and / or the rake comprise directly or indirectly means acting as a cam which, during its stroke, act directly on said articulated comb for the open or close and on other movable members to activate them when the rake passes, thereby using the displacement of said rake and / or the energy generated by the weight of the support frame, said cams act on the movable members or against stops arranged on the track of the rake.

Le peigne articulé est pourvu d'une première came d'ouverture du rateau, destinée à ouvrir le peigne à l'horizontale, cette came est disposée au niveau de l'oeil du peigne sur la face supérieure dudit peigne, lorsqu'il est en position ouverte. Cette came d'ouverture coopère en fin de course, lorsque le peigne est relevé ou escamoté à la verticale et que le rateau descend en fin de course, pour qu'elle vienne buter contre une butée de réarmement, mise en place au niveau du chemin de roulement, sur la partie basse du châssis, ladite came coopère avec la butée de manière à ce que le peigne pivote autour de son axe d'articulation, pour s'ouvrir en revenant avec les dents en position horizontale, avant la remontée par le dégrillage par l'aval de la grille. Cette came d'ouverture du rateau peut avoir la forme d'un carré.The articulated comb is provided with a first cam opening cam, intended to open the comb horizontally, this cam is arranged at the eye of the comb on the upper face of said comb, when it is in open position. This opening cam cooperates at the end of the race, when the comb is raised or retracted vertically and the rake descends at the end of the race, so that it comes to abut against a reset stop, placed at the level of the raceway, on the lower part of the chassis, said cam cooperates with the stop so that the comb pivots about its articulation axis, to open in returning with the teeth in a horizontal position, before the ascent by the screen downstream of the grid. This rake opening cam can have the shape of a square.

Le châssis peut comporter en plus, dans sa partie basse, une butée de fin de course.The chassis may also include, in its lower part, an end of travel stop.

Les extrémités des dents du peigne qui dégrille par l'aval viennent buter contre le plan inférieur du déversoir mobile qui est monté articulé dans sa partie basse, l'axe d'articulation étant déporté vers l'amont, pour que le déversoir forme un plan incliné mobile. Dans sa partie haute, le déversoir vient au contact d'une butée montée sur le châssis du dégrilleur. Le passage des dents du peigne, qui viennent en butée contre le plan de déversoir, relève celui-ci vers une position plus proche de la verticale, ce qui facilite la chûte des détritus le long du déversoir.The ends of the teeth of the comb which screens downstream abut against the lower plane of the mobile weir which is hinged mounted in its lower part, the articulation axis being offset upstream, so that the weir forms a plane tilted mobile. In its upper part, the weir comes into contact with a stop mounted on the chassis of the screen. The passage of the teeth of the comb, which come into abutment against the weir plane, raises the latter towards a position closer to the vertical, which facilitates the fall of the detritus along the weir.

Le peigne peut comporter une autre came qui assure le relevage ou l'escamotage du peigne du rateau lorsque celui-ci redescend, ladite came vient en butée contre la partie supérieure du plan du déversoir. Ladite came a une forme triangulaire, dont le sommet est tronqué et dirigé vers le bas lorsque le peigne est à l'horizontale ; cette forme triangulaire assure le pivotement du peigne autour de son axe d'articulation, jusqu'au relevage complet, en position quasi-verticale, et à son escamotage.The comb may include another cam which raises or retracts the comb of the rake when it descends, said cam abuts against the upper part of the plane of the weir. Said cam has a triangular shape, the top of which is truncated and directed downwards when the comb is horizontal; this triangular shape ensures the pivoting of the comb around its axis of articulation, until complete lifting, in an almost vertical position, and at its retraction.

La came de relevage ou d'escamotage peut être, au moins, une des dents du peigne qui a la forme caractéristique de la came décrite ci-dessus, afin d'obtenir le mouvement voulu.The lifting or retracting cam can be, at least, one of the teeth of the comb which has the characteristic shape of the cam described above, in order to obtain the desired movement.

Le rateau peut comporter une came au niveau de la partie supérieure de son cadre, ladite came agit avec une autre came complémentaire, disposée sur le corps d'un éjecteur télescopique pendulaire, mis en place dans la partie haute du châssis du dégrilleur.The rake can comprise a cam at the level of the upper part of its frame, said cam acts with another complementary cam, arranged on the body of a pendulum telescopic ejector, placed in the upper part of the screen of the screen.

La came du rateau vient en regard de la came de l'éjecteur, leur forme respective permet à l'éjecteur télescopique pendulaire de s'écarter de la verticale, vers l'amont, et d'éjecter ainsi tous les détritus se trouvant sur les dents du peigne.The rake cam comes opposite the ejector cam, their respective shape allows the pendulum telescopic ejector to deviate from the vertical, upstream, and thus eject all the detritus on the comb teeth.

Une autre caractéristique de l'invention réside dans la forme des dents du peigne qui font office de cames de relevage du plan du déversoir mobile et forment les joues d'une capacité du rateau. Les dents latérales sont plus hautes que les autres dents du peigne, de manière à faire office de capacité pour le rateau et d'obtenir ainsi un volume utile plus grand pour le rateau. Ces dents latérales plus hautes entrent les premières en contact contre le plan inférieur du déversoir mobile.Another characteristic of the invention resides in the shape of the teeth of the comb which act as lifting cams for the plane of the movable weir and form the cheeks of a rake capacity. The lateral teeth are higher than the other teeth of the comb, so as to act as a capacity for the rake and thus obtain a larger useful volume for the rake. These taller side teeth are the first to enter contact against the lower plane of the mobile weir.

Les cames qui se font face ont une forme de triangle, dont le sommet est tronqué ; les cames sont fixées, l'une au rateau, l'autre au corps de l'éjecteur, par leurs bases qui sont montées verticalement.The cams facing each other have the shape of a triangle, the top of which is truncated; the cams are fixed, one to the rake, the other to the body of the ejector, by their bases which are mounted vertically.

Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent un mode de réalisation préféré selon l'invention. Ils permettront de comprendre aisément l'invention.The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.

La figure 1 est une vue du dégrilleur vu de face par l'amont.Figure 1 is a view of the screen viewed from the front upstream.

La figure 2 est une coupe suivant l'axe A-A, représenté à la figure 1. Elle permet de mettre en évidence les différents mouvements du rateau, du peigne, du déversoir et de l'éjecteur télescopique pendulaire.Figure 2 is a section along the axis A-A, shown in Figure 1. It allows to highlight the different movements of the rake, the comb, the weir and the pendulum telescopic ejector.

La figure 3 est une vue schématique, mettant en évidence le dispositif de réarmement du rateau dans la partie basse du châssis.Figure 3 is a schematic view, showing the rearming device of the rake in the lower part of the chassis.

La figure 4 est une vue schématique, mettant en évidence le passage du rateau avec son peigne, qui vient buter contre le plan incliné du déversoir mobile et redresse celui-ci vers la verticale.Figure 4 is a schematic view, showing the passage of the rake with its comb, which abuts against the inclined plane of the movable weir and straightens it towards the vertical.

La figure 5 est une vue schématique du dégrilleur, mettant en évidence le retournement du rateau au moment de la descente. Ledit rateau vient, par sa came, buter contre la partie supérieure du plan incliné du déversoir qui relève le peigne du rateau jusqu'à une position quasi-verticale permettant son escamotage jusqu'à la descente dans la partie basse du châssis du dégrilleur.Figure 5 is a schematic view of the screen, highlighting the inversion of the rake at the time of descent. Said rake, by its cam, abuts against the upper part of the inclined plane of the weir which raises the comb of the rake to a quasi-vertical position allowing its retraction until the descent into the lower part of the chassis of the screen.

La figure 6 met en évidence schématiquement le cadre supérieur du rateau, avec sa came, qui vient agir contre la came du corps de l'éjecteur télescopique pendulaire.Figure 6 schematically highlights the upper frame of the rake, with its cam, which acts against the cam of the body of the pendulum telescopic ejector.

La figure 7 est une vue suivant la figure 6, mettant en évidence la montée du rateau grâce à sa came qui déporte l'éjecteur télescopique pendulaire de la verticale vers l'amont.Figure 7 is a view according to Figure 6, showing the rise of the rake thanks to its cam which deports the pendulum telescopic ejector from vertical to upstream.

La figure 8 est une vue schématique, mettant en évidence l'aspect oscillant et télescopique de l'éjecteur selon l'invention.Figure 8 is a schematic view, showing the oscillating and telescopic appearance of the ejector according to the invention.

La figure 9 est une vue en perspective de l'éjecteur pendulaire télescopique. Elle met en évidence, par des flèches, les différents mouvements dudit éjecteur.Figure 9 is a perspective view of the telescopic pendulum ejector. It highlights, by arrows, the different movements of said ejector.

La figure 10 met en évidence le rateau, avec son cadre, ainsi que son peigne. Le peigne est représenté ouvert, avec les dents à l'horizontale, en traits mixtes ; le peigne est représenté en position escamotée ou relevée, avec les dents verticales.Figure 10 highlights the rake, with its frame, as well as its comb. The comb is shown open, with the teeth horizontal, in mixed lines; the comb is shown in the retracted or raised position, with the vertical teeth.

Le dégrilleur 1, selon l'invention, est du type composé d'un rateau 2, avec un peigne articulé 3. Les dents du peigne 4 traversent une grille 5, de bas en haut. Le peigne 3 est escamoté à la descente. Il est armé pour dégriller en remontant d'un déversoir mobile 6, situé à l'amont de la grille 5, un éjecteur mécanique 7, un moto-réducteur 8 qui actionne le mouvement du rateau le long d'un chemin de roulement 9 prévu dans le châssis 10 du dégrilleur 1.The screen 1, according to the invention, is of the type composed of a rake 2, with an articulated comb 3. The teeth of the comb 4 pass through a grid 5, from bottom to top. The comb 3 is retracted on the descent. He is armed to climb up a mobile weir 6, located upstream of the grid 5, a mechanical ejector 7, a gear motor 8 which actuates the movement of the rake along a raceway 9 provided in the chassis 10 of screen 1.

Selon l'invention, le peigne 3 et/ou le rateau 2 comportent des moyens faisant office de came qui, durant la course dudit rateau ou dudit peigne, agissent directement sur ledit peigne articulé 3, pour l'ouvrir ou le fermer, ou sur d'autres organes tels que le déversoir mobile 6 ou l'éjecteur pendulaire télescopique 7.According to the invention, the comb 3 and / or the rake 2 comprise means acting as a cam which, during the stroke of said rake or said comb, act directly on said articulated comb 3, to open or close it, or on other members such as the mobile weir 6 or the telescopic pendulum ejector 7.

Comme on peut le voir à la figure 3, le rateau 2 comporte un peigne articulé 3. Ce peigne articulé 3 comporte une came 11 qui est une came d'ouverture du rateau 2 destinée à ouvrir le peigne 3 à l'horizontale. Cette came 11 est disposée au niveau de l'oeil 12 de l'axe d'articulation 14 du peigne 3 sur le rateau 2. Sur la figure 3, cette came est disposée au niveau de l'oeil du peigne 2 sur la face supérieure des dents 17, lorsque celui-ci est en position ouverte. Cette came d'ouverture ou de réarmement 11 coopère, en fin de course, avec une butée de réarmement d'ouverture 15. Cette butée peut être soudée sur la partie basse du châssis 10. Ladite came 11 coopère avec la butée 15, de manière à ce que le peigne 3, qui pivote autour de son axe d'articulation 14, puisse s'ouvrir en revenant avec les dents 17 en position horizontale avant la remontée, pour le dégrillage par l'aval de la grille 5. Comme on peut le constater sur la figure 3, cette came 11 a la forme d'un carré. Le châssis 10 peut comporter également, en plus, dans sa partie basse, une autre butée de fin de course 16.As can be seen in FIG. 3, the rake 2 comprises an articulated comb 3. This articulated comb 3 comprises a cam 11 which is an opening cam for the rake 2 intended to open the comb 3 horizontally. This cam 11 is arranged at eye level 12 of the hinge pin 14 of comb 3 on the rake 2. In FIG. 3, this cam is arranged at eye level of comb 2 on the upper face. teeth 17, when the latter is in the open position. This opening or resetting cam 11 cooperates, at the end of the race, with an opening resetting stop 15. This stop can be welded to the lower part of the chassis 10. Said cam 11 cooperates with the stop 15, so so that the comb 3, which pivots about its articulation axis 14, can open by returning with the teeth 17 in a horizontal position before the ascent, for screening by the downstream of the grid 5. As can be see in Figure 3, this cam 11 has the shape of a square. The chassis 10 can also include, in addition, in its lower part, another end of travel stop 16.

L'ensemble rateau 3/cadre support 27, ainsi armé en position ouverte, vient finalement buter sur la butée de fin de course 16, ce qui provoque un mou sur la sangle du treuil actionné par le moto-réducteur 8, qui déclenche à son tour l'arrêt de la descente, puis une nouvelle montée du rateau.The rake 3 / support frame 27 assembly, thus armed in the open position, finally comes up against the end of travel stop 16, which causes slack on the winch strap actuated by the gear motor 8, which triggers at its round the descent stop, then a new climb of the rake.

Dans la figure 4, il est mis en évidence que l'extrémité 18 des dents 17 du peigne 3, qui dégrille par l'aval, vient buter contre le plan inférieur 19 du déversoir mobile 6 qui est monté articulé en 20 dans sa partie basse 21. L'axe d'articulation 20 est déporté vers l'amont pour que le déversoir mobile 6 forme un plan incliné mobile.In Figure 4, it is highlighted that the end 18 of the teeth 17 of the comb 3, which screens downstream, abuts against the lower plane 19 of the movable weir 6 which is mounted articulated at 20 in its lower part 21. The articulation axis 20 is offset upstream so that the mobile weir 6 forms a mobile inclined plane.

Dans sa partie haute 22, le déversoir 6 vient au contact d'une butée 23 montée sur le châssis du dégrilleur 1. Au niveau du point de contact, il peut être prévu un amortisseur 24. Le passage des dents 17 du peigne 3, qui viennent en butée contre le plan incliné du déversoir 6, relève celui-ci vers une position plus proche de la verticale, c'est-à-dire le déporte vers l'amont, ce qui facilite la chute des détritus le long du plan incliné dudit déversoir 6.In its upper part 22, the weir 6 comes into contact with a stop 23 mounted on the chassis of the screen 1. At the contact point, a shock absorber can be provided 24. The passage of the teeth 17 of the comb 3, which come into abutment against the inclined plane of the weir 6, raise the latter towards a position closer to the vertical, that is to say the offset upstream, which facilitates the fall of the detritus along the inclined plane of said weir 6.

Le peigne 3 peut comporter une autre came 25 qui assure le relevage et l'escamotage dudit peigne 3 du rateau 2, lorsque celui-ci redescend. Ladite came 25 vient en butée contre la partie supérieure 22 du plan du déversoir 6. Ladite came 25 a une forme triangulaire dont le sommet est tronqué et dirigé vers le bas lorsque le peigne 3 est à l'horizontale ; cette forme triangulaire assure le pivotement du peigne 3 autour de son axe d'articulation 14 et ce, jusqu'au relevage complet en position quasi-verticale et à son escamotage.The comb 3 may include another cam 25 which ensures the lifting and retraction of said comb 3 of the rake 2, when the latter descends. Said cam 25 abuts against the upper part 22 of the plane of the weir 6. Said cam 25 has a triangular shape whose apex is truncated and directed downwards when the comb 3 is horizontal; this triangular shape ensures the pivoting of the comb 3 around its articulation axis 14 and this, until the complete lifting in a quasi-vertical position and its retraction.

La came de relevage ou d'escamotage 25 peut être, comme cela est représenté figure 4 et visible parfaitement figure 10, une des dents 17 du peigne 3. A la figure 10, il est bien mis en évidence que cette came est la dent médiane 25 des dents 17 du peigne 3. La forme caractéristique de cette came permet d'obtenir le mouvement voulu, c'est-à-dire le pivotement complet des dents du peigne autour de l'axe d'articulation 14, jusqu'à l'escamotage ou le relevage complet (voir les dents représentées en pointillé à la figure 10).The lifting or retracting cam 25 can be, as shown in FIG. 4 and perfectly visible in FIG. 10, one of the teeth 17 of the comb 3. In FIG. 10, it is clearly demonstrated that this cam is the middle tooth 25 of the teeth 17 of the comb 3. The characteristic shape of this cam makes it possible to obtain the desired movement, that is to say the complete pivoting of the teeth of the comb around the axis of articulation 14, up to 1 'retraction or complete lifting (see the teeth shown in dotted lines in Figure 10).

Comme cela est représenté dans les figures 6, 7, 8 et 9, le rateau 2 peut comporter une came 26 au niveau de la partie supérieure de son cadre 27. Ladite came 26 agit avec une autre came complémentaire 28 disposée sur le corps 29 de l'éjecteur télescopique pendulaire 30 mis en place dans la partie haute du châssis 10 du dégrilleur 1. La came 26 du rateau 2 vient en regard de la came 28 de l'éjecteur 30. Leurs formes respectives permettent à l'éjecteur télescopique pendulaire 30 de s'écarter de la verticale vers l'amont et d'éjecter ainsi tous les détritus se trouvant sur les dents 17 du peigne 3. Les cames 26, 28, qui se font face, ont une forme de triangle, dont le sommet est tronqué. Les cames sont fixées, l'une au rateau 2, au niveau de la partie supérieure 27 de son cadre, l'autre au corps 29 de l'éjecteur 30 et ce, par leurs bases qui sont montées verticalement.As shown in Figures 6, 7, 8 and 9, the rake 2 may include a cam 26 at the top of its frame 27. Said cam 26 acts with another complementary cam 28 disposed on the body 29 of the pendulum telescopic ejector 30 placed in the upper part of the chassis 10 of the screen 1. The cam 26 of the rake 2 comes opposite the cam 28 of the ejector 30. Their respective shapes allow the pendulum telescopic ejector 30 to deviate from the vertical upstream and thereby eject all the detritus on the teeth 17 of the comb 3. The cams 26, 28, which face each other, have a triangle shape, the apex of which is truncated. The cams are fixed, one to the rake 2, at the upper part 27 of its frame, the other to the body 29 of the ejector 30 and this, by their bases which are mounted vertically.

La figure 7 met en évidence, par des flèches, le mouvement de l'éjecteur télescopique pendulaire.Figure 7 highlights, by arrows, the movement of the pendulum telescopic ejector.

Selon un autre mode de réalisation, non représenté sur les figures, la came du rateau peut ne pas être disposée sur le cadre, mais directement sur le câble. De même, il n'est pas obligatoire qu'il y ait deux cames, une came au voisinage du rateau et une autre came sur l'éjecteur. Il est possible qu'il existe une seule came sur le câble, ladite came, de par sa forme, agissant directement sur l'éjecteur télescopique pendulaire pour l'écarter de la verticale vers l'amont et permettre ainsi l'éjection de tous les détritus se trouvant sur les dents du peigne.According to another embodiment, not shown in the figures, the rake cam may not be arranged on the frame, but directly on the cable. Similarly, it is not mandatory that there are two cams, a cam in the vicinity of the rake and another cam on the ejector. It is possible that there is only one cam on the cable, said cam, by its shape, acting directly on the pendulum telescopic ejector to move it away from the vertical upstream and thus allow the ejection of all the detritus on the teeth of the comb.

La figure 10 permet de mettre en évidence que les dents latérales 31, 32 du peigne 3 sont plus hautes que les autres dents et forment les joues d'une capacité.Figure 10 shows that the side teeth 31, 32 of the comb 3 are higher than the other teeth and form the cheeks of a capacity.

Ces dents latérales 31, 32, plus hautes que les autres forment une capacité qui offre ainsi un grand volume aux détritus.These lateral teeth 31, 32, higher than the others form a capacity which thus offers a large volume to the detritus.

En dégrillant en remontant, le rateau 2 entre en contact avec le plan inférieur du déversoir mobile 6, en premier par ses dents latérales 31, 32, sans faire tomber les détritus en aval du plan incliné du déversoir, et ce, jusqu'à ce que ledit plan du déversoir mobile 6 ait laissé passer le rateau 2.While screening upwards, the rake 2 comes into contact with the lower plane of the mobile weir 6, first by its lateral teeth 31, 32, without causing the detritus to fall downstream of the inclined plane of the weir, until that said plan of the mobile weir 6 allowed the rake 2 to pass.

REFERENCESREFERENCES

  • 1. dégrilleur1. screen
  • 2. rateau2. rake
  • 3. peigne articulé3. articulated comb
  • 4. dents du peigne4. comb teeth
  • 5. grille5. grid
  • 6. déversoir mobile6. mobile weir
  • 7. éjecteur mécanique7. mechanical ejector
  • 8. moto-réducteur8. gear motor
  • 9. chemin de roulement9. raceway
  • 10. châssis du dégrilleur10. screen chassis
  • 11. came d'ouverture ou de réarmement du rateau11. cam opening or rearming cam
  • 12. oeil de l'axe d'articulation12. eye of the hinge pin
  • 14. axe d'articulation du peigne14. axis of articulation of the comb
  • 15. butée de réarmement d'ouverture15. opening reset stop
  • 16. butée de fin de course16. end stop
  • 17. dents du peigne17. comb teeth
  • 18. extrémité des dents18. tooth tip
  • 19. plan inférieur du déversoir mobile19. lower plan of the mobile weir
  • 20. axe d'articulation20. hinge pin
  • 21. partie basse du déversoir mobile21. lower part of the mobile weir
  • 22. partie haute du déversoir mobile22. upper part of the mobile weir
  • 23. butée23. stop
  • 24. amortisseur24. shock absorber
  • 25. came de relevage ou d'escamotge ou dent médiane25. lifting or retracting cam or middle tooth
  • 26. came26. cam
  • 27. cadre de la came 2627. cam frame 26
  • 28. came complémentaire28. complementary cam
  • 29. corps de l'éjecteur29. body of the ejector
  • 30. éjecteur télescopique pendulaire30. pendulum telescopic ejector
  • 31. dents latérales du peigne31. side teeth of the comb
  • 32. dents latérales du peigne32. side teeth of the comb

Claims (11)

Le dégrilleur (1) du type composé : - d'un rateau (2), avec un peigne articulé (3) ; les dents du peigne (4) traversent une grille (5), de bas en haut, le peigne (3) est escamoté à la descente, il est armé, pour dégriller en remontant, - d'un déversoir mobile (6), situé à l'amont de la grille (5), - d'un éjecteur mécanique (7), - d'un moto-réducteur (8) qui actionne le mouvement du rateau le long d'un chemin de roulement (9) prévu dans le châssis (10) du dégrilleur (1) caractérisé par le fait
   que le peigne (3) ou le rateau (2) comportent directement ou indirectement des moyens faisant office de came qui, durant la course dudit rateau ou dudit peigne, agissent directement sur ledit peigne articulé (3), pour l'ouvrir ou le fermer, ou sur d'autres organes tels que le déversoir mobile (6) ou l'éjecteur pendulaire télescopique (7).The screen (1) of the compound type: - a rake (2), with an articulated comb (3); the teeth of the comb (4) pass through a grid (5), from bottom to top, the comb (3) is retracted on the descent, it is armed, to screen when going up, - a mobile weir (6), located upstream of the grid (5), - of a mechanical ejector (7), - of a gear motor (8) which actuates the movement of the rake along a raceway (9) provided in the frame (10) of the screen (1) characterized by the fact
that the comb (3) or the rake (2) comprise directly or indirectly means acting as a cam which, during the stroke of said rake or said comb, act directly on said articulated comb (3), to open or close it , or on other components such as the mobile weir (6) or the telescopic pendulum ejector (7). Dégrilleur (1), selon la revendication 1, caractérisé par le fait
   que le rateau (2) comporte un peigne articulé (3) ; ledit peigne articulé (3) comporte une came (11) qui est une came d'ouverture du rateau (2) destinée à ouvrir le peigne (3) à l'horizontale.Screen (1), according to claim 1, characterized by the fact
that the rake (2) comprises an articulated comb (3); said articulated comb (3) comprises a cam (11) which is a cam opening cam (2) intended to open the comb (3) horizontally. Dégrilleur (1), selon la revendication 2, caractérisé par le fait
   que ladite came (11) est disposée au niveau de l'oeil (12) de l'axe d'articulation (14) du peigne (3) sur le rateau (2), sur la face supérieure des dents (17), lorsque celui-ci est en position ouverte ; cette came d'ouverture ou de réarmement (11) coopère, en fin de course, avec une butée de réarmement d'ouverture (15) ; ladite came (11) coopère avec la butée (15), de manière à ce que le peigne (3), qui pivote autour de son axe d'articulation (14), puisse s'ouvrir en revenant avec les dents (17) en position horizontale avant la remontée, pour le dégrillage par l'aval de la grille (5).Screen (1), according to claim 2, characterized by the fact
that said cam (11) is disposed at eye level (12) of the axis of articulation (14) of the comb (3) on the rake (2), on the upper face of the teeth (17), when it is in the open position; this opening or resetting cam (11) cooperates, at the end of the race, with an opening resetting stop (15); said cam (11) cooperates with the stop (15), so that the comb (3), which pivots about its articulation axis (14), can open while returning with the teeth (17) in horizontal position before ascent, for screening downstream of the grid (5). Dégrilleur (1), selon la revendication 3, caractérisé par le fait
   que la came (11) d'ouverture ou de réarmement, a la forme d'un carré.Screen (1), according to claim 3, characterized by the fact
that the opening or resetting cam (11) has the shape of a square. Dégrilleur (1), selon la revendication 1, caractérisé par le fait
   que l'extrémité (18) des dents (17) du peigne (3) vient buter contre le plan inférieur (19) du déversoir mobile (6) qui est monté articulé en (20) dans sa partie basse (21) ; l'axe d'articulation (20) est déporté vers l'amont pour que le déversoir mobile (6) forme un plan incliné mobile; le passage des dents (17) qui viennent en butée contre le plan incliné du déversoir (6), relève celui-ci vers une position plus proche de la verticale, c'est-à-dire le déporte vers l'amont.Screen (1), according to claim 1, characterized by the fact
that the end (18) of the teeth (17) of the comb (3) abuts against the lower plane (19) of the mobile weir (6) which is mounted articulated at (20) in its lower part (21); the hinge pin (20) is offset upstream so that the mobile weir (6) forms a mobile inclined plane; the passage of the teeth (17) which abut against the inclined plane of the weir (6), raises the latter to a position closer to the vertical, that is to say the offset upstream. Dégrilleur (1), selon la revendication 1, caractérisé par le fait
   que le peigne (3) comporte une autre came (25) qui assure le relevage et l'escamotage dudit peigne (3) du rateau (2), lorsque celui-ci redescend; ladite came (25) vient en butée contre la partie supérieure (22) du plan du déversoir (6).Screen (1), according to claim 1, characterized by the fact
that the comb (3) has another cam (25) which ensures the lifting and retracting said comb (3) of the rake (2), when the latter descends; said cam (25) abuts against the upper part (22) of the weir plane (6). Dégrilleur (1), selon la revendication 6, caractérisé par le fait
   que ladite came (25) a une forme triangulaire dont le sommet est tronqué et dirigé vers le bas lorsque le peigne (3) est à l'horizontale ; cette forme triangulaire assure le pivotement du peigne (3) autour de son axe d'articulation (14) et ce, jusqu'au relevage complet en position quasi-verticale et à son escamotage.Screen (1) according to claim 6, characterized by the fact
that said cam (25) has a triangular shape, the top of which is truncated and directed downwards when the comb (3) is horizontal; this triangular shape ensures the pivoting of the comb (3) around its articulation axis (14) and this, until the complete lifting in quasi-vertical position and its retraction. Dégrilleur (1), selon l'une quelconque des revendications 6 ou 7, caractérisé par le fait
   que la came de relevage ou d'escamotage (25) est la dent médiane (25), des dents (17) du peigne (3) ; la forme caractéristique de cette came permet d'obtenir le mouvement voulu, c'est-à-dire le pivotement complet des dents du peigne autour de l'axe d'articulation (14), jusqu'à l'escamotage ou le relevage complet.Screen (1) according to any one of claims 6 or 7, characterized by the fact
that the lifting or retracting cam (25) is the middle tooth (25), teeth (17) of the comb (3); the characteristic shape of this cam makes it possible to obtain the desired movement, that is to say the complete pivoting of the teeth of the comb around the axis of articulation (14), until the retraction or the complete lifting . Dégrilleur (1), selon la revendication 1, caractérisé par le fait
   que le rateau (2) comporte une came (26) au niveau de la partie supérieure de son cadre (27) ; ladite came (26) agit avec une autre came complémentaire (28) disposée sur le corps (29) de l'éjecteur télescopique pendulaire (30) mis en place dans la partie haute du châssis (10) du dégrilleur (1) ; la came (26) du rateau (2) vient en regard de la came (28) de l'éjecteur (30) ; leurs formes respectives permettent à l'éjecteur télescopique pendulaire (30) de s'écarter de la verticale vers l'amont et d'éjecter ainsi tous les détritus se trouvant sur les dents (17) du peigne (3).Screen (1), according to claim 1, characterized by the fact
that the rake (2) comprises a cam (26) at the level of the upper part of its frame (27); said cam (26) acts with another complementary cam (28) disposed on the body (29) of the pendulum telescopic ejector (30) placed in the upper part of the frame (10) of the screen (1); the cam (26) of the rake (2) comes opposite the cam (28) of the ejector (30); their respective shapes allow the pendulum telescopic ejector (30) to deviate from the vertical upstream and thus eject all the detritus found on the teeth (17) of the comb (3). Dégrilleur (1), selon la revendication 9, caractérisé par le fait
   que les cames (26, 28), qui se font face, ont la forme d'un triangle, dont le sommet est tronqué ; les cames sont fixées, l'une au rateau (2), au niveau de la partie supérieure (27) de son cadre, l'autre au corps (29) de l'éjecteur (30) et ce, par leurs bases qui sont montées verticalement.Screen (1) according to claim 9, characterized in that
that the cams (26, 28), which face each other, have the shape of a triangle, the top of which is truncated; the cams are fixed, one to the rake (2), at the level of the upper part (27) of its frame, the other to the body (29) of the ejector (30) and this, by their bases which are mounted vertically. Dégrilleur (1), selon la revendication 1, caractérisé par le fait
   que les dents latérales (31, 32) du peigne (3) font office de came de relevage et forment les joues d'une capacité pour le rateau (2), ces dents latérales (31, 32) sont plus hautes que les autres dents.Screen (1), according to claim 1, characterized by the fact
that the side teeth (31, 32) of the comb (3) act as a lifting cam and form the cheeks of a capacity for the rake (2), these side teeth (31, 32) are higher than the other teeth .
EP91480010A 1990-01-31 1991-01-24 Downstream bar screen cleaner, ejecting upstream, comprising a hinged comb that goes down pivoted and goes up again, horizontaly opened while cleaning the bar screen and a mobile upstream overflow Expired - Lifetime EP0440573B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91480010T ATE91521T1 (en) 1990-01-31 1991-01-24 DOWNSTREAM OPERATIONS RAKE CLEANER, UPSTREAM EJECTION FEATURES A FOLDING COMB THAT FOLDS DOWN AND OPENS HORIZONTALLY, RISES UP CLEANING THE RAKES, AND UPSTREAM A MOVABLE CHUTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001209A FR2657635B1 (en) 1990-01-31 1990-01-31 DOWNSTREAM SCREEN, EJECTING FROM UPSTREAM, COMPRISING AN ARTICULATED COMB THAT DESCENDS, ESCAMOTS, AND MOVES UP, HORIZONTALLY OPENED BY SCREENING, AND AN UPPER MOBILE OVERWAY.
FR9001209 1990-01-31

Publications (2)

Publication Number Publication Date
EP0440573A1 true EP0440573A1 (en) 1991-08-07
EP0440573B1 EP0440573B1 (en) 1993-07-14

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EP91480010A Expired - Lifetime EP0440573B1 (en) 1990-01-31 1991-01-24 Downstream bar screen cleaner, ejecting upstream, comprising a hinged comb that goes down pivoted and goes up again, horizontaly opened while cleaning the bar screen and a mobile upstream overflow

Country Status (6)

Country Link
EP (1) EP0440573B1 (en)
AT (1) ATE91521T1 (en)
DE (1) DE69100159D1 (en)
ES (1) ES2043458T3 (en)
FR (1) FR2657635B1 (en)
HK (1) HK1006035A1 (en)

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WO2001088291A1 (en) * 2000-05-15 2001-11-22 Zygmunt Czekala Self-cleaning device, especially for trash screening
DE102009042132B3 (en) * 2009-09-18 2011-01-27 Universität Kassel Device for diverting fishes and flotsam from intake screen, has collecting trough comprising stripping device, and perforated plate for producing flow shade and arranged at trough in direction of backwater in vertically displaceable manner
CN113120981A (en) * 2020-08-10 2021-07-16 淮安同方盐化工业污水处理有限公司 Grid dirt removing machine
CN114592562A (en) * 2022-03-09 2022-06-07 湖南城市学院设计研究院有限公司 Urban road rainwater waste water is according to collection device of real-time flow
FR3129680A1 (en) 2021-11-30 2023-06-02 Brun Frères Device for the evacuation of bulky items on the pipe protection grids
WO2023118428A1 (en) 2021-12-23 2023-06-29 Id Invention & Développement Self-cleaning filtering device

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Publication number Priority date Publication date Assignee Title
FR717474A (en) * 1931-05-16 1932-01-09 Bouvier Et Paul Atel Device for cleaning the grids of hydraulic plants
DE2546099A1 (en) * 1975-10-15 1977-04-21 Karl Puehler Jun Kg Water bar screen rake - guided on rails with lower section swivelled by screw or worm drive for rake engagement
FR2492865A1 (en) * 1980-10-23 1982-04-30 Pous Georges Clearing for water grille - includes pivoted rectangular scraper which moves over upstream grille surface
GB2089229A (en) * 1980-12-11 1982-06-23 Beaudrey & Cie Trash rake

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001088291A1 (en) * 2000-05-15 2001-11-22 Zygmunt Czekala Self-cleaning device, especially for trash screening
DE102009042132B3 (en) * 2009-09-18 2011-01-27 Universität Kassel Device for diverting fishes and flotsam from intake screen, has collecting trough comprising stripping device, and perforated plate for producing flow shade and arranged at trough in direction of backwater in vertically displaceable manner
CN113120981A (en) * 2020-08-10 2021-07-16 淮安同方盐化工业污水处理有限公司 Grid dirt removing machine
CN113120981B (en) * 2020-08-10 2024-01-12 合肥市贵谦信息科技有限公司 Grating dirt remover
FR3129680A1 (en) 2021-11-30 2023-06-02 Brun Frères Device for the evacuation of bulky items on the pipe protection grids
WO2023118428A1 (en) 2021-12-23 2023-06-29 Id Invention & Développement Self-cleaning filtering device
FR3131221A1 (en) 2021-12-23 2023-06-30 Pascal CREPET SELF-CLEANING FILTERING DEVICE
CN114592562A (en) * 2022-03-09 2022-06-07 湖南城市学院设计研究院有限公司 Urban road rainwater waste water is according to collection device of real-time flow

Also Published As

Publication number Publication date
FR2657635B1 (en) 1992-07-31
EP0440573B1 (en) 1993-07-14
ATE91521T1 (en) 1993-07-15
ES2043458T3 (en) 1993-12-16
HK1006035A1 (en) 1999-02-05
FR2657635A1 (en) 1991-08-02
DE69100159D1 (en) 1993-08-19

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