WO1993025323A1 - Granulometric vibration sorting device - Google Patents
Granulometric vibration sorting device Download PDFInfo
- Publication number
- WO1993025323A1 WO1993025323A1 PCT/FR1993/000549 FR9300549W WO9325323A1 WO 1993025323 A1 WO1993025323 A1 WO 1993025323A1 FR 9300549 W FR9300549 W FR 9300549W WO 9325323 A1 WO9325323 A1 WO 9325323A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- walls
- products
- troughs
- chutes
- 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.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
- B07B13/07—Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
Definitions
- the present invention relates to the field of processing industrial waste, in particular ordinary waste, as well as other materials, in particular quarry or recovery materials, namely the sorting of such materials, and relates to a sorting device. particle size by vibration.
- a screening device has also been proposed consisting of a cell conveyor guided in the direction of longitudinal displacement of the waste to be treated, with an inclination in the direction of the progress of the products and affected by a continuous movement of transverse translation. in this direction, this carrier having a concave part for receiving and processing waste.
- Such a device certainly makes it possible to avoid any risk of clogging, the cells not being open to allow the products to pass through, but, however, it only authorizes a sorting of two products of different sizes or grain sizes.
- the present invention aims to overcome these drawbacks.
- FIG. 1 is a side elevational view of a sorting device according to the invention
- FIG. 2 is a perspective view of the device according to FIG. 1
- FIG. 3 is a front elevation view of the product distribution surface with two inclined side walls and the screening means superposed.
- the particle size sorting device operates by vibration and is essentially constituted by a vibrating means 1, provided with a vibrator 2 or a excitatri ⁇ this, provided with a surface 4 for distributing the products.
- This surface 4 is delimited on at least one side by at least one wall 5 inclined downwards and outwards relative to the distribution surface 4 and provided with superimposed screening means 6 cooperating with means 13 for receiving and / or transport of sorted products.
- the surface 4 can be connected to an area 3 for receiving the products to be screened arranged upstream.
- the surface 4 or the receiving area 3 can co-operate, either with a receiving and feeding hopper 8, or with a means of continuous feeding by conveyor belt or the like. Due to the vibration imparted to the whole of the means 1 by the vibrator or the exciter 2, the products directly poured onto the area 3 or the surface 4 or flowing on the latter at the outlet of the hopper 8 have a movement causing them to move in the direction of the front end of the distribution surface 4. The latter presents.
- the base of which is adjacent to the corresponding side of the reception area 3 and the end of the tip of which opposite the base is preferably cut and provided with a deflector guide 9, conical or pyramidal, extending in the axis of said point and the slope of which is directed towards the base of the surface 4.
- the screening means 6 can be formed by chutes of receiving and transport 10 extending parallel to one another, in stages, on the inclined side wall or walls 5, and having advantageously a free outer edge slightly inclined towards the outside.
- the troughs 10 can be provided, at regular intervals, with vertical calibration accessories, such as chains, bars or the like, hooked to the upper edge of their outer edge and extending over the edge of the immediately lower chute.
- vertical calibration accessories such as chains, bars or the like, hooked to the upper edge of their outer edge and extending over the edge of the immediately lower chute.
- the chutes 10, provided on the inclined wall or walls 5, have progressively increasing widths from the distribution surface 4 towards the lower part of the wall or walls 5, each chute width corresponding to a predefined particle size .
- chutes 10 of the same width are provided for In each particle size, the vertical distances between two successive troughs 10 being substantially equal to the width of the lower trough, and at least two different widths of troughs 10 are superimposed along the wall or walls 5.
- the products of 'a dimension greater than the width of a reception chute 10 are automatically pushed towards the means 6 immediately below.
- the means 6 are further provided with grids with divergent bars in the form of teeth or claws 6 'extending towards the outside of the means 1, parallel or substantially parallel to its longitudinal axis, directly on the edge or edges of the surface 4 or on the outer edge of the reception and transport chutes 10.
- These grids with divergent bars in the form of teeth or claws 6 ′ preferably extend each above the trough 10 of the means 6 immediately in ⁇ lower, over the width of the latter.
- the teeth or claws 6 'of the means 6 advantageously have, as shown in FIG. 2 of the accompanying drawings, dimensions and mutual spacings that are proportional to the width of the troughs 10 that they overhang.
- the products incompatible with the chute 10 of the means 6 of a given sorting level advance on the corresponding teeth or claws 6 'and either fall through the spaces provided between these latter in the chute immediately below, or roll on these teeth or claws, when their size is too large, and fall directly on the teeth or claws adjacent to the chute immediately below.
- the screening means 6 are arranged on the inclined side wall (s) 5 with an offset from their front end part in such a way that the products arriving on the grids with divergent bars at said ends are taken up by means 6 disposed immediately in below.
- the lengths of the screening means 6, in particular the chutes 10, are advantageously identical, so that the ends of said means 6 extend at an angle on the wall or walls 5, the rear ends opening out above an oblique recovery gutter 11, which ends in a wide lower gutter 12 or above an independent means of transport extending under the lowest means 6 and recovering the products of larger particle size.
- the troughs 10 of the same width with one or two walls 5 pour into receiving means 13 constituted in the form of troughs or gutters or else of a conveyor device, the lower gutter or gutters of great width 12 also being connected to such a means 13.
- the different particle sizes of products can be evacuated individually to subsequent treatment stations, on the sides of the device or at the front or rear of the latter, possibly by passing under the latter or between its side walls 5.
- the inclined wall or walls 5 can be connected to the distribution surface 4 with pivoting by means of a hinge or ana log, the means 6 then being connected to the wall (s) 5, also by means of hinges, a tilt adjustment device being provided in the lower part, under the surface 4 and acting on the internal surface (s) of the or walls 5 and a means for holding the horizontal bed being connected to the troughs 10 of the means 6.
- the device for adjusting, tilting the pa ⁇ kings 5 can be constituted by a hydraulic or mechanical jack or even by a device with a telescopic tube lockable by means of one or more pins.
- each chute 10 can advantageously be equipped, near its front end, with a deflector vertical 14 wedge-shaped mounted on its external vertical wall and oriented divergently to the corresponding wall 5 relative to the direction of progression of the products ( Figures 2 and 3).
- deflectors allow an evacuation of the products being found only partially in the troughs 10 and therefore exceeding the granulometry admitted at this sorting stage, by promoting their tilting on the teeth or claws 6 ', then their fall on the means 6 immediately below.
- the deflectors 14 prevent any risk of jamming.
- the device according to the invention operates as follows:
- These products then undergo a calibration on the claws or teeth 6 ′ and, depending on their size, either fall through the spaces between said teeth or claws in the corresponding chute, or roll on the latter and fall on the means. screen 6 immediately below.
- the vibrating means 1 can have one or two walls 5 for receiving the screening means 6, the length of its distribution surface and its width can also be variable.
- the sorting of the products is carried out by elimination in the upper chute (s) 10 of the elements of smaller dimension, the other elements progressing by gravity towards the means 6 situated below to undergo a new screening and a new elimination, by example of intermediate elements.
- This process is followed for as many times as is provided with different particle sizes and the elements of too large dimension, which are unclassifiable, are poured into the lower gutter of large width 12 corresponding and evacuated in a means 13 corresponding or dumped directly onto an independent means of transport for further processing.
- the products sorted according to the various particle sizes are recovered, by particle size class, at the outlet of the corresponding chute (s) 10, also by means 13 for each class. Thanks to the invention it is possible to produce a particle size sorting device for natural materials.
- the device according to the invention is easily adaptable to the type of screening to be carried out and is present with respect to traditional cascade screeners, with equal screening surface, less height and a layer of product distributed over a lower height, so that the screening is significantly improved.
- the yield and the sorting quality are markedly improved because, as the distribution surface 4 becomes narrower, the materials fall towards the screening means 6 arranged below and perform a progressive rotational movement from one level to another, so that they come apart and are better screened.
- the device according to the invention transports the product to be treated along a diagonal path leading to gradual evacuation and screening in cascades, while known screeners perform successive screening of the entire layer of materials. while moving.
- this device can function as a hopper extractor or be fed in any other way, so that accessory feeding devices are not necessarily necessary, and does not require, in particular in the case of operation with a hopper, no synchronization with downstream feed means.
- the invention is not limited to the embodiment described and shown in the appended drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
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- Combined Means For Separation Of Solids (AREA)
Abstract
Description
Dispositif de tri granulométrique par vibration Particle size sorting by vibration
La présente invention concerne le domaine du traitement des déchets industriels, notamment des déchets banals, ainsi que d'autres matériaux, en particulier de carrière ou de récupération, à savoir le tri de tels a- tériaux, et a pour objet un dispositif de tri granulomé¬ trique par vibration.The present invention relates to the field of processing industrial waste, in particular ordinary waste, as well as other materials, in particular quarry or recovery materials, namely the sorting of such materials, and relates to a sorting device. particle size by vibration.
Actuellement, le tri des matériaux, en particu¬ lier des déchets industriels banals et des matériaux de carrière ou de récupération, est généralement effectué au moyen de dispositifs de tri granulométrique tels que des trommels, des dispositifs vibrants ou autres, qui déver¬ sent les produits, en fonction de leur granulométrie, sur des moyens de transport et d'évacuation correspondants en vue de leur traitement ultérieur. Un tel tri par trommels ou par dispositifs vi¬ brants permet d'effectuer un tri correct des différents matériaux, mais, cependant, il présente 1 ' inconvénient d'un risque de colmatage rapide des parois criblantes des dispositifs vibrants ou des trommels, de sorte que l'efficacité du criblage est très rapidement réduite et nécessite une intervention humaine pour l'enlèvement des produits pris dans les parois criblantes.Currently, the sorting of materials, in particular of ordinary industrial waste and quarry or recovery materials, is generally carried out by means of particle size sorting devices such as trommels, vibrating devices or the like, which release the products, depending on their particle size, on corresponding means of transport and disposal for further processing. Such sorting by trommels or by vi¬ brant devices makes it possible to carry out a correct sorting of the different materials, but, however, it has the disadvantage of a risk of rapid clogging of the screening walls of the vibrating devices or trommels, so that the screening efficiency is very quickly reduced and requires human intervention for the removal of the products taken from the screening walls.
Il a également été proposé un dispositif de criblage constitué par un transporteur à alvéoles guidé dans le sens de déplacement longitudinal des déchets à traiter, avec une inclinaison dans le sens de la progres¬ sion des produits et affecté d'un mouvement continu de translation transversalement à cette direction, ce trans¬ porteur présentant une partie concave de réception et de traitement des déchets. Un tel dispositif permet, certes, d'éviter tout risque de colmatage, les alvéoles n'étant pas ouverts pour laisser traverser les produits, mais, toutefois, il n'autorise qu'un tri de deux produits de dimensions ou granulométries différentes.A screening device has also been proposed consisting of a cell conveyor guided in the direction of longitudinal displacement of the waste to be treated, with an inclination in the direction of the progress of the products and affected by a continuous movement of transverse translation. in this direction, this carrier having a concave part for receiving and processing waste. Such a device certainly makes it possible to avoid any risk of clogging, the cells not being open to allow the products to pass through, but, however, it only authorizes a sorting of two products of different sizes or grain sizes.
En effet, du fait de la concavité du transpor¬ teur, les produits déversés sur ce dernier sont entraînés par les alvéoles et, au fur et à mesure du déplacement vers l'un des sommets de la concavité, les produits de plus grosse granulométrie retombent vers la partie la plus basse et sont évacués du fait de la combinaison du mouvement transversal du transporteur avec l'inclinaison de l'ensemble du dispositif dans la direction de progres¬ sion des produits. Une séparation de produits d'une troi¬ sième granulométrie n'est pas envisageable avec un tel dispositif.Indeed, due to the concavity of the transporter, the products spilled on the latter are entrained by the alveoli and, as the displacement towards one of the summits of the concavity, the products of larger particle size fall back towards the lowest part and are evacuated due to the combination of the transverse movement of the conveyor with the inclination of the entire device in the direction of progression of the products. A separation of products of a third particle size cannot be envisaged with such a device.
En outre, ces dispositifs connus, du fait qu'ils réalisent un criblage lors du déplacement des pro¬ duits sur une surface donnée, ne permettent pas de trier plus de trois granulométries différentes. En effet, une augmentation du nombre de granulométries à obtenir néces¬ siterait un allongement de la construction de ces dispo- sitifs, incompatible avec une exploitation rationnelle des installations de tri.In addition, these known devices, due to the fact that they carry out a screening during the movement of the products on a given surface, do not make it possible to sort more than three different particle sizes. Indeed, an increase in the number of particle sizes to be obtained would necessitate an extension of the construction of these devices, incompatible with rational operation of the sorting facilities.
La présente invention a pour but de pallier ces inconvénients .The present invention aims to overcome these drawbacks.
Elle a, en effet, pour objet un dispositif de tri granulométrique caractérisé en ce qu'il fonctionne par vibration et en ce qu'il est essentiellement consti¬ tué par un moyen vibrant, muni d'un motovibrateur ou d'une excitatrice, pourvu d'une surface de répartition des produits à cribler, qui est délimitée sur au moins un côté par au moins une paroi inclinée vers le bas et vers l'extérieur par rapport à la surface de répartition et munie de moyens de criblage superposés coopérant avec des moyens de réception et/ou de transport des produits triés . L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réali- sation préféré, donné à titre d'exemp.le non limitatif, et expliqué avec référence aux dessins schématiques annexés , dans lesquels : la figure 1 est une vue en élévation latérale d'un dispositif de tri conforme à l'invention ; la figure 2 est une vue en perspective du dis¬ positif suivant la figure 1, et la figure 3 est une vue en élévation frontale de la surface de répartition des produits avec deux pa- rois latérales inclinées et les moyens de criblage super¬ posés .It has, in effect, for a particle size sorting device characterized in that it operates by vibration and in that it is essentially consti¬ killed by a vibrating means, provided with a vibrator or an exciter, provided a distribution surface for the products to be screened, which is delimited on at least one side by at least one wall inclined downwards and outwards relative to the distribution surface and provided with superimposed screening means cooperating with means of reception and / or transport of sorted products. The invention will be better understood, thanks to the description below, which relates to an embodiment. sation preferred, given by way of example. not limiting, and explained with reference to the accompanying schematic drawings, in which: Figure 1 is a side elevational view of a sorting device according to the invention; FIG. 2 is a perspective view of the device according to FIG. 1, and FIG. 3 is a front elevation view of the product distribution surface with two inclined side walls and the screening means superposed.
Conformément à l'invention et comme le montrent plus particulièrement les figures 1 à 3 des dessins anne¬ xés, le dispositif de tri granulométrique fonctionne par vibration et est essentiellement constitué par un moyen vibrant 1, muni d'un motovibrateur 2 ou d'une excitatri¬ ce, pourvu d'une surface 4 de répartition des produits. Cette surface 4 est délimitée sur au moins un côté par au moins une paroi 5 inclinée vers le bas et vers l'extérieur par rapport à la surface de répartition 4 et munie de moyens de criblage superposés 6 coopérant avec des moyens 13 de réception et/ou de transport des produits triés.In accordance with the invention and as shown more particularly in Figures 1 to 3 of the appended drawings, the particle size sorting device operates by vibration and is essentially constituted by a vibrating means 1, provided with a vibrator 2 or a excitatri¬ this, provided with a surface 4 for distributing the products. This surface 4 is delimited on at least one side by at least one wall 5 inclined downwards and outwards relative to the distribution surface 4 and provided with superimposed screening means 6 cooperating with means 13 for receiving and / or transport of sorted products.
La surface 4 peut être reliée à une aire 3 de réception des produits à cribler disposée en amont.The surface 4 can be connected to an area 3 for receiving the products to be screened arranged upstream.
La surface 4 ou l'aire de réception 3 peut co¬ opérer, soit avec une trémie de réception et d'alimenta¬ tion 8, soit avec un moyen d'alimentation en continu par bande transporteuse ou autre. Du fait de la vibration conférée à l'ensemble du moyen 1 par le motovibrateur ou l'excitatrice 2, les produits directement déversés sur 1 ' aire 3 ou la surface 4 ou s 'écoulant sur ces dernières à la sortie de la tré¬ mie 8 sont animés d'un mouvement les amenant à se dépla- cer en direction de l'extrémité avant de la surface de répartition 4. Cette dernière présente . avantageusement une forme triangulaire, dont la base est adjacente au côté correspondant de l'aire de réception 3 et dont l'extrémi¬ té de la pointe opposée à la base est, de préférence, coupée et pourvue d'un guide déflecteur 9, conique ou py¬ ramidal, s'étendant dans l'axe de ladite pointe et dont la pente est dirigée vers la base de la surface 4.The surface 4 or the receiving area 3 can co-operate, either with a receiving and feeding hopper 8, or with a means of continuous feeding by conveyor belt or the like. Due to the vibration imparted to the whole of the means 1 by the vibrator or the exciter 2, the products directly poured onto the area 3 or the surface 4 or flowing on the latter at the outlet of the hopper 8 have a movement causing them to move in the direction of the front end of the distribution surface 4. The latter presents. advantageously a triangular shape, the base of which is adjacent to the corresponding side of the reception area 3 and the end of the tip of which opposite the base is preferably cut and provided with a deflector guide 9, conical or pyramidal, extending in the axis of said point and the slope of which is directed towards the base of the surface 4.
Ainsi, les matériaux avançant sur la surface 4 sont obligés de se répartir vers l'un ou vers les deux côtés, afin d'être traités par les moyens de criblage 6. Les moyens de criblage 6 peuvent être consti¬ tués par des goulottes de réception et de transport 10 s'étendant parallèlement entre elles, par paliers, sur la ou les parois latérales inclinées 5, et présentant avan- tageuse ent un bord extérieur libre légèrement incliné vers l'extérieur.Thus, the materials advancing on the surface 4 are forced to be distributed towards one or towards the two sides, in order to be treated by the screening means 6. The screening means 6 can be formed by chutes of receiving and transport 10 extending parallel to one another, in stages, on the inclined side wall or walls 5, and having advantageously a free outer edge slightly inclined towards the outside.
Selon une caractéristique de l'invention, non représentée aux dessins annexés, les goulottes 10 peuvent être pourvues, à intervalles réguliers, d'accessoires verticaux de calibrage, tels que des chaînes, des barres ou autres, accrochés à l'arête supérieure de leur bord extérieur et s'étendant jusque par-dessus l'arête de la goulotte immédiatement inférieure. De tels accessoires permettent de retenir les matériaux dépassant éventuelle- ment sur les bords des goulottes et de favoriser leur dégagement hors desdites goulottes et leur chute vers les goulottes immédiatement inférieures.According to a characteristic of the invention, not shown in the accompanying drawings, the troughs 10 can be provided, at regular intervals, with vertical calibration accessories, such as chains, bars or the like, hooked to the upper edge of their outer edge and extending over the edge of the immediately lower chute. Such accessories make it possible to retain the materials possibly protruding from the edges of the troughs and to promote their release from said troughs and their fall towards the immediately lower troughs.
Les goulottes 10, prévues sur la ou les parois inclinées 5, présentent des largeurs progressivement croissantes à partir de la surface 4 de répartition vers la partie inférieure de la ou des parois 5, chaque lar¬ geur de goulotte correspondant à une granulométrie prédé¬ terminée .The chutes 10, provided on the inclined wall or walls 5, have progressively increasing widths from the distribution surface 4 towards the lower part of the wall or walls 5, each chute width corresponding to a predefined particle size .
Selon une caractéristique de l'invention, plu- sieurs goulottes 10 de même largeur sont prévues pour D chaque granulométrie, les distances verticales entre deux goulottes successives 10 étant sensiblement égales à la largeur de la goulotte inférieure, et au moins deux lar¬ geurs différentes de goulottes 10 sont superposées le long de la ou des parois 5. Ainsi, les produits d'une di¬ mension supérieure à la largeur d'une goulotte 10 de ré¬ ception sont automatiquement repoussés vers le moyen 6 immédiatement en dessous.According to a characteristic of the invention, several chutes 10 of the same width are provided for In each particle size, the vertical distances between two successive troughs 10 being substantially equal to the width of the lower trough, and at least two different widths of troughs 10 are superimposed along the wall or walls 5. Thus, the products of 'a dimension greater than the width of a reception chute 10 are automatically pushed towards the means 6 immediately below.
Selon une autre caractéristique de l'invention, les moyens 6 sont pourvus, en outre, de grilles à bar¬ reaux divergents sous forme de dents ou de griffes 6 ' s'étendant vers l'extérieur du moyen 1, parallèlement ou sensiblement parallèlement à son axe longitudinal, direc¬ tement sur le ou les bords de la surface 4 ou sur le bord externe des goulottes de réception et de transport 10.According to another characteristic of the invention, the means 6 are further provided with grids with divergent bars in the form of teeth or claws 6 'extending towards the outside of the means 1, parallel or substantially parallel to its longitudinal axis, directly on the edge or edges of the surface 4 or on the outer edge of the reception and transport chutes 10.
Ces grilles à barreaux divergents sous forme de dents ou de griffes 6' s'étendent, de préférence, chacune au-dessus de la goulotte 10 du moyen 6 immédiatement in¬ férieure, sur la largeur de cette dernière. Ainsi, les produits traversant les espaces entre les dents ou grif¬ fes 6 ' tombent dans la goulotte 10 du moyen 6 immédiate¬ ment en dessous en vue de subir un nouveau criblage.These grids with divergent bars in the form of teeth or claws 6 ′ preferably extend each above the trough 10 of the means 6 immediately in¬ lower, over the width of the latter. Thus, the products passing through the spaces between the teeth or grif¬ fes 6 'fall into the chute 10 of the means 6 immediately below in order to undergo a new screening.
Les dents ou griffes 6 ' des moyens 6 présentent avantageusement, comme le montre la figure 2 des dessins annexés, des dimensions et des écartements mutuels crois¬ sant proportionnellement à la largeur des goulottes 10 qu'elles surplombent. Ainsi, les produits incompatibles avec la goulotte 10 du moyen 6 d'un niveau de tri donné, avancent sur les dents ou griffes 6 ' correspondantes et soit tombent à travers les espaces prévus entre ces der¬ nières dans la goulotte immédiatement en dessous, soit roulent sur ces dents ou griffes, lorsque leur dimension est trop importante, et tombent directement sur les dents ou griffes adjacentes à la goulotte immédiatement en des- sous. Les moyens de criblage 6 sont- disposés sur la ou les parois latérales inclinées 5 avec un décalage de leur partie d'extrémité avant de telle manière que les produits arrivant sur les grilles à barreaux divergents auxdites extrémités soient repris par le moyen 6 disposé immédiatement en dessous. Les longueurs des moyens de criblage 6, en particulier des goulottes 10, sont avanta¬ geusement identiques, de telle sorte que les extrémités desdits moyens 6 s'étendent en biais sur la ou les parois 5, les extrémités arrière débouchant au-dessus d '-une gouttière de récupération oblique 11, qui se termine dans une gouttière inférieure de grande largeur 12 ou au- dessus d'un moyen de transport indépendant s'étendant sous le moyen 6 le plus bas et récupérant les produits de plus grosse granulométrie.The teeth or claws 6 'of the means 6 advantageously have, as shown in FIG. 2 of the accompanying drawings, dimensions and mutual spacings that are proportional to the width of the troughs 10 that they overhang. Thus, the products incompatible with the chute 10 of the means 6 of a given sorting level, advance on the corresponding teeth or claws 6 'and either fall through the spaces provided between these latter in the chute immediately below, or roll on these teeth or claws, when their size is too large, and fall directly on the teeth or claws adjacent to the chute immediately below. The screening means 6 are arranged on the inclined side wall (s) 5 with an offset from their front end part in such a way that the products arriving on the grids with divergent bars at said ends are taken up by means 6 disposed immediately in below. The lengths of the screening means 6, in particular the chutes 10, are advantageously identical, so that the ends of said means 6 extend at an angle on the wall or walls 5, the rear ends opening out above an oblique recovery gutter 11, which ends in a wide lower gutter 12 or above an independent means of transport extending under the lowest means 6 and recovering the products of larger particle size.
A leur partie avant, les goulottes 10 de même largeur d'une ou de deux parois 5 se déversent dans des moyens de réception 13 constitués sous forme de goulottes ou de gouttières ou encore d'un dispositif transporteur, la ou les gouttières inférieures de grande largeur 12 étant également reliées à un tel moyen 13. Ainsi, les différentes granulométries de produits peuvent être éva¬ cuées individuellement vers des postes de traitement ul¬ térieur, sur les côtés du dispositif ou encore à l'avant ou à l'arrière de celui-ci, éventuellement par passage sous ce dernier ou entre ses parois latérales 5.At their front part, the troughs 10 of the same width with one or two walls 5 pour into receiving means 13 constituted in the form of troughs or gutters or else of a conveyor device, the lower gutter or gutters of great width 12 also being connected to such a means 13. Thus, the different particle sizes of products can be evacuated individually to subsequent treatment stations, on the sides of the device or at the front or rear of the latter, possibly by passing under the latter or between its side walls 5.
Selon une variante de réalisation de l'inven¬ tion, non représentée aux dessins annexés, la ou les pa¬ rois inclinées 5 peuvent être reliées à la surface de ré- partition 4 à pivotement au moyen d'une charnière ou ana¬ logue, les moyens 6 étant alors reliés à la ou aux parois 5, également au moyen de charnières, un dispositif de ré¬ glage d'inclinaison étant prévu en partie inférieure, sous la surface 4 et agissant sur la ou les faces inter- nés de la ou des parois 5 et un moyen de maintien à l'ho¬ rizontale étant relié aux goulottes 10 des moyens 6. Le dispositif de réglage, d'inclinaison des pa¬ rois 5 peut être constitué par un vérin hydraulique ou mécanique ou encore par un dispositif à tube télescopique verrouillable au moyen d'une ou de plusieurs goupilles. Le moyen de maintien à l'horizontale peut avan¬ tageusement être constitué, au niveau de chaque paroi 5, par au moins une barre reliée à articulation aux goulot¬ tes 10 et actionnée par l'intermédiaire d'une tringlerie ou d'une came au moyen d'un vérin ou analogue ou au moyen du dispositif de réglage d'inclinaison des parois 5. Conformément à une autre caractéristique de l'invention, chaque goulotte 10 peut avantageusement être équipée, près de son extrémité avant, d'un déflecteur vertical 14 en forme de coin monté sur sa paroi verticale externe et orienté de manière divergente à la paroi 5 correspondante par rapport au sens de progression des produits (figures 2 et 3). De tels déflecteurs permettent une évacuation des produits se trouvant uniquement parti¬ ellement dans les goulottes 10 et dépassant donc la gra- nulometrie admise à cet étage de tri, en favorisant leur basculement sur les dents ou griffes 6 ' , puis leur chute sur le moyen 6 immédiatement en dessous. En outre, du fait de leur orientation en direction opposée à la paroi 5, les déflecteurs 14 empêchent tout risque de bourrage. Le dispositif conforme à l'invention fonctionne de la manière suivante :According to an alternative embodiment of the invention, not shown in the accompanying drawings, the inclined wall or walls 5 can be connected to the distribution surface 4 with pivoting by means of a hinge or ana log, the means 6 then being connected to the wall (s) 5, also by means of hinges, a tilt adjustment device being provided in the lower part, under the surface 4 and acting on the internal surface (s) of the or walls 5 and a means for holding the horizontal bed being connected to the troughs 10 of the means 6. The device for adjusting, tilting the pa¬ kings 5 can be constituted by a hydraulic or mechanical jack or even by a device with a telescopic tube lockable by means of one or more pins. The horizontal holding means can advantageously be constituted, at each wall 5, by at least one bar connected to articulation with the necks 10 and actuated by means of a linkage or a cam by means of a jack or the like or by means of the device for adjusting the inclination of the walls 5. According to another characteristic of the invention, each chute 10 can advantageously be equipped, near its front end, with a deflector vertical 14 wedge-shaped mounted on its external vertical wall and oriented divergently to the corresponding wall 5 relative to the direction of progression of the products (Figures 2 and 3). Such deflectors allow an evacuation of the products being found only partially in the troughs 10 and therefore exceeding the granulometry admitted at this sorting stage, by promoting their tilting on the teeth or claws 6 ', then their fall on the means 6 immediately below. In addition, due to their orientation in the direction opposite to the wall 5, the deflectors 14 prevent any risk of jamming. The device according to the invention operates as follows:
Les produits déversés par l'intermédiaire de la trémie 8 ou par un moyen d'alimentation en continu sur l'aire de réception 3 ou directement sur la surface 4, sont soumis, par le motovibrateur ou l'excitatrice 2 à une vibration ayant pour conséquence de provoquer leur progression en direction de la surface 4 ou sur celle-ci et leur répartition sur cette dernière, ainsi que sur les griffes ou dents 6 ' des moyens de criblage 6 entourant les deux côtés latéraux de la surface 4. Ces produits subissent alors un calibrage sur les griffes ou dents 6' et, en fonction de leur granulo¬ métrie, soit tombent à travers les espaces entre lesdites dents ou griffes dans la goulotte 10 correspondante, soit roulent sur ces dernières et tombent sur le moyen de cri¬ blage 6 immédiatement en dessous.The products discharged via the hopper 8 or by a means of continuous feeding on the reception area 3 or directly on the surface 4, are subjected, by the vibrator or the exciter 2 to a vibration having for consequence of causing their progression towards or on the surface 4 and their distribution on the latter, as well as on the claws or teeth 6 ′ of screening means 6 surrounding the two lateral sides of the surface 4. These products then undergo a calibration on the claws or teeth 6 ′ and, depending on their size, either fall through the spaces between said teeth or claws in the corresponding chute, or roll on the latter and fall on the means. screen 6 immediately below.
Cette opération de criblage se poursuit jusqu'à ce qu'un produit donné puisse être récupéré dans une gou¬ lotte 10 correspondant à sa granulométrie. Afin de réaliser un tri performant, plusieurs goulottes 10, à savoir au moins deux, sont prévues pour chaque dimension de produit.This screening operation continues until a given product can be recovered in a gou¬ monkfish 10 corresponding to its particle size. In order to achieve efficient sorting, several chutes 10, namely at least two, are provided for each product dimension.
En fonction du nombre de granulométries et des rendements désirés, le moyen vibrant 1 peut présenter une ou deux parois 5 de réception des moyens de criblage 6, la longueur de sa surface de répartition, ainsi que sa largeur pouvant également être variables.Depending on the number of particle sizes and the desired yields, the vibrating means 1 can have one or two walls 5 for receiving the screening means 6, the length of its distribution surface and its width can also be variable.
Le tri des produits s'effectue par élimination dans la ou les goulottes 10 supérieures des éléments de plus petite dimension, les autres éléments progressant par gravité vers les moyens 6 situés en-dessous pour su¬ bir un nouveau criblage et une nouvelle élimination, par exemple des éléments intermédiaires. Ce procédé est pour¬ suivi autant de fois qu'il est prévu de granulométries différentes et les éléments de trop grande dimension, qui sont inclassables, sont déversés dans la gouttière infé¬ rieure de grande largeur 12 correspondante et évacués dans un moyen 13 correspondant ou déversés directement sur un moyen de transport indépendant en vue d'un traite- ment ultérieur. De même, les produits triés suivant les diverses granulométries sont récupérés, par classe granu¬ lométrique, à la sortie de la ou des goulottes 10 corres¬ pondantes, également par un moyen 13 pour chaque classe. Grâce à l'invention il est possible de réaliser un dispositif de tri granulométrique de matériaux de na- tures différentes, à savoir de déchets industriels ba¬ nals, notamment de déchets d'incinération, ainsi que d'autres matériaux, en particulier de carrière ou de ré¬ cupération, permettant l'obtention de plusieurs granulo- étries au moyen d'une surface de criblage très importan¬ te avec une emprise au sol relativement faible, le cri¬ blage étant réparti en hauteur et en largeur sur une lon¬ gueur relativement faible.The sorting of the products is carried out by elimination in the upper chute (s) 10 of the elements of smaller dimension, the other elements progressing by gravity towards the means 6 situated below to undergo a new screening and a new elimination, by example of intermediate elements. This process is followed for as many times as is provided with different particle sizes and the elements of too large dimension, which are unclassifiable, are poured into the lower gutter of large width 12 corresponding and evacuated in a means 13 corresponding or dumped directly onto an independent means of transport for further processing. Likewise, the products sorted according to the various particle sizes are recovered, by particle size class, at the outlet of the corresponding chute (s) 10, also by means 13 for each class. Thanks to the invention it is possible to produce a particle size sorting device for natural materials. different sizes, namely basic industrial waste, in particular incineration waste, as well as other materials, in particular quarry or recovery, allowing the production of several granulotries by means of a very large screening surface with a relatively small footprint, the screening being distributed in height and width over a relatively small length.
En outre, le dispositif conforme à l'invention est facilement adaptable au type de criblage à réaliser et présente par rapport à des cribleurs à cascade tradi¬ tionnels, à surface de criblage égale, une hauteur moin¬ dre et une couche de produit répartie sur une plus faible hauteur, de sorte que le criblage est nettement amélioré. De plus, le rendement et la qualité de tri sont nettement améliorés du fait qu'au fur et à mesure du ré¬ trécissement de la surface de répartition 4, les maté¬ riaux chutent vers les moyens de criblage 6 disposés en dessous et effectuent un mouvement de rotation progressif d'un palier vers un autre, de sorte qu'ils se défont et sont mieux criblés .In addition, the device according to the invention is easily adaptable to the type of screening to be carried out and is present with respect to traditional cascade screeners, with equal screening surface, less height and a layer of product distributed over a lower height, so that the screening is significantly improved. In addition, the yield and the sorting quality are markedly improved because, as the distribution surface 4 becomes narrower, the materials fall towards the screening means 6 arranged below and perform a progressive rotational movement from one level to another, so that they come apart and are better screened.
Enfin, le dispositif conforme à l'invention transporte le produit à traiter suivant un parcours en diagonale entraînant une évacuation et un criblage pro- gressifs en cascades, alors que les cribleurs connus réa¬ lisent un criblage successif de toute la couche de maté¬ riaux pendant son déplacement.Finally, the device according to the invention transports the product to be treated along a diagonal path leading to gradual evacuation and screening in cascades, while known screeners perform successive screening of the entire layer of materials. while moving.
Par ailleurs, comparativement à des appareils du type trommel ou transporteur concave à alvéoles, ce dispositif peut fonctionner comme extracteur sous trémie ou être alimenté de toute autre manière, de sorte que des appareils accessoires d'alimentation ne sont pas forcé¬ ment nécessaires, et ne nécessite, en particulier dans le cas de fonctionnement avec trémie, aucune synchronisation avec des moyens d'alimentation en aval. Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins an¬ nexés. Des modifications restent possibles, notamment du point de la constitution des divers éléments ou par subs¬ titution d'équivalents techniques, sans sortir pour au¬ tant du domaine de protection de l'invention. Furthermore, compared with devices of the trommel or concave cell type carrier, this device can function as a hopper extractor or be fed in any other way, so that accessory feeding devices are not necessarily necessary, and does not require, in particular in the case of operation with a hopper, no synchronization with downstream feed means. Of course, the invention is not limited to the embodiment described and shown in the appended drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR92/07166 | 1992-06-09 | ||
| FR9207166A FR2691915B1 (en) | 1992-06-09 | 1992-06-09 | Particle size sorting by vibration. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1993025323A1 true WO1993025323A1 (en) | 1993-12-23 |
Family
ID=9430708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1993/000549 Ceased WO1993025323A1 (en) | 1992-06-09 | 1993-06-09 | Granulometric vibration sorting device |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2691915B1 (en) |
| WO (1) | WO1993025323A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108820784B (en) * | 2018-08-02 | 2024-04-30 | 昆山微容电子企业有限公司 | Electronic components vibration sieving mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347368A (en) * | 1964-07-01 | 1967-10-17 | Mogensen Fredrik Kristian | Screening device |
| US3977525A (en) * | 1975-09-17 | 1976-08-31 | Gallatin Valley Seed Co. | Mechanical removal of flat pod rogues from snap bean seed |
| US4216865A (en) * | 1978-06-15 | 1980-08-12 | Dudley Robert G | Whole fruit size grader |
| EP0482683A1 (en) * | 1990-10-23 | 1992-04-29 | METALLGESELLSCHAFT Aktiengesellschaft | Method and apparatus for separating a flow of bulk material into fractions of different grain size |
-
1992
- 1992-06-09 FR FR9207166A patent/FR2691915B1/en not_active Expired - Fee Related
-
1993
- 1993-06-09 WO PCT/FR1993/000549 patent/WO1993025323A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347368A (en) * | 1964-07-01 | 1967-10-17 | Mogensen Fredrik Kristian | Screening device |
| US3977525A (en) * | 1975-09-17 | 1976-08-31 | Gallatin Valley Seed Co. | Mechanical removal of flat pod rogues from snap bean seed |
| US4216865A (en) * | 1978-06-15 | 1980-08-12 | Dudley Robert G | Whole fruit size grader |
| EP0482683A1 (en) * | 1990-10-23 | 1992-04-29 | METALLGESELLSCHAFT Aktiengesellschaft | Method and apparatus for separating a flow of bulk material into fractions of different grain size |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2691915B1 (en) | 1994-09-09 |
| FR2691915A1 (en) | 1993-12-10 |
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