EP0098207B1 - Purifying device for products such as foodstuffs, and purifying installation including said device - Google Patents

Purifying device for products such as foodstuffs, and purifying installation including said device Download PDF

Info

Publication number
EP0098207B1
EP0098207B1 EP19830401275 EP83401275A EP0098207B1 EP 0098207 B1 EP0098207 B1 EP 0098207B1 EP 19830401275 EP19830401275 EP 19830401275 EP 83401275 A EP83401275 A EP 83401275A EP 0098207 B1 EP0098207 B1 EP 0098207B1
Authority
EP
European Patent Office
Prior art keywords
drum
products
purifying
internal surface
collecting
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.)
Expired
Application number
EP19830401275
Other languages
German (de)
French (fr)
Other versions
EP0098207A1 (en
Inventor
André Plantier
Joseph Coppolani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franco Europeenne De Materiel Pour L'industrie Alimentaire "femia" Ste
Original Assignee
Franco Europeenne De Materiel Pour L'industrie Alimentaire "femia" Ste
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Franco Europeenne De Materiel Pour L'industrie Alimentaire "femia" Ste filed Critical Franco Europeenne De Materiel Pour L'industrie Alimentaire "femia" Ste
Publication of EP0098207A1 publication Critical patent/EP0098207A1/en
Application granted granted Critical
Publication of EP0098207B1 publication Critical patent/EP0098207B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • 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
    • B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
    • 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
    • B07B15/00—Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
    • 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
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets

Definitions

  • the present invention relates to a device for purifying, by mechanical treatment, of products containing elements which can be entrained by a surface by capillary adhesion on said surface.
  • a more particular subject of the invention is the purification by mechanical treatment of products which can move on a surface under the effect of their own weight, such as foodstuffs picked in bulk, for example peas, to separate them from the leaves. of plants, pods, herbs or other similar materials which can adhere, for example by capillarity on a surface, collected at the same time as the said foodstuffs, at the place of harvest.
  • the invention also relates to an installation for the purification and cleaning of these foodstuffs.
  • a device for purifying by mechanical treatment, products which can move over a surface under the effect of their own weight, such as as foodstuffs, for example peas or the like, or granular products, of the type comprising a drum in the form of a cylindrical hollow tube, mounted to rotate about an axis inclined relative to the horizontal, means for rotating of said drum, means for feeding products into said drum at its upper end, means for collecting the purified products at the lower end of said drum, and means for removing and collecting the elements adhering to the interior surface of said drum.
  • the present invention therefore relates to an improvement to this device allowing better purification of the products thanks to a more complete elimination, of the harvest, of the impurities.
  • the present invention relates to a device of the type described above, and characterized in that the inner surface of the drum has a multilobed cross section, advantageously regular and of concavity turned towards the inside of the drum.
  • the shape of the lobes allows better mixing of the products inside the drum and makes it possible to reduce their radial displacement in the drum, thus making it possible to improve the purification of the products.
  • the interior surface of the aforementioned cylinder is advantageously an icy appearance surface, preferably an icy metallic surface; which promotes the adhesion effect on the inclined surface.
  • the products to be purified and / or the interior surface of the aforementioned cylinder are moistened before the products are introduced into the aforementioned drum.
  • the aforementioned means for taking off and collecting the elements adhering to the interior surface of the aforementioned drum include a squeegee member, one edge of which is kept in constant contact with the interior surface of the drum, along substantially a generator thereof located downstream. of the product feed zone with respect to the direction of rotation of the drum, and advantageously at the top of said drum, and a member such as a conveyor belt or a vibrating trough for collecting said detached elements and evacuating them therefrom. outside the drum.
  • the aforementioned squeegee member is provided on its edge in contact with the inner surface of the drum with a strip made of a material with elastic property such as, for example, rubber or a synthetic material.
  • the aforementioned squeegee member is supported at each of its ends by an arm system mounted pivotally and actuated by at least one spring to maintain the aforementioned strip in constant contact with the internal surface of the drum.
  • the device comprises deflectors defining a chute between the aforementioned squeegee member and the aforementioned conveyor member.
  • the aforementioned means for feeding the products into the aforementioned drum comprise a feed hopper and an endless band in rotation, said band being disposed on the lower surface of the hopper, and being inclined relative to the horizontal, the strip having a direction of movement opposite to the direction of movement of the products thereon.
  • the invention also relates to an installation for purifying products such as, for example, foodstuffs or granular products, of the type comprising in particular and successively a device for purifying by gravity in an ascending current of air, an apparatus for sieving and a food washing device, characterized in that it comprises, at the start of the chain, a purification device according to the invention for pre-cleaning the products before or after their passage through the purification device by gravity in an updraft.
  • the purification device comprises a drum 1 in the form of a cylindrical tube mounted in rotation on for example two pairs of rollers 2 mounted on a base 8 and of which at least one pair is driven by a motor 3 and a pulley and belt transmission system 4, clearly visible in FIG. 2.
  • the axis la around which the drum 1 rotates is inclined relative to the horizontal at an angle which is adjusted as a function of the desired speed of advancement of the products substantially along a longitudinal generator of the drum 1, for example , by the threaded feet 26.
  • the drum 1 is constituted by a cylindrical tube 5 made for example of stainless steel or any other material, and two rings 6 forming a raceway for the rollers 2, for example aluminum.
  • the cylindrical tube 5 has a multilobed interior cross section, advantageously curvilinear and regular.
  • the inner surface of the lobes 7 is advantageously glazed.
  • the device of the invention comprises means for supplying the products to the upper end 1b of the drum 1.
  • These supply means comprise a hopper 9 and an endless belt 10 mounted at the bottom of the hopper 9 and inclined adjustable by the system of threaded rods 10a relative to the horizontal.
  • the endless belt 10 moves along arrow F, and is advantageously cleaned by a squeegee 11 mounted at a point located downstream of the hopper 9 relative to arrow F and maintained in constant contact on the surface of the belt so take off the waste or adherent elements entrained by the endless belt 10 and pour them into a bin (not shown).
  • the purification device comprises a member 12 forming a squeegee extending over the entire length of the drum 1 and being in permanent contact with the interior surface of the drum defined by the lobes 7, and substantially following a generatrix of the upper zone of the drum 1
  • the squeegee 12 is constituted, for example, by a metal bar 12a connected by uprights 13 to a parallel metal rod 14 for support, the bar 12a is provided on its free edge with a band 21 with elastic property to allow contact easy with the internal surface of the lobes 7.
  • this strip 21 must have sufficient rigidity to detach the elements adhering to the internal surface of the lobes 7.
  • the squeegee 12 is supported at each of its ends by an arm system 15 mounted pivoting about an axis 16 supported by an upright 17 of the frame of the purification machine.
  • the other end of the arms is connected to a rod 18 forming a guide rod by a spring system 19 or counterweight making it possible to constantly apply the elastic band 21 to the internal surface of the lobes 7, or of the drum 1 whatever the shape of this surface.
  • this system 15 of arms supporting the squeegee 12 is given simply by way of example, and can be replaced by any system making it possible to maintain the squeegee 12 in constant application on the inner surface of the lobes 7.
  • the device also comprises a means 20 for collecting the elements detached by the squeegee 12.
  • This means is advantageously constituted by a conveyor belt in the form of a trough, or a vibrating trough, extending below the squeegee 12 over the entire length of the drum 1 and of which at least one end 20a projects outside the drum in order to evacuate the adherent elements peeled off by the squeegee 12 and collect them in a receiving tank not illustrated by means of a squeegee 25.
  • the frame of the transporter 20 is fixed to the uprights 17 of the frame of the device of the invention.
  • the two transpor belt tensioners 10, 20 are driven by the same motor by means of a system of pulleys and belts 22. Furthermore, the belt of the conveyor 20 is held in place by idle rollers 23.
  • deflectors 24 are arranged on either side of the squeegee 12 to form a chute for guiding the adhesive elements detached directly on the conveyor belt 20.
  • the elements having adhesion properties on the icy surface of the lobes 7, such as for example plant leaves, pods or pod waste, are driven in rotation by the drum 1. Arrived at the level of the squeegee 12, they are detached from the interior surface of the drum 1 by the strip 21 and fall on the conveyor strip 20 then are evacuated outside the drum and collected by means of the squeegee 25.
  • the method and the device of the invention make it possible to extract a large part of the waste from pods, leaves or other content in the peas fed in the hopper 9.
  • the peas collected at the lower end 1 c of the drum 1 can be fed directly by the hopper 27 in a purification device with an ascending air stream to continue the purification with a good yield and an increased treatment flow.
  • the peas fed into the device are already pre-cleaned, without the risk of clogging the purification device in an ascending air stream or clogging of the sieve device.
  • the method and the device of the invention can be used for products other than peas such as for example for the separation of plastic balls from the sheets, threads or other plastic waste. Furthermore, it is easily understandable that the device and the method of the invention can be used not only for pre-cleaning or pre-purifying products but for carrying out complete purification depending on the nature of the products to be separated.
  • the shape of the lobes 7 allows better mixing of the products inside the drum and makes it possible to reduce their radial displacement in the drum and is particularly suitable for the treatment of peas.
  • the drum 1 may consist of a single piece whose inner surface has been glazed.

Landscapes

  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Description

La présente invention concerne un dispositif d'épuration, par traitement mécanique, de produits contenant des éléments pouvant être entraînés par une surface par adhérence capillaire sur ladite surface.The present invention relates to a device for purifying, by mechanical treatment, of products containing elements which can be entrained by a surface by capillary adhesion on said surface.

L'invention a plus particulièrement pour objet l'épuration par traitement mécanique de produits pouvant se déplacer sur une surface sous l'effet de leur propre poids, tels que des denrées alimentaires cueillies en vrac par exemple des pois, pour séparer ces dernières des feuilles de plantes, cosses, herbes ou autres matériaux analogues pouvant adhérer, par exemple par capillarité sur une surface, ramassés en même temps que lesdites denrées, sur le lieu de récolte. L'invention concerne également une installation pour l'épuration et le nettoyage de ces denrées alimentaires.A more particular subject of the invention is the purification by mechanical treatment of products which can move on a surface under the effect of their own weight, such as foodstuffs picked in bulk, for example peas, to separate them from the leaves. of plants, pods, herbs or other similar materials which can adhere, for example by capillarity on a surface, collected at the same time as the said foodstuffs, at the place of harvest. The invention also relates to an installation for the purification and cleaning of these foodstuffs.

On connaît déjà plusieurs dispositifs et procédés pour épurer des produits tels que des denrées alimentaires et notamment des pois. Ces procédés consistent essentiellement à éliminer les éléments légers en alimentant la récolte dans un courant d'air ascendant, à recueillir les pois non entraînés par le courant d'air et à les tamiser à l'aide de tamis de différentes dimensions de maille et enfin à les laver.Several devices and methods are already known for purifying products such as foodstuffs and in particular peas. These methods essentially consist in eliminating the light elements by feeding the crop in an ascending air stream, in collecting the peas not entrained by the air stream and in sieving them using sieves of different mesh dimensions and finally to wash them.

Toutefois, la culture à l'échelle industrielle de ces denrées alimentaires a entraîné notamment la mécanisation de la cueillette des récoltes. De ce fait, là où les techniques anciennes manuelles et mécaniques de fauchages et ramassages étaient nécessaires pour récolter les pois, une seule machine spécialisée peut maintenant convenir. Cependant, cette machine, aussi perfectionnée soit elle, ne peut réaliser une cueillette aussi »propre« que par le passé. Par ailleurs, l'écossage des pois a été également automatisé ce qui a augmenté la quantité de gousses ou déchets de gousses contenus dans les pois à traiter. Donc le traitement ultérieur d'épuration du mélange formé par tous ces produits s'avère nécessaire pour extraire les denrées consommables dudit mélange.However, the cultivation on an industrial scale of these foodstuffs has notably led to the mechanization of harvesting crops. Therefore, where the old manual and mechanical mowing and harvesting techniques were necessary to harvest the peas, a single specialized machine can now be used. However, this machine, as sophisticated as it is, can not perform as "clean" picking as in the past. In addition, the shelling of peas has also been automated, which has increased the quantity of pods or pod waste contained in the peas to be treated. Therefore, the subsequent purification treatment of the mixture formed by all of these products is necessary to extract the consumable products from said mixture.

Les procédés d'épuration et de séparation connus et décrits succinctement ci-dessus donnent de bons résultats si le pourcentage d'éléments à éliminer contenus dans la récolte est relativement faible. Au-dessus d'un certain pourcentage, il est nécessaire de diminuer le débit de traitement de ces appareils pour obtenir, en bout d'installation, un produit consommable »propre«. Toutefois, pour maintenir la qualité du produit, il est souvent nécessaire d'augmenter le débit d'air dans le procédé de séparation dans un courant d'air ascendant, ce qui provoque l'entraînement d'une partie des denrées consommables et donc diminue le rendement global de l'installation d'épuration.The known purification and separation methods described briefly above give good results if the percentage of elements to be eliminated contained in the crop is relatively low. Above a certain percentage, it is necessary to reduce the processing throughput of these devices in order to obtain, at the end of the installation, a "clean" consumable product. However, to maintain the quality of the product, it is often necessary to increase the air flow in the separation process in an ascending air stream, which causes the entrainment of part of the consumable foodstuffs and therefore decreases the overall performance of the treatment plant.

On connaît également notamment de part l'enseignement des brevets américains n° 3 507 387 et n° 3 508 645 un dispositif d'épuration par traitement mécanique, de produits pouvant se déplacer sur une surface sous l'effet de leur propre poids, tels que des denrées alimentaires, par exemple des pois ou analogues, ou des produits granuleux, du type comprenant un tambour en forme de tube creux cylindrique, monté rotatif autour d'un axe incliné par rapport à l'horizontale, des moyens de mise en rotation dudit tambour, des moyens d'alimentation des produits dans ledit tambour à son extrémité supérieure, des moyens pour recueillir les produits épurés à l'extrémité inférieure dudit tambour, et des moyens pour décoller et recueillir les éléments adhérant à la surface intérieure dudit tambour.Particularly also known from the teaching of American patents No. 3,507,387 and No. 3,508,645 is a device for purifying by mechanical treatment, products which can move over a surface under the effect of their own weight, such as as foodstuffs, for example peas or the like, or granular products, of the type comprising a drum in the form of a cylindrical hollow tube, mounted to rotate about an axis inclined relative to the horizontal, means for rotating of said drum, means for feeding products into said drum at its upper end, means for collecting the purified products at the lower end of said drum, and means for removing and collecting the elements adhering to the interior surface of said drum.

La présente invention a donc pour objet un perfectionnement à ce dispositif permettant une meilleure épuration des produits grâce à une élimination plus complète, de la récolte, des impuretés.The present invention therefore relates to an improvement to this device allowing better purification of the products thanks to a more complete elimination, of the harvest, of the impurities.

A cet effet, la présente invention a pour objet un dispositif du type décrit ci-dessus, et caractérisé en ce que la surface intérieure du tambour a une section transversale multilobée, avantageusement régulière et de concavité tournée vers l'intérieur du tambour.To this end, the present invention relates to a device of the type described above, and characterized in that the inner surface of the drum has a multilobed cross section, advantageously regular and of concavity turned towards the inside of the drum.

La forme des lobes permet un meilleur brassage des produits à l'intérieur du tambour et permet de diminuer leur déplacement radial dans le tambour en permettant ainsi d'améliorer l'épuration des produits.The shape of the lobes allows better mixing of the products inside the drum and makes it possible to reduce their radial displacement in the drum, thus making it possible to improve the purification of the products.

La surface intérieure du cylindre précité est avantageusement une surface à aspect glacé, de préférence une surface métallique glacée; ce qui favorise l'effet d'adhérence sur la surface inclinée.The interior surface of the aforementioned cylinder is advantageously an icy appearance surface, preferably an icy metallic surface; which promotes the adhesion effect on the inclined surface.

De préférence, les produits à épurer et/ou la surface intérieure du cylindre précité sont humidifiés avant l'introduction des produits dans le tambour précité.Preferably, the products to be purified and / or the interior surface of the aforementioned cylinder are moistened before the products are introduced into the aforementioned drum.

Avantageusement, les moyens précités pour décoller et recueillir les éléments adhérant à la surface intérieure du tambour précitée comprennent un organe formant raclette dont un bord est maintenu en contact constant avec la surface intérieure du tambour, selon sensiblement une génératrice de celle-ci située en aval de la zone d'alimentation des produits par rapport au sens de rotation du tambour, et avantageusement à la partie supérieure dudit tambour, et un organe tel qu'un transporteur à bande ou une auge vibrante pour recueillir lesdits éléments décollés et les évacuer à l'extérieur du tambour.Advantageously, the aforementioned means for taking off and collecting the elements adhering to the interior surface of the aforementioned drum include a squeegee member, one edge of which is kept in constant contact with the interior surface of the drum, along substantially a generator thereof located downstream. of the product feed zone with respect to the direction of rotation of the drum, and advantageously at the top of said drum, and a member such as a conveyor belt or a vibrating trough for collecting said detached elements and evacuating them therefrom. outside the drum.

De préférence, l'organe précité formant raclette est pourvu sur son bord en contact avec la surface intérieure du tambour d'une bande constituée en un matériau à propriété élastique tel que, par exemple, du caoutchouc ou une matière synthétique.Preferably, the aforementioned squeegee member is provided on its edge in contact with the inner surface of the drum with a strip made of a material with elastic property such as, for example, rubber or a synthetic material.

Avantageusement, l'organe précité formant raclette est supporté à chacune de ses extrémités par un système de bras monté pivotant et actionné par au moins un ressort pour maintenir la bande précitée en contact constant avec la surface intérieure du tambour.Advantageously, the aforementioned squeegee member is supported at each of its ends by an arm system mounted pivotally and actuated by at least one spring to maintain the aforementioned strip in constant contact with the internal surface of the drum.

De préférence, le dispositif comprend des déflecteurs définissant une goulotte entre l'organe formant raclette précité et l'organe transporteur précité.Preferably, the device comprises deflectors defining a chute between the aforementioned squeegee member and the aforementioned conveyor member.

Avantageusement, les moyens d'alimentation précités des produits dans le tambour précité comprennent une trémie d'alimentation et une bande sans fin en rotation, ladite bande étant disposée à la surface inférieure de la trémie, et étant inclinée par rapport à l'horizontale, la bande ayant un sens de déplacement opposé au sens de déplacement des produits sur celle-ci.Advantageously, the aforementioned means for feeding the products into the aforementioned drum comprise a feed hopper and an endless band in rotation, said band being disposed on the lower surface of the hopper, and being inclined relative to the horizontal, the strip having a direction of movement opposite to the direction of movement of the products thereon.

L'invention vise également une installation d'épuration de produits tels que, par exemple, des denrées alimentaires ou des produits granuleux, du type comprenant notamment et successivement un dispositif d'épuration par gravité dans un courant ascendant d'air, un appareil de tamisage et un appareil de lavage des denrées alimentaires, caractérisée en ce qu'elle comprend en début de chaîne, un dispositif d'épuration conforme à l'invention pour pré-nettoyer les produits avant ou après leur passage dans le dispositif d'épuration par gravité dans un courant d'air ascendant.The invention also relates to an installation for purifying products such as, for example, foodstuffs or granular products, of the type comprising in particular and successively a device for purifying by gravity in an ascending current of air, an apparatus for sieving and a food washing device, characterized in that it comprises, at the start of the chain, a purification device according to the invention for pre-cleaning the products before or after their passage through the purification device by gravity in an updraft.

L'invention sera mieux comprise et d'autres caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement à la lumière de la description explicative qui va suivre d'un dispositif selon l'invention, donné uniquement à titre d'exemple et faite en référence aux dessins non limitatifs annexés dans lesquels:

  • La figure 1 représente schématiquement une vue en élévation de l'appareil conforme à l'invention, avec arrachements partiels;
  • la figure 2 est une vue suivant la flèche Il de la figure 1 de l'extrémité supérieure du dispositif conforme à l'invention, avec arrachements partiels; et
  • la figure 3 est une vue en coupe selon la ligne III-III de la figure 1.
The invention will be better understood and other characteristics, details and advantages thereof will appear more clearly in the light of the following explanatory description of a device according to the invention, given solely by way of example and made with reference to the accompanying nonlimiting drawings in which:
  • Figure 1 schematically shows an elevational view of the apparatus according to the invention, with partial cutaway;
  • Figure 2 is a view along arrow II of Figure 1 of the upper end of the device according to the invention, with partial cutaway; and
  • Figure 3 is a sectional view along line III-III of Figure 1.

En se référant aux figures et plus particulièrement à la figure 1, le dispositif d'épuration conforme à l'invention comprend un tambour 1 en forme de tube cylindrique monté en rotation sur par exemple deux paires de galets 2 montés sur un socle 8 et dont au moins une paire est entraînée par un moteur 3 et un système de transmission par poulies et courroies 4, clairement visible à la figure 2.Referring to the figures and more particularly to Figure 1, the purification device according to the invention comprises a drum 1 in the form of a cylindrical tube mounted in rotation on for example two pairs of rollers 2 mounted on a base 8 and of which at least one pair is driven by a motor 3 and a pulley and belt transmission system 4, clearly visible in FIG. 2.

L'axe la autour duquel le tambour 1 tourne, est incliné par rapport à l'horizontale selon un angle qui est réglé en fonction de la vitesse d'avancement désirée des produits sensiblement le long d'une génératrice longitudinale du tambour 1, par exemple, par les pieds filetés 26.The axis la around which the drum 1 rotates, is inclined relative to the horizontal at an angle which is adjusted as a function of the desired speed of advancement of the products substantially along a longitudinal generator of the drum 1, for example , by the threaded feet 26.

Comme illustré à la figure 3, le tambour 1 est constitué par un tube cylindrique 5 réalisé par exemple en acier inoxydable ou tout autre matériau, et deux couronnes 6 formant chemin de roulement pour les galets 2, par exemple en aluminium. Selon l'invention, le tube cylindrique 5 a une section transversale intérieure multilobée, avantageusement curviligne et régulière.As illustrated in Figure 3, the drum 1 is constituted by a cylindrical tube 5 made for example of stainless steel or any other material, and two rings 6 forming a raceway for the rollers 2, for example aluminum. According to the invention, the cylindrical tube 5 has a multilobed interior cross section, advantageously curvilinear and regular.

Cette forme de section transversale présente des avantages importants qui seront décrits ultérieurement.This form of cross section has important advantages which will be described later.

Selon l'invention, la surface intérieure des lobes 7 est avantageusement glacée.According to the invention, the inner surface of the lobes 7 is advantageously glazed.

Le dispositif de l'invention comprende des moyens d'alimentation des produits à l'extrémité supérieure 1b du tambour 1. Ces moyens d'alimentation comprennent une trémie 9 et une bande sans fin 10 montée à la partie inférieure de la trémie 9 et inclinée de manière réglable par le système de tiges filetées 10a par rapport à l'horizontale. La bande sans fin 10 se déplace selon la flèche F, et est nettoyée avantageusement par une raclette 11 montée en un point situé en aval de la trémie 9 par rapport à la flèche F et maintenue en contact constant sur la surface de la bande pour ainsi décoller les déchets ou éléments adhérents entraînés par la bande sans fin 10 et les déverser dans un bac (non représenté).The device of the invention comprises means for supplying the products to the upper end 1b of the drum 1. These supply means comprise a hopper 9 and an endless belt 10 mounted at the bottom of the hopper 9 and inclined adjustable by the system of threaded rods 10a relative to the horizontal. The endless belt 10 moves along arrow F, and is advantageously cleaned by a squeegee 11 mounted at a point located downstream of the hopper 9 relative to arrow F and maintained in constant contact on the surface of the belt so take off the waste or adherent elements entrained by the endless belt 10 and pour them into a bin (not shown).

Le dispositif d'épuration comprend un organe 12 formant raclette s'étendant sur toute la longueur du tambour 1 et étant en contact permanent avec la surface intérieure du tambour définie par les lobes 7, et suivant sensiblement une génératrice de la zone supérieure du tambour 1. La raclette 12 est constituée, par exemple, par une barre métallique 12a reliée par des montants 13 à une tige métallique parallèle 14 de support, la barre 12a est pourvue sur son bord libre d'une bande 21 à propriété élastique pour permettre un contact aisé avec la surface intérieure des lobes 7. Toutefois, cette bande 21 doit présenter une rigidité suffisante pour réaliser le décollement des éléments adhérant à la surface intérieure des lobes 7.The purification device comprises a member 12 forming a squeegee extending over the entire length of the drum 1 and being in permanent contact with the interior surface of the drum defined by the lobes 7, and substantially following a generatrix of the upper zone of the drum 1 The squeegee 12 is constituted, for example, by a metal bar 12a connected by uprights 13 to a parallel metal rod 14 for support, the bar 12a is provided on its free edge with a band 21 with elastic property to allow contact easy with the internal surface of the lobes 7. However, this strip 21 must have sufficient rigidity to detach the elements adhering to the internal surface of the lobes 7.

La raclette 12 est supportée à chacune de ses extrémités par un système de bras 15 monté pivotant autour d'un axe 16 supporté par un montant 17 du bâti de la machine d'épuration. L'autre extrémité des bras est reliée à une tige 18 formant tige guide par un système de ressort 19 ou contrepoids permettant d'appliquer constamment la bande élastique 21 sur la surface interne des lobes 7, ou du tambour 1 quelle que soit la forme de cette surface.The squeegee 12 is supported at each of its ends by an arm system 15 mounted pivoting about an axis 16 supported by an upright 17 of the frame of the purification machine. The other end of the arms is connected to a rod 18 forming a guide rod by a spring system 19 or counterweight making it possible to constantly apply the elastic band 21 to the internal surface of the lobes 7, or of the drum 1 whatever the shape of this surface.

Bien entendu, ce système 15 de bras supportant la raclette 12 est donné simplement à titre d'exemple, et peut être remplacé par tout système permettant de maintenir la raclette 12 en application constante sur la surface intérieure des lobes 7.Of course, this system 15 of arms supporting the squeegee 12 is given simply by way of example, and can be replaced by any system making it possible to maintain the squeegee 12 in constant application on the inner surface of the lobes 7.

Le dispositif comprend également un moyen 20 pour recueillir les éléments décollés par la raclette 12. Ce moyen est constitué avantageusement par un transporteur à bande en forme d'auge, ou une auge vibrante, s'étendant en dessous de la raclette 12 sur toute la longueur du tambour 1 et dont au moins une extrémité 20a fait saillie à l'extérieur du tambour pour évacuer les éléments adhérents décollés par la raclette 12 et les recueillir dans un bac de réception non illustré au moyen d'une raclette 25.The device also comprises a means 20 for collecting the elements detached by the squeegee 12. This means is advantageously constituted by a conveyor belt in the form of a trough, or a vibrating trough, extending below the squeegee 12 over the entire length of the drum 1 and of which at least one end 20a projects outside the drum in order to evacuate the adherent elements peeled off by the squeegee 12 and collect them in a receiving tank not illustrated by means of a squeegee 25.

Le bâti du transporteur 20 est fixé sur les montants 17 du bâti du dispositif de l'invention.The frame of the transporter 20 is fixed to the uprights 17 of the frame of the device of the invention.

Comme illustré à la figure 2, les deux transporteurs à bande 10, 20 sont entraînés par un même moteur au moyen d'un système de poulies et courroies 22. Par ailleurs, la bande du transporteur 20 est maintenue, par des rouleaux montés fou 23.As illustrated in Figure 2, the two transpor belt tensioners 10, 20 are driven by the same motor by means of a system of pulleys and belts 22. Furthermore, the belt of the conveyor 20 is held in place by idle rollers 23.

Pour éviter que les éléments adhérents décollés par la raclette 12 tombent à l'extérieur de la bande du transporteur 20, des déflecteurs 24 sont disposées de part et d'autre de la raclette 12 pour former une goulotte permettant de guider les éléments adhérents décollés directement sur la bande du transporteur 20.To prevent the adhesive elements detached by the squeegee 12 falling outside the conveyor belt 20, deflectors 24 are arranged on either side of the squeegee 12 to form a chute for guiding the adhesive elements detached directly on the conveyor belt 20.

On décrira maintenant le fonctionnement du dispositif de l'invention, notamment lors de son utilisation pour épurer ou nettoyer des pois après leur écossage mécanique. Ces pois sont alimentés dans la trémie 9 et tombent à l'intérieur du tambour 1 en roulant sur la bande sans fin inclinée 10. Comme la bande inclinée 10 se déplace en sens opposé du déplacement des pois, des éléments présentant une adhérence sur la surface de la bande inclinée 10 sont entraînés par celle-ci et séparés de l'ensemble des pois tombant dans le tambour 1, ces éléments adhérents sont recueillis au moyen de la raclette 11.The operation of the device of the invention will now be described, in particular when it is used to purify or clean peas after their mechanical shelling. These peas are fed into the hopper 9 and fall inside the drum 1 by rolling on the inclined endless strip 10. As the inclined strip 10 moves in the opposite direction of movement of the peas, elements having adhesion to the surface of the inclined strip 10 are driven by the latter and separated from the set of peas falling into the drum 1, these adherent elements are collected by means of the squeegee 11.

Le tambour tournant selon le sens indiqué par la flèche R, une certaine quantité de pois sont entraînés en rotation par les lobes 7 sur une petite distance et retombent automatiquement dans un lobe inférieur suivant, de plus ils progressent vers l'extrémité inférieure 1 du tambour 1 par l'effet de gravité le long d'une génératrice dudit tambour 1.The drum rotating in the direction indicated by the arrow R, a certain amount of peas are rotated by the lobes 7 over a small distance and automatically fall into a next lower lobe, moreover they progress towards the lower end 1 of the drum 1 by the effect of gravity along a generatrix of said drum 1.

Au contraire, les éléments présentant des propriétés d'adhérence sur la surface glacée des lobes 7, tels que par exemple des feuilles de plantes, les gousses ou les déchets de gousses, sont entraînés en rotation par le tambour 1. Arrivés au niveau de la raclette 12, ils sont décollés de la surface intérieure du tambour 1 par la bande 21 et tombent sur la bande du transporteur 20 puis sont évacués à l'extérieur du tambour et recueillis au moyen de la raclette 25.On the contrary, the elements having adhesion properties on the icy surface of the lobes 7, such as for example plant leaves, pods or pod waste, are driven in rotation by the drum 1. Arrived at the level of the squeegee 12, they are detached from the interior surface of the drum 1 by the strip 21 and fall on the conveyor strip 20 then are evacuated outside the drum and collected by means of the squeegee 25.

L'adhérence des feuilles ou gousses est souvent due à la présence d'humidité ou de sucs sur leur surface.The adhesion of leaves or pods is often due to the presence of moisture or juices on their surface.

Pour provoquer cette adhérence, il est possible d'humidifier les produits alimentés dans la trémie 9 ou d'humidifier la surface intérieure des lobes 7, par tout liquide convenable et notamment avec de l'eau.To cause this adhesion, it is possible to moisten the products fed into the hopper 9 or to moisten the inner surface of the lobes 7, by any suitable liquid and in particular with water.

Ainsi, le procédé et le dispositif de l'invention permettent d'extraire une grande partie des déchets de gousses, feuilles ou autres contenus dans les pois alimentés dans la trémie 9.Thus, the method and the device of the invention make it possible to extract a large part of the waste from pods, leaves or other content in the peas fed in the hopper 9.

Ainsi, les pois recueillis à l'extrémité inférieure 1 c du tambour 1 peuvent être alimentés directement par la trémie 27 dans un dispositif d'épuration à courant d'air ascendant pour continuer l'épuration avec un bon rendement et un débit de traitement augmenté comme les pois alimentés dans le dispositif sont déjà pré-nettoyés, sans risque d'engorgement du dispositif d'épuration dans un courant d'air ascendant ou de colmatage du dispositif à tamis.Thus, the peas collected at the lower end 1 c of the drum 1 can be fed directly by the hopper 27 in a purification device with an ascending air stream to continue the purification with a good yield and an increased treatment flow. as the peas fed into the device are already pre-cleaned, without the risk of clogging the purification device in an ascending air stream or clogging of the sieve device.

Bien entendu, le procédé et le dispositif de l'invention peuvent être utilisés pour d'autres produits que des pois tels que par exemple pour la séparation de billes en matière synthétique des feuilles, fils ou autres déchets de matière synthétique. Par ailleurs, il est aisément compréhensible que le dispositif et le procédé de l'invention peuvent être utilisés non seulement pour pré-nettoyer ou pré-épurer des produits mais pour réaliser l'épuration complète selon la nature des produits à séparer.Of course, the method and the device of the invention can be used for products other than peas such as for example for the separation of plastic balls from the sheets, threads or other plastic waste. Furthermore, it is easily understandable that the device and the method of the invention can be used not only for pre-cleaning or pre-purifying products but for carrying out complete purification depending on the nature of the products to be separated.

En outre, la forme des lobes 7 permet un meilleur brassage des produits à l'intérieur du tambour et permet de diminuer leur déplacement radial dans le tambour et est particulièrement adaptée pour le traitement des pois. Par ailleurs, le tambour 1 peut être constitué d'une seule pièce dont la surface intérieure a été glacée.In addition, the shape of the lobes 7 allows better mixing of the products inside the drum and makes it possible to reduce their radial displacement in the drum and is particularly suitable for the treatment of peas. Furthermore, the drum 1 may consist of a single piece whose inner surface has been glazed.

Claims (9)

1. A device for purifying, through mechanical treatment, products capable of moving on a surface from their own weight, such as foodstuffs, e. g. peas or the like, or granular products, of the type including a drum (1) in the form of a cylindrical hollow tube rotatable about an axis (1a) inclines with respect to the horizontal, means for rotating the said drum (1), means for feeding the products into the said drum (1) at its upper end (1 b), means for collecting the purified products at the lower end (1c) of the said drum, and means for detaching and collecting the elements adhering to the internal surface of the said drum, characterized in that the internal surface of the drum (1) in cross-section is multi-lobate (7), advantageously regular and with a concavity looking towards the interior of the drum.
2. A device according to claim 1, characterized in that the internal surface of the said cylinder is a surface with a glossy appearance, preferably a glazed metal surface.
3. A device according to claim 1 or 2, characterized in that the products to be purified and/or the internal surface of the said cylinder are humidified before introducing the products into the said drum.
4. A device according to one of claims 1 to 3, characterized in that the said means for detaching and collecting the elements adhering to the internal surface of the said drum (1) include a scraper member (12) one edge of which is maintained in permanent contact with the internal surface of the drum (1), substantially along a generatrix of the latter located downstream of the product feeding region with respect to the direction of rotation of the drum, and advantageously at the upper portion of the said drum (1), and a member (20) such as a belt conveyor or a vibrating through for collecting the said unde- tached elements and discharging them outside of the drum (1).
5. A device according to claim 4, characterized in that the said scraper member (12) is provided on its edge in contact with the internal surface of the drum (1) with a strip (21) constituted by a material with resilient properties such as, for example, rubber or a synthetic material.
6. A device according to claim 5, characterized in that the said scraper member (12) is supported at each of its ends by a pivotally mounted system (15) of arms actuated by at least one spring (19) to maintain the said strip (21) in permanent contact with the internal surface of the drum (1).
7. A device according to one of claims 4 to 6, characterized in that it includes baffleplates (24) defining a shoot between the said scraper member (12) and the said conveyor member (20).
8. A device according to one of claims 1 to 7, characterized in that the said means for feeding the products into the said drum (1) include a feeding hopper (9) and a rotating endless belt (10), the said belt (10) being arranged at the lower surface of the hopper (9) and being inclined with respect to the horizontal, the said belt having an opposite direction of displacement (F) to the direction of displacement of the products on the latter.
9. An installation for purifying products such as foodstuffs, for example peas, or granular products, of the type including particularly and successively a device for purifying the products by gravity in an ascending flow of air, a device for sifting the products and a washing device, characterized in that it includes a purifying device according to one of claims 1 to 8, arranged before or after the purifying device in an ascending flow of air, for precleaning the products.
EP19830401275 1982-06-21 1983-06-20 Purifying device for products such as foodstuffs, and purifying installation including said device Expired EP0098207B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8210823A FR2528729B1 (en) 1982-06-21 1982-06-21 PROCESS FOR PURIFYING PRODUCTS SUCH AS FOODSTUFFS, DEVICE FOR CARRYING OUT THIS PROCESS AND PURIFICATION INSTALLATION COMPRISING THIS DEVICE
FR8210823 1982-06-21

Publications (2)

Publication Number Publication Date
EP0098207A1 EP0098207A1 (en) 1984-01-11
EP0098207B1 true EP0098207B1 (en) 1985-10-23

Family

ID=9275225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830401275 Expired EP0098207B1 (en) 1982-06-21 1983-06-20 Purifying device for products such as foodstuffs, and purifying installation including said device

Country Status (4)

Country Link
EP (1) EP0098207B1 (en)
DE (2) DE98207T1 (en)
ES (1) ES8403751A1 (en)
FR (1) FR2528729B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1364945A (en) * 1918-01-12 1921-01-11 Marion S Maccarthy Separator
US1525181A (en) * 1920-04-26 1925-02-03 Frank Hamachek Machine Company Separating apron for viners
US1543411A (en) * 1925-02-16 1925-06-23 Alvin C Wittig Picking table for pea viners and cleaners and the like
US2682269A (en) * 1950-11-03 1954-06-29 Carroll E Purvis Threshing machine for peas and beans
US3508645A (en) * 1968-08-21 1970-04-28 Reynolds Tobacco Co R Scraper mount for adhesive friction separator
US3507387A (en) * 1969-05-08 1970-04-21 Reynolds Tobacco Co R Process for separating meat from bones
US4258851A (en) * 1979-07-02 1981-03-31 Lion Herbert A Raisin separating machine

Also Published As

Publication number Publication date
DE98207T1 (en) 1984-08-30
ES523472A0 (en) 1984-04-01
EP0098207A1 (en) 1984-01-11
ES8403751A1 (en) 1984-04-01
DE3361064D1 (en) 1985-11-28
FR2528729B1 (en) 1985-08-23
FR2528729A1 (en) 1983-12-23

Similar Documents

Publication Publication Date Title
EP2030514B1 (en) Stalk separator with reciprocating oscillating movements
US3390768A (en) Tomato harvesting apparatus
US4542687A (en) Green peanut destemmer and washer
EP1002467B1 (en) Machine for stemming grapes before making wine
FR2936928A1 (en) METHOD FOR REMOVING PETIOLE FROM A HARVEST FLOW
FR2919461A1 (en) DEVICE FOR SEPARATING AND SYSTEM FOR CLEANING A FLOW HARVESTED BY A FRUIT HARVESTING MACHINE
FR2974705A1 (en) METHOD AND SYSTEM FOR REMOVING WASTE FROM A HARVEST FLOW
FR2919460A1 (en) DEVICE FOR SORTING A CLUSTER FRUIT COLLECTION FLOW AND SEPARATION SYSTEM INTEGRATING IT WITH AN EGG DEVICE
US4355572A (en) Apparatus for separating the pulp from the skin of fruit such as tomatoes
WO2010012936A2 (en) Device for sorting berries, particularly grapes, from plant waste
FR2861952A1 (en) DEVICE AND METHOD FOR DEGRAPPING APPLICABLE TO SENDING MACHINES
US2903134A (en) Cherry sorting machine
FR2859074A1 (en) Grape stalk separator and grape extractor comprises chamber with blades on rotating shaft with lengthwise opening in lower part over conveyor
EP0098207B1 (en) Purifying device for products such as foodstuffs, and purifying installation including said device
EP4152922B1 (en) Device for sorting insects, allowing the separation of crawling insects from the rest of a mixture
FR2590771A1 (en) Method and device for washing vegetables
EP0296931B1 (en) Soil separation for delicate products, such as roof crops, beets and bulbs
US5327819A (en) Peanut blanching process
FR2481617A1 (en) Heavy item sorting equipment - has flexible plates in rows on drum generating air current acting on continuous flow of material
FR2747273A1 (en) Removal of roots, leaves and debris from vegetables and fruit
FR2844212A1 (en) PROCESS AND INSTALLATION FOR AUTOMATIC MORPHOLOGICAL SORTING OF SUBSTANTIALLY SPHERICAL OBJECTS.
US4493851A (en) Method for separating the pulp from the skin of tomatoes
WO2020089806A2 (en) Feeding device, for example for potatoes or other fruits/vegetables, and similar objects
EP1046350A1 (en) Method and device for leaf-stripping of tobacco
FR2622765A1 (en) Method and device for handling mechanically harvested products by eliminating therefrom lightweight waste pulled up during harvesting

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE GB IT LI NL

ITCL It: translation for ep claims filed

Representative=s name: DE DOMINICIS & PARTNERS

TCNL Nl: translation of patent claims filed
17P Request for examination filed

Effective date: 19840412

DET De: translation of patent claims
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

AK Designated contracting states

Designated state(s): BE CH DE GB IT LI NL

REF Corresponds to:

Ref document number: 3361064

Country of ref document: DE

Date of ref document: 19851128

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940622

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000621

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000628

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000629

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000818

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010630

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010630

BERE Be: lapsed

Owner name: S.A. FEMIA INDUSTRIE

Effective date: 20010630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010620

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020101