EP1226872A1 - Device for sorting a mixture of metallic pieces and abrasive particles - Google Patents

Device for sorting a mixture of metallic pieces and abrasive particles Download PDF

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Publication number
EP1226872A1
EP1226872A1 EP02354006A EP02354006A EP1226872A1 EP 1226872 A1 EP1226872 A1 EP 1226872A1 EP 02354006 A EP02354006 A EP 02354006A EP 02354006 A EP02354006 A EP 02354006A EP 1226872 A1 EP1226872 A1 EP 1226872A1
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EP
European Patent Office
Prior art keywords
tube
tank
abrasive particles
sorting device
sorting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP02354006A
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German (de)
French (fr)
Inventor
Josselin Plantier
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.)
Sarl Creafusion
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Sarl Creafusion
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Publication date
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Publication of EP1226872A1 publication Critical patent/EP1226872A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/623—Upward current classifiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
    • B24B31/16—Means for separating the workpiece from the abrasive medium at the end of operation

Definitions

  • the invention relates to a device for sorting a mixture of metal parts and abrasive particles, in particular in the field of jewelry and watchmaking.
  • Sorting of metal parts and abrasive particles is generally carried out mechanically by means of a sieving device which lets the abrasive particles while retaining the metal parts.
  • the dimensional sorting by screening nevertheless has the drawback of letting the parts escape of metallic dimensions approximately identical to the particles abrasive, which requires manual sorting and loss of time.
  • the object of the invention is to develop a sorting device capable of quickly and accurately separate a large mixture of metal parts and abrasive particles, regardless of their size.
  • the first hydraulic pump is connected to the tank through an intake manifold, and has an exhaust manifold connected to an orifice of the main tube, said orifice being separated from the bottom of the tube by a height h1 so as to define a storage volume for the parts metal.
  • the plate is housed in the tank, which is filled with said liquid to a level above the tray.
  • the second hydraulic pump is located in connection with the tank, and with a auxiliary container, which is fitted with a nozzle pipe intended for suction alternately the abrasive particles on the pan, and the metal parts at the bottom of the tube.
  • the nozzle is telescopic or flexible, and is introduced into the tank by an opening located above the tray.
  • the main tube passes through sealing the intermediate wall in a vertical direction.
  • the two pumps are arranged in a second compartment located under the tank (16) with separation by an intermediate wall (14).
  • the adjustment of the liquid flow in the main tube is adjustable by means of a valve inserted in a manifold interconnected bypass between the exhaust manifold of the first pump and the tank.
  • the payment device is connected to the main tube at an intermediate point located between the orifice of connection with the first pump and the particle receiving tray abrasive.
  • a deflector is arranged inside the tube to channel the flow rising of the liquid towards the plate for receiving the abrasive particles, which includes an inclined plane, the low point of which is arranged above a second basket housed in the tank.
  • the first parts recovery basket and the second basket are separated from each other by a partition placed in the tank filled with liquid.
  • the second pump is a pump thrust pipe having a suction pipe in connection with the tank, and a delivery arranged above the first basket.
  • a sorting device 10 of a mixture of parts metallic PM and abrasive particles PA has a casing 12 subdivided by an intermediate wall 14 into a first upper compartment constituting a tank 16 filled with liquid, and a second compartment 18 lower containing two hydraulic pumps 20, 22 and a main tube 24 of recovery of metallic PM parts. Only the tank 16 is sealed and filled with liquid, the second lower compartment 18 serving only as a chassis and housing of the pumps 20, 22.
  • the abrasive particles PA are based on ceramic, plastic, or porcelain, having a lower density than that of metal parts PM, which can be based on gold, silver, brass or steel.
  • the first pump 20 has an intake manifold 25 connected to the first compartment 16 by an orifice 26 formed in the wall 14, and a tube 28 connected to an orifice 30 of the main tube 24.
  • Tubing of bypass 32 interconnected between the exhaust pipe 28 and the tank 16, is equipped with a valve 34 for adjusting the liquid flow rate in the tube 24.
  • the main tube 24 extends vertically in the tank 16, and crosses tightly the intermediate wall 14.
  • a horizontal plate 36 is housed in the tank 16, in being fixed to the outlet orifice 38 of the tube 24.
  • the second pump 22 is connected by an intake manifold 40 to the part bottom of an auxiliary container 42 containing a perforated recovery basket 44 sorted parts and particles.
  • the container 42 further comprises a cover 46 shutter, and an adjustable pipe 48 with a telescopic or flexible end piece 50 allowing suction of metallic PM parts in tube 24 or particles abrasive PA on the plate 36.
  • the tank 16 is open to the part upper, and an exhaust pipe 52 connects the second pump 22 to a orifice 54 of the tank 16.
  • the liquid is preferably water, but any other fluid can be used depending on the type of application.
  • the operation of the sorting device 10 according to the invention is as follows:
  • the two pumps 20, 22 are out of service, and the tank 16 is filled with liquid up to a level N located above the edge of the plate 36.
  • the valve 34 is open, and the auxiliary container 42 is closed by its cover 46. The liquid is thus in a state of rest.
  • the first pump 20 is activated causing the suction of the liquid in the tank 16 through the orifice 26 of the intake manifold 25, and the injection of the liquid into the tube 24 by through the exhaust manifold 28.
  • the adjustment of the liquid flow at the outlet 38 is carried out by adjusting the leakage rate in the manifold bypass 32 by means of valve 34.
  • Sorting can now start after manual pouring of the coin mixture metallic PM and PA abrasive particles in the center of the plate 36, preferably near the center of the orifice 38.
  • the mixture is put in vortex movement by the upward flow of liquid, and parts metallic PM of higher density fall to the bottom of the tube 24, while the abrasive particles PA rise to the surface being entrained by the flow ascending liquid.
  • all metal parts PM is stored at the bottom of the tube 24, and separated from the abrasive particles PA, which are accumulated on the plate 36.
  • the orifice 30 at the point of connection of the exhaust manifold 28 with the tube 24 is separated from the bottom of the tube by a height h1 so as to define a storage volume for PM metal parts.
  • the flow rate of the first pump 20 is a function of the diameter and the length of the tube 24, and the height h of tube 24 between orifice 30 and orifice 38 must be sufficient to ensure optimum sorting.
  • the liquid level is preferably kept above of the plate 36 to slow the liquid flow leaving the tube 24 towards the rim. he is clear that the liquid level could be slightly below the plateau 36.
  • the abrasive particles PA of lower density remain on the plate 36 and do not fall back into the tube 24.
  • the tube 24 has a diameter of the order of 125 mm, and the flow rate of the first pump 20 is between 10 and 17 m 3 / h for a height h of the order of 70 cm.
  • the abrasive particles PA are recovered on the plate 36 before that metal parts PM at the bottom of the tube 24.
  • the second pump 22 is put in service, and the end piece 50 of the orientable pipe 48 is positioned on the plate 36 for sucking the PA abrasive particles.
  • the sucked liquid is rejected in the first compartment 16 by the inlet pipes 40 and exhaust 52, while the abrasive particles PA remain accumulated in basket 44.
  • the first pump 20 continues to discharge the upward flow of liquid to the plate 36 to avoid any fall of the PA abrasive particles in the tube 24.
  • the second pump 22 is stopped, and the cover 46 is removed from the container auxiliary 42 for removing the basket 44 containing the abrasive particles PA. After recovery of the latter, the empty basket 44 is returned to the auxiliary container 42, then the shutter cover 46.
  • the first pump 20 is stopped and the second is started pump 22.
  • the nozzle 50 is introduced into the tube 24 to suck up all the PM metal parts, which are then trapped in the basket 44 of the auxiliary container 42.
  • the liquid sucked in with the metal parts PM is forced back to the first compartment 16 by the inlet pipes 40 and exhaust 52.
  • the second pump 22 is put out of service, and the metal parts PM can be collected in the auxiliary container 42 after removal of the cover 46.
  • the two pumps 120, 122 are each equipped with an electronic variator of speed.
  • the mixture of abrasive particles PA and metallic parts PM is poured in the pouring device DV, and arrives in the main tube 124 at the point 115.
  • the abrasive particles PA go up towards the plate 136, and the parts metallic PM fall to the bottom of the main tube 124 by gravity.
  • the speed of the water in the tube of the DV pouring device is zero, which allows the mixture to descend to point 115 of the main tube 124.
  • a deflector 121 is arranged inside the tube 124 in the vicinity of the orifice 130 to channel the upward flow of liquid to the tray 136, and avoid any effect of turbulence in the bottom of the main tube 124 ..
  • the abrasive particles PA rise towards the the plate 136 with inclined plane, and fall into the basket 144B with recovery of the water in the tank 116.
  • the latter serves as a water reservoir for the two pumps 120, 122 which operate in closed circuit.
  • the PM metal parts fall to the bottom of the main tube 124, and arrive in the discharge pipe 152 of the thrust pump 122. The parts then fall on the basket 144A, and the water is collected in the tank 116.
  • the first basket 144A for recovering PM metal parts and the second basket 144B are separated from each other by a partition 119 arranged in the tank 116 filled with liquid.
  • the sorting devices according to FIGS. 1 to 7 make it possible to obtain a separation efficient metal parts PM and abrasive particles PA without doing use of sieves, and regardless of their dimensions. A 10 liter mixture can thus be treated in a few minutes.
  • the applications are diverse: jewelry, watches, leather goods, and others mechanical fields.

Abstract

The separator consists of an intake (DV) to take a mixture of small metal components and abrasive particles into a main vetical separating pipe (124) with a pump (120) to create a rising flow of liquid in the pipe. The lighter abrasive particles rise with the flow to be collected by a plate (136), while the heavier metal components fall to the bottom of the pipe by gravity, and are recovered by a liquid flow from a second pump (122) and are trapped in a basket (144A) inside a reservoir (116) that replenishes the liquid.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention est relative à un dispositif de triage d'un mélange de pièces métalliques et de particules abrasives, notamment dans le domaine de la bijouterie et de l'horlogerie.The invention relates to a device for sorting a mixture of metal parts and abrasive particles, in particular in the field of jewelry and watchmaking.

Etat de la techniqueState of the art

Le tri des pièces métalliques et des particules abrasives s'effectue généralement par voie mécanique au moyen d'un dispositif de tamisage qui laisse passer les particules abrasives tout en retenant les pièces métalliques. Le tri dimensionnel par tamisage présente néanmoins l'inconvénient de laisser échapper les pièces métalliques de dimensions approximativement identiques aux particules abrasives, ce qui oblige un triage manuel et une perte de temps.Sorting of metal parts and abrasive particles is generally carried out mechanically by means of a sieving device which lets the abrasive particles while retaining the metal parts. The dimensional sorting by screening nevertheless has the drawback of letting the parts escape of metallic dimensions approximately identical to the particles abrasive, which requires manual sorting and loss of time.

Objet de l'inventionSubject of the invention

L'objet de l'invention consiste à élaborer un dispositif de triage susceptible de séparer rapidement et avec précision un mélange important de pièces métalliques et de particules abrasives, indépendamment de leurs dimensions. The object of the invention is to develop a sorting device capable of quickly and accurately separate a large mixture of metal parts and abrasive particles, regardless of their size.

Le dispositif selon l'invention est caractérisé en ce que ce qu'il comporte :

  • un dispositif de versement du mélange dans un tube de triage prinçipal disposé verticalement,
  • une première pompe hydraulique destinée à envoyer un flux ascendant de liquide dans le tube de triage pour assurer la séparation des particules abrasives qui remontent dans le sens du courant ascendant, et des pièces métalliques qui tombent par gravité au fond du tube de triage, les particules abrasives ayant un poids volumique inférieur à celui des pièces métalliques,
  • un plateau à la partie supérieure du tube de triage pour la réception des particules abrasives,
  • une deuxième pompe hydraulique pour la récupération des pièces métalliques dans un premier panier,
  • et une cuve en liaison hydraulique avec les deux pompes.
The device according to the invention is characterized in that what it comprises:
  • a device for pouring the mixture into a vertically arranged main sorting tube,
  • a first hydraulic pump intended to send an ascending flow of liquid in the sorting tube to ensure the separation of the abrasive particles which go up in the upward direction, and the metallic parts which fall by gravity to the bottom of the sorting tube, the particles abrasives having a density lower than that of metallic parts,
  • a tray at the top of the sorting tube for receiving abrasive particles,
  • a second hydraulic pump for the recovery of metal parts in a first basket,
  • and a tank in hydraulic connection with the two pumps.

Selon une caractéristique de l'invention, la première pompe hydraulique est reliée à la cuve par une tubulure d'admission, et est dotée d'une tubulure d'échappement branchée à un orifice du tube principal, ledit orifice étant séparé du fond du tube par une hauteur h1 de manière à délimiter un volume de stockage des pièces métalliques.According to a characteristic of the invention, the first hydraulic pump is connected to the tank through an intake manifold, and has an exhaust manifold connected to an orifice of the main tube, said orifice being separated from the bottom of the tube by a height h1 so as to define a storage volume for the parts metal.

Selon un premier mode de réalisation de l'invention, le plateau est logé dans la cuve, laquelle est remplie par ledit liquide jusqu'à un niveau situé au-dessus du plateau. La deuxième pompe hydraulique se trouve en liaison la cuve, et avec un récipient auxiliaire, lequel est équipé d'une canalisation à embout destiné à aspirer alternativement les particules abrasives sur le plateau, et les pièces métalliques au fond du tube. L'embout est télescopique ou flexible, et est introduit dans la cuve par une ouverture située au-dessus du plateau. Le tube principal traverse à étanchéité la paroi intermédiaire selon une direction verticale. Les deux pompes sont disposées dans un deuxième compartiment situé sous la cuve (16) avec séparation par une paroi (14) intermédiaire. Le réglage du débit de liquide dans le tube principal est réglable au moyen d'une vanne insérée dans une tubulure de dérivation interconnectée entre la tubulure d'échappement de la première pompe et la cuve.According to a first embodiment of the invention, the plate is housed in the tank, which is filled with said liquid to a level above the tray. The second hydraulic pump is located in connection with the tank, and with a auxiliary container, which is fitted with a nozzle pipe intended for suction alternately the abrasive particles on the pan, and the metal parts at the bottom of the tube. The nozzle is telescopic or flexible, and is introduced into the tank by an opening located above the tray. The main tube passes through sealing the intermediate wall in a vertical direction. The two pumps are arranged in a second compartment located under the tank (16) with separation by an intermediate wall (14). The adjustment of the liquid flow in the main tube is adjustable by means of a valve inserted in a manifold interconnected bypass between the exhaust manifold of the first pump and the tank.

Selon un deuxième mode de réalisation de l'invention, le dispositif de versement est relié au tube prinçipal en un point intermédiaire situé entre l'orifice de raccordement avec la première pompe, et le plateau de réception des particules abrasives. Un déflecteur est agencé à l'intérieur du tube pour canaliser le flux ascendant du liquide vers le plateau de réception des particules abrasives, lequel comprend un plan incliné, dont le point bas est disposé au-dessus d'un deuxième panier logé dans la cuve. Le premier panier de récupération des pièces métalliques et le deuxième panier sont séparés l'un de l'autre par une cloison disposée dans la cuve remplie de liquide. La deuxième pompe est une pompe de poussée ayant un tuyau d'aspiration en liaison avec la cuve, et un tuyau de refoulement agencé au-dessus du premier panier.According to a second embodiment of the invention, the payment device is connected to the main tube at an intermediate point located between the orifice of connection with the first pump and the particle receiving tray abrasive. A deflector is arranged inside the tube to channel the flow rising of the liquid towards the plate for receiving the abrasive particles, which includes an inclined plane, the low point of which is arranged above a second basket housed in the tank. The first parts recovery basket and the second basket are separated from each other by a partition placed in the tank filled with liquid. The second pump is a pump thrust pipe having a suction pipe in connection with the tank, and a delivery arranged above the first basket.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de réalisation de l'invention donné à titre d'exemple non limitatif, et représenté aux dessins annexés, dans lesquels:

  • la figure 1 est une vue schématique du dispositif de triage selon l'invention, pendant la phase de séparation du mélange de pièces métalliques et de particules abrasives dans le tube hydraulique;
  • les figures 2 et 3 montrent des vues identiques de la figure 1, respectivement lors de la récupération des particules abrasives, et des pièces métalliques ;
  • les figures 4 à 7 représentent les différentes phases de fonctionnement d'une variante de réalisation. Dans la figure 4, la machine est à l'état de repos sans eau dans la cuve. Dans la figure 5, la machine est mise en eau, mais les pompes ne fonctionnent pas. Dans la figure 6, les pompes de la machine sont en marche. La figure 7 montre la machine en phase de triage.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention given by way of nonlimiting example, and represented in the appended drawings, in which:
  • Figure 1 is a schematic view of the sorting device according to the invention, during the phase of separation of the mixture of metal parts and abrasive particles in the hydraulic tube;
  • Figures 2 and 3 show identical views of Figure 1, respectively during the recovery of abrasive particles, and metal parts;
  • Figures 4 to 7 show the different operating phases of an alternative embodiment. In Figure 4, the machine is in the idle state without water in the tank. In Figure 5, the machine is put in water, but the pumps do not work. In Figure 6, the machine pumps are running. Figure 7 shows the machine in the sorting phase.

Description d'un mode de réalisation préférentiel.Description of a preferred embodiment.

En référence aux figures 1 à 3, un dispositif de triage 10 d'un mélange de pièces métalliques PM et de particules abrasives PA, comporte une enveloppe 12 subdivisée par une paroi 14 intermédiaire en un premier compartiment supérieur constituant une cuve 16 remplie de liquide, et un deuxième compartiment 18 inférieur renfermant deux pompes 20, 22 hydrauliques et un tube 24 principal de récupération des pièces métalliques PM. Seul la cuve 16 est étanche et remplie de liquide, le deuxième compartiment 18 inférieur servant uniquement de châssis et de logement des pompes 20, 22.Referring to Figures 1 to 3, a sorting device 10 of a mixture of parts metallic PM and abrasive particles PA, has a casing 12 subdivided by an intermediate wall 14 into a first upper compartment constituting a tank 16 filled with liquid, and a second compartment 18 lower containing two hydraulic pumps 20, 22 and a main tube 24 of recovery of metallic PM parts. Only the tank 16 is sealed and filled with liquid, the second lower compartment 18 serving only as a chassis and housing of the pumps 20, 22.

Les particules abrasives PA sont à base de céramique, de plastique, ou de porcelaine, présentant un poids volumique inférieur à celui des pièces métalliques PM, lesquelles peuvent être à base d'or, d'argent, de laiton ou d'acier.The abrasive particles PA are based on ceramic, plastic, or porcelain, having a lower density than that of metal parts PM, which can be based on gold, silver, brass or steel.

La première pompe 20 est dotée d'une tubulure d'admission 25 reliée au premier compartiment 16 par un orifice 26 ménagé dans la paroi 14, et d'une tubulure d'échappement 28 branchée à un orifice 30 du tube 24 principal. Une tubulure de dérivation 32 interconnectée entre la tubulure d'échappement 28 et la cuve 16, est équipée d'une vanne 34 permettant de régler le débit de liquide dans le tube 24.The first pump 20 has an intake manifold 25 connected to the first compartment 16 by an orifice 26 formed in the wall 14, and a tube 28 connected to an orifice 30 of the main tube 24. Tubing of bypass 32 interconnected between the exhaust pipe 28 and the tank 16, is equipped with a valve 34 for adjusting the liquid flow rate in the tube 24.

Le tube 24 principal s'étend verticalement dans la cuve 16, et traverse à étanchéité la paroi 14 intermédiaire. Un plateau 36 horizontal est logé dans la cuve 16, en étant fixé à l'orifice de sortie 38 du tube 24.The main tube 24 extends vertically in the tank 16, and crosses tightly the intermediate wall 14. A horizontal plate 36 is housed in the tank 16, in being fixed to the outlet orifice 38 of the tube 24.

La deuxième pompe 22 est branchée par une tubulure d'admission 40 à la partie inférieure d'un récipient auxiliaire 42 renfermant un panier 44 perforé de récupération des pièces et particules triées. Le récipient 42 comprend en plus un couvercle 46 d'obturation, et une canalisation 48 orientable à embout 50 téléscopique ou flexible permettant d'aspirer les pièces métalliques PM dans le tube 24 ou les particules abrasives PA sur le plateau 36. A cet effet, la cuve 16 est ouverte à la partie supérieure, et une tubulure d'échappement 52 relie la deuxième pompe 22 à un orifice 54 de la cuve 16. The second pump 22 is connected by an intake manifold 40 to the part bottom of an auxiliary container 42 containing a perforated recovery basket 44 sorted parts and particles. The container 42 further comprises a cover 46 shutter, and an adjustable pipe 48 with a telescopic or flexible end piece 50 allowing suction of metallic PM parts in tube 24 or particles abrasive PA on the plate 36. To this end, the tank 16 is open to the part upper, and an exhaust pipe 52 connects the second pump 22 to a orifice 54 of the tank 16.

Le liquide est préférentiellement de l'eau, mais tout autre fluide peut être utilisé selon le type d'application.The liquid is preferably water, but any other fluid can be used depending on the type of application.

Le fonctionnement du dispositif de triage 10 selon l'invention est le suivant :The operation of the sorting device 10 according to the invention is as follows:

A l'arrêt, les deux pompes 20, 22 sont hors service, et la cuve 16 est remplie de liquide jusqu'à un niveau N situé au-dessus du rebord du plateau 36. La vanne 34 est ouverte, et le récipient auxiliaire 42 est obturé par son couvercle 46. Le liquide se trouve ainsi à l'état de repos.When stopped, the two pumps 20, 22 are out of service, and the tank 16 is filled with liquid up to a level N located above the edge of the plate 36. The valve 34 is open, and the auxiliary container 42 is closed by its cover 46. The liquid is thus in a state of rest.

Pour opérer la mise en service du dispositif de triage 10, la première pompe 20 est activée provoquant l'aspiration du liquide dans la cuve 16 à travers l'orifice 26 de la tubulure d'admission 25, et l'injection du liquide dans le tube 24 par l'intermédiaire de la tubulure d'échappement 28. Le réglage du débit de liquide à la sortie de l'orifice 38 s'effectue en ajustant le débit de fuite dans la tubulure de dérivation 32 au moyen de la vanne 34.To operate the sorting device 10, the first pump 20 is activated causing the suction of the liquid in the tank 16 through the orifice 26 of the intake manifold 25, and the injection of the liquid into the tube 24 by through the exhaust manifold 28. The adjustment of the liquid flow at the outlet 38 is carried out by adjusting the leakage rate in the manifold bypass 32 by means of valve 34.

Le tri peut maintenant démarrer après versement manuel du mélange de pièces métalliques PM et de particules abrasives PA au centre du plateau 36, de préférence au voisinage du centre de l'orifice 38. Le mélange est mis en mouvement tourbillonnaire par le flux ascendant de liquide, et les pièces métalliques PM de densité supérieure tombent au fond du tube 24, tandis que les particules abrasives PA remontent à la surface en étant entraínées par le flux ascendant du liquide. Au bout d'un temps de pompage prédéterminé, la totalité des pièces métalliques PM est stockée au fond du tube 24, et séparée des particules abrasives PA, lesquelles sont accumulées sur le plateau 36. L'orifice 30 au point de liaison de la tubulure d'échappement 28 avec le tube 24 est séparé du fond du tube par une hauteur h1 de manière à définir un volume de stockage des pièces métalliques PM.Sorting can now start after manual pouring of the coin mixture metallic PM and PA abrasive particles in the center of the plate 36, preferably near the center of the orifice 38. The mixture is put in vortex movement by the upward flow of liquid, and parts metallic PM of higher density fall to the bottom of the tube 24, while the abrasive particles PA rise to the surface being entrained by the flow ascending liquid. After a predetermined pumping time, all metal parts PM is stored at the bottom of the tube 24, and separated from the abrasive particles PA, which are accumulated on the plate 36. The orifice 30 at the point of connection of the exhaust manifold 28 with the tube 24 is separated from the bottom of the tube by a height h1 so as to define a storage volume for PM metal parts.

Le débit de la première pompe 20 est fonction du diamètre et de la longueur du tube 24, et la hauteur h du tube 24 entre l'orifice 30 et l'orifice 38 doit être suffisante pour assurer un tri optimum. Le niveau du liquide est maintenu de préférence au-dessus du plateau 36 pour ralentir le flux liquide sortant du tube 24 vers le rebord. Il est clair que le niveau du liquide pourrait être légèrement en-dessous du plateau 36.The flow rate of the first pump 20 is a function of the diameter and the length of the tube 24, and the height h of tube 24 between orifice 30 and orifice 38 must be sufficient to ensure optimum sorting. The liquid level is preferably kept above of the plate 36 to slow the liquid flow leaving the tube 24 towards the rim. he is clear that the liquid level could be slightly below the plateau 36.

Il en résulte que les particules abrasives PA de densité inférieure restent sur le plateau 36 et ne retombent pas dans le tube 24.As a result, the abrasive particles PA of lower density remain on the plate 36 and do not fall back into the tube 24.

A titre d'exemple, le tube 24 possède un diamètre de l'ordre de 125mm, et le débit de la première pompe 20 se situe entre 10 et 17 m3/h pour une hauteur h de l'ordre de 70 cm.By way of example, the tube 24 has a diameter of the order of 125 mm, and the flow rate of the first pump 20 is between 10 and 17 m 3 / h for a height h of the order of 70 cm.

La récupération des particules abrasives PA sur le plateau 36 s'effectue avant celle des pièces métalliques PM au fond du tube 24. La deuxième pompe 22 est mise en service, et on positionne l'embout 50 de la canalisation 48 orientable sur le plateau 36 pour aspirer les particules abrasives PA. Le liquide aspiré est rejeté dans le premier compartiment 16 par les tubulures d'admission 40 et d'échappement 52, tandis que les particules abrasives PA restent accumulées dans le panier 44. Durant cette première phase de récupération, la première pompe 20 continue de refouler le flux ascendant de liquide vers le plateau 36 pour éviter toute retombée des particules abrasives PA dans le tube 24.The abrasive particles PA are recovered on the plate 36 before that metal parts PM at the bottom of the tube 24. The second pump 22 is put in service, and the end piece 50 of the orientable pipe 48 is positioned on the plate 36 for sucking the PA abrasive particles. The sucked liquid is rejected in the first compartment 16 by the inlet pipes 40 and exhaust 52, while the abrasive particles PA remain accumulated in basket 44. During this first recovery phase, the first pump 20 continues to discharge the upward flow of liquid to the plate 36 to avoid any fall of the PA abrasive particles in the tube 24.

La deuxième pompe 22 est arrêtée, et on enlève le couvercle 46 du récipient auxiliaire 42 pour sortir le panier 44 contenant les particules abrasives PA. Après récupération de ces dernières, on remet le panier 44 vide dans le récipient auxiliaire 42, puis le couvercle 46 d'obturation.The second pump 22 is stopped, and the cover 46 is removed from the container auxiliary 42 for removing the basket 44 containing the abrasive particles PA. After recovery of the latter, the empty basket 44 is returned to the auxiliary container 42, then the shutter cover 46.

Pour la deuxième phase de récupération des pièces métalliques PM stockées au fond du tube 24, on arrête la première pompe 20 et on enclenche la deuxième pompe 22. L'embout 50 est introduit dans le tube 24 pour aspirer toutes les pièces métalliques PM, lesquelles se retrouvent ensuite prisonnières dans le panier 44 du récipient auxiliaire 42. Le liquide aspiré avec les pièces métalliques PM est refoulé vers le premier compartiment 16 par les tubulures d'admission 40 et d'échappement 52.For the second phase of recovery of PM metal parts stored at bottom of the tube 24, the first pump 20 is stopped and the second is started pump 22. The nozzle 50 is introduced into the tube 24 to suck up all the PM metal parts, which are then trapped in the basket 44 of the auxiliary container 42. The liquid sucked in with the metal parts PM is forced back to the first compartment 16 by the inlet pipes 40 and exhaust 52.

La deuxième pompe 22 est mise hors service, et les pièces métalliques PM peuvent être récupérées dans le récipient auxiliaire 42 après enlèvement du couvercle 46.The second pump 22 is put out of service, and the metal parts PM can be collected in the auxiliary container 42 after removal of the cover 46.

En fin d'opération de récupération des pièces métalliques PM, on remonte l'ensemble et on ouvre la vanne 34.At the end of the PM metal parts recovery operation, we go back up the assembly and the valve 34 is opened.

En référence aux figures 4 à 7, le dispositif de triage comporte :

  • un dispositif de versement DV du mélange, pourvu d'un récipient de forme conique prolongé par un tube qui rejoint le tube principal 124 en un point 115 situé entre l'orifice 130 de raccordement avec la première pompe 120, et le plateau 136 de réception des particules abrasives PA.
  • un système de récupération des particules abrasives PA composé d'un plateau 136 à plan incliné dont le point bas est disposé au-dessus d'un deuxième panier 144B logé dans la cuve 116.
  • et un système de récupération des pièces métalliques PM, comprenant le tube principal de triage 124, la deuxième pompe 122 de poussée et une grille de récupération des pièces PM contenues dans un panier 144A.
With reference to FIGS. 4 to 7, the sorting device comprises:
  • a device for pouring the mixture DV, provided with a conical container extended by a tube which joins the main tube 124 at a point 115 situated between the orifice 130 for connection with the first pump 120, and the receiving plate 136 abrasive particles PA.
  • a system for recovering abrasive particles PA composed of a plate 136 with an inclined plane, the low point of which is disposed above a second basket 144B housed in the tank 116.
  • and a PM metal parts recovery system, comprising the main sorting tube 124, the second thrust pump 122 and a PM parts recovery grid contained in a basket 144A.

Les deux pompes 120, 122 sont équipées chacune d'un variateur électronique de vitesse.The two pumps 120, 122 are each equipped with an electronic variator of speed.

Le fonctionnement du dispositif des figures 4 à 7 est le suivant :The operation of the device in FIGS. 4 to 7 is as follows:

Le mélange des particules abrasives PA et des pièces métalliques PM est versé dans le dispositif de versement DV, et arrive dans le tube principal 124 au point 115. Les particules abrasives PA remontent vers le plateau 136, et les pièces métalliques PM tombent au fond du tube principal 124 par gravité. The mixture of abrasive particles PA and metallic parts PM is poured in the pouring device DV, and arrives in the main tube 124 at the point 115. The abrasive particles PA go up towards the plate 136, and the parts metallic PM fall to the bottom of the main tube 124 by gravity.

La vitesse de l'eau dans le tube du dispositif de versement DV est nul, ce qui permet la descente du mélange vers le point 115 du tube principal 124. Un déflecteur 121 est agencé à l'intérieur du tube 124 au voisinage de l'orifice 130 pour canaliser le flux ascendant du liquide vers le plateau 136, et éviter tout effet de turbulence dans le fond du tube prinçipal 124..The speed of the water in the tube of the DV pouring device is zero, which allows the mixture to descend to point 115 of the main tube 124. A deflector 121 is arranged inside the tube 124 in the vicinity of the orifice 130 to channel the upward flow of liquid to the tray 136, and avoid any effect of turbulence in the bottom of the main tube 124 ..

Durant la phase de triage (figure 7), les particules abrasives PA remontent vers le le plateau 136 à plan incliné, et tombent dans le panier 144B avec récupération de l'eau dans la cuve 116. Ce dernier sert de réservoir d'eau pour les deux pompes 120, 122 qui fonctionnent en circuit fermé.During the sorting phase (Figure 7), the abrasive particles PA rise towards the the plate 136 with inclined plane, and fall into the basket 144B with recovery of the water in the tank 116. The latter serves as a water reservoir for the two pumps 120, 122 which operate in closed circuit.

Les pièces métalliques PM tombent au fond du tube principal 124, et arrivent dans la canalisation de refoulement 152 de la pompe de poussée 122. Les pièces tombent ensuite sur le panier 144A, et l'eau est récupérée dans la cuve 116.The PM metal parts fall to the bottom of the main tube 124, and arrive in the discharge pipe 152 of the thrust pump 122. The parts then fall on the basket 144A, and the water is collected in the tank 116.

Le premier panier 144A de récupération des pièces métalliques PM et le deuxième panier 144B sont séparés l'un de l'autre par une cloison 119 disposée dans la cuve 116 remplie de liquide.The first basket 144A for recovering PM metal parts and the second basket 144B are separated from each other by a partition 119 arranged in the tank 116 filled with liquid.

Les dispositifs de triage selon les figures 1 à 7 permettent d'obtenir une séparation efficace des pièces métalliques PM et des particules abrasives PA sans faire usage de tamis, et indépendamment des dimensions de ces dernières. Un mélange de 10 litres peut ainsi être traité en quelques minutes.The sorting devices according to FIGS. 1 to 7 make it possible to obtain a separation efficient metal parts PM and abrasive particles PA without doing use of sieves, and regardless of their dimensions. A 10 liter mixture can thus be treated in a few minutes.

Les applications sont diverses: bijouterie, horlogerie, maroquinerie, et autres domaines de la mécanique.The applications are diverse: jewelry, watches, leather goods, and others mechanical fields.

Claims (13)

Dispositif de triage d'un mélange de pièces métalliques (PM) de précision et de particules abrasives (PA),
caractérisé en ce qu'il comporte : un dispositif de versement (DV) du mélange dans un tube (24, 124) de triage prinçipal disposé verticalement, une première pompe (20, 120) hydraulique destinée à envoyer un flux ascendant de liquide dans le tube de triage (24, 124) pour assurer la séparation des particules abrasives (PA) qui remontent dans le sens du courant ascendant, et des pièces métalliques (PM) qui tombent par gravité au fond du tube de triage, les particules abrasives (PA) ayant un poids volumique inférieur à celui des pièces métalliques (PM), un plateau (36, 136) à la partie supérieure du tube de triage pour la réception des particules abrasives (PA), une deuxième pompe (22, 122) hydraulique pour la récupération des pièces métalliques (PM) dans un premier panier (44, 144A), et une cuve (16, 116) en liaison hydraulique avec les deux pompes (20, 120 ; 22, 122). Sorting device for a mixture of precision metal parts (PM) and abrasive particles (PA),
characterized in that it comprises: a pouring device (DV) for the mixture into a vertically arranged main sorting tube (24, 124), a first hydraulic pump (20, 120) intended to send an upward flow of liquid in the sorting tube (24, 124) to ensure the separation of the abrasive particles (PA) which rise in the upward direction, and the metallic parts (PM) which fall by gravity to the bottom of the sorting tube, the abrasive particles (PA) having a density lower than that of metal parts (PM), a plate (36, 136) at the top of the sorting tube for receiving the abrasive particles (PA), a second hydraulic pump (22, 122) for recovering metallic parts (PM) in a first basket (44, 144A), and a tank (16, 116) in hydraulic connection with the two pumps (20, 120; 22, 122). Dispositif de triage selon la revendication 1, caractérisé en ce que la première pompe (20, 120) hydraulique est reliée à la cuve (16, 116) par une tubulure d'admission (25, 125), et est dotée d'une tubulure d'échappement (28,128) branchée à un orifice (30, 130) du tube (24, 124) principal, ledit orifice (30, 130) étant séparé du fond du tube (24, 124) par une hauteur (h1) de manière à délimiter un volume de stockage des pièces métalliques (PM). Sorting device according to claim 1, characterized in that the first hydraulic pump (20, 120) is connected to the tank (16, 116) by an intake manifold (25, 125), and is provided with a manifold exhaust (28,128) connected to an orifice (30, 130) of the main tube (24, 124), said orifice (30, 130) being separated from the bottom of the tube (24, 124) by a height (h1) so to define a storage volume for metal parts (PM). Dispositif de triage selon la revendication 1 ou 2, caractérisé en ce que le plateau (36) est logé dans la cuve (16), laquelle est remplie par ledit liquide jusqu'à un niveau situé au-dessus du plateau (36).Sorting device according to claim 1 or 2, characterized in that the tray (36) is housed in the tank (16), which is filled with said liquid to a level located above the tray (36). Dispositif de triage selon l'une des revendications 1 à 3, caractérisé en ce que la deuxième pompe (22) hydraulique se trouve en liaison la cuve (16), et avec un récipient auxiliaire (42), lequel est équipé d'une canalisation (48) à embout (50) destiné à aspirer alternativement les particules abrasives (PA) sur le plateau (36), et les pièces métalliques (PM) au fond du tube (24).Sorting device according to one of claims 1 to 3, characterized in that the second hydraulic pump (22) is located in connection with the tank (16), and with an auxiliary container (42), which is equipped with a pipe (48) with nozzle (50) intended to suck alternately the abrasive particles (PA) on the plate (36), and the metal parts (PM) at the bottom of the tube (24). Dispositif de triage selon la revendication 4, caractérisé en ce que l'embout (50) est télescopique ou flexible, et est introduit dans la cuve (16) par une ouverture située au-dessus du plateau (36).Sorting device according to claim 4, characterized in that the end piece (50) is telescopic or flexible, and is introduced into the tank (16) through an opening located above the plate (36). Dispositif de triage selon la revendication 4, caractérisé en ce que les deux pompes (20, 22) sont disposées dans un deuxième compartiment (18) situé sous la cuve (16) avec séparation par une paroi (14) intermédiaire (14).Sorting device according to claim 4, characterized in that the two pumps (20, 22) are arranged in a second compartment (18) located under the tank (16) with separation by an intermediate wall (14) (14). Dispositif de triage selon la revendication 6, caractérisé en ce que le tube (24) principal traverse à étanchéité la paroi (14) intermédiaire selon une direction verticale, l'orifice (30) de la tubulure d'échappement (28) de la première pompe (20) étant séparé du plateau (36) par une hauteur (h) prédéterminée.Sorting device according to claim 6, characterized in that the main tube (24) sealingly passes through the intermediate wall (14) in a vertical direction, the orifice (30) of the exhaust pipe (28) of the first pump (20) being separated from the plate (36) by a predetermined height (h). Dispositif de triage selon la revendication 7, caractérisé en ce qu'une tubulure de dérivation (32) est interconnectée entre la tubulure d'échappement (28) de la première pompe (20) et la cuve (16), et est équipée d'une vanne (34) pour le réglage du débit de liquide dans le tube principal (24). Sorting device according to claim 7, characterized in that a bypass pipe (32) is interconnected between the exhaust pipe (28) of the first pump (20) and the tank (16), and is equipped with a valve (34) for adjusting the flow rate of liquid in the main tube (24). Dispositif de triage selon la revendication 1 ou 2, caractérisé en ce que le dispositif de versement (DV) est relié au tube prinçipal (124) en un point (115) situé entre l'orifice (130) de raccordement avec la première pompe (120), et le plateau (136) de réception des particules abrasives (PA).Sorting device according to claim 1 or 2, characterized in that the pouring device (DV) is connected to the main tube (124) at a point (115) located between the orifice (130) for connection with the first pump ( 120), and the plate (136) for receiving the abrasive particles (PA). Dispositif de triage selon la revendication 9, caractérisé en ce que le plateau (136) de réception des particules abrasives (PA) comprend un plan incliné, dont le point bas est disposé au-dessus d'un deuxième panier (144B) logé dans la cuve (116).Sorting device according to claim 9, characterized in that the plate (136) for receiving the abrasive particles (PA) comprises an inclined plane, the low point of which is arranged above a second basket (144B) housed in the tank (116). Dispositif de triage selon la revendication 10, caractérisé en ce que le premier panier (144A) de récupération des pièces métalliques (PM) et le deuxième panier (144B) sont séparés l'un de l'autre par une cloison (119) disposée dans la cuve (116) remplie de liquide.Sorting device according to claim 10, characterized in that the first basket (144A) for recovering metal parts (PM) and the second basket (144B) are separated from each other by a partition (119) arranged in the tank (116) filled with liquid. Dispositif de triage selon la revendication 11, caractérisé en ce que la deuxième pompe (122) est une pompe de poussée ayant un tuyau d'aspiration (140) en liaison avec la cuve (116), et un tuyau de refoulement (152) agencé au-dessus du premier panier (144A).Sorting device according to claim 11, characterized in that the second pump (122) is a thrust pump having a suction pipe (140) connected to the tank (116), and a discharge pipe (152) arranged above the first basket (144A). Dispositif de triage selon l'une des revendications 9 à 12, caractérisé en ce qu'un déflecteur (121) est agencé à l'intérieur du tube (124) au voisinage de l'orifice (130) pour canaliser le flux ascendant du liquide vers le plateau (136).Sorting device according to one of claims 9 to 12, characterized in that a deflector (121) is arranged inside the tube (124) in the vicinity of the orifice (130) to channel the upward flow of the liquid towards the plate (136).
EP02354006A 2001-01-25 2002-01-17 Device for sorting a mixture of metallic pieces and abrasive particles Withdrawn EP1226872A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0101022A FR2819738B1 (en) 2001-01-25 2001-01-25 SORTING DEVICE FOR A MIXTURE OF METAL PARTS AND ABRASIVE PARTICLES
FR0101022 2001-01-25

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EP1226872A1 true EP1226872A1 (en) 2002-07-31

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EP (1) EP1226872A1 (en)
FR (1) FR2819738B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108686826A (en) * 2018-04-28 2018-10-23 中电建水环境治理技术有限公司 A kind of rubbish waterpower screening installation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301608A1 (en) * 1987-07-25 1989-02-01 Metallgesellschaft Ag Method of separating workpieces and treating bodies
US4913807A (en) * 1988-10-26 1990-04-03 The United States Of America As Represented By The United States Department Of Energy Particle separator
EP0611275A1 (en) * 1993-02-12 1994-08-17 JOHANN TAUSS GESELLSCHAFT m.b.H. Process and apparatus for separating small workpieces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301608A1 (en) * 1987-07-25 1989-02-01 Metallgesellschaft Ag Method of separating workpieces and treating bodies
US4913807A (en) * 1988-10-26 1990-04-03 The United States Of America As Represented By The United States Department Of Energy Particle separator
EP0611275A1 (en) * 1993-02-12 1994-08-17 JOHANN TAUSS GESELLSCHAFT m.b.H. Process and apparatus for separating small workpieces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108686826A (en) * 2018-04-28 2018-10-23 中电建水环境治理技术有限公司 A kind of rubbish waterpower screening installation

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Publication number Publication date
FR2819738B1 (en) 2003-04-11
FR2819738A1 (en) 2002-07-26

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