EP0581673B1 - Product from amagnetic material, method and installation for reclaiming products of this type - Google Patents

Product from amagnetic material, method and installation for reclaiming products of this type Download PDF

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Publication number
EP0581673B1
EP0581673B1 EP93401953A EP93401953A EP0581673B1 EP 0581673 B1 EP0581673 B1 EP 0581673B1 EP 93401953 A EP93401953 A EP 93401953A EP 93401953 A EP93401953 A EP 93401953A EP 0581673 B1 EP0581673 B1 EP 0581673B1
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EP
European Patent Office
Prior art keywords
products
product
ferromagnetic
identification
ferromagnetic element
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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 - Lifetime
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EP93401953A
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German (de)
French (fr)
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EP0581673A1 (en
Inventor
André Leplomb
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Sollac SA
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Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3412—Sorting according to other particular properties according to a code applied to the object which indicates a property of the object, e.g. quality class, contents or incorrect indication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
    • B07C2501/0036—Sorting out metallic particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
    • B07C2501/0054—Sorting of waste or refuse

Definitions

  • the present invention relates to products made of non-magnetic material such as bottles or containers according to the preamble of claim 1 and also relates to a method and an installation for recovering this type of product according to the preamble of claim 8 and 12, respectively. (see DE-A-3810088).
  • PVC polyvinyl chloride
  • the recovery system is inspired by that organized by the glassmakers.
  • the collection problem is not the only one to be solved, unlike other materials, because plastics cannot be mixed.
  • plastic processors do not have this facility, the primary qualities of polymers fading as the treatments progress.
  • the object of the present invention is to respond to the problem of recovering products made of non-magnetic material of the type bottles or other containers of very high consumption in plastic material, by using the metal recovery sector which today is operational.
  • the present invention therefore relates to a product made of non-magnetic material comprising at least one ferromagnetic element for specific marking of the product and / or of the material constituting the product, said ferromagnetic element allowing the recovery, using an electromagnet, of said product contained in discharges, characterized in that the ferromagnetic element is placed below a product identification body.
  • Fig. 1 there is shown schematically a bottle 1 of non-magnetic material and in particular of plastic material carrying an identification member such as for example a label 2 under which is placed at least one ferromagnetic element 3 of specific marking.
  • an identification member such as for example a label 2 under which is placed at least one ferromagnetic element 3 of specific marking.
  • the ferromagnetic element 3 is for example placed in a housing 4 produced during the shaping of the bottle 1, as shown in FIG. 2.
  • This ferromagnetic element 3 is flush with the exterior surface of the bottle 1 and the label 2 is supported on the exterior surface of said element 3 and on the exterior surface of said bottle.
  • the ferromagnetic element 3 can be inserted directly into the material at the time of molding of the bottle 1 or fixed, for example, by bonding to the exterior surface of this bottle.
  • the ferromagnetic element 3 is fixed by pinching on a rounded part of the product 1.
  • the ferromagnetic element 3 has a modulus of elasticity greater than or equal to 180,000 MPa.
  • the thickness of this ferromagnetic element 3 is less than or equal to 0.2 mm.
  • the ferromagnetic element 3 is glued to the label 2.
  • the ferromagnetic element 3 can be formed by a plate, a ring, a washer, a ring, a bar or a comb.
  • ferromagnetic elements 3 can be provided on the bottle 1 to carry out a specific marking as a function of the information to be given later, such as for example the use of the bottle and / or the material constituting this bottle.
  • a ferromagnetic element 3 corresponds to PVC and two ferromagnetic elements correspond to PET.
  • this type of marking can be carried out on any product made of non-magnetic material, such as PVC, PET or PE for example, but also on aluminum products.
  • the non-magnetic material products thus marked with at least one ferromagnetic element 3 can be recovered from the waste coming from landfills using a metal recovery system.
  • FIGs. 2 and 3 there is shown schematically an installation for recovering products of marked non-magnetic material, for example plastic bottles.
  • the installation includes a succession of conveyor belts for moving waste 10 from landfills and intended for recycling.
  • This installation includes a first carpet transporter 11 on which the waste 10 has been dumped and which transports this waste 10 to means for recovering ferromagnetic parts 12 such as, for example, scrap metal and products 1 made of non-magnetic material marked by the ferromagnetic element 3.
  • ferromagnetic parts 12 such as, for example, scrap metal and products 1 made of non-magnetic material marked by the ferromagnetic element 3.
  • the recovery means are formed for example by an electromagnet 13.
  • the ferromagnetic parts 12 and the products 1 of marked non-magnetic material are recovered by the electromagnet 13, the mass of the ferromagnetic elements associated with the products 1 of non-magnetic material being sufficiently high to allow these products to stick to the electromagnet 13.
  • the other waste falls from the carpet 11 onto another conveyor belt 14 and follows another recycling process.
  • the electromagnet 13 transports the recovered products 1 and 12 and deposits them on a conveyor belt 15 so as to entrain said products towards means for separating the ferromagnetic parts 12 and the products 1 of marked non-magnetic material.
  • These separation means are constituted in this embodiment, by a blade 16 of a fluid, for example water.
  • the separation is carried out by the difference in relative density between the ferromagnetic parts 12 and the products of marked non-magnetic material.
  • the ferromagnetic parts 12 such as, for example, scrap, which have a high density pass through the blade 16 and fall on a conveyor belt 17, while the plastic products 1, which have a low density, are moved by this blade 16 to a conveyor belt 18.
  • the products 1 of non-magnetic material marked and thus recovered are transferred to a mat 19 for example with rollers in order to orient the products 1 towards a gutter 20.
  • the products 1 pass in front of locating means constituted by at least one detection sensor 21, such as for example an electromagnetic coil.
  • the sensor 21 detects the ferromagnetic element or elements associated with each product and emits a signal which is stored in a storage means 22.
  • This storage means 22 controls, as a function of the stored signals, sorting means 23 which orient the products 1 on different conveyors 24 corresponding for example to the materials constituting these products.
  • These sorting means are constituted for example by an electromechanical separator.
  • the products 1 of marked non-magnetic material are transferred to means 25 for separating the products 1 of non-magnetic material and the ferromagnetic elements 3 carried by said products 1.
  • the separation means 25 comprise a means for moving the products 1 towards at least one crushing means partial of said products 1 for the ejection of ferromagnetic elements 3 due to its modulus of elasticity, after peeling of the label.
  • This ejection is also facilitated by the fixing of the ferromagnetic elements 3 on a rounded part of the products 1 which is subjected to bending and compression during the passage of said products 3 in said partial crushing means.
  • This partial crushing means is formed for example by at least one roller coated with a rubber ferrule.
  • the separation is carried out by peeling off the labels 2 by dipping and by separation of the ferromagnetic elements 3 from the labels 2 by dipping and wetting or by incineration and burning of said labels 2.
  • the separation of the products 1 and the ferromagnetic elements 3 can be carried out by grinding.
  • the means 25 for separating the products 1 and the ferromagnetic elements 3 comprise a grinder for obtaining powders and at least one separator for said powders.
  • This separator is formed for example by a magnetic separator, or a gravity separator, or an electrostatic separator or even an electromagnetic separator.

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  • Processing Of Solid Wastes (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Magnetic Treatment Devices (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Powder Metallurgy (AREA)
  • Sorting Of Articles (AREA)

Abstract

The subject of the present invention is a product (1) made from non-magnetic material, including at least one ferromagnetic element (3) for specifically marking this product and/or the material constituting the said product, the said ferromagnetic element (3) being intended for reclaiming the said product contained in rubbish tips, characterised in that the ferromagnetic element (3) is placed underneath an identification member (2). The present invention also relates to a method and an installation for reclaiming products of this type. <IMAGE>

Description

La présente invention est relative aux produits en matériau amagnétique tels que des bouteilles ou des récipients selon le préambule de la revendication 1 et concerne également un procédé et une installation de récupération de ce type de produits selon le préambule de la revendication 8 et 12, respectivement (voir DE-A-3810088).The present invention relates to products made of non-magnetic material such as bottles or containers according to the preamble of claim 1 and also relates to a method and an installation for recovering this type of product according to the preamble of claim 8 and 12, respectively. (see DE-A-3810088).

Les produits en matière plastique qui ont connu depuis plusieurs années une croissance exceptionnelle sont maintenant, par le fait qu'ils ne sont pas recyclés de manière efficace, un problème écologique par l'inflation des déchets qu'ils procurent.The plastic products which have experienced exceptional growth for several years are now, by the fact that they are not recycled efficiently, an ecological problem due to the inflation of the waste they provide.

En effet, la récupération des produits en matière plastique contenus dans les décharges est complexe et diffère des autres matériaux tels que le verre, les métaux ou le papier.Indeed, the recovery of plastic products contained in landfills is complex and differs from other materials such as glass, metals or paper.

Tout d'abord, le problème de la collecte de ce type de produits doit être résolu.First, the problem of collecting this type of product must be resolved.

Certaines sociétés ont mis en place un système de récupération des bouteille en PVC (chlorure de polyvinyle) dont la France est un gros producteur.Some companies have set up a recovery system for PVC (polyvinyl chloride) bottles, of which France is a major producer.

Le système de récupération s'inspire de celui organisé par les verriers.The recovery system is inspired by that organized by the glassmakers.

Grâce aux conteneurs pour le verre, un pourcentage de produits en verre est recyclé, par contre la récupération des bouteilles en PVC est inefficace.Thanks to the glass containers, a percentage of glass products are recycled, however the recovery of PVC bottles is ineffective.

Le problème de la collecte n'est pas le seul à résoudre, à la différence des autres matériaux, car les matières plastiques ne peuvent pas être mélangées.The collection problem is not the only one to be solved, unlike other materials, because plastics cannot be mixed.

En effet, il est impossible de recycler ensemble une bouteille d'eau minérale par exemple en PVC, une bouteille de boisson sucrée par exemple en PET (polyéthylène téréphtalate ) et les bouchons de ces bouteilles qui sont en polyéthylène.Indeed, it is impossible to recycle together a bottle of mineral water, for example PVC, a bottle of sugary drink, for example PET (polyethylene terephthalate) and the caps of these bottles which are made of polyethylene.

Ces deux matériaux se ressemblent dans leurs propriétés physiques, mais sont totalement incompatibles.These two materials are similar in their physical properties, but are completely incompatible.

En effet, le PVC dégage de l'acide chlorhydrique lors de son incinération.Indeed, PVC gives off hydrochloric acid during its incineration.

De plus contrairement aux métallurgistes et aux verriers qui peuvent indéfiniment recycler leurs matériaux les transformeurs de matière plastique n'ont pas cette facilité, les qualités premières des polymères s'estompant au fur et à mesure des traitements.In addition, unlike metallurgists and glassmakers who can recycle their materials indefinitely, plastic processors do not have this facility, the primary qualities of polymers fading as the treatments progress.

Les producteurs de résine trouvent deux procédés de seconde, voire de troisième génération, mais les procédés de régénération sophistiqués tels que thermolyse et glycolyse ne peuvent être rentables et appliqués qu'avec une collecte et une séparation des produits en matière plastique appropriées et efficaces.Resin producers find two second or even third generation processes, but sophisticated regeneration processes such as thermolysis and glycolysis can only be cost effective and applied with proper and efficient collection and separation of plastic products.

Certains constructeurs automobiles ont résolu le problème en marquant les éléments en matière plastique et en organisant eux mêmes leur circuit de récupération.Some car manufacturers have solved the problem by marking the plastic elements and organizing their recovery circuit themselves.

Mais, ce problème spécifique résolu ne donne pas de solution au tri des matières plastiques contenues dans les décharges et plus particulièrement dans les ordures ménagères, le consommateur ne pouvant pas réellement faire une différence entre les différentes matières plastiques.However, this specific problem solved does not give a solution to sorting the plastics contained in landfills and more particularly in household waste, the consumer being unable to really make a difference between the different plastics.

La présente invention a pour but de répondre au problème de la récupération des produits en matériau amagnétique du type bouteilles ou autres récipients de très grande consommation en matière plastique, en utilisant la filière de récupération des métaux qui aujourd'hui est opérationnelle.The object of the present invention is to respond to the problem of recovering products made of non-magnetic material of the type bottles or other containers of very high consumption in plastic material, by using the metal recovery sector which today is operational.

La présente invention a donc pour objet un produit en matériau amagnétique comportant au moins un élément ferromagnétique de marquage spécifique du produit et/ou du matériau constituant le produit, ledit élément ferromagnétique permettant la récupération à l'aide d'un électroaimant dudit produit contenu dans des décharges, caractérisé en ce que l'élément ferromagnétique est placé au-dessous d'un organe d'identification du produit.The present invention therefore relates to a product made of non-magnetic material comprising at least one ferromagnetic element for specific marking of the product and / or of the material constituting the product, said ferromagnetic element allowing the recovery, using an electromagnet, of said product contained in discharges, characterized in that the ferromagnetic element is placed below a product identification body.

Selon d'autres caractéristiques de l'invention :

  • l'organe d'identification du produit est une étiquette,
  • l'élément ferromagnétique est fixé par pincement sur une partie arrondie du produit,
  • l'élément ferromagnétique possède un module d'élasticité supérieur ou égal à 180 000 MPa,
  • l'élément ferromagnétique est en acier et a une épaisseur inférieure ou égale à 0,2mm,
  • l'élément ferromagnétique est collé à l'étiquette,
  • l'élément ferromagnétique est formé par une plaque, une bague, une rondelle, un anneau, une barrette ou un peigne.
According to other characteristics of the invention:
  • the product identification unit is a label,
  • the ferromagnetic element is fixed by pinching on a rounded part of the product,
  • the ferromagnetic element has a modulus of elasticity greater than or equal to 180,000 MPa,
  • the ferromagnetic element is made of steel and has a thickness less than or equal to 0.2 mm,
  • the ferromagnetic element is glued to the label,
  • the ferromagnetic element is formed by a plate, a ring, a washer, a ring, a bar or a comb.

La présente invention a également pour objet un procédé de récupération de ce type de produits en matériau amagnétique comportant un élément ferromagnétique de marquage, procédé dans lequel on récupère dans les déchets, les pièces ferromagnétiques et les produits en matériau amagnétique marqués,
caractérisé en ce que :

  • on sépare les pièces ferromagnétiques et les produits en matériau amagnétique marqués,
  • on repère et on trie les produits en matériau amagnétique marqués en fonction de leur utilisation et/ou du matériau constituant ces produits,
  • on sépare les produits en matériau amagnétique et les éléments ferromagnétiques portés par lesdits produits et placés au-dessous d'un organe d'identification du produit,
  • et on recycle lesdits produits et lesdits éléments ferromagnétiques.
The present invention also relates to a process for the recovery of this type of non-magnetic material products comprising a ferromagnetic marking element, a process in which the ferromagnetic parts and the products of marked non-magnetic material are recovered from the waste,
characterized in that:
  • separating the ferromagnetic parts and the products of marked non-magnetic material,
  • the non-magnetic material products marked and sorted are sorted according to their use and / or the material constituting these products,
  • the products made of non-magnetic material are separated from the ferromagnetic elements carried by said products and placed below a product identification member,
  • and said products and said ferromagnetic elements are recycled.

La présente invention a encore pour objet une installation de récupération des produits en matériau amagnétique comportant un élément ferromagnétique de marquage, comprenant des moyens de récupération dans les déchets, des pièces ferromagnétiques et des produits en matériau amagnétique marqués,
caractérisée en ce qu'elle comprend :

  • des moyens de séparation des pièces ferromagnétiques et des produits en matériau amagnétique marqués,
  • des moyens de repérage et des moyens de triage des produits en matériau amagnétique marqués en fonction de leur utilisation et/ou du matériau constituant ces produits,
  • des moyens de séparation des produits en matériau amagnétique et des éléments ferromagnétiques portés par lesdits produits et placés au-dessous d'un organe d'identification du produit,
  • et des moyens de recyclage desdits produits et desdits éléments ferromagnétiques.
The present invention also relates to an installation for recovering material products non-magnetic comprising a ferromagnetic marking element, comprising means for recovering from waste, ferromagnetic parts and products of marked non-magnetic material,
characterized in that it comprises:
  • means for separating ferromagnetic parts and marked non-magnetic material products,
  • means for locating and sorting means for products made of non-magnetic material marked as a function of their use and / or of the material constituting these products,
  • means for separating products made of non-magnetic material and ferromagnetic elements carried by said products and placed below a product identification member,
  • and means for recycling said products and said ferromagnetic elements.

L'invention sera mieux comprise à l'aide de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en référence aux dessins annexés sur lesquels :

  • la Fig. 1 est une vue schématique en perspective d'un produit en matériau amagnétique selon l'invention et plus particulièrement d'une bouteille,
  • la Fig. 2 est une vue en coupe selon la ligne 2-2 de la Fig. 1,
  • la Fig. 3 est une vue schématique en élévation des moyens de récupération des pièces ferromagnétiques des produits en matériau amagnétique dans une installation selon l'invention,
  • la Fig. 4 est une vue schématique de dessus des moyens de repérage et des moyens de triage des produits en matériau amagnétique dans une installation selon l'invention.
The invention will be better understood with the aid of the description which follows, given solely by way of example, and made with reference to the appended drawings in which:
  • Fig. 1 is a schematic perspective view of a product made of non-magnetic material according to the invention and more particularly of a bottle,
  • Fig. 2 is a sectional view along line 2-2 of FIG. 1,
  • Fig. 3 is a schematic elevation view of the means for recovering ferromagnetic parts of the products made of non-magnetic material in an installation according to the invention,
  • Fig. 4 is a schematic top view of the means for locating and sorting means for products made of non-magnetic material in an installation according to the invention.

Sur la Fig. 1, on a représenté schématiquement une bouteille 1 en matériau amagnétique et notamment en matière plastique portant un organe d'identification comme par exemple une étiquette 2 sous laquelle est placé au moins un élément ferromagnétique 3 de marquage spécifique.In Fig. 1, there is shown schematically a bottle 1 of non-magnetic material and in particular of plastic material carrying an identification member such as for example a label 2 under which is placed at least one ferromagnetic element 3 of specific marking.

L'élément ferromagnétique 3 est par exemple disposé dans un logement 4 réalisé lors de la mise en forme de la bouteille 1, comme représenté sur la Fig. 2.The ferromagnetic element 3 is for example placed in a housing 4 produced during the shaping of the bottle 1, as shown in FIG. 2.

Cet élément ferromagnétique 3 affleure la surface extérieure de la bouteille 1 et l'étiquette 2 s'appuie sur la surface extérieure dudit élément 3 et sur la surface extérieure de ladite bouteille.This ferromagnetic element 3 is flush with the exterior surface of the bottle 1 and the label 2 is supported on the exterior surface of said element 3 and on the exterior surface of said bottle.

D'autre part, l'élément ferromagnétique 3 peut être inséré directement dans le matériau au moment du moulage de la bouteille 1 ou fixé par exemple par collage sur la surface extérieure de cette bouteille.On the other hand, the ferromagnetic element 3 can be inserted directly into the material at the time of molding of the bottle 1 or fixed, for example, by bonding to the exterior surface of this bottle.

Selon une variante, l'élément ferromagnétique 3 est fixé par pincement sur une partie arrondie du produit 1.According to a variant, the ferromagnetic element 3 is fixed by pinching on a rounded part of the product 1.

Dans ce cas, l'élément ferromagnétique 3 possède un module d'élasticité supérieur ou égal à 180 000 MPa. L'épaisseur de cet élément ferromagnétique 3 est inférieure ou égale à 0,2 mm.In this case, the ferromagnetic element 3 has a modulus of elasticity greater than or equal to 180,000 MPa. The thickness of this ferromagnetic element 3 is less than or equal to 0.2 mm.

Selon une autre variante, l'élément ferromagnétique 3 est collé à l'étiquette 2.According to another variant, the ferromagnetic element 3 is glued to the label 2.

L'élément ferromagnétique 3 peut être formé par une plaque, une bague, une rondelle, un anneau, une barrette ou un peigne.The ferromagnetic element 3 can be formed by a plate, a ring, a washer, a ring, a bar or a comb.

Plusieurs éléments ferromagnétiques 3 peuvent être prévus sur la bouteille 1 pour réaliser un marquage spécifique en fonction de l'information devant être donnée ultérieurement, comme par exemple l'utilisation de la bouteille et/ou le matériau constituant cette bouteille.Several ferromagnetic elements 3 can be provided on the bottle 1 to carry out a specific marking as a function of the information to be given later, such as for example the use of the bottle and / or the material constituting this bottle.

Par exemple, un élément ferromagnétique 3 correspond au PVC et deux éléments ferromagnétiques correspondent au PET.For example, a ferromagnetic element 3 corresponds to PVC and two ferromagnetic elements correspond to PET.

D'une manière générale, ce type de marquage peut être effectué sur tout produit en matériau amagnétique, comme par exemple en PVC, PET ou PE, mais également sur des produits en aluminium.In general, this type of marking can be carried out on any product made of non-magnetic material, such as PVC, PET or PE for example, but also on aluminum products.

Les produits en matériau amagnétique ainsi marqués par au moins un élément ferromagnétique 3 peuvent être récupérés dans les déchets provenant de décharges en utilisant une filière de récupération des métaux.The non-magnetic material products thus marked with at least one ferromagnetic element 3 can be recovered from the waste coming from landfills using a metal recovery system.

Le procédé de récupération des produits en matériau amagnétique marqués selon la présente invention, consiste :

  • à récupérer dans les déchets, les pièces ferromagnétiques et les produits en matériau amagnétique marqués,
  • à séparer les pièces ferromagnétiques et les produits en matériau magnétique marqués,
  • à repérer et à trier les produits en matériau amagnétique marqués en fonction de leur utilisation et/ou du matériau constituant ces produits,
  • à séparer les produits en matériau amagnétique et les éléments ferromagnétiques portés par lesdits produits,
  • et à recycler lesdits produits et lesdits éléments ferromagnétiques.
The process for recovering products of non-magnetic material marked according to the present invention, consists of:
  • to be recovered from waste, ferromagnetic parts and products of marked non-magnetic material,
  • to separate ferromagnetic parts and marked magnetic material products,
  • identifying and sorting the non-magnetic material products marked according to their use and / or the material constituting these products,
  • separating the products made of non-magnetic material and the ferromagnetic elements carried by said products,
  • and recycling said products and said ferromagnetic elements.

Sur les Figs. 2 et 3, on a représenté schématiquement une installation de récupération des produits en matériau amagnétique marqués, par exemple des bouteilles en matière plastique.In Figs. 2 and 3, there is shown schematically an installation for recovering products of marked non-magnetic material, for example plastic bottles.

L'installation comporte une succession de tapis transporteurs pour le déplacement des déchets 10 provenant de décharges et destinés à être recyclés.The installation includes a succession of conveyor belts for moving waste 10 from landfills and intended for recycling.

Cette installation comporte un premier tapis transporteur 11 sur lequel les déchets 10 ont été déversés et qui transporte ces déchets 10 vers des moyens de récupération des pièces ferromagnétiques 12 comme par exemple les ferrailles et les produits 1 en matériau amagnétique marqués par l'élément ferromagnétique 3.This installation includes a first carpet transporter 11 on which the waste 10 has been dumped and which transports this waste 10 to means for recovering ferromagnetic parts 12 such as, for example, scrap metal and products 1 made of non-magnetic material marked by the ferromagnetic element 3.

Les moyens de récupération sont formés par exemple par un électroaimant 13.The recovery means are formed for example by an electromagnet 13.

Les pièces ferromagnétiques 12 et les produits 1 en matériau amagnétique marqués sont récupérés par l'électroaimant 13, la masse des éléments ferromagnétiques associés aux produits 1 en matériau amagnétique étant suffisamment élevée pour permettre à ces produits de se coller sur l'électroaimant 13.The ferromagnetic parts 12 and the products 1 of marked non-magnetic material are recovered by the electromagnet 13, the mass of the ferromagnetic elements associated with the products 1 of non-magnetic material being sufficiently high to allow these products to stick to the electromagnet 13.

Les autres déchets tombent du tapis 11 sur un autre tapis transporteur 14 et suivent une autre filière de recyclage.The other waste falls from the carpet 11 onto another conveyor belt 14 and follows another recycling process.

L'électroaimant 13 transporte les produits 1 et 12 récupérés et les dépose sur un tapis transporteur 15 de façon à entraîner lesdits produits vers des moyens de séparation des pièces ferromagnétiques 12 et des produits 1 en matériau amagnétique marqués.The electromagnet 13 transports the recovered products 1 and 12 and deposits them on a conveyor belt 15 so as to entrain said products towards means for separating the ferromagnetic parts 12 and the products 1 of marked non-magnetic material.

Ces moyens de séparation sont constitués dans cet exemple de réalisation, par une lame 16 d'un fluide par exemple de l'eau.These separation means are constituted in this embodiment, by a blade 16 of a fluid, for example water.

La séparation est réalisée par la différence de densité relative entre les pièces ferromagnétiques 12 et les produits en matériau amagnétique marqués.The separation is carried out by the difference in relative density between the ferromagnetic parts 12 and the products of marked non-magnetic material.

En effet, les pièces ferromagnétiques 12 comme par exemple les ferrailles, qui ont une grande densité traversent la lame 16 et tombent sur un tapis transporteur 17, alors que les produits 1 en matière plastique, qui ont une densité faible, sont déplacés par cette lame 16 vers un tapis transporteur 18.In fact, the ferromagnetic parts 12 such as, for example, scrap, which have a high density pass through the blade 16 and fall on a conveyor belt 17, while the plastic products 1, which have a low density, are moved by this blade 16 to a conveyor belt 18.

Ensuite, les produits 1 en matériau amagnétique marqués et ainsi récupérés sont transférés sur un tapis 19 par exemple à rouleaux afin d'orienter les produits 1 vers une gouttière 20.Then, the products 1 of non-magnetic material marked and thus recovered are transferred to a mat 19 for example with rollers in order to orient the products 1 towards a gutter 20.

Dans la gouttière 20, les produits 1 passent devant des moyens de repérage constitués par au moins un capteur de détection 21, comme par exemple une bobine électromagnétique.In the gutter 20, the products 1 pass in front of locating means constituted by at least one detection sensor 21, such as for example an electromagnetic coil.

Le capteur 21 détecte le ou les éléments ferromagnétiques associés à chaque produit et émet un signal qui est mémorisé dans un moyen de mémorisation 22.The sensor 21 detects the ferromagnetic element or elements associated with each product and emits a signal which is stored in a storage means 22.

Ce moyen de mémorisation 22 commande en fonction des signaux mémorisés, des moyens de triage 23 qui orientent les produits 1 sur différents transporteurs 24 correspondant par exemple aux matériaux constituant ces produits.This storage means 22 controls, as a function of the stored signals, sorting means 23 which orient the products 1 on different conveyors 24 corresponding for example to the materials constituting these products.

Ces moyens de triage sont constitués par exemple par un séparateur électromécanique.These sorting means are constituted for example by an electromechanical separator.

Ensuite, les produits 1 en matériau amagnétique marqués sont transférés vers des moyens 25 de séparation des produits 1 en matériau amagnétique et des éléments ferromagnétiques 3 portés par lesdits produits 1.Next, the products 1 of marked non-magnetic material are transferred to means 25 for separating the products 1 of non-magnetic material and the ferromagnetic elements 3 carried by said products 1.

Après cette opération, les produits 1 et les éléments ferromagnétiques 3 sont recyclés.After this operation, the products 1 and the ferromagnetic elements 3 are recycled.

Différentes variantes peuvent être envisagées pour les moyens 25 de séparation des produits 1 et des éléments ferromagnétiques 3.Different variants can be envisaged for the means 25 for separating the products 1 and the ferromagnetic elements 3.

Dans le cas où les éléments ferromagnétiques 3 sont fixés par pincement sur une partie arrondie des produits 1 notamment au-dessous de l'étiquette 2, les moyens 25 de séparation comprennent un moyen de déplacement des produits 1 vers au moins un moyen d'écrasement partiel desdits produits 1 pour l'éjection des éléments ferromagnétiques 3 du fait de son module d'élasticité, après décollage de l'étiquette.In the case where the ferromagnetic elements 3 are fixed by pinching on a rounded part of the products 1, in particular below the label 2, the separation means 25 comprise a means for moving the products 1 towards at least one crushing means partial of said products 1 for the ejection of ferromagnetic elements 3 due to its modulus of elasticity, after peeling of the label.

Cette éjection est facilitée également par la fixation des éléments ferromagnétiques 3 sur une partie arrondie des produits 1 qui est soumise à la flexion et à la compression lors du passage desdits produits 3 dans ledit moyen d'écrasement partiel.This ejection is also facilitated by the fixing of the ferromagnetic elements 3 on a rounded part of the products 1 which is subjected to bending and compression during the passage of said products 3 in said partial crushing means.

Ce moyen d'écrasement partiel est formé par exemple par au moins un rouleau enrobé d'une virole en caoutchouc.This partial crushing means is formed for example by at least one roller coated with a rubber ferrule.

Dans le cas où les éléments ferromagnétiques 3 sont collés au-dessous des étiquettes 2 des produits 3, la séparation est réalisée par décollement des étiquettes 2 par trempé et par séparation des éléments ferromagnétiques 3 des étiquettes 2 par trempé et mouillage ou par incinération et brûlage desdites étiquettes 2.In the case where the ferromagnetic elements 3 are glued below the labels 2 of the products 3, the separation is carried out by peeling off the labels 2 by dipping and by separation of the ferromagnetic elements 3 from the labels 2 by dipping and wetting or by incineration and burning of said labels 2.

Selon une autre variante, la séparation des produits 1 et des éléments ferromagnétiques 3 peut être réalisée par broyage.According to another variant, the separation of the products 1 and the ferromagnetic elements 3 can be carried out by grinding.

Dans ce cas, les moyens 25 de séparation des produits 1 et des éléments ferromagnétiques 3 comprennent un broyeur pour obtenir des poudres et au moins un séparateur desdites poudres.In this case, the means 25 for separating the products 1 and the ferromagnetic elements 3 comprise a grinder for obtaining powders and at least one separator for said powders.

Ce séparateur est formé par exemple par un séparateur magnétique, ou un séparateur par gravité, ou un séparateur électrostatique ou encore un séparateur électromagnétique.This separator is formed for example by a magnetic separator, or a gravity separator, or an electrostatic separator or even an electromagnetic separator.

Claims (21)

  1. Product consisting of amagnetic material comprising at least one ferromagnetic element (3) for specific marking of the product (1) and/or of the material constituting the product, said ferromagnetic element (3) allowing the reclaiming by means of an electromagnet of said product (1) contained in rubbish dumps, characterized in that the ferromagnetic element (3) is placed below a member (2) for the identification of the product (1).
  2. Product according to Claim 1, characterized in that the member for the identification of the product (1) is a label (2).
  3. Product according to Claim 1, characterized in that said ferromagnetic element (3) is fixed by gripping to a rounded part of the product (1).
  4. Product according to one of Claims 1 to 3, characterized in that said ferromagnetic element (3) has a modulus of elasticity greater than or equal to 180,000 MPa.
  5. Product according to one of Claims 1 to 4, characterized in that said ferromagnetic element (3) is made of steel and has a thickness less than or equal to 0.2 mm.
  6. Product according to one of Claims 1 to 5, characterized in that said ferromagnetic element (3) is stuck to the label (2).
  7. Product according to any one of Claims 1 to 6, characterized in that said ferromagnetic element (3) is formed by a plate, a ring, a washer, a collar, a small bar or a comb.
  8. Method for reclaiming marked products (1) consisting of amagnetic material, according to any one of the preceding claims, in which one reclaims from waste material (10) the ferromagnetic memoers (12) and the marked loose products (1) consisting of amagnetic material, characterized in that:
    - the ferromagnetic members (12) and the marked products (1) consisting of amagnetic material are separated,
    - the marked products (1) consisting of magnetic material are identified and sorted depending on their use and/or the material constituting these products,
    - the products (1) consisting of amagnetic material and the ferromagnetic elements (3) carried by said products (1) and placed below a member for the identification of the product are separated,
    - and said products (1) and said ferromagnetic elements are recycled.
  9. Method according to Claim 8, characterized in that the separation of the ferromagnetic elements (3) fixed by gripping to a rounded part of the product (1) below the member (2) for the identification of said product (1) is achieved by detachment of the identification member (2) by soaking and by partial crushing of the product (1) under at least one roller in order to cause the ejection of the ferromagnetic element (3) of said product (1).
  10. Method according to Claim 8, characterised in that the separation of the ferromagnetic element (3) stuck below the member (2) for the identification of the product (1) is achieved by detaching the identification member (2) by soaking and by separation of the identification member (2) by soaking and wetting or by incineration and burning of said identification member (2).
  11. Method according to Claim 8, characterized in that the separation of the product (1) and of the ferromagnetic element (3) is achieved by crushing of said product and of said ferromagnetic element in order to obtain powders and by separation of said powders by magnetization or by gravity or electrostatically.
  12. Installation for reclaiming marked products (1) consisting of amagnetic material for carrying out the method according to Claim 1, comprising means (13) for reclaiming from waste material (10), ferromagnetic parts (12) and marked products (1) consisting of amagnetic material, characterized in that it comprises:
    - means (16) for the separation of the ferromagnetic parts (12) and of the marked products (1) consisting of amagnetic material,
    - means (21, 22) for the identification and means (23) for the sorting of the marked products (1) consisting of amagnetic material depending on their use and/or the material constituting these products (1),
    - means (25) for the separation of the products (1) consisting of amagnetic material and of the ferromagnetic elements (3) carried by said products (1) and placed below a member for the identification of the product,
    - and means for the recycling of said products (1) and of said ferromagnetic elements (3).
  13. Installation according to Claim 1, characterized in that the reclaiming means are formed by an electromagnet (13).
  14. Installation according to Claim 12, characterized in that the means for separation of the ferromagnetic parts (12) and of the products (1) are formed by a jet (16) of a fluid transferring said marked products (1) of amagnetic material to the reclaiming means (21, 22).
  15. Installation according to Claim 12, characterized in that the identification means comprise a sensor (21) for detecting marked products (1) of amagnetic material depending on their use and/or the material constituting these products (1), associated with means (22) for the memorization of signals emitted by said sensor (21).
  16. Installation according to Claim 15, characterized in that the detection sensor (21) is formed by at least one electromagnetic coil.
  17. Installation according to Claims 12 and 15, characterized in that the sorting means are formed by an electromechanical separator (23) connected to said memorization means (22).
  18. Installation according to Claim 12, characterized in that the means (25) for the separation of the products (1) and ferromagnetic element (3) fixed by gripping to a rounded part of the products (1) comprise means for moving the products (1) towards at least one means for partial crushing of said products (1) for the ejection of the ferromagnetic elements (3).
  19. Installation according to Claim 18, characterized in that said means for the partial crushing of the products (1) is formed by at least one roller covered with a rubber sleeve.
  20. Installation according to Claim 12, characterized in that the means for the separation of the products (1) and of the ferromagnetic elements (3) comprise a crusher in order to obtain powders and at least one separator for said powders.
  21. Installation according to Claim 20, characterized in that said separator is formed by a magnetic separator or a separator operating by gravity or an electrostatic separator.
EP93401953A 1992-07-28 1993-07-27 Product from amagnetic material, method and installation for reclaiming products of this type Expired - Lifetime EP0581673B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9209302A FR2694217B1 (en) 1992-07-28 1992-07-28 Product in non-magnetic material and process and installation for recovering this type of product.
FR9209302 1992-07-28

Publications (2)

Publication Number Publication Date
EP0581673A1 EP0581673A1 (en) 1994-02-02
EP0581673B1 true EP0581673B1 (en) 1996-01-03

Family

ID=9432342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401953A Expired - Lifetime EP0581673B1 (en) 1992-07-28 1993-07-27 Product from amagnetic material, method and installation for reclaiming products of this type

Country Status (4)

Country Link
EP (1) EP0581673B1 (en)
AT (1) ATE132399T1 (en)
DE (1) DE69301207T2 (en)
FR (1) FR2694217B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2103174B1 (en) * 1994-04-07 1998-04-01 Gomez Castro Antonio IMPROVEMENTS INTRODUCED IN THE MANUFACTURE OF CONTAINERS AND OTHER RECOVERABLE OR RECYCLABLE PRODUCTS AFTER THEIR DISPOSAL AS URBAN WASTE.
DE19520298A1 (en) * 1995-06-02 1996-12-05 Bayer Ag Sorting device for biological cells or viruses
IT1290454B1 (en) * 1997-04-04 1998-12-03 William Rossi PROCEDURE FOR THE SEPARATION OF NON-FERROUS AND NON-FERROUS PRODUCTS PREPARED TO BE SEPARATED
CN108394622A (en) * 2018-03-16 2018-08-14 刘华 It is a kind of magnetism viscose glue, can magnetic separation recovery packing container and packaging waste recovery method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7603705A (en) * 1976-04-08 1977-10-11 Ir Rudolph Abraham Hulscher PROCEDURE FOR SORTING SPIN COPS, AND SPIDER SHELLS FOR USE THEREIN.
GB2005885A (en) * 1977-05-05 1979-04-25 Schweppes Ltd Bottle sorting by code recognition
JPS55155782A (en) * 1979-05-24 1980-12-04 Toshiro Watanabe Utilization system of municipal waste and related industrial waste
JPS55160039A (en) * 1979-05-31 1980-12-12 Takashi Nagashima Eraser
DE3810088A1 (en) * 1988-03-25 1989-11-16 Edmund Prof Dr Hornung Plastic container

Also Published As

Publication number Publication date
FR2694217B1 (en) 1994-10-21
EP0581673A1 (en) 1994-02-02
FR2694217A1 (en) 1994-02-04
ATE132399T1 (en) 1996-01-15
DE69301207D1 (en) 1996-02-15
DE69301207T2 (en) 1996-09-05

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