WO1995007810A1 - Method and plant for sorting plastic materials from household and industrial refuse - Google Patents

Method and plant for sorting plastic materials from household and industrial refuse Download PDF

Info

Publication number
WO1995007810A1
WO1995007810A1 PCT/EP1994/002944 EP9402944W WO9507810A1 WO 1995007810 A1 WO1995007810 A1 WO 1995007810A1 EP 9402944 W EP9402944 W EP 9402944W WO 9507810 A1 WO9507810 A1 WO 9507810A1
Authority
WO
WIPO (PCT)
Prior art keywords
waste
plastic
particles
plastics
plastic materials
Prior art date
Application number
PCT/EP1994/002944
Other languages
French (fr)
Inventor
Patrick Muller
Original Assignee
Quadra Holding S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quadra Holding S.A. filed Critical Quadra Holding S.A.
Priority to AU77399/94A priority Critical patent/AU7739994A/en
Publication of WO1995007810A1 publication Critical patent/WO1995007810A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • 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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0231—Centrifugating, cyclones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
    • B29B2017/0244—Mechanical separating techniques; devices therefor using density difference in liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0286—Cleaning means used for separation
    • B29B2017/0289—Washing the materials in liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0633—LDPE, i.e. low density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention relates to a process for sorting plastics from household or industrial waste. It also proposes an installation for implementing the method of the present invention.
  • Waste contains, in fact, a large number of products that could be recycled.
  • the big problem is to separate the different products so that they can be reused efficiently and economically.
  • plastic waste is often polluted by other products such as: paper, metals, glue, food, etc., especially when it comes to household waste.
  • European patent EP 0 140 846 B1 describes a method and an installation for recovering heterogeneous plastics, that is to say comprising different types of plastics without having to separate them beforehand.
  • it is proposed to grind the plastic materials, to mix them cold and to heat them in two distinct stages so as to obtain a relatively homogeneous product which can be used to make useful objects.
  • the products obtained by this process as good as they are, can never compete with products made from virgin materials. It is therefore difficult to transform them because their properties can vary from one batch to another.
  • European patent application EP 0 334 420 A2 proposes to recycle plastic waste by mixing it with virgin polyolefins and inert additives.
  • the products obtained by this process will be of inferior quality because they contain a high percentage of various undefined and variable materials from the waste. In order to obtain good quality recycled products, the different constituents of the waste must be separated.
  • the object of the present invention is to propose a process making it possible to automatically sort the waste into revalorizable fractions and that in an inexpensive way with a view to recycling them.
  • the plastic materials thus obtained essentially consist of polyolefins c. to d. low density polyethylene (LDPE), high density polyethylene
  • HDPE high density polyethylene
  • PP polypropylene
  • PS polystyrene
  • the materials obtained are separated into two fractions, one of which is mainly composed of plastic film particles, while the other fraction is composed mainly particles from rigid plastic articles.
  • the fractions obtained can advantageously be subjected to an extrusion followed by granulation so as to obtain granules or pellets or else the fractions can be ground into a fine powder.
  • These granules, pellets or powders can be directly reused to manufacture plastic objects by conventional methods such as extrusion, molding, blowing etc.
  • the waste is shredded into particles of approximately 35 mm.
  • One of the main advantages of this process is that one obtains automatically plastic products of constant quality and comparable to virgin products independently of the composition of the starting material.
  • the film fraction consists of almost pure low density polyethylene (LDPE) while the fraction from rigid products consists of high density polyethylene (HDPE), polypropylene (PP) and polystyrene (PS). These products are compatible with each other and can be used as is to make new quality packaging or they can be separated into separate fractions.
  • HDPE high density polyethylene
  • PP polypropylene
  • PS polystyrene
  • One of the great advantages of this process is that it also makes it possible to revalue "TETRA PAK” packaging, that is to say packaging for liquids, composed of paper, plastic (PE) and metal (Al).
  • the paper fibers are moistened during the washing step and are subsequently separated from their support by friction. The paper fibers can then be recovered and recycled.
  • Yet another advantage of this process is that it also makes it possible to revalue other products such as magnetic and non-magnetic metals, paper, PVC and other products which are extracted successively and selectively from the production chain.
  • the method according to the present invention was tested on waste in "yellow bags" which contained about 95% of mixed plastics.
  • the remaining 5% consisted of various products such as metals, glass, paper, rubber, wood, composite packaging such as “TETRA PAK” and compostable products.
  • the plastic fraction consists of:
  • PET polyethylene terephthalate
  • the present process makes it possible to actually recycle plastic materials, that is to say to reuse them for the same purpose. Items obtained from plastic materials recycled by the present process are high quality products which can compete with products made from virgin plastic materials.
  • the present invention also provides an installation for implementing the present method.
  • the installation for implementing the invention is characterized in that it essentially comprises: at least one hopper for receiving waste, means for automatic bagging of plastic bags with vibrating soil on transfer conveyor, at at least one calibrating mill, at least a first washing station, means for separating PVC, ABS, PET, PA, PC, sand, residual metallic waste and all other materials with high density, means for separating the composite elements by friction, means for extracting the paper fibers, and means for drying the residual plastic materials.
  • the installation comprises means for separating the residual plastic materials into two fractions.
  • the installation also comprises means for extruding the sorted plastics to obtain granules or pellets and / or means for grinding the sorted plastics into a fine powder.
  • the separation of PVC, ABS, PET, PA, PC, sand, residual metal waste and all other high density materials is carried out in a settling tank.
  • the separation of the paper is carried out in a centrifuge.
  • the separation of plastics into two fractions is carried out in an air separator.
  • the installation also includes an undercarriage and means for separating non-ferrous, that is to say non-magnetic, metals.
  • the present process and the present installation can also be used to automatically sort waste plastic materials from industry.
  • these wastes are easier to treat because they contain less polluting or organic matter.
  • FIG. 1 shows a sorting facility for plastic materials from household and / or industrial waste.
  • the installation shown is intended to receive waste packaged in bags. These plastic bags are poured onto a receiving hopper 5 and the waste is de-bagged in the de-bagging machine 10 comprising a vibrating soil 15.
  • the waste is subjected to a rough derailment in a de-ironer 20 and the recovered iron is poured into a container 25
  • the non-magnetic metals are extracted in means 30 for extracting non-magnetic metals and then recovered in a container 35.
  • the waste is then conveyed by a conveyor belt 40 in a crusher 45.
  • the crushed waste is again subjected to a railroad drop in a railroad drum 50 and the iron recovered at this stage is also poured into the container 25.
  • the crushed and defrapped waste is then conveyed by means of a conveyor belt 55 to a washing installation 60.
  • the humidified waste is transported by an endless screw 65 in a paper separator 70.
  • the composite elements are separated by friction.
  • the waste removed from the paper fibers is then discharged into a washing installation 75.
  • a decanter 80 the high density materials are extracted and the residual waste is discharged into a centrifuge 90 by means of an endless screw 85.
  • the residual waste is treated in an air separator 100 and the fraction containing essentially plastic material in the form of film is collected in a first container 105 while the plastic material containing particles coming from articles of material rigid plastic is collected in a second container 110.
  • the plastic material in the form of a film is subjected to an extrusion in an extruder 115 and then granulated in a granulation installation 120, while the plastic material coming from rigid plastic articles is ground into a fine powder in a 125 mill.
  • the two fractions s are then collected separately in "big bags" 130 or else in silos 135.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Method for sorting plastic materials from household or industrial refuse consisting in: shredding the refuse into coarse particles; washing the residual refuse and wetting composite items; extracting all other high density materials; separating composite items by friction means, especially paper bonded to a plastic or metal support; extracting paper fibres; and washing and drying the plastic materials obtained. The plant for carrying out said method is also described.

Description

PROCEDE ET INSTALLATION DE TRIAGE DE MATIERES PLASTIQUES ISSUES DE DECHETS MENAGERS ET INDUSTRIELS METHOD AND PLANT FOR SORTING PLASTIC MATERIALS FROM HOUSEHOLD AND INDUSTRIAL WASTE
La présente invention concerne un procédé de triage de matières plastiques issues de déchets ménagers ou industriels. Elle propose aussi une installation pour la mise en oeuvre du procédé de la présente invention.The present invention relates to a process for sorting plastics from household or industrial waste. It also proposes an installation for implementing the method of the present invention.
Dans de nombreux pays industrialisés, il devient de plus en plus difficile de se débarrasser des déchets d'une part parce que les sites adéquats pour les décharges deviennent rares et cher à installer et devront disparaître en quasi totalité dans les années à venir. D'autre part l'incinération des déchets nécessite un traitement des fumées complexe et onéreux. De plus, la quantité de déchets n'a cessé de croître ces dernières années.In many industrialized countries, it is becoming more and more difficult to dispose of waste on the one hand because adequate sites for landfills are becoming scarce and expensive to install and will have to disappear almost entirely in the coming years. On the other hand the incineration of waste requires complex and expensive smoke treatment. In addition, the amount of waste has grown steadily in recent years.
De nombreuses idées ont été proposées, depuis quelques années, pour diminuer la quantité de produits qui doivent être mis en décharge ou incinérés. Les déchets contiennent, en effet, un grand nombre de produits qui pourraient être revalorisés. Le grand problème consiste à séparer les différents produits de sorte à pouvoir les réutiliser d'une manière efficace et économique.Many ideas have been proposed in recent years to reduce the amount of products that must be landfilled or incinerated. Waste contains, in fact, a large number of products that could be recycled. The big problem is to separate the different products so that they can be reused efficiently and economically.
Actuellement, on essai de faire faire un premier tri, à la source, par le consommateur qui doit séparer les emballages, le verre, le papier etc des déchets organiques. Un tel système ne peut fonctionner que si les gens participent activement et durablement. En Allemagne, par exemple, on procède depuis peu à une collecte séparée des emballages dans des "sacs jaunes". Ces "sacs jaunes" contiennent toutes sortes de matières plastiques diverses ainsi que des produits métalliques et non-métalliques.Currently, we are trying to have a first sort, at source, by the consumer who must separate packaging, glass, paper, etc. from organic waste. Such a system can only work if people participate actively and sustainably. In Germany, for example, a separate collection of packaging in "yellow bags" has recently started. These "yellow bags" contain all kinds of various plastics as well as metallic and non-metallic products.
En industrie, on sépare aussi, de plus en plus, les déchets par catégorie en vue de les recycler.In industry, we are also increasingly separating waste by category in order to recycle it.
Le grand problème qui n'est pas encore résolu d'une manière satisfaisante jusqu'à présent, est de réutiliser ces déchets à des fins utiles surtout en ce qui concerne les déchets hétérogènes en matière plastique.The big problem that has not yet been satisfactorily resolved is to reuse this waste for useful purposes, especially with regard to heterogeneous plastic waste.
Il s'agit-là souvent d'un mélange de différentes matières plastiques qui sont parfois incompatibles entre elles. De plus, ces déchets en matière plastique sont souvent pollués par d'autres produits tels que: papier, métaux, colle, aliments etc, surtout quand il s'agit d'ordures ménagères.This is often a mixture of different plastics which are sometimes incompatible with each other. In addition, this plastic waste is often polluted by other products such as: paper, metals, glue, food, etc., especially when it comes to household waste.
Le brevet européen EP 0 140 846 Bl décrit un procédé et une installation pour récupérer des matières plastiques hétérogènes c'est-à-dire comprenant différents types de matériaux plastiques sans devoir les séparer préalablement. On propose dans ce document, de broyer les matières plastiques, de les mélanger à froid et de les chauffer en deux étapes distinctes de sorte à obtenir un produit relativement homogène qui peut être utilisé pour fabriquer des objets utiles. Les produits obtenus par ce procédé, d'aussi bonne qualité qu'ils soient, ne pourront jamais concurrencer avec des produits fabriqués à partir de matériaux vierges. Aussi est-il difficile de les transformer car leurs propriétés peuvent varier d'un lot à un autre.European patent EP 0 140 846 B1 describes a method and an installation for recovering heterogeneous plastics, that is to say comprising different types of plastics without having to separate them beforehand. In this document, it is proposed to grind the plastic materials, to mix them cold and to heat them in two distinct stages so as to obtain a relatively homogeneous product which can be used to make useful objects. The products obtained by this process, as good as they are, can never compete with products made from virgin materials. It is therefore difficult to transform them because their properties can vary from one batch to another.
La demande de brevet européenne EP 0 334 420 A2 propose de recycler des déchets en matière plastique en les mélangeant à des polyoléfines vierges et des additifs inertes. Les produits obtenus par ce procédé seront de qualité inférieure car ils contiennent un pourcentage élevé de matériaux divers non définis et variables en provenance des déchets. Afin d'obtenir des produits recyclés de bonne qualité il faut séparer les différents constituants des déchets.European patent application EP 0 334 420 A2 proposes to recycle plastic waste by mixing it with virgin polyolefins and inert additives. The products obtained by this process will be of inferior quality because they contain a high percentage of various undefined and variable materials from the waste. In order to obtain good quality recycled products, the different constituents of the waste must be separated.
Actuellement, les déchets sont triés à la main par catégorie de produits, après leur collecte, dans des centres de tri. Il va sans dire qu'il s'agit-là d'un travail pénible, insalubre et cher. En plus, le triage des différentes qualités de matières plastiques est difficilement réalisable manuellement car les matières plastiques sont difficiles à distinguer.Currently, waste is sorted by hand by product category, after collection, in sorting centers. It goes without saying that this is strenuous, unhealthy and expensive work. In addition, the sorting of the different qualities of plastics is difficult to do manually because plastics are difficult to distinguish.
Le but de la présente invention est de proposer un procédé permettant de trier automatiquement les déchets en des fractions revalorisables et cela de manière peu onéreuse en vue de les recycler.The object of the present invention is to propose a process making it possible to automatically sort the waste into revalorizable fractions and that in an inexpensive way with a view to recycling them.
Ce but est atteint par le procédé selon la présente invention essentiellement caractérisée par la combinaison des étapes successives suivantes : - déchiquetage des déchets en particules grossières,This object is achieved by the method according to the present invention essentially characterized by the combination of the following successive steps: - shredding of waste into coarse particles,
- lavage .des déchets résiduels avec humidification des éléments composites, extraction du polychlorure de vinyle (PVC) , de 1 'acrylonitrile-butadiène-styrène (ABS) , du polyéthylènetéréphtalate (PET) du polyacrylate (PA) , du polycarbonate (PC) , du sable, des déchets métalliques résiduels et de tous les autres matériaux à haute densité, , séparation par friction des éléments composites, notamment du papier collé sur un support en matière plastique ou en métal,- washing . residual waste with humidification of the composite elements, extraction of polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), polyacrylate (PA), polycarbonate (PC), sand, residual metallic waste and all other high density materials, friction separation of the composite elements, in particular paper glued to a plastic or metal support,
- extraction des fibres de papier,- extraction of paper fibers,
- séchage des matériaux plastiques obtenus.- drying of the plastic materials obtained.
Les matériaux plastiques ainsi obtenus se composent essentiellement de polyoléfines c. à d. de polyethylène à basse densité (LDPE) , de polyethylène à haute densitéThe plastic materials thus obtained essentially consist of polyolefins c. to d. low density polyethylene (LDPE), high density polyethylene
(HDPE) et de polypropylène (PP) . Il se peut que ces matériaux comprennent encore une faible proportion de polystyrène (PS) . Ces matériaux sont compatibles entre eux et peuvent être réutilisés tels quels ou bien ils peuvent être soumis à une séparation ultérieure en fonction de leur utilisation et de leur composition.(HDPE) and polypropylene (PP). These materials may still contain a small proportion of polystyrene (PS). These materials are compatible with each other and can be reused as they are or they can be subjected to further separation depending on their use and composition.
Selon un premier mode de réalisation préféré, les matériaux obtenues sont séparés en deux fraction dont l'une se compose principalement de particules de films en matière plastique, tandis que l'autre fraction se compose principalement de particules en provenance d'articles en matière plastique rigide.According to a first preferred embodiment, the materials obtained are separated into two fractions, one of which is mainly composed of plastic film particles, while the other fraction is composed mainly particles from rigid plastic articles.
Les fractions obtenues peuvent avantageusement être soumises à une extrusion suivie d'une granulation de sorte à obtenir des granulés ou des pastilles ou bien les fractions peuvent être broyées en une poudre fine. Ces granulés, pastilles ou poudres peuvent être directement réutilisés pour fabriquer des objets en matière plastique par des procédés conventionnels tels que extrusion, moulage, soufflage etc.The fractions obtained can advantageously be subjected to an extrusion followed by granulation so as to obtain granules or pellets or else the fractions can be ground into a fine powder. These granules, pellets or powders can be directly reused to manufacture plastic objects by conventional methods such as extrusion, molding, blowing etc.
Selon un autre mode de réalisation préféré, les déchets sont déchiquetés en des particules d'environ 35 mm.According to another preferred embodiment, the waste is shredded into particles of approximately 35 mm.
Selon un mode de réalisation avantageux, il est préférable de procéder à un premier déferrai11ement et une extraction des métaux non-ferreux avant de broyer les déchets.According to an advantageous embodiment, it is preferable to carry out a first surge removal and an extraction of the non-ferrous metals before grinding the waste.
Un des avantages principaux de ce procédé est que l'on obtienne automatiquement des produits en matières plastiques de qualité constante et comparable à des produits vierges d'une manière indépendante de la composition de la matière de départ.One of the main advantages of this process is that one obtains automatically plastic products of constant quality and comparable to virgin products independently of the composition of the starting material.
En effet, la fraction film se compose de polyethylène à basse densité (LDPE) presque pur tandis que la fraction issue de produits rigides se compose de polyethylène à haute densité (HDPE) , de polypropylène (PP) et de polystyrène (PS) . Ces produits sont compatibles entre eux et peuvent être utilisés tels quels pour fabriquer de nouveaux emballages de qualité ou bien ils peuvent être séparés en des fractions distinctes. Un des grands avantages de ce procédé est qu'il permet aussi de revaloriser les emballages "TETRA PAK" , c'est-à- dire emballages pour liquides, composés de papier, de matière plastique (PE) et de métal (Al) . Les fibres de papier sont humidifiées lors de l'étape de lavage et sont séparées ultérieurement de leur support par friction. Les fibres de papier peuvent ensuite être récupérées et recyclées. La fraction métallique est récupéré séparément et la matière plastique des "TETRA PAK" se retrouvera finalement dans la fraction "film" des matériaux plastiques triés. Un autre avantage de ce procédé est qu'il ne nécessite pas l'intervention de travail manuel pour effectuer le tri. Il est donc moins cher que les procédés conventionnels.Indeed, the film fraction consists of almost pure low density polyethylene (LDPE) while the fraction from rigid products consists of high density polyethylene (HDPE), polypropylene (PP) and polystyrene (PS). These products are compatible with each other and can be used as is to make new quality packaging or they can be separated into separate fractions. One of the great advantages of this process is that it also makes it possible to revalue "TETRA PAK" packaging, that is to say packaging for liquids, composed of paper, plastic (PE) and metal (Al). The paper fibers are moistened during the washing step and are subsequently separated from their support by friction. The paper fibers can then be recovered and recycled. The metallic fraction is recovered separately and the plastic material of the "TETRA PAK" will ultimately be found in the "film" fraction of the sorted plastic materials. Another advantage of this process is that it does not require the intervention of manual labor to perform the sorting. It is therefore less expensive than conventional methods.
Encore un autre avantage de ce procédé est qu'il permet aussi de revaloriser d'autres produits tels que les métaux magnétiques et non magnétiques, le papier, le PVC et des autres produits qui sont extraits successivement et sélectivement de la chaîne de production.Yet another advantage of this process is that it also makes it possible to revalue other products such as magnetic and non-magnetic metals, paper, PVC and other products which are extracted successively and selectively from the production chain.
Le procédé selon la présente invention a été testé sur des déchets en "sacs jaunes" qui contenaient environ 95% de matières plastiques mélangées. Les 5% restant étaient composés de produits divers tels que métaux, verre, papier, caoutchouc, bois, emballages composites tels que les "TETRA PAK" et produits compostables. La fraction de matières plastiques est constituée de :The method according to the present invention was tested on waste in "yellow bags" which contained about 95% of mixed plastics. The remaining 5% consisted of various products such as metals, glass, paper, rubber, wood, composite packaging such as "TETRA PAK" and compostable products. The plastic fraction consists of:
LDPE 40%,LDPE 40%,
HDPE 23%,HDPE 23%,
PP 5%,PP 5%,
PS 11%,PS 11%,
PVC 16%,PVC 16%,
EPS(polystyrène expansé) 3%EPS (expanded polystyrene) 3%
PET (polyéthylènetéréphtalate) . 2%PET (polyethylene terephthalate). 2%
Il est entendu que cette grille varie en fonction des pays. La fraction de matières plastiques obtenue après triage par le procédé selon l'invention présentait les caractéristiques suivantes: Tableau 1It is understood that this grid varies depending on the country. The fraction of plastics obtained after sorting by the process according to the invention had the following characteristics: Table 1
PROPRIETE NORME UNITE VALEURPROPERTY STANDARD UNIT VALUE
Indice de fluidité DIN 53735 cπβ/10 min 1,3Fluidity index DIN 53735 cπβ / 10 min 1.3
Résistance à la DIN 53455 N/mm-2 14,2 tractionResistance to DIN 53455 N / mm- 2 14.2 tensile
Résistance au DIN 53455 N/mm-2 11,8 déchirementResistance to DIN 53455 N / mm- 2 11.8 tearing
Allongement à la DIN 53455 % 20,7 déchirureElongation to DIN 53455% 20.7 tear
Module E (traction) DIN 53457 N/mm-2 933Modulus E (tensile) DIN 53457 N / mm- 2933
Module de flexion DIN 53457 N/mm-2 811Bending module DIN 53457 N / mm- 2 811
Résistance à la DIN 53461 HDT A °C 50,6 chaleurResistance to DIN 53461 HDT A ° C 50.6 heat
Résistance à la DIN 53461 HDT B °C 68,7 chaleurResistance to DIN 53461 HDT B ° C 68.7 heat
Résistance au choc ISO 179/leU k-T/mm-2 17,1 +23°CImpact resistance ISO 179 / leU kT / mm- 2 17.1 + 23 ° C
Résistance au choc ISO 179/leU kJ/mm2 12,9 0°CImpact resistance ISO 179 / leU kJ / mm 2 12.9 0 ° C
Résistance au choc ISO 179/leU kJ/mm2 12,3 -30°CImpact resistance ISO 179 / leU kJ / mm 2 12.3 -30 ° C
Résistance au choc ISO 179/leA kJ/mm2 7,3 avec entaille +23°CImpact resistance ISO 179 / leA kJ / mm 2 7.3 with notch + 23 ° C
Résistance au choc ISO 179/leA kJ/mm2 4,9 avec entaille 0°CImpact resistance ISO 179 / leA kJ / mm 2 4.9 with notch 0 ° C
Résistance au choc ISO 179/leA kJ/mm2 3,7 avec entaille -30°C dureté Rockwell 3,1Impact resistance ISO 179 / leA kJ / mm 2 3.7 with notch -30 ° C Rockwell hardness 3.1
Avant le broyage, la plupart des métaux magnétiques et des métaux non-magnétiques avaient été séparés des déchets.Before crushing, most magnetic and non-magnetic metals had been separated from the waste.
Contrairement aux systèmes connus, le présent procédé permet de recycler réellement les matériaux plastiques c'est-à-dire de les réutiliser à la même fin. Les objets obtenus à partir des matériaux plastiques recyclés par le présent procédé sont des produits de haute qualité qui peuvent concurrencer les produits fabriqués à partir de matières plastiques vierges. La présente invention propose aussi une installation pour la mise en oeuvre du présent procédé.Unlike known systems, the present process makes it possible to actually recycle plastic materials, that is to say to reuse them for the same purpose. Items obtained from plastic materials recycled by the present process are high quality products which can compete with products made from virgin plastic materials. The present invention also provides an installation for implementing the present method.
L'installation pour la mise en oeuvre de l'invention est caractérisé en ce qu'elle comprend essentiellement : au moins une trémie de réception des déchets, des moyens de désensachage automatique des sacs en matière plastique avec sol vibrant sur tapis de transfert, au moins un broyeur à calibrage, au moins une première station de lavage, des moyens de séparation du PVC, de l'ABS, du PET, du PA, du PC, du sable, des déchets métalliques résiduelles et de tous les autres matériaux à haute densité, des moyens pour séparer les éléments composites par friction, des moyens pour extraire les fibres de papier, et des moyens pour sécher les matériaux plastiques résiduels.The installation for implementing the invention is characterized in that it essentially comprises: at least one hopper for receiving waste, means for automatic bagging of plastic bags with vibrating soil on transfer conveyor, at at least one calibrating mill, at least a first washing station, means for separating PVC, ABS, PET, PA, PC, sand, residual metallic waste and all other materials with high density, means for separating the composite elements by friction, means for extracting the paper fibers, and means for drying the residual plastic materials.
De préférence,, l'installation comprend des moyens pour séparer les matériaux plastiques résiduels en deux fractions.Preferably, the installation comprises means for separating the residual plastic materials into two fractions.
Selon un autre mode de réalisation préféré, l'installation comprend aussi des moyens d'extrusion des matières plastiques triées pour obtenir des granulés ou des pastilles et/ou des moyens pour broyer les matières plastiques triées en une poudre fine.According to another preferred embodiment, the installation also comprises means for extruding the sorted plastics to obtain granules or pellets and / or means for grinding the sorted plastics into a fine powder.
Avantageusement, la séparation du PVC, de l'ABS, du PET, du PA, du PC, du sable, des déchets métalliques résiduelles et de tous les autres matériaux à haute densité s'effectue dans un bassin de décantation.Advantageously, the separation of PVC, ABS, PET, PA, PC, sand, residual metal waste and all other high density materials is carried out in a settling tank.
Selon encore un autre mode de réalisation avantageux, la séparation du papier est effectuée dans une centrifugeuse.According to yet another advantageous embodiment, the separation of the paper is carried out in a centrifuge.
Selon un autre mode de réalisation préférentiel, la séparation des matières plastiques en deux fractions dont l'une se compose essentiellement de films en matériaux plastique et dont l'autre se compose essentiellement de particules en provenance d'articles en matière plastique rigide, est effectuée dans un séparateur à air.According to another preferred embodiment, the separation of plastics into two fractions, one of which essentially consists of films of materials plastic and the other of which consists mainly of particles from rigid plastic articles, is carried out in an air separator.
Préférablement, l'installation comprend aussi un déferrailleur et des moyens pour séparer les métaux non- ferreux, c'est-à-dire non magnétiques.Preferably, the installation also includes an undercarriage and means for separating non-ferrous, that is to say non-magnetic, metals.
Bien entendu, le présent procédé et la présente installation sont aussi utilisables pour trier automatiquement des déchets de matériaux en matière plastique en provenance de l'industrie. En général, ces déchets-là sont plus faciles à traiter car ils contiennent moins de matières polluantes ou organiques.Of course, the present process and the present installation can also be used to automatically sort waste plastic materials from industry. In general, these wastes are easier to treat because they contain less polluting or organic matter.
D'autres caractéristiques et particularités ressortiront de la description détaillée d'un mode de réalisation avantageux, présenté ci-dessous, à titre d'illustration, en référence au dessin annexé dans lequel:Other characteristics and particularities will emerge from the detailed description of an advantageous embodiment, presented below, by way of illustration, with reference to the appended drawing in which:
- la Figure 1 représente une installation de triage de matières plastiques issues de déchets ménagers et/ou industriels. L'installation représenté est destinée à recevoir les déchets emballés dans des sacs. Ces sacs en matière plastique sont déversés sur une trémie de réception 5 et les déchets sont désensaché dans le désensacheur 10 comprenant un sol vibrant 15. Les déchets sont soumis à un déferraillement grossier dans un déferrailleur 20 et le fer récupéré est déversé dans un conteneur 25. Les métaux non- magnétiques sont extraits dans des moyens d'extraction 30 de métaux non-magnétiques et puis récupérés dans un conteneur 35. Les déchets sont ensuite acheminés par une bande de transport 40 dans un broyeur 45. Les déchets broyés sont de nouveau soumis à un déferraillement dans un tambour de déferraillement 50 et le fer récupéré à cette étape est aussi déversé dans le conteneur 25.- Figure 1 shows a sorting facility for plastic materials from household and / or industrial waste. The installation shown is intended to receive waste packaged in bags. These plastic bags are poured onto a receiving hopper 5 and the waste is de-bagged in the de-bagging machine 10 comprising a vibrating soil 15. The waste is subjected to a rough derailment in a de-ironer 20 and the recovered iron is poured into a container 25 The non-magnetic metals are extracted in means 30 for extracting non-magnetic metals and then recovered in a container 35. The waste is then conveyed by a conveyor belt 40 in a crusher 45. The crushed waste is again subjected to a railroad drop in a railroad drum 50 and the iron recovered at this stage is also poured into the container 25.
Les déchets broyés et déferraillés sont ensuite acheminés au moyen d'une bande de transport 55 dans une installation de lavage 60. Les déchets humidifiés sont transportés par une vis sans fin 65 dans un séparateur de papier 70. Lors du passage des déchets dans la vis sans fin 65, les éléments composites sont séparés par friction. Les déchets débarrassés des fibres de papier sont ensuite déversés dans une installation de lavage 75. Dans un décanteur 80, les matières à densité élevée sont extraites et les déchets résiduels sont déversés dans une centrifugeuse 90 moyennant une vis sans fin 85. Après séchage dans un séchoir thermique 95, les déchets résiduels sont traités dans un séparateur à air 100 et la fraction contenant essentiellement de la matière plastique sous forme de film est recueillie dans un premier conteneur 105 tandis que la matière plastique contenant des particules en provenance d'articles en matière plastique rigide est recueillie dans un deuxième conteneur 110. La matière plastique sous forme de film est soumise à une extrusion dans une extrudeuse 115 et ensuite granulée dans une installation de granulation 120, tandis que la matière plastique en provenance d'articles en matière plastique rigide est broyée en une poudre fine dans un broyeur 125. Les deux fractions sont ensuite recueillies séparément dans des "big bags" 130 ou bien dans des silos 135. The crushed and defrapped waste is then conveyed by means of a conveyor belt 55 to a washing installation 60. The humidified waste is transported by an endless screw 65 in a paper separator 70. When the waste passes through the endless screw 65, the composite elements are separated by friction. The waste removed from the paper fibers is then discharged into a washing installation 75. In a decanter 80, the high density materials are extracted and the residual waste is discharged into a centrifuge 90 by means of an endless screw 85. After drying in a thermal dryer 95, the residual waste is treated in an air separator 100 and the fraction containing essentially plastic material in the form of film is collected in a first container 105 while the plastic material containing particles coming from articles of material rigid plastic is collected in a second container 110. The plastic material in the form of a film is subjected to an extrusion in an extruder 115 and then granulated in a granulation installation 120, while the plastic material coming from rigid plastic articles is ground into a fine powder in a 125 mill. The two fractions s are then collected separately in "big bags" 130 or else in silos 135.

Claims

REVENDICATIONS
1. Procédé de triage de matières plastiques issues de déchets ménagers ou industriels, caractérisé par la combinaison des étapes successives suivantes : - déchiquetage des déchets en particules grossières,1. A process for sorting plastics from household or industrial waste, characterized by the combination of the following successive stages: - shredding of waste into coarse particles,
- lavage des déchets résiduels avec humidification des éléments composites, extraction du polychlorure de vinyle (PVC) , de 1'acrylonitrile-butadiène-styrène (ABS) , du polyéthylènetéréphtalate (PET) , du polyacrylate (PA) , du polycarbonate (PC) , du sable, des déchets métalliques résiduels et de tous les autres matériaux à haute densité, séparation par friction des éléments composites, notamment du papier collé sur un support en matière plastique ou en métal,- washing of residual waste with humidification of the composite elements, extraction of polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), polyacrylate (PA), polycarbonate (PC), sand, residual metallic waste and all other high density materials, friction separation of the composite elements, in particular paper glued to a plastic or metal support,
- extraction des fibres de papier,- extraction of paper fibers,
- lavage et séchage des matériaux plastiques obtenus.- washing and drying of the plastic materials obtained.
2. Procédé selon la revendication 1, caractérisé en ce que les matériaux plastiques obtenus sont séparés en deux fractions dont l'une se compose principalement de particules de films en matière plastique, tandis que l'autre fraction se compose principalement de particules en provenance d'articles en matière plastique rigide. 2. Method according to claim 1, characterized in that the plastic materials obtained are separated into two fractions, one of which mainly consists of particles of plastic films, while the other fraction consists mainly of particles from '' rigid plastic articles.
3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les matériaux plastiques obtenus sont extrudés pour obtenir des granulés ou des pastilles.3. Method according to any one of claims 1 or 2, characterized in that the plastic materials obtained are extruded to obtain granules or pellets.
4. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les matériaux plastiques obtenus sont broyés en une poudre fine.4. Method according to any one of claims 1 or 2, characterized in that the plastic materials obtained are ground into a fine powder.
5.Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la taille des particules déchiquetées est d'environ 35 mm. 5. Method according to any one of claims 1 to 4, characterized in that the size of the shredded particles is approximately 35 mm.
6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'on soumet les déchets à un déferraillement avant de les broyer.6. Method according to any one of claims 1 to 5, characterized in that the waste is subjected to a scrap before crushing.
7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'on sépare les éléments métalliques non-magnétiques avant de broyer les déchets.7. Method according to any one of claims 1 to 6, characterized in that the non-magnetic metallic elements are separated before grinding the waste.
8. Installation pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'elle comprend essentiellement: au moins une trémie (5) de réception des déchets, des moyens de désensachage8. Installation for implementing the method according to any one of claims 1 to 7, characterized in that it essentially comprises: at least one hopper (5) for receiving the waste, means for bagging
(10) automatique des sacs en matière plastique avec sol vibrant (15) , au moins un broyeur (45) à calibrage, au moins une première station de lavage (60) , des moyens d'extraction (80) du polychlorure de vinyle (PVC), de 1'acrylonitrile-butadiène-styrène (ABS) , du polyéthylènetéréphtalate (PET) du polyacrylate (PA) , du polycarbonate (PC) , du sable, des déchets métalliques résiduels et de tous les autres matériaux à haute densité, des moyens (85) pour séparer les éléments composites par friction, des moyens (90) pour extraire les fibres de papier et des moyens (95) pour sécher les matières plastiques triées.(10) automatic plastic bags with vibrating soil (15), at least one mill (45) for calibration, at least a first washing station (60), means for extracting (80) polyvinyl chloride ( PVC), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET) polyacrylate (PA), polycarbonate (PC), sand, residual metal waste and all other high density materials, means (85) for separating the composite elements by friction, means (90) for extracting the paper fibers and means (95) for drying the sorted plastics.
9. Installation selon la revendication 8, caractérisée par des moyens (100) pour séparer les matériaux plastiques en deux fractions dont l'une se compose principalement de particules de film en matière plastique, tandis que l'autre fraction se compose principalement de particules en provenance d'articles en matière plastique rigide.9. Installation according to claim 8, characterized by means (100) for separating the plastic materials into two fractions, one of which consists mainly of plastic film particles, while the other fraction consists mainly of particles of from rigid plastic items.
10. Installation selon l'une quelconque des revendications 8 ou 9, caractérisée par des moyens d'extrusion des matières plastiques triées pour obtenir des granulés ou des pastilles.10. Installation according to any one of claims 8 or 9, characterized by means of extruding plastics sorted to obtain granules or pellets.
11. Installation selon l'une quelconque des revendications 8 ou 9, caractérisée par des moyens pour broyer (125) les matières plastiques triées en une poudre fine. 11. Installation according to any one of claims 8 or 9, characterized by means for grinding (125) the plastics sorted into a fine powder.
12. Installation selon l'une quelconque des revendications 8 à 11, caractérisée en ce que la séparation du PVC de 1'acrylonitrile-butadiène-styrène (ABS), du polyéthylènetéréphtalate (PET) du polyacrylate (PA) , du polycarbonate (PC) , du sable, des déchets métalliques résiduels et de tous les autres matériaux à haute densité, s'effectue dans un bassin de décantation (80).12. Installation according to any one of claims 8 to 11, characterized in that the separation of PVC from acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET) from polyacrylate (PA), polycarbonate (PC) , sand, residual metal waste and all other high density materials, is carried out in a settling tank (80).
13. Installation selon l'une quelconque des revendications 8 à 12, caractérisée en ce que la séparation du papier est effectuée dans une centrifugeuse (90) .13. Installation according to any one of claims 8 to 12, characterized in that the separation of the paper is carried out in a centrifuge (90).
14. Installation selon l'une quelconque des revendications 8 à 13, caractérisée en ce que la séparation des matières plastiques en deux fractions dont l'une se compose essentiellement de films en matériaux plastique et dont l'autre se compose essentiellement de particules en provenance d'articles en plastique rigide est effectuée dans un séparateur à air (100) .14. Installation according to any one of claims 8 to 13, characterized in that the separation of plastics into two fractions, one of which consists essentially of plastic films and the other of which consists essentially of particles from of rigid plastic articles is carried out in an air separator (100).
15. Installation selon l'une quelconque des revendications 8 à 14, caractérisée par un déferrailleur (20) et des moyens d'extraction des métaux non-ferreux (30) . 15. Installation according to any one of claims 8 to 14, characterized by a derailer (20) and means for extracting non-ferrous metals (30).
PCT/EP1994/002944 1993-09-15 1994-09-03 Method and plant for sorting plastic materials from household and industrial refuse WO1995007810A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU77399/94A AU7739994A (en) 1993-09-15 1994-09-03 Method and plant for sorting plastic materials from household and industrial refuse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU88408A LU88408A1 (en) 1993-09-15 1993-09-15 Method and installation for sorting plastics from household and industrial waste
LU88408 1993-09-15

Publications (1)

Publication Number Publication Date
WO1995007810A1 true WO1995007810A1 (en) 1995-03-23

Family

ID=19731443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/002944 WO1995007810A1 (en) 1993-09-15 1994-09-03 Method and plant for sorting plastic materials from household and industrial refuse

Country Status (3)

Country Link
AU (1) AU7739994A (en)
LU (1) LU88408A1 (en)
WO (1) WO1995007810A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1764166A1 (en) * 2005-09-16 2007-03-21 Sergio Fregonese Apparatus and process for recovering and washing waste materials of various kinds for obtaining ground insulating materials
WO2020035476A1 (en) 2018-08-14 2020-02-20 Rossmann Method for treating paper end-products and treatment facility employing the said method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198662A (en) * 1986-12-04 1988-06-22 Andritz Ag Maschf A process and a device for the treatment of mixed waste such as refuse or its fractions for the recovery of plastics sheet material scrap
EP0359106A2 (en) * 1988-09-12 1990-03-21 HERBOLD GMBH Maschinenfabrik Method of recovering and recycling polluted plastics
WO1990014890A1 (en) * 1989-06-05 1990-12-13 Rejector Ab Method and device for the treatment of waste
EP0493720A2 (en) * 1990-12-29 1992-07-08 PWA INDUSTRIEPAPIER GmbH Method for reprocessing thermoplastic coated packing materials and thermoplastic material for further manufacture
WO1992016686A1 (en) * 1991-03-21 1992-10-01 Advanced Recycling Technologies, Inc. Method for recycling plastic coated paper product waste and polymeric film
EP0557816A2 (en) * 1992-02-26 1993-09-01 Joachim Kopischke Method and plant for separating comminuted plastic materials of dissimilar chemical composition and different density

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198662A (en) * 1986-12-04 1988-06-22 Andritz Ag Maschf A process and a device for the treatment of mixed waste such as refuse or its fractions for the recovery of plastics sheet material scrap
EP0359106A2 (en) * 1988-09-12 1990-03-21 HERBOLD GMBH Maschinenfabrik Method of recovering and recycling polluted plastics
WO1990014890A1 (en) * 1989-06-05 1990-12-13 Rejector Ab Method and device for the treatment of waste
EP0493720A2 (en) * 1990-12-29 1992-07-08 PWA INDUSTRIEPAPIER GmbH Method for reprocessing thermoplastic coated packing materials and thermoplastic material for further manufacture
WO1992016686A1 (en) * 1991-03-21 1992-10-01 Advanced Recycling Technologies, Inc. Method for recycling plastic coated paper product waste and polymeric film
EP0557816A2 (en) * 1992-02-26 1993-09-01 Joachim Kopischke Method and plant for separating comminuted plastic materials of dissimilar chemical composition and different density

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1764166A1 (en) * 2005-09-16 2007-03-21 Sergio Fregonese Apparatus and process for recovering and washing waste materials of various kinds for obtaining ground insulating materials
WO2020035476A1 (en) 2018-08-14 2020-02-20 Rossmann Method for treating paper end-products and treatment facility employing the said method

Also Published As

Publication number Publication date
LU88408A1 (en) 1995-04-05
AU7739994A (en) 1995-04-03

Similar Documents

Publication Publication Date Title
US9469049B2 (en) Method and installation for separating individual valuable materials from mixed, in particular milled, plastic waste
RU2124438C1 (en) Method of producing enriched plastic product from varnished plastic parts and thermoplastic synthetic recyclate from varnished particles of plastic materials, in particular, those containing polypropylene
EP2296858B1 (en) Method for recycling composite material
US20140220280A1 (en) Process of recycling plastics, products and applications thereof
US20120245257A1 (en) Pellet From Recycled Waste
JPH07501277A (en) Composite product preparation method
KR20010040338A (en) Reclaiming waste carpet materials
CA2737858C (en) Process for the selective separation, and for the simultaneous increase in purity, of spent, fragmented, organic materials by means of aqueous media having chosen densities
JP4817983B2 (en) Recycling waste plastic to thin products
US20230173712A1 (en) Method for recycling a transfer product
JPH07505587A (en) Method and apparatus for collecting and sorting waste containing stretched synthetic materials
JP2003507164A (en) Method of removing paint from polymer material
CA2491130C (en) Method for preconcentration of organic synthetic materials derived from shredding of end-of-life durable goods
Makenji Mechanical methods for recycling waste composites
WO1995007810A1 (en) Method and plant for sorting plastic materials from household and industrial refuse
EP1791898A1 (en) Method for recycling the waste of printed polyolefinic films by compounding extrusion
AU2017200716A1 (en) System and method for processing mixed waste
US11584839B2 (en) Process for the production of an additive for bituminous conglomerates with high mechanical performances
WO2023011948A1 (en) Method for shredding and recycling used big-bags and facility for implementing the method
BE1013950A3 (en) PROCESS FOR TREATING MIXTURES OF WASTE RICH IN PLASTIC SHEETS.
JP2024519632A (en) Plastic recycling method for treating plastic waste
WO2022234345A1 (en) Systems and methods for recycling plastic material
EA045643B1 (en) METHOD FOR OBTAINING ADDITIVE FOR BITUMEN CONGLOMERATES WITH HIGH MECHANICAL CHARACTERISTICS AND COMPOSITION OF ADDITIVE

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR BY CA CH CN CZ DE DK ES FI GB HU JP KP KR KZ LK LV MG MN MW NL NO NZ PL PT RO RU SD SE SK UA UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA