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1. WO2007031255 - PROCESS AND APPARATUS FOR HANDLING PLASTICS MATERIAL AND DEVICE FOR CONVEYING AND SIMULTANEOUSLY HEATING MATERIAL, IN PARTICULAR PLASTICS PARTS

Publication Number WO/2007/031255
Publication Date 22.03.2007
International Application No. PCT/EP2006/008832
International Filing Date 11.09.2006
IPC
B29B 17/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
17Recovery of plastics or other constituents of waste material containing plastics
B29B 13/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13Conditioning or physical treatment of the material to be shaped
02by heating
B29B 13/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13Conditioning or physical treatment of the material to be shaped
06by drying
F26B 3/34 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
26DRYING
BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
3Drying solid materials or objects by processes involving the application of heat
32by development of heat within the materials or objects to be dried
34by using electrical effects
F26B 3/30 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
26DRYING
BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
3Drying solid materials or objects by processes involving the application of heat
28by radiation, e.g. from the sun
30from infra-red-emitting elements
B29B 13/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13Conditioning or physical treatment of the material to be shaped
08by using wave energy or particle radiation
CPC
B29B 13/021
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13Conditioning or physical treatment of the material to be shaped
02by heating
021Heat treatment of powders
B29B 13/065
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13Conditioning or physical treatment of the material to be shaped
06by drying
065of powder or pellets
B29B 13/08
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13Conditioning or physical treatment of the material to be shaped
08by using wave energy or particle radiation
B29B 17/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
17Recovery of plastics or other constituents of waste material containing plastics;
B29C 2035/0822
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
02Heating or curing, e.g. crosslinking or vulcanizing ; during moulding, e.g. in a mould
08by wave energy or particle radiation
0805using electromagnetic radiation
0822using IR radiation
B29K 2067/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2067Use of polyesters ; or derivatives thereof; , as moulding material
Applicants
  • SCHOELLER PET RECYCLING GMBH [DE]/[DE] (AllExceptUS)
  • RÜDIGER, Fredl [DE]/[DE] (UsOnly)
  • SCHOELLER, Martin [DE]/[DE] (UsOnly)
Inventors
  • RÜDIGER, Fredl
  • SCHOELLER, Martin
Agents
  • BOCKHORNI, Josef
Priority Data
10 2005 043 526.213.09.2005DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND VORRICHTUNG ZUM BEHANDELN VON KUNSTSTOFFMATERIAL UND EINRICHTUNG ZUM FÖRDERN UND GLEICHZEITIGEN HEIZEN VON MATERIAL, INSBESONDERE KUNSTSTOFFTEILEN
(EN) PROCESS AND APPARATUS FOR HANDLING PLASTICS MATERIAL AND DEVICE FOR CONVEYING AND SIMULTANEOUSLY HEATING MATERIAL, IN PARTICULAR PLASTICS PARTS
(FR) PROCEDE ET DISPOSITIF POUR LE TRAITEMENT DE MATERIAU PLASTIQUE, ET DISPOSITIF DE TRANSPORT ET DE CHAUFFAGE SIMULTANES DU MATERIAU, EN PARTICULIER DE PIECES EN MATIERE PLASTIQUE
Abstract
(DE)
Die vorliegende Erfindung stellt ein Verfahren und eine Vorrichtung zum Behandeln von Kunststoffen, wie Polyester, insbesondere zum Recyceln von Polyethylenterephthalat (PET), z.B. aus Getränkeflaschen, vorzugsweise zur Herstellung von lebensmittelechtem PET, und insbesondere zur Umwandlung von amorphem Kunststoffmaterial, das beispielsweise in Form von Granulat oder Flakes vorliegt, in kristallines Kunststoffmaterial, bereit. Außerdem wird eine Einrichtung (1) zum Fördern und gleichzeitigen Heizen von Material, insbesondere von Kunststoffteilen, wie Kunststoffflakes und -partikel, bestehend aus einer Förderstrecke, Mitteln zum Fördern, Mitteln zum Herstellen (2, 5) eines Material-Förderatmosphären-Gemisches und einer Quelle (3) für die Bestrahlung mit elektromagnetischer Strahlung, insbesondere Infrarotstrahlung aufgezeigt, die unter anderem als Mittel zum Vortrocknen, zum Kristallisieren und vor der Feststoffnachkondensation zum Vorwärmen eingesetzt werden kann. Mit Hilfe der vorliegenden Erfindung lässt sich beispielsweise bei zumindest gleich bleibend hoher Qualität lebensmittelechtes PET-Granulat erzeugen, wobei das bisherige Verfahren vereinfacht und insbesondere dessen apparativer Aufwand verringert, die Kapazität bestehender Anlagen erhöht und Energie eingespart werden kann.
(EN)
The present invention provides a process and an apparatus for handling plastics, such as polyesters, in particular for recycling polyethylene terephthalate (PET), for example from beverage bottles, preferably for the production of PET suitable for food contact applications, and in particular for the conversion of amorphous plastics material that is present for example in the form of granules or flakes into crystalline plastics material. Furthermore, a device (1) for conveying and simultaneously heating material, in particular plastics parts, such as plastics flakes and particles, comprising a conveying zone, means for conveying, means for producing (2, 5) a mixture of a material-conveying atmosphere and a source (3) for irradiating with electromagnetic radiation, in particular infrared radiation, is presented, which device can be used inter alia as a means for predrying, for crystallizing and, before the post-condensation of solids, for preheating. With the aid of the present invention, PET granules suitable for food contact applications can be produced while at the same time maintaining the same high level of quality, it being possible for the previous process to be simplified and, in particular, the apparatus involved to be reduced in its complexity, the capacity of existing installations to be increased and energy to be saved.
(FR)
L'invention concerne un procédé et un dispositif pour le traitement de matières plastiques, telles que le polyester, en particulier, pour le recyclage de polyéthylènetéréphtalate (PET), par exemple, à partir de récipients pour boisson, de préférence, pour la production de PET qualité alimentaire, et notamment, pour la transformation de matériau plastique amorphe, se présentant par exemple sous forme de granulés ou de flocons, en matériau plastique cristallin. En outre, l'invention concerne un dispositif (1) pour le transport et, en même temps, pour le chauffage de matériaux, en particulier d'éléments en matière plastique, tels que des flocons et des particules en matière plastique, dispositif comprenant un parcours de transport, des moyens pour le transport, des moyens pour la production (2, 5) d'un mélange sous atmosphère de transport du matériau, et une source (3) d'irradiation par un rayonnement électromagnétique, en particulier par rayonnement infrarouge, et pouvant être utilisé entre autre, comme moyens de pré-séchage, de cristallisation, ainsi que de préchauffage, avant condensation ultérieure de matière solide. L'invention permet ainsi de produire par exemple, des granulés de PET de qualité alimentaire demeurant constante, de simplifier le procédé existant et, notamment, de réduire les moyens à utiliser pour l'appareillage, à augmenter la capacité des installations existantes tout en réalisant des économies d'énergie.
Also published as
Latest bibliographic data on file with the International Bureau