WO2001038012A2 - Procede et dispositif de tri automatique de pellicules selon l'espece - Google Patents

Procede et dispositif de tri automatique de pellicules selon l'espece Download PDF

Info

Publication number
WO2001038012A2
WO2001038012A2 PCT/DE2000/003806 DE0003806W WO0138012A2 WO 2001038012 A2 WO2001038012 A2 WO 2001038012A2 DE 0003806 W DE0003806 W DE 0003806W WO 0138012 A2 WO0138012 A2 WO 0138012A2
Authority
WO
WIPO (PCT)
Prior art keywords
films
removal
material properties
air flow
detected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2000/003806
Other languages
German (de)
English (en)
Other versions
WO2001038012A3 (fr
Inventor
Christoph Bach
Lutz Priese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Der Gruene Punkt Duales System Deutschland AG
Original Assignee
Der Gruene Punkt Duales System Deutschland AG
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 Der Gruene Punkt Duales System Deutschland AG filed Critical Der Gruene Punkt Duales System Deutschland AG
Priority to AU21496/01A priority Critical patent/AU2149601A/en
Publication of WO2001038012A2 publication Critical patent/WO2001038012A2/fr
Publication of WO2001038012A3 publication Critical patent/WO2001038012A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • 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
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • 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
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
    • B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means

Definitions

  • the invention relates to a method for the automatic sorting of films, in which the material properties of the films are detected by means of an NIR measuring device and the separation takes place as a function of the result of the spectroscopy.
  • the invention also relates to a device with which the method can be carried out.
  • “Foils” are to be understood to mean in particular plastic foils, but also metal foils, metallized and metal-coated plastic foils, such as gift wrapping foils, and papers such as are collected, for example, in the form of light packaging in the yellow sack or the yellow bin from the collection of the dual system.
  • Films and lightweight packaging cannot yet be sorted optically fully automatically. They are usually separated from the other fractions by means of an air classifier or manually. It is currently not possible to separate films according to type from the material.
  • WO 99/26734 describes a separation system in which all objects on a conveyor belt are analyzed by color image analysis for their visual properties and by NIR spectroscopy for their material properties, and are then automatically blown out into several individually adjustable fractions.
  • conveyor speeds of around 2.5 m / s are achieved.
  • paper, tetrapack, polystyrene, polyethylene, polyethylene terephthalate, polypropylene, silicone cartridges and other hollow bodies can be sorted out, for example.
  • NIR spectroscopy has proven itself in the automatic sorting of packaging. With their help, it is possible to distinguish different materials from each other, which only enables a sort-specific separation.
  • the object to be examined is irradiated with white light, depending on which material it is made of, certain wavelength ranges of the light are absorbed.
  • the spectra of packaging materials can be distinguished very well from one another.
  • Foils and light packaging are typically very light, but relatively large. At higher conveyor belt speeds, air resistance already affects them and causes movements of the objects to be sorted on the conveyor belt. Such movements, however, complicate a separation technique based on the principle of WO 99/26734 or even make it impossible if the color image recognition, NIR spectroscopy and separation take place at different locations and there are several uncontrolled moving objects on the conveyor belt.
  • the foils are transported in an air flow at a known flow speed through a three-dimensional measuring range of the NIR measuring device and are detected there, and are removed from the air flow depending on the measuring range depending on the detected material properties.
  • the invention therefore releases itself from the idea of arranging the objects to be analyzed on a conveyor belt, but makes use of the fact that the future location of an identified object can be predicted in the case of a specific air flow. Experiments can determine in advance which air flow is sufficient. The flow velocity of the air flow is also determined. Since the identification section, namely the measuring range, lies in front of the separation section, the identified foils must be tracked during transport to the separation section. For this purpose, it is advantageous if there is only a short distance between the measuring range and the tapping point. According to an advantageous embodiment of the method, the air flow is divided into a plurality of partial air flows, foils with the same recorded material properties being introduced into the same partial air flow.
  • the device according to the invention for the automatic sorting of films has an NIR measuring device for recording the material properties of the films, at least one removal point for films and a separating device which, depending on the recorded material properties of a film, directs it to one of these removal points which is assigned to the material , on, and is characterized by a wind tunnel in which there is an air flow with a known flow velocity, and by a three-dimensional NIR measuring area in the wind tunnel, the at least one removal point for foils with detected material properties being arranged in a location offset from the NIR measuring area in the wind tunnel.
  • removal points are preferably removal channels which branch off from the wind tunnel, the control device guiding foils with the same detected material properties into the same removal channel. Films that are not recognized can be fed into a separate removal channel and disposed of from there.
  • control device controls blowing nozzles that blow foils with detected material properties to assigned removal points or into assigned removal channels.
  • control device can control guide plates, by means of which the air flow is to be directed in such a way that the foils fly to the assigned removal points or into assigned removal channels.
  • the wind tunnel in the three-dimensional measuring range is particularly preferably provided with a reflection wall, for example a reflective tube.
  • the starting material is a film material to be sorted, as is typically the case with wind sifters after the previous screening process.
  • Large films such as the yellow sacks themselves or films from the yellow sack or from the construction or renovation of several buildings Square meters of space, which can also come from incorrect casts, for example, must be sorted out beforehand.
  • the foils must be safely inserted into the wind tunnel.
  • the wind tunnel 10 is shown schematically as a vertical cylindrical tube.
  • the wind tunnel 10 opens into two sampling channels 12, 14.
  • the number of sampling channels depends on the number of fractions to be separated, and is therefore not limited to two.
  • the air flow L is generated by one or more fans, not shown in the drawing.
  • This fan or the fans are expediently located behind cyclones or other separators which are arranged at the end of each removal channel 12, 14 for film separation.
  • the separators are also not shown in the drawing.
  • the air flow L in the wind tunnel 10 is thus divided into two partial air flows L1, L2 in the extraction channels 12 and 14, according to the embodiment.
  • the flow rate should be far greater than 10 m / s, for example 20 m / s, with the aim of achieving the highest possible throughput of foils, in which, for example, more than 10 foils are introduced individually per second into the measuring range to be described later .
  • the flow or air flow depends on the diameter of the pipe system with which the wind tunnel and extraction channels are constructed. Pipe diameters on the order of 100 mm to 450 mm for wind tunnel 10 have proven to be suitable for certain film fractions. It is advantageous if the tube diameter is approximately the same or slightly larger than the diameter of the objects, since these will not be in the tube can overtake. Pre-shredding of the films for size homogenization is therefore advisable. With large pipe diameters it can be important to keep the flow laminar.
  • the material recognition of the foils which are carried through the wind tunnel 10 with the air flow L is determined by means of an NIR measuring device 20 which scans a three-dimensional measuring range 26 with a sensor 22. It is therefore not necessary to track the measuring spot.
  • the wind tunnel 10 is provided with a reflective tube 28 in the measuring area 26.
  • a control device 30 correlates the evaluated measurements with the expected position of the film flowing through the wind tunnel 10, which in the meantime flies over a short distance W, which can be, for example, 50 cm or less, in order to blow blowers 32 via the control lines SI and S2, 34 and / or guide plates 36 and 38 act in such a way that the identified film is introduced into the correct removal channel 12 or 14.
  • a possibly rigid guide plate projecting into the wind tunnel 10 can be arranged, which ensures that the foils are carried close to the sensor 22.

Landscapes

  • Sorting Of Articles (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

L'invention concerne un procédé et un dispositif de tri automatique de pellicules selon l'espèce. Les pellicules sont transportées dans un courant d'air à une vitesse de courant connue au travers d'une zone de mesure tridimensionnelle d'un appareil de mesure à spectre en proche infrarouge (NIR), enregistrées au niveau de la zone de mesure, puis prélevées du courant à distance de la zone de mesure, en fonction de la constitution enregistrée du matériau.
PCT/DE2000/003806 1999-11-25 2000-10-26 Procede et dispositif de tri automatique de pellicules selon l'espece Ceased WO2001038012A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21496/01A AU2149601A (en) 1999-11-25 2000-10-26 Method and device for automatically sorting films according to type

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19956624.0 1999-11-25
DE1999156624 DE19956624A1 (de) 1999-11-25 1999-11-25 Verfahren und Vorrichtung zum automatischen sortenreinen Trennen von Folien

Publications (2)

Publication Number Publication Date
WO2001038012A2 true WO2001038012A2 (fr) 2001-05-31
WO2001038012A3 WO2001038012A3 (fr) 2002-01-17

Family

ID=7930231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003806 Ceased WO2001038012A2 (fr) 1999-11-25 2000-10-26 Procede et dispositif de tri automatique de pellicules selon l'espece

Country Status (4)

Country Link
AR (1) AR026564A1 (fr)
AU (1) AU2149601A (fr)
DE (1) DE19956624A1 (fr)
WO (1) WO2001038012A2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156367A3 (fr) * 1984-03-27 1986-12-30 Esm International, Inc. Procédé et appareil de triage
US4915547A (en) * 1987-02-27 1990-04-10 Molins Plc Article transport system
DE19751862C2 (de) * 1997-11-22 2002-09-19 Lutz Priese Verfahren und Vorrichtung zum Identifizieren und Sortieren von bandgeförderten Objekten

Also Published As

Publication number Publication date
AU2149601A (en) 2001-06-04
WO2001038012A3 (fr) 2002-01-17
AR026564A1 (es) 2003-02-19
DE19956624A1 (de) 2001-06-07

Similar Documents

Publication Publication Date Title
EP1030740A1 (fr) Procede et dispositif pour l'identification et le tri d'objets transportes sur bande
EP2859963A1 (fr) Dispositif et procédé destinés à trier des produits en vrac
DE3726808A1 (de) Verfahren zur muellsortierung und muellsortiervorrichtung
EP0530934A1 (fr) Procédé pour extraire des fractions pures de maitières plastiques
EP1930090B1 (fr) Procédé et dispositif d'élimination de corps étrangers
EP2700456A1 (fr) Agencement et procédé de tri de matière synthétique
DE102009007481A1 (de) Fördersystem zum Transport von Materialien, insbesondere von Schüttgut
DE19531057C1 (de) Vorrichtung zum Ausscheiden von Verunreinigungen aus einem Wertstoffgut
EP0909226B1 (fr) Procede et dispositif pour identifier des corps etrangers dans un courant fibreux comprenant essentiellement des fibres textiles
EP0328126A2 (fr) Méthode et dispositif pour trier des déchets de verre
EP0461616B1 (fr) Procédé et dispositif de tri de déchets de verre
DE19545240A1 (de) Verfahren und Vorrichtung zum Trennen von Materialgemischen nach der Sorte
EP2805780A1 (fr) Sas d'épierrage doté de dépoussiéreur pneumatique
EP2800619B1 (fr) Séparateur du type cyclone, en particulier pour la gestion des déchets
EP1568288A1 (fr) Procédé et appareil pour enlever des corps étrangers du tabac
DE10123304A1 (de) Vorrichtung und Verfahren zur Sortierung eines Abfallgemisches
WO2001038012A2 (fr) Procede et dispositif de tri automatique de pellicules selon l'espece
DE4413288C2 (de) Vorrichtung zur Selektion von Bauschutt
DE102009046349A1 (de) Ausschleusstation für Kartonzuschnitte und Verfahren zum Herstellen und Ausschleusen von Kartonzuschnitten
DE9417627U1 (de) Müllvorsortierer
EP0873797A2 (fr) Procédé de tri de déchets de papier
DE4316422C1 (de) Verfahren und Vorrichtung zum Sortieren von Abfallgemischen
WO1996006690A2 (fr) Installation de tri (tri par couleurs 'fsa'/tri prealable 'vs'/separation par air 'ws') utilisee pour trier des corps creux en verre, de preference du verre recycle
CH656328A5 (de) Verfahren zum sichten von schuettgut und vorrichtung zur durchfuehrung des verfahrens.
DE4432719A1 (de) Vorrichtung zur Behandlung von Wertstoffgemischen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ CZ DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ CZ DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP