EP0426893B1 - Procédé et dispositif de tri - Google Patents

Procédé et dispositif de tri Download PDF

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Publication number
EP0426893B1
EP0426893B1 EP89120714A EP89120714A EP0426893B1 EP 0426893 B1 EP0426893 B1 EP 0426893B1 EP 89120714 A EP89120714 A EP 89120714A EP 89120714 A EP89120714 A EP 89120714A EP 0426893 B1 EP0426893 B1 EP 0426893B1
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EP
European Patent Office
Prior art keywords
glass
light
intensity
sorted
accordance
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.)
Expired - Lifetime
Application number
EP89120714A
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German (de)
English (en)
Other versions
EP0426893A1 (fr
Inventor
Heinz Prof. Dr.-Ing. Hoberg
Andreas Dipl.-Ing. Reichert
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to AT89120714T priority Critical patent/ATE111781T1/de
Priority to DE58908420T priority patent/DE58908420D1/de
Priority to EP89120714A priority patent/EP0426893B1/fr
Publication of EP0426893A1 publication Critical patent/EP0426893A1/fr
Application granted granted Critical
Publication of EP0426893B1 publication Critical patent/EP0426893B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation

Definitions

  • the invention relates to a method for sorting glass granules and / or glass containers, wherein a piece of the material to be sorted is irradiated from one side with a broad light spectrum, in particular with white light, the intensities of the radiation being separated from the opposite side for regions of two different wavelengths light emerging from the piece of the material to be sorted is measured and the difference in the intensities is determined, and fractions of the material to be sorted are separated and removed according to the result of the intensity measurement.
  • the invention also relates to a device for sorting glass granules and / or glass containers, a light source being arranged on a conveying means for the sorted goods, in particular on an acceleration channel, the light to be passed through the sorted goods of different wavelengths are arranged, and the detectors are connected to a sorting device via an evaluation unit, which contains a subtracting unit for forming the difference in light intensities.
  • a sorting system which is suitable for sorting sorted goods according to their permeability to light of different colors is known from DE-OS 34 45 428.
  • To sort glass it is fed to a singling belt, which is assigned a colored glass sorting device is.
  • the sorting device has a light barrier that shines through glass pieces.
  • the associated light source emits white light.
  • the light barrier has several detectors. At least three detectors are available, which are sensitive to white, brown or green light. All detectors are connected to wipers via a downstream control system, which sheds the supplied material classified according to color.
  • the known device provides for the sorting of glass for each type of glass, colorless, brown or green, a special light converter or detector.
  • a sorting system is also known from DE OS 37 31 402.
  • the permeability of the material to be sorted for ultraviolet or violet light, ie for a broad frequency band, is determined using a filter.
  • the color of the goods to be sorted is inferred from the degree of permeability.
  • a method for sorting agricultural products is known from GB 2 133 531.
  • Color filters are used for the light reflected on the products in order to sort the products according to their color. Because of the wide spectrum of a filter, a fast throughput, as is necessary for glass sorting, is not possible.
  • a method for sorting agricultural products is also known from DE-AS 1 797 327.
  • an apple is illuminated with light.
  • the intensity of the emerging light is then measured for wavelengths that are both above 500 nanometers and the difference in the measured intensities is examined.
  • GB 2 133 531 and DE-AS 1 797 327 contain methods for sorting agricultural products which, moreover, are not in the field of view of the person skilled in the art who is supposed to sort glass.
  • the invention was based on the object of specifying a method and a device for sorting glass granules and / or glass containers which manage with a few detectors and can be operated at high throughput. Only two detectors should be necessary to sort the sorted goods into four components, opaque pieces of waste, colorless glass, brown glass and green glass. In addition, it should not be necessary to integrate the detected light for each piece of waste, so that a high throughput during sorting is ensured.
  • the first-mentioned object is achieved according to the invention in that the first light intensity in the range of a wavelength greater than 500 nanometers and the second light intensity in the range of a wavelength less than 500 nanometers is measured in that the difference in the intensities with a first threshold value and the intensity for the range of the smaller wavelength are compared with a second threshold value, that if both threshold values are exceeded, a first fraction (green glass) is separated, that if the second threshold value is undershot, a second fraction (brown glass) is separated, and that otherwise a third fraction ( colorless glass) is separated.
  • the third fraction (colorless glass) is separated off. This has the advantage that the third fraction contains no foreign substances.
  • the second fraction (brown glass) is separated off when the first threshold value is exceeded and at the same time the value falls below the second threshold value.
  • This fraction then only includes brown glass. This ensures that brown glass is reliably sorted out. This is due to the fact that brown glass almost does not transmit light with a wavelength below 500 nanometers, while light with a wavelength over 500 nanometers is transmitted.
  • a fraction of items to be sorted is separated and removed, in which the difference in the light intensity values and also the value of the light intensity at the first wavelength are greater than the threshold values.
  • This fraction contains green glass.
  • one fraction can be the remainder remaining after separation of two fractions.
  • two light intensities are measured at a first wavelength of 450 nm and at a second wavelength of 550 nm.
  • the light intensity for green glass is a minimum, while for 550 nm it is significantly higher.
  • the light intensity for 450 nm is almost zero, while for 550 nm there is a clear intensity.
  • This fraction can include either colorless or brown or green glass.
  • Sorting is also possible if the light intensity is only measured for one wavelength. Then the measured intensity value provides information about the type of glass.
  • the material to be sorted For further sorting of the material to be sorted, it is irradiated with infrared light from one side, for example before or after irradiation with white light, and the intensity of the infrared light is measured on the opposite side. Another fraction is removed if the intensity is less than a threshold. This fraction then consists of all components that are not made of glass, such as. B. ceramics.
  • the sorting goods that do not belong to this fraction and are not recognized as transparent (colorless), green or brown in the main sorting process then consist exclusively of glass of a different color or of glass that is either heavily soiled or has paper labels. This currently opaque glass can be cleaned for further sorting.
  • Metal parts can be removed from the goods to be sorted using suitable means, for example a magnet, even before the sorting described.
  • suitable means for example a magnet, even before the sorting described.
  • the rest which no longer contains glass, can also be sorted further.
  • Sorted goods are irradiated with only one light source and the light that may have emerged from the sorted goods is divided and distributed to at least two detectors.
  • this has the advantage that only one light source is required.
  • there is a particular advantage in that fluctuations in the intensity of the emitted light can have no influence on the method. If two light sources were used, different and even opposite fluctuations in the emitted light intensities would be detrimental to the method.
  • the detectors are connected to a control unit in which the intensity difference is also formed.
  • a compressed air flow is controlled by this control unit, for example, which separates a certain fraction from the sorted goods and conveys them to a certain container.
  • the recognized pieces can also be separated in another suitable manner, for example with a controllable mechanical deflection device.
  • Such a device is particularly suitable for glass containers. Several separating devices for different types of glass can also be arranged one behind the other.
  • the second object is achieved according to the invention in that the first detector is sensitive to light of a wavelength greater than 500 nanometers and the second detector is sensitive to light of a wavelength less than 500 nanometers in that the evaluation unit comparators for comparing the difference in light intensities with a contains the first threshold value and for comparing the intensity for the region of the smaller wavelength with a second threshold value and that these comparators are connected to the sorting device via a link of the evaluation unit.
  • the sorting device comprises, for example, a compressed air valve which is arranged at the end of the conveying means and to which a container is assigned. After it has been recognized that a certain piece from the material to be sorted is to be assigned to the fraction to be separated, the compressed air valve is actuated, as a result of which the piece falls into the container assigned to the fraction.
  • the compressed air valve is e.g. B. connected to a compressed air tank or to a compressor. Any other sorting device can also be combined with the sorting device according to the invention.
  • only one light source is available for irradiating the sorted material and a beam splitter is arranged opposite the light source, the output beams of which are assigned to the detectors. This means that it is not necessary to compare different light sources.
  • the detectors are, for example, photodiodes, which can be preceded by interference filters. Good results are achieved with such an arrangement.
  • an infrared light source to which an opposite infrared detector is assigned can be arranged on the conveyor in the conveying direction in front of or behind the light source.
  • This detector is also connected to a sorting device via a control unit or evaluation unit.
  • the sorting material which is opaque to visible light consists of soiled pieces of glass or pieces of glass pasted with paper labels. After separating the fraction that does not contain glass, as well as colorless, brown and green glass, opaque glass and glass of a different color than brown or green currently remain.
  • the advantage achieved that with only a maximum of two detectors for visible light of certain wavelengths it is possible to separate a fraction from the sorted material, which can consist of colorless glass, brown glass or green glass.
  • the sorting can take place at high speed since only one wavelength is measured at a time.
  • the device for carrying out the method only requires a maximum of two detectors for the optional detection of three types of glass.
  • Additional pre-sorting with infrared light can be used to separate non-glass items. After the later separation of colorless, brown and green glass, all that remains is glass or glass of a different color, which is opaque because of dirt or because of labels. This glass can be mixed into the green glass without damage for further processing. All glass waste is therefore available for suitable further processing and reuse.
  • a device for sorting solid items according to FIG. 1 has a storage bunker 1, which is followed by a separating belt 2 and an acceleration trough 3.
  • the items to be sorted are located in the storage bunker 1.
  • the separating belt 2 is, for example, tapered and provided with a narrow outlet.
  • a light source 4 is arranged on the acceleration trough 3 and irradiates the individual pieces with white light.
  • Detectors 5 and 6 are arranged on the acceleration channel 3 opposite the light source 4. These register the light intensities behind each piece that is irradiated by the light source 4.
  • the first detector 5 measures the light intensity at the wavelength 450 nm.
  • the second detector 6 measures the light intensity at the wavelength 550 nm.
  • the two detectors 5 and 6 are connected to an evaluation unit 7, which can be a process computer.
  • a compressed air valve 8 in a line 10 starting from compressed air tanks 9 is controlled by the evaluation unit 7.
  • the line 10 ends at a compressed air nozzle 11.
  • the outlet for the compressed air jet of the compressed air nozzle 11 is aligned with the end of the acceleration channel 3.
  • the compressed air valve 8 When the compressed air valve 8 is open, the pieces conveyed via the acceleration trough 3 are thrown into a first container 12 by the air flow.
  • the compressed air valve 8 When the compressed air valve 8 is closed, the pieces enter a second container 13 which is arranged directly below the end of the acceleration channel 3. If the detectors 5 and 6 recognize components of a fraction of the material to be separated, for example colorless glass, brown glass or green glass, the compressed air valve 8 is opened and the components enter the first container 12. The
  • the device according to FIG. 1 can also be used for sorting entire glass containers, for example bottles.
  • Openings in the containers 12 and 13 are downstream of conveyor belts 14 and 15.
  • the first conveyor belt 14 for the separated fraction can lead to a glass melting furnace.
  • the second conveyor belt 15 for the rest then leads to the separation of a further fraction to a storage or storage bunker 1 or directly to a further sorting device for another type of glass.
  • items to be sorted can be fed to a similar, similar device in which the light source is an infrared light source 16.
  • the detector is an infrared detector 17. Since the permeability to infrared light with glass, even if it is dirty or provided with paper labels, is greater than with other material, the material to be sorted can be separated into glass and other material by means of infrared light.
  • the glass also contains the glass which is opaque to white light. Detection with infrared light can be connected downstream or upstream of detection with white light.
  • the infrared detector 17 is connected to the evaluation unit 7, which is connected to a compressed air valve 18 in a line 19 extending from the compressed air tanks 9. The line 19 ends at a compressed air nozzle 20.
  • the outlet for the compressed air jet of the compressed air nozzle 20 is directed towards the end of the upper part 3a of a two-part acceleration channel 3. If the infrared detector 17 does not respond, the compressed air valve 18 is open. The pieces conveyed over the acceleration trough 3, which are not made of glass, are then thrown into an additional container or into a discharge line 21 by the air flow.
  • FIG. 2 shows in detail the beam path from the light source 4 to the two detectors 5 and 6. Only one light source 4 is used so that the light intensity to be introduced into the sorting pieces is the same for both detectors 5 and 6.
  • the light source 4 is assigned a condenser lens 22 in front of the acceleration trough 3.
  • a collecting lens 23 and an aperture 24 are located behind the acceleration trough 3.
  • a beam splitter 25 is then arranged. A first partial beam passes from this beam splitter 25 via an interference filter 26 to the first detector 5 and a second partial beam via another interference filter 27 to the second detector 6.
  • the transmission that is the light intensity behind a body as a percentage of the light intensity in front of the body, is dependent on the type of glass but also on the wavelength of the light for glass. For colored glass in particular, the transmission changes greatly depending on the wavelength of the light.
  • FIG. 3 shows the transmission ⁇ as a function of the wavelength ⁇ of the light for five different types of glass that can occur in the waste glass.
  • the light wavelength in nm is plotted on the abscissa and the transmission in percent is plotted on the ordinate.
  • the transmission for colorless, clean glass 28 is almost for all wavelengths of visible light constant between 80% and 100%. Even for colorless, lightly soiled glass 29 and for colorless, heavily soiled glass 30, the transmission hardly changes with the wavelength. Due to the degree of soiling, the transmission is for colorless; lightly soiled glass 29 approximately 50% and for colorless, heavily soiled glass 30 approximately 20%. Brown and green glass do not show a constant transmission curve at a changed wavelength.
  • Brown glass 31 has no transmission at a wavelength below 500 nm, ie it is opaque for these wavelengths. Above 500 nm to approx. 600 nm wavelength, the transmission increases up to approximately 30% and decreases again slightly towards higher wavelengths. Green glass 32 shows a transmission curve that rises and falls several times with increasing wavelength. There is no transmission below 350 nm. In the 400 nm range, two consecutive maxima are reached at 60%. This is followed by a minimum at 450 nm and approximately 30% transmission. Then a maximum is reached again at approx. 530 nm and approx. 65%. This is followed by another minimum at 650 nm and approximately 30% transmission. As the wavelength increases, the transmission also increases. The transmissions shown for brown glass 31 and for green glass 32 each apply to clean glass. When dirty, the curves for brown glass 31 and for green glass 32 are shifted downward on the ordinate, but retain their shape.
  • two transmission measurements for two specific light wavelengths are sufficient according to the method of the invention.
  • a first measurement at 450 nm light wavelength and a second measurement at 550 nm light wavelength are suitable. Small deviations don't hurt.
  • the two measured transmission values and the difference between the two transmission values to be calculated are used to clearly identify the type of glass. All calculations and comparisons are carried out in the evaluation unit 7 according to FIG. 1.
  • Colorless glass that is transparent is recognized and can be separated if the transmission values are greater than a threshold value and the difference between the two transmission values is less than a threshold value. Then there is a piece in which there is a constant, measurable transmission for the two wavelengths under consideration. According to FIG. 3, this is the case for colorless glass, irrespective of whether it is clean, slightly soiled or heavily soiled.
  • the fourth fraction is a residue which contains opaque material and can also contain glass of a color other than brown and green.
  • pieces of waste can be sorted quickly and reliably using simple means.
  • different types of glasses such as colorless, brown and green glass
  • the old household glass consists of colorless, brown and green glass, which is separated quickly and reliably using the method and device according to the invention. This results in larger quantities of single-grade glass of higher quality than before and even more waste glass can be used in the manufacture of colorless and also brown glass. This is the only way to make new containers out of the old glass, which are either colorless brown or green.
  • the material to be sorted can be made of granules, e.g. B. from fragments, or from containers, for. B. consist of bottles.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Sorting Of Articles (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Liquid Crystal Substances (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Claims (13)

  1. Procédé pour trier des granulés de verre et/ou des récipients en verre, selon lequel on irradie une partie du produit à trier à partir d'un côté avec un spectre étendu de lumière, notamment avec une lumière blanche, et selon lequel, sur le côté opposé, on mesure, séparément pour des gammes de deux longueurs d'onde différentes, les intensités de la lumière (28-32) qui sort d'une partie du produit à trier et on détermine la différence des intensités, et selon lequel on sépare et on évacue des fractions du produit à trier, en fonction du résultat de la mesure d'intensité,
    caractérisé par le fait qu'on mesure la première intensité lumineuse au voisinage d'une longueur d'onde supérieure à 500 nanomètres et on mesure la seconde intensité lumineuse au voisinage d'une longueur d'onde inférieure à 500 nanomètres, que l'on compare la différence des intensités à une première valeur de seuil et que l'on compare l'intensité pour la zone de la plus petite longueur d'onde à une seconde valeur de seuil, que lors du dépassement des deux valeurs de seuil par valeurs supérieures on sépare une première fraction (verre vert), que lors du dépassement d'une seconde valeur de seuil par valeurs inférieures, on sépare une seconde fraction (verre brun) et que, sinon, on sépare une troisième fraction (verre incolore).
  2. Procédé suivant la revendication 1, caractérisé par le fait que lors du dépassement d'une première valeur de seuil par valeurs inférieures et simultanément lors du dépassement de la seconde valeur de seuil par valeurs supérieures, on sépare la troisième fraction (verre incolore).
  3. Procédé suivant la revendication 1 ou 2, caractérisé par le fait que l'on mesure la première intensité lumineuse pour une longueur d'onde de 450 nanomètres et la seconde intensité lumineuse pour une longueur d'onde de 550 nanomètres.
  4. Procédé suivant l'une des revendications 1 à 3, caractérisé par le fait que lors du dépassement de la première valeur de seuil par valeurs supérieures et lors du dépassement simultané de la seconde valeur de seuil par valeurs inférieures, on sépare la seconde fraction (verre brun).
  5. Procédé suivant l'une des revendications 1 à 4, caractérisé par le fait qu'on irradie avec une lumière infrarouge le produit à trier avant ou après l'irradiation unilatérale par une lumière, qu'on détecte sur le été opposé l'intensité du rayonnement infrarouge sortant, et qu'on sépare une fraction, pour laquelle l'intensité du rayonnement infrarouge est inférieure à une valeur de seuil (céramique, pierres, etc.).
  6. Procédé suivant l'une des revendications 1 à 5, caractérisé par le fait qu'on irradie le produit à trier à l'aide d'une seule source de lumière (4) servant à émettre une lumière visible, notamment une lumière blanche, et que la lumière sortant du produit à trier est répartie entre au moins deux détecteurs (5, 6).
  7. Procédé suivant l'une des revendications 1 à 6, caractérisé par le fait que la fraction devant être séparée est entraînée, au moyen d'un courant d'air comprimé, dans un récipient (12) ou dans une canalisation d'évacuation (21).
  8. Dispositif pour trier des granulés en verre et/ou des récipients en verre, dans lequel une source de lumière (4) est disposée à côté d'un moyen d'entraînement pour le produit à trier, notamment à co'té d'une goulotte accélératrice (3), de manière à éclairer le produit à trier, et selon lequel en vis-à-vis de la source de lumière (4) sont disposés deux détecteurs (5, 6), qui servent à déterminer l'intensité lumineuse et sont sensibles à des lumières possédant des longueurs d'onde différentes, et selon lequel les détecteurs (5, 6) sont reliés à un dispositif de tri, par l'intermédiaire d'une unité d'évaluation (7) qui comporte une unité de soustraction servant à former la différence des intensités lumineuses,
    caractérisé par le fait que le premier détecteur est sensible à une lumière possédant une longueur d'onde supérieure à 500 nanomètres et le second dispositif est sensible à une lumière possédant une longueur d'onde inférieure à 500 nanomètres, que l'unité d'évaluation (7) comporte des comparateurs servant à comparer la différence des intensités lumineuses à une première valeur de seuil et à comparer l'intensité pour la zone de la longueur d'onde la plus faible à une seconde valeur de consigne, et que ces comparateurs sont reliés au dispositif de tri par l'intermédiaire d'un circuit combinatoire de l'unité d'évaluation (7).
  9. Dispositif suivant la revendication 8, caractérisé par le fait qu'il est prévu une seule source de lumière (4), et que la source de lumière (4) est disposée en vis-à-vis d'un diviseur de faisceau (25) aux faisceaux de sortie desquels sont associés des détecteurs (5, 6).
  10. Dispositif suivant l'une des revendications 8 ou 9, caractérisé par le fait que les détecteurs (5, 6) sont des photodiodes.
  11. Dispositif suivant l'une des revendications 8 à 10, caractérisé par le fait que des filtres interférentiels (26, 27) sont disposés en avant des détecteurs (5, 6).
  12. Dispositif suivant l'une des revendications 8 à 11, caractérisé par le fait qu'à côté des moyens d'entraînement, notamment à coté de la goulotte accélératrice (3) est disposée, en amont ou en aval de la source de lumière (4), dans la direction d'entraînement, une source de lumière infrarouge (16), à laquelle est associé un détecteur infrarouge (17) situé en vis-à-vis de cette source et qui est relié à un dispositif de tri associé.
  13. Dispositif suivant l'une des revendications 8 à 12, caractérisé par le fait que le dispositif de tri comprend une buse à air comprimé (11, 20) disposée à l'extrémité du moyen d'entraînement, notamment de la goulotte accélératrice (3) ou de la partie supérieure (3a) de la goulotte accélératrice (3), et à laquelle est associé un récipient (12) ou une canalisation d'évacuation (21).
EP89120714A 1989-11-08 1989-11-08 Procédé et dispositif de tri Expired - Lifetime EP0426893B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT89120714T ATE111781T1 (de) 1989-11-08 1989-11-08 Verfahren und einrichtung zum sortieren.
DE58908420T DE58908420D1 (de) 1989-11-08 1989-11-08 Verfahren und Einrichtung zum Sortieren.
EP89120714A EP0426893B1 (fr) 1989-11-08 1989-11-08 Procédé et dispositif de tri

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89120714A EP0426893B1 (fr) 1989-11-08 1989-11-08 Procédé et dispositif de tri

Publications (2)

Publication Number Publication Date
EP0426893A1 EP0426893A1 (fr) 1991-05-15
EP0426893B1 true EP0426893B1 (fr) 1994-09-21

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EP89120714A Expired - Lifetime EP0426893B1 (fr) 1989-11-08 1989-11-08 Procédé et dispositif de tri

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EP (1) EP0426893B1 (fr)
AT (1) ATE111781T1 (fr)
DE (1) DE58908420D1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210157C2 (de) * 1992-03-27 1994-12-22 Bodenseewerk Geraetetech Verfahren zum Sortieren von Glasbruch
JP3272606B2 (ja) * 1996-07-25 2002-04-08 三菱重工業株式会社 ガラスカレット分別装置
US8436268B1 (en) 2002-08-12 2013-05-07 Ecullet Method of and apparatus for type and color sorting of cullet
US7351929B2 (en) 2002-08-12 2008-04-01 Ecullet Method of and apparatus for high speed, high quality, contaminant removal and color sorting of glass cullet
AT8647U1 (de) 2005-08-08 2006-10-15 Binder Co Ag Verfahren zur detektion und sortierung von glas
CN103389201B (zh) * 2013-07-29 2015-10-21 浙江福斯特电子科技有限公司 Led高速测试分选装置
EP2923777B1 (fr) 2014-03-24 2016-07-27 FESTO AG & Co. KG Dispositif de tri
EP4520448A1 (fr) 2023-09-07 2025-03-12 Binder + Co AG Tri de copeaux de verre usagé à teneur élevée en oxyde de fer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1797327C2 (de) * 1964-09-25 1974-07-25 Kollmorgen Corp., Garden City, N.Y. (V.St.A.) Gerät zur Messung des optischen Reflexionsvermögens bzw. der Durchlässigkeit. Ausscheidung aus: 1622484
GB2133531B (en) * 1983-01-07 1986-12-17 Delta Technology Corp Agricultural product sorting
DE3731402A1 (de) * 1987-06-11 1988-12-29 Mabeg Muell & Abfall Anlage zur trennung von abfallhohlglaesern, insbesondere von flaschen mindestens nach weiss- und buntglas

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EP0426893A1 (fr) 1991-05-15
DE58908420D1 (de) 1994-10-27
ATE111781T1 (de) 1994-10-15

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