Device and Method for Sorting Polymeric Material
2 Assignments
0 Petitions
Accused Products
Abstract
A device for obtaining a material from a mixed fraction (including particles of a desired material and particles of another material with different optical properties) has a first sorting apparatus and at least two further sorting apparatuses below the first sorting apparatus. From the first sorting apparatus, a major fraction is introduced into a first further sorting apparatus and purified further there, while a minor fraction is passed into a second further sorting apparatus and processed further there.
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Citations
37 Claims
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1-19. -19. (canceled)
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20. Device for obtaining a material from a mixed fraction (M), which comprises particles of the desired material and particles of at least one further material with different optical properties than the desired material, said device comprising a first sorting apparatus (S1) with at least two outlet openings (5, 6) for particles separated from one another, wherein at least two further sorting apparatuses (S2, S3) with at least two outlet openings (5, 6) for particles separated from one another are located downstream of the first sorting apparatus (S1), wherein
an outlet opening (5) of the first sorting apparatus (S1), for receiving a major fraction (H1), is connected to the inlet opening of a first further sorting apparatus (S2), an outlet opening (6) of the first sorting apparatus (S1), for receiving a minor fraction (N1), is connected to the inlet opening of a second further sorting apparatus (S3), an outlet opening (6) of a first further sorting apparatus (S2), for receiving a minor fraction (N2), is connected to the inlet opening of the first sorting apparatus (S1) and an outlet opening (5) of a second further sorting apparatus (S3), for receiving a major fraction (H3), is connected to the inlet opening of the first sorting apparatus (S1).
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28. Method for obtaining a material from a mixed fraction (M), which comprises particles of the desired material and particles of at least one further material with different optical properties than the desired material, said method comprising the following steps:
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a) removing particles of the further material from particles of the desired material in a first sorting apparatus (S1), obtaining a major fraction (H1) and a minor fraction (N1) in the process; b) transferring the major fraction (H1) into a first further sorting apparatus (S2) and transferring the minor fraction (N1) into a second further sorting apparatus (S3); c) removing particles of the further material from particles of the desired material in a first further sorting apparatus (S2), obtaining a second major fraction (H2) and a second minor fraction (N2) in the process; d) removing particles of the further material from particles of the desired material in a second further sorting apparatus (S3), obtaining a third major fraction (H3) and a third minor fraction (N3) in the process; e) returning the second minor fraction (N2) and the third major fraction (H3) to the mixed fraction (M) or directly transferring these fractions (N2, H3) into the first sorting apparatus (S1). - View Dependent Claims (29, 30, 31, 32, 33, 34, 16, 35, 36, 37)
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Specification