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US 6,206,199 B1Granted
Method and an apparatus for recycling different components in a multiple layer material
AssigneeCellwood Machinery AB
InventorsRudolf Kurtz, Günter Betz
Life of this patent
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AssigneeCellwood Machinery AB
InventorsRudolf Kurtz, Günter Betz
Estimating the term…
In order to recover the various components of multiple layer materials, a method uses a refiner or disperser including mutually opposing rotating discs having material engaging surfaces or elements such as teeth. The method includes: adjusting a gap between the discs so that a material is subjected to a shear force that mutually separates its material layers in the form of pieces or fragments in the absence of any substantial disintegration of the layers; pumping the separated pieces of the various layers together with a supplied suspension liquid to a separator; and, separating readily pulped or slushed pieces of the material suspended in the suspension liquid from pieces of the suspended material that are not readily pulped or slushed. The pumping of the separated pieces and suspension liquid to the separator can be via a collection vessel.
A method of recovering different components of a multiple layer material (20) delivered to an infeed zone (4) of a refiner (2) that includes mutually opposing discs (5, 6) which rotate relative to one another and which include material engaging surfaces or material engaging elements (5a, 6a), the method comprising:
A method according to any one of claims 1-3, 10, and 11, further comprising pre-treating the multiple layer material (20) by at least one of moistening and heating the multiple layer material, in the infeed zone (4) or prior to delivering the multiple layer material to the infeed zone.
A recovery plant for recovering different components of a multiple layer material, comprising:
Dependencies are inferred from the claim text.