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US 2022/0170634 A1Published application
Rotary kiln for the evaporation of thermoplastic waste
AssigneeFuenix Ecogy IP B.V.
InventorGernot Klaus BRUECK
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AssigneeFuenix Ecogy IP B.V.
InventorGernot Klaus BRUECK
Estimating the term…
This invention relates to a rotary kiln (1) for cracking open and evaporating size-reduced plastic waste, consisting of a cylindrical kiln housing (2) the wall of which can be heated to the respective evaporation temperature. The kiln housing (2) is bearing mounted so as to be rotatable around a longitudinal axis (X-X). Within the kiln housing (2) a fixedly positioned feed device (5) for the size-reduced plastic waste is placed running in the longitudinal direction of the kiln housing. The feed device (5) at least one-sidedly protrudes with a loading section (6) through a feed opening at an end side of the kiln housing (2), which loading section (6) can be connected to a material feed device (7). At the end side situated opposite the feed opening a gas suction opening (20) is situated in the kiln housing (2). The feed device comprises a conveyor device (5) and a conveyor tube (8), extending along the full length of the kiln housing (2), in which the conveyor device (5) for the size-reduced plastic waste is arranged in such a way that the plastic waste is moved from the loading section (6) in longitudinal direction through the kiln housing (2). The conveyor tube (8) has an outer sleeve (10) configured such that in the interior of the conveyor tube (8) an operational temperature prevails that is below the melting temperature of the size-reduced plastic material. Outlet openings (16, 16a, 16b, 16c, 16d, 16e) for the size-reduced plastic material are positioned such in the conveyor tube (8) including the sleeve (10) that the size-reduced plastic material drops out of the outlet openings (16, 16a, 16b, 16c, 16d, 16e) directly onto the opposite interior side of the kiln housing (2).
Rotary kiln for cracking and evaporating size-reduced plastic waste, consisting of a cylindrical kiln housing the wall of which can be heated to the respective evaporation temperature, and wherein the kiln housing is bearing mounted so as to be rotatable around a longitudinal axis (X-X), and wherein within the kiln housing a fixedly positioned feed device for the size-reduced plastic waste is placed running in the longitudinal direction of the kiln housing, wherein the feed device at least one-sidedly protrudes with a loading section through a feed opening at an end side of the kiln housing, which loading section can be connected to a material feed device, wherein at the end side situated opposite the feed opening a gas suction opening is situated in the kiln housing, characterized in that the feed device comprises a conveyor device and a conveyor tube, extending along the full length of the kiln housing, in which the conveyor device for the size-reduced plastic waste is arranged in such a way that the plastic waste is moved from the loading section in longitudinal direction through the kiln housing, wherein the conveyor tube has an outer sleeve configured such that in the interior of the conveyor tube (an operational temperature prevails that is below the melting temperature of the size-reduced plastic material, and outlet openings for the size-reduced plastic material are positioned such in the conveyor tube including the sleeve that the size-reduced plastic material drops out of the outlet openings directly onto the opposite interior side of the kiln housing.
Dependencies are inferred from the claim text.