Method and device for recycling plastics
AssigneeBB Engineering GmbH
InventorKlaus Schäfer
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Abstract
Techniques recycle plastics in multiple successive process steps. A polymer, preferably a recyclable material, is melted using a discharge extruder, filtered using a first filter device under a positive pressure atmosphere, filtered and degassed using a degassing device, and discharged using a discharge extruder. The degassing device has at least one filter element and a vacuum chamber with a negative pressure atmosphere for filtering and degassing purposes, wherein the plastic melt can be conducted into the negative pressure atmosphere of the vacuum chamber through the filter element.
Claims19
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A device for recycling plastics, having a melting extruder for melting a polymer, preferably a recyclable material, having a filter unit for filtering the plastic melt, having a degassing unit for degassing the plastic melt, and having a discharge extruder for discharging the plastic melt to a final processing unit,
- wherein
- the degassing unit has at least one filter element and a vacuum chamber having a vacuum atmosphere, wherein the plastic melt can be passed through the filter element into the vacuum atmosphere of the vacuum chamber.
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Dependencies are inferred from the claim text.