Apparatus and methods for recovering polyolefin plastic

Apparatus for use in the recovery of polyolefin plastic comprises; a three-phase decanter centrifuge means, using water as its liquid medium and an agglomeration means; wherein the three-phase decanter centrifuge means is upstream from the agglomeration means, and the centrifuge separates the polyol...

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Bibliographische Detailangaben
1. Verfasser:	JAMES ALEXANDER DONALDSON
Format:	Patent
Sprache:	eng
Schlagworte:	MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Apparatus for use in the recovery of polyolefin plastic comprises; a three-phase decanter centrifuge means, using water as its liquid medium and an agglomeration means; wherein the three-phase decanter centrifuge means is upstream from the agglomeration means, and the centrifuge separates the polyolefin material from the source mixture such that the polyolefin material is then fed into the agglomeration means. The apparatus may be heated to 60-99.9 oC and may contain a size control means. The size control means may limit the size of material entering the centrifuge to 25 mm or less and may comprise; a screen, filter or means for reducing the size of the source material. A method of use for the apparatus is also disclosed.