METHODS AND SYSTEMS FOR CRYSTALLIZING TACKY MATERIALS USING A TUMBLER

A tumbler crystallizer for crystallizing pelleted, tacky, polymeric materials includes a housing for rotatably supporting a removable paneled drum on rollers. The removable panels may be made of a transparent, heat-insulating material. The drum receives a flow of hot pellets through an inlet chute,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	THEPSIMUANG, Boonlert
Format:	Patent
Sprache:	eng
Schlagworte:	MAKING GRANULES OR PREFORMS MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A tumbler crystallizer for crystallizing pelleted, tacky, polymeric materials includes a housing for rotatably supporting a removable paneled drum on rollers. The removable panels may be made of a transparent, heat-insulating material. The drum receives a flow of hot pellets through an inlet chute, and a tumbling action of the drum and internal agitators keeps the pellets in motion relative to each other to prevent agglomeration until they reach a desired level of crystallinity and are no longer tacky. Baffle plates are provided at intervals along the length of the drum to slow the flow of pellets therethrough to increase residence time. Damper plates are provided near the exit end of the drum to aid in building a bed of pellets within the drum, and also to control residence time of the pellets within the drum.