Calciner with tapered reverse feed spiral

A calciner includes a rotatable cylindrical retort which is indirectly heated and has material receiving and material discharging ends. A reverse pitch tapered spiral is affixed internal of the material discharging end with the spiral tapering toward the material discharging end whereby uniformity o...

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Bibliographische Detailangaben
Hauptverfasser:	MCCLINTIC, ROBERT P, CHRISTINI, JAMES N, KIM, TAI K
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING OPEN SINTERING OR LIKE APPARATUS OVENS RETORTS WEAPONS
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Beschreibung
Zusammenfassung:	A calciner includes a rotatable cylindrical retort which is indirectly heated and has material receiving and material discharging ends. A reverse pitch tapered spiral is affixed internal of the material discharging end with the spiral tapering toward the material discharging end whereby uniformity of material discharge over 300 degrees of rotation is achieved and whereby uniformity of agitation and increased residence time are achieved.