Liquid purification or separation – Plural distinct separators – Filters
Patent
1997-05-05
1999-06-29
Lithgow, Thomas M.
Liquid purification or separation
Plural distinct separators
Filters
210347, 210446, 210456, 210486, 425197, 425199, B01D 2941, B01D 3530
Patent
active
059164433
ABSTRACT:
In a filter apparatus 1, a central filter rod 6 is arranged in the interior 14 of a filter housing 2, the diameter d of which filter rod tapers in the direction of flow of the plastic melt. On the filter rod 6 are arranged filter discs 7 which are parallel to one another and have outer and inner diameters of equal size. The filter apparatus 1 operates as a continuous-flow filter apparatus in which the plastic melt flows in via an intake 4 and flows out via an outlet 5. A filter housing wall inner surface 3 tapers in the direction of flow of the plastic melt, so that a gap width h.sub.a (x) between a filter disc outer rim 8 and the filter housing wall inner surface 3 decreases in the direction of flow of the plastic melt.
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Filtrieren von Kunststoffschmelzen pp. 129-148.
Mueller Harald
Zimmermann Heinz-Werner
Zimmermann Uwe
Clements Gregory N.
Hoechst Diafoil GmbH
Lithgow Thomas M.
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