CONTINUOUS EXTRUSION DEVICE BASED ON TWIN SCREW EXTRUDER
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United States of America Patent
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Issued Date -
Nov 5, 2015
app pub date -
Mar 19, 2014
filing date -
Mar 22, 2013
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Abstract
The present invention performs, by using a pair of filters, continuous operation of a twin screw extruder even during replacement of a filter. The continuous extrusion device based on a twin screw extruder of the present invention has a pair of filters (6, 6a) provided in a degassing device (5), and a partition valve (24) having a valve (34) for setting the filters (6, 6a) and a screw hole (16) of a cylinder (1) to a communicating or non-communicating state, degassing being performed by using the second filter (6a) during replacement of the first filter (6), and the twin screw extruder being operated continuously even during replacement of the filters (6, 6a).
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