| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooker-extruder for biopolymers, having high throughput capacity combined with high product quality, which is determined by constant process conditions, good homogenizing (mixing, defined temperature creation), good formability of the dough as well as low investment costs, low maintenance cost and flexible process design and finally good controllability by fast and simple handling, especially, during starting of operation, dismounting and cleaning. <P>SOLUTION: The cooker-extruder for producing thermally treated polymer has a feeding hopper (14), a screw (10), a nozzle (16), and at least one spatula-pump arranged between the screw and the nozzle, wherein each spatula-pump comprises a matrix of holes and an associated spatula element (together defined as spatula-pump). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
