ELEMENT FOR A COUNTER-ROTATING TWIN-SCREW PROCESSOR

Abstract: an element for a counter-rotating twin screw processor having a pair of screw shafts is disclosed. the element comprises an axial bore for mounting on a screw shaft. the element further comprises multiple lobes and defines a first outer diameter (fod), a second outer diameter (sod), a first inner diameter (fid) and a second inner diameter (sid). the fod is larger than the sod, the fid is larger than the sid, and a radial center distance ‘a’ between the screw shafts is defined by (fod+sid)/2. at least one lobe has a cross sectional profile in the radial plane defining a first segment extending from the fod to the fid and a second segment extending from the fod to the sid, or the first segment extending from the sod to the fid and the second segment extending from the sod to the sid.

Inventor(s): Babu Padmanabhan

CPC Classification: B01F27/723 (the helices intermeshing to knead the mixture)

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