Rotary particle separator
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United States of America Patent
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Oct 15, 2013
Grant Date -
Nov 29, 2012
app pub date -
May 27, 2011
filing date -
May 27, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A rotary particle separator for separating small particles from large particles is provided and includes an inclined rotary shaft having a first end and a second end. A particle bend is coupled to the elevated first end of the shaft. The particle bend has a bottom surface with a hole therethrough for gravity feed of material including the large particles and small particles from the bend along the shaft towards the second end. Annulae are spaced along the shaft with each of the annulae having a central aperture bounded by a ring that terminates in an annulae outer diameter. At least one paddle is interspersed between two adjacent annulae with at least one paddle positioned to rotate around the shaft. A screen mesh having a mesh size surrounds the annulae with a mesh size such that the small particles within the material are able to pass through the mesh and thereby leave larger particles preferentially segregated within the volume defined by the annulae spaced along the shaft. A large particle exhaust is provided proximal to the second end of the shaft after the particulate has traversed the annulae.
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