Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1996-05-31
1998-03-17
Soohoo, Tony G.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 88, 366100, 366301, 366322, B01F 708
Patent
active
057278768
ABSTRACT:
A mixing apparatus suitable for mixing and conveying solid, particulate, polymeric materials, comprising a barrel that can be heated and cooled, at least two co-rotatable, self-wiping extruder screws located within the bore of the barrel, the screws being connected through a laterally flexible coupling to a dirve means which can reverse the direction of rotation of the screws upon the occurrence of a predetermined event. The apparatus also comprises a closeable feed port and a closeable discharge port, both of which can be made gas-tight, the shafts of the screws being provided with seals capable of withstanding elevated gas pressures inside the barrel.
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E. I. Du Pont de Nemours and Company
Soohoo Tony G.
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