Twin conical screw extruder

Details Twin conical screw extruder Twin conical screw extruder

B - Operations, Transporting

29

C

B29C 47/40 (2006.01) B29C 47/08 (2006.01) B29C 47/46 (2006.01) B29C 47/64 (2006.01)

Patent

CA 2049256

ABSTRACT The present application discloses a twin conical screw extruder having two conical screw rotors. Each conical rotor has an unsupported end tip with the opposite end of the rotor supported by a bearing. The rotors are adapted to be driven in different directions with the screws meshing with each other. The rotors are supported within a twin conical container having an inner wall surface in the vicinity of the two rotors which constitute the loci of rotation of the edges of the screw portions of the conical rotors. The conical container also includes a material inlet port near the base of the rotors and a material extruding port at the tips of the rotors. The extruder further includes a no load pressurizing arrangement which causes the shafts of the rotors to be forcibly flexed when the container is not filled with material.

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