Loading patent…
OwnerCarl-Gustaf Ek, Yutaka Mizutani +5inventors
InventorsCarl-Gustaf Ek, Yutaka Mizutani, Takayuki Yamazawa, Junichi Iwai, Shigeki Inoue, Arne Syre, Jari Aarila
Estimating the term…
A screw extruder having a body forming a chamber of two barrels housing two counter-rotating axis-parallel rotors, a supply port for the material to be mixed in the chamber at one end of the body, a discharge port for discharging the mixed material at the other end of the body, a conveying section with screws for feeding the material from the supply port downstream to a mixing section which comprises at least two mixing zones, each mixing zone having at least one forward-conveying wing and at least one backward-conveying wing downstream of the forward-conveying wing on each rotor characterized in that a throttle valve is provided in the chamber downstream of the mixing section, and downstream of the throttle valve a second conveying section with screws and a second mixing section are provided.
Screw extruder having a body (1) forming a chamber (2) of two barrels (3, 4) housing two counter-rotating axis-parallel rotors (5, 6), a supply port (7) for the material to be mixed in the chamber (2) at one end of the body (1), a discharge port (8) for discharging the mixed material at the other end of the body (1), a first conveying section (34) with screws (12) for feeding the material from the supply port (7) downstream to a first mixing section (44) which comprises at least one forward conveying wing (14, 15;
Dependencies are inferred from the claim text.