Title:
RAW MATERIAL FEEDER IN SYSTEM FOR WASTE PLASTIC PYROLYSIS AND CONVERSION THEREOF INTO OIL
Document Type and Number:
Japanese Patent JP3393292
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a safe raw material feeder capable of more stably and continuously feeding a raw material composed of a waste plastic fluff in a system for pyrolysis of waste plastics and conversion thereof into an oil including the restarting of operation after once stopping thereof without any fear of generating pyrolytic gases by semimelting of the raw material.
SOLUTION: This raw material feeder 1 is obtained by installing a vertical and cylindrical casing 4, communicating through a chute 3 to the lower end of a hopper 2 and having a raw material feeding port 5 at the lower end thereof, a vertical rotating shaft 61 and a screw 6, arranged in the casing 4 and composed of a helical blade 62 attached to the periphery of rotating shaft 61. A tapered part 4a is provided in the lower part of the casing 4 and the blade 62 is formed into a tapered shape toward the lower side so as to pass along the inner surface of the tapered part 4a. A flow passage 64 for cooling water for cooling the raw material P around the screw 6 is installed in the interior of the vertical rotating shaft 61 of the screw 6.
Inventors:
Etsuo Ogino
Yoshimasa Miura
Hideo Suzuki
Yoshimasa Miura
Hideo Suzuki
Application Number:
JP8898497A
Publication Date:
April 07, 2003
Filing Date:
April 08, 1997
Export Citation:
Assignee:
Hitachi Zosen Corporation
International Classes:
B29B17/00; C08J11/12; C10G1/10; B09B3/00; (IPC1-7): C10G1/10; B09B3/00
Domestic Patent References:
| JP8269462A | ||||
| JP7157771A | ||||
| JP5089480A | ||||
| JP4170495A |
Attorney, Agent or Firm:
Eisuke Kishimoto (3 others)