Title:
SORTING DEVICE OF PLASTIC
Document Type and Number:
Japanese Patent JP3929216
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To separate and recover plastic pieces with high purity.
SOLUTION: Below a triboelectrifying device 2 for agitating plastic pieces 1a, 1b, an upper first electrostatic separator 10 and a lower second electrostatic separator 12 are installed. The first electrostatic separator 10 is provided with a first drum electrode 13 and a first counter electrode 15 arranged oppositely to the first drum electrode 13, and the second electrostatic separator 12 is provided with a second drum electrode 17 and a second counter electrode 18 arranged oppositely to the second drum electrode 17. The plastic pieces 1a, 1b are separated over plural times, thereby surely separating them according to the polarity/charged quantity thereof to recover them.
Inventors:
Carpenter Hiroyuki
Masanori Tsukahara
Tetsuya Inoue
Hidehiko Maebata
Masanori Tsukahara
Tetsuya Inoue
Hidehiko Maebata
Application Number:
JP29752699A
Publication Date:
June 13, 2007
Filing Date:
October 20, 1999
Export Citation:
Assignee:
Hitachi Zosen Corporation
International Classes:
B03C7/06; B03C7/02; B03C7/08; B29B17/00; (IPC1-7): B03C7/06; B03C7/02; B03C7/08; B29B17/00
Domestic Patent References:
| JP48049663U | ||||
| JP57123652U |
Attorney, Agent or Firm:
Yoshihiro Morimoto
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