Title:
METHOD FOR SEPARATING PLASTICS AND EQUIPMENT THEREFOR
Document Type and Number:
Japanese Patent JP3770810
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electrostatic separator capable of precisely separating a plastics by types even if a plastic piece in the form of sheet and film is included.
SOLUTION: In separating plastic pieces by types by throwing the friction electrified plastic pieced into electrostatic field 24 between a drum electrode 21 and a opposed electrode having high voltage applied thereto and altering the falling locus by the polarity and the amount of electrification of the plastic pieced, the plastic pieced are heated from a softening temperature or more to a melting temperature or less prior to friction electrification of the plastic pieces for heat-shrinkage. Thus, the adhesion of the plastic pieces to each other by static electricity is prevented.
More Like This:
| JP4218488 | Triboelectric charging device |
| JP2000246143 | PLASTICS SORTING DEVICE |
Inventors:
Tetsuya Inoue
Daisuke Tamakoshi
Hidehiko Maebata
Shogo Hamada
Carpenter Hiroyuki
Daisuke Tamakoshi
Hidehiko Maebata
Shogo Hamada
Carpenter Hiroyuki
Application Number:
JP2001180928A
Publication Date:
April 26, 2006
Filing Date:
June 15, 2001
Export Citation:
Assignee:
Hitachi Zosen Corporation
International Classes:
B03C7/02; B01F7/04; B01F11/00; B01F15/06; B03C7/06; (IPC1-7): B03C7/02; B01F7/04; B01F11/00; B01F15/06; B03C7/06
Domestic Patent References:
| JP2001276660A | ||||
| JP11090935A | ||||
| JP9299827A | ||||
| JP6502121A | ||||
| JP2000061356A | ||||
| JP57136980A |
Attorney, Agent or Firm:
Yoshihiro Morimoto
Previous Patent: MONITORING SENSOR
Next Patent: NON-VOLATILE MEMORY DEVICE AND MANUFACTURING METHOD THEREOF
Next Patent: NON-VOLATILE MEMORY DEVICE AND MANUFACTURING METHOD THEREOF