Title:
METHOD FOR SEPARATING PLASTICS AND EQUIPMENT THEREFOR
Document Type and Number:
Japanese Patent JP3770810
Kind Code:
B
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.
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Inventors:
Inoue, Tetsuya
Tamakoshi, Daisuke
Maehata, Hidehiko
Hamada, Shogo
Daiku, Hiroyuki
Tamakoshi, Daisuke
Maehata, Hidehiko
Hamada, Shogo
Daiku, Hiroyuki
Application Number:
JP2001000180928
Publication Date:
February 17, 2006
Filing Date:
June 15, 2001
Export Citation:
Assignee:
HITACHI ZOSEN CORP
International Classes:
B03C7/02; B01F7/04; B01F11/00; B01F15/06; B03C7/06; B03C7/00; B01F7/02; B01F11/00; B01F15/00; (IPC1-7): B03C7/02; B01F7/04; B01F11/00; B01F15/06; B03C7/06
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