Title:
METHOD AND APPARATUS FOR SEPARATING PLASTIC
Document Type and Number:
WIPO Patent Application WO/2000/076669
Kind Code:
A1
Abstract:
When different kinds of plastic chips, where the difference in quantity among the kinds is great, are agitated for triboelectrification, the plastic chips are given sufficient charge or polarity for separation to increase the yield of recovery. If a specific kind of plastic chips (1) to be collected is small in quantity, the same plastic chips are additionally supplied as electrification assistant (21) and agitated in a triboelectrification device (3) to separate them. The electrification assistant (21) is left and used repeatedly in the triboelectrification device (3).
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Inventors:
Maehata, Hidehiko (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Inoue, Tetsuya (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Arai, Hiroaki (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tsukahara, Masanori (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tamakoshi, Daisuke (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Nagai, Kenichi (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Inoue, Tetsuya (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Arai, Hiroaki (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tsukahara, Masanori (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tamakoshi, Daisuke (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Nagai, Kenichi (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Application Number:
PCT/JP1999/007128
Publication Date:
December 21, 2000
Filing Date:
December 17, 1999
Export Citation:
Assignee:
HITACHI ZOSEN CORPORATION (7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Maehata, Hidehiko (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Inoue, Tetsuya (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Arai, Hiroaki (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tsukahara, Masanori (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tamakoshi, Daisuke (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Nagai, Kenichi (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Maehata, Hidehiko (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Inoue, Tetsuya (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Arai, Hiroaki (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tsukahara, Masanori (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Tamakoshi, Daisuke (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
Nagai, Kenichi (Hitachi Zosen Corporation 7-89, Nanko-kita 1-chome Suminoe-ku Osaka-shi, Osaka, 559-0034, JP)
International Classes:
B03C7/00; B03C7/06; B29B17/02; (IPC1-7): B03C7/02; B03C7/06; B29B17/00
Attorney, Agent or Firm:
Morimoto, Yoshihiro (All Nippon Airwaysbldg, 4th Floor 10-10 Nishi-Hommachi 1-chome Nishi-ku, Osaka-shi Osaka, 550-0005, JP)
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