To accurately sort waste plastic containing various kins of materials while classifying by materials.
Sorting separating equipment is disclosed including: a crusher 11 that crushes waste plastic materials to form waste plastic pieces of a prescribed size; a steam cleaning apparatus 13 that is arranged on the downstream side of the crusher 11 and that cleans the waste plastic pieces; a main/sub wet type specific gravity sorters 14, 15 that are arranged on the downstream side of the steam cleaning apparatus 13, that separate the waste plastic into suspended or precipitated specific gravity sorted pieces using separation liquid of specific gravity positioned in the middle of the specific gravity rows of the materials contained in the waste plastic pieces, and that classify the materials of the respective specific gravity sorted pieces into no more than three kinds; and a first to a third electrostatic separators 16A-16C that are arranged on the downstream side of the main/sub wet type specific gravity sorters 14, 15 and that comprise a triboelectrifying apparatus which triboelectrifies the respective specific gravity sorted pieces and an electrostatic sorter 56 which puts the respective triboelectrified specific gravity sorted pieces in an electrostatic field between a high-voltage-applied rotary drum electrode and the counter electrode to change the dropping directions and to separate the pieces while the pieces are classified by the materials.
INOUE TETSUYA
NIWA TSUTOMU
ITOGA TAKESHI
HITACHI SHIPBUILDING ENG CO
| JP2003071837A | 2003-03-12 | |||
| JPH0847926A | 1996-02-20 | |||
| JP2000342998A | 2000-12-12 | |||
| JP2008194625A | 2008-08-28 | |||
| JPS59138450U | 1984-09-14 | |||
| JPH0847926A | 1996-02-20 | |||
| JP2000342998A | 2000-12-12 | |||
| JP2008194625A | 2008-08-28 | |||
| JPS59138450U | 1984-09-14 | |||
| JP2003071837A | 2003-03-12 |
Yoshihiro Morimoto