Title:
METHOD FOR TREATING WASTE HOUSEHOLD ELECTRIC APPLIANCE TO RECYCLE THE SAME AS RESOURCES
Document Type and Number:
Japanese Patent JP3969048
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To prevent a metal such as iron powder generated in a crushing process from getting mixed in an olefinic resin, which is recycled as a material, as foreign matter in a method for treating a waste household electric appliance to recycle the same as resources by crushing the used household electric appliance to fractionate the same into separated materials.
SOLUTION: Ferrous metal pieces are taken out of the crushed matter obtained in a primary crushing process 3 in a magnetic force sorting process 4 and the crushed matter is separated into ultralight matter such as a film, foamed polystyrene, sponge and plastics other than the same in a first air sorting process 5a and a second air sorting process 5b. Nonferrous crushed matter and plastics are separated in a nonferrous metal sorting process 6 and the crushed matter mixed with plastics different in kind is separated into two or more kinds of plastic groups by utilizing the difference between physical properties in a water specific gravity sorting process. At least a fine crushed matter separation process 9 for separating and removing fine crushed matter such as iron powder generated in the primary crushing process 3 is provided on and after the primary crushing process 3.
Inventors:
Fukuda, Morinori
Inoue, Noboru
Akiyama, Hisao
Inoue, Noboru
Akiyama, Hisao
Application Number:
JP2001000310916
Publication Date:
June 15, 2007
Filing Date:
October 09, 2001
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B09B5/00; B02C23/08; B03B5/28; B03B5/62; B03B7/00; B03B9/06; B03C1/00; B03C1/26; B03C1/30; B07B7/08; B09B3/00; B29B17/02; B29B17/04; B09B5/00; B02C23/00; B03B5/00; B03B5/28; B03B7/00; B03B9/00; B03C1/00; B03C1/02; B07B7/00; B09B3/00; B29B17/02; B29B17/04; (IPC1-7): B09B5/00; B02C23/08; B03B5/28; B03B5/62; B03B7/00; B03B9/06; B03C1/00; B03C1/26; B03C1/30; B07B7/08; B09B3/00; B29B17/02