To make suitable for classifying plastics of general waste, to provide a low-priced mixing tank, and to improve a recycling rate.
In a device consisting of means for crushing 12 and classifying 13 members constituted essentially of plastics of two or more kinds of materials having different specific gravity, a means 16 for mixing the plastics and medium liquid, a specific gravity separation means 18 for transferring 17 the mixed plastics and utilizing differential specific gravity to classify them by material, means 19 and 20 for separating the plastics classified by material and the medium liquid, means 23, 24 and 25 for circulating the medium liquid to the mixing means, plural blades are provided in the direction perpendicular to the mixed plastics falling direction of the mixing means.
HARADA SUSUMU
KITA OSAMU
ONO KEISHIN
HITACHI TECHNO ENG
Next Patent: DEVICE FOR ADSORBING AND REMOVING MAGNETIC MATTER