PRODUCTION OF CRUSHED POWDER OF WASTE PAPER AND ITS DEVICE, BLENDED POWDER OF THE WASTE PAPER WITH RESIN BY USING THE CRUSHED POWDER, ITS PRODUCTION AND ITS DEVICE, BLENDED AND MOLDED MATERIAL INCLUDING THE CRUSHED POWDER, ITS PRODUCTION AND ITS DEVICE, BLEND PLATE INCLUDING THE CRUSHED POWDER, ITS EXTRUSION MOLDING AND ITS DEVICE

摘要

PURPOSE: To mold blended powder of waste paper derived from throwing broken flakes of waste paper into a mixer, crushing, drying, adding a thermoplastic resin and blending, to a prescribed shape. CONSTITUTION: Waste paper is broken to small flakes having <=15mm, preferably <=8mm, more preferably <=5mm a long side or a long diameter and thrown into a mixer 80, added an addition agent such as calcium carbonate or titanium oxide, the waste paper flakes are crushed by rotating plural pieces and plural stages of agitating and impacting fans 85, 86 and 87 symmetry around a rotating shaft 83 at 900-980rpm, preferably 900-950rpm shearing rate. The crushed flakes are dried to <=1.0wt.%, preferably <=0.5wt.% water content by utilizing searing heat generation of the fans 85, 86 and 87 and a volatile gas is included into a dry air fed from a gas-feeding tube 96, then discharged from a discharging tube 95. Respective 35-65wt.%, preferably 40-60wt.% the crushed powder of the waste paper and a thermoplastic resin material are blended and cooled to obtain blended powder of the waste paper having <=10mm granular diameter, and further the powder is subjected to an injection or an extrusion molding, thus prescribed molded material is obtained.