BIDIRECTIONAL SIEVING CYLINDER TYPE FINE POWDER CLASSIFICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a bidirectional sieving cylinder type fine powder classification device for obtaining high-precision and high-purity fine powder which achieves weight reduction, a continuous efficient sieving and classification system for fine powder with increased adhesiveness, and which considers elimination of foreign matter contamination and easiness of disassembling and cleaning.;SOLUTION: A cylinder having a raw material supply tube and a coarse powder recovery tube, a cylinder which fixes and reinforces a classification screen vertically or at a predetermined inclination angle with a metal frame and is arranged in a center part, and a cylinder having a solvent supply tube and a fine powder recovery tube are connected horizontally and serially. Effective sieving and classification is carried out while controlling bidirectional flows of powder material and fluid in the device by control of depressurized air, and performing backwashing operation of particles clogged in the classification screen.;COPYRIGHT: (C)2013,JPO&INPIT