公开(公告)号：US5967331A

公开(公告)日：1999-10-19

申请号：US958792

申请日：1997-10-27

申请人： Anatoly L. Katyshev ,  Oleg B. Kukar ,  Igor Yu. Sokolov

发明人： Anatoly L. Katyshev ,  Oleg B. Kukar ,  Igor Yu. Sokolov

IPC分类号： B03C7/00 ,  B03C7/12

CPC分类号： B03C7/12 ,  B03C7/006

摘要： A free-fall separator apparatus for mixed particles. The apparatus includes a screw feeder for triboelectrically charging the particles, a feed hopper for releasing the tribocharged particles in a laminar flow path between a first electrode structure and a second electrode structure. The first electrode structure provides corona charging for the falling particles, and a substantially uniform electrostatic separation field is provided between the electrode structures for separating the falling particles. The electrode structures may each include a plurality of vertically extending string electrodes. Also provided is a method for sorting mixed particles which includes steps of charging the particles through contact electrification, releasing the mixed particles to fall freely in a substantially laminar stream, charging the particles electrically through corona discharge, and separating the particles through an electrostatic separation field.

摘要翻译： 用于混合颗粒的自由落体分离装置。 该装置包括用于对颗粒进行摩擦充电的螺旋进料器，用于在第一电极结构和第二电极结构之间的层流路径中释放摩擦电荷的颗粒的进料斗。 第一电极结构为落下的颗粒提供电晕充电，并且在用于分离落下的颗粒的电极结构之间提供基本均匀的静电分离场。 电极结构可以各自包括多个垂直延伸的串电极。 还提供了一种分选混合颗粒的方法，其包括通过接触带电装入颗粒的步骤，使混合颗粒在基本上层流中自由下落，通过电晕放电将颗粒充电，并通过静电分离场分离颗粒 。