ELECTROSTATIC SEPARATION DEVICE AND METHOD

WIPO Patent Application WO/2022/085182

A1

An electrostatic separation method according to the present invention includes: generating an electric field between electrodes by applying a voltage between an upper electrode disposed above a raw material layer, and a lower electrode disposed at the bottom or inside of the raw material layer; charging only conductive particles to the same polarity as the lower electrode by causing the conductive particles and lower electrode to come in to contact in the raw material layer by causing the raw material layer to flow; causing the same polarity as the upper electrode to appear, by dielectric polarization, on a downward transport surface comprising a non-conductor of a conveyor belt passing through a capture region, and by setting above the raw material layer and below the upper electrode as the capture region; selectively separating, by electrostatic force, conductive particles charged from the surface of the raw material layer, and adhering said particles to the transport surface of the conveyor belt; and separating and recovering conductive particles from the transport surface that has moved out of the electric field.

IHARA TAKAYUKI
IKEDA KOKI
OGIYAMA NAOYA
IIDA YUSUKE
MASAMOTO MANABU
FUKUMOTO KOUJI
KIYOTAKI GEN
MASHIO KEIICHI
SUZUKI TOMOYUKI
YAMAMOTO RYOMA

PCT/JP2020/039915

April 28, 2022

October 23, 2020

Click for automatic bibliography generation  

KAWASAKI HEAVY IND LTD (JP)

B03C7/02

WO2002076620A1

2002-10-03

JP2015160190A	2015-09-07
US3402814A	1968-09-24
JP2007117873A	2007-05-17

ARCO PATENT & TRADEMARK ATTORNEYS (JP)

View/Download PDF      PDF Help

Previous Patent: ELECTROSTATIC SEPARATING DEVICE

Next Patent: RECORDING METHOD AND METHOD FOR MANUFACTURING PRINTED ARTICLE