Title:
POWDER FEEDER FOR FORMING ULTRAFINE PARTICLES
Document Type and Number:
Japanese Patent JPS6475033
Kind Code:
A
Abstract:
PURPOSE: To enable a quantitative feeding of ultrafine particles with a low cost apparatus by holding a raw material powder in an pressure vessel, by blowing out a gas spirally at the bottom of the vessel and by transporting the powder with a swirling stream of the gas.
CONSTITUTION: A raw material powder 9 of a metal, an oxide, a nitride, a carbide, etc., is held in a pressure vessel 1, and a gas is blown spirally out of nozzles 8 attached to the tip of a gas supply pipe 6 into the lowest part of the vessel 1 so as to transport the powder with a swirling stream of the gas. A quantitative feeding of ultrafine particles of several score μm or smaller becomes possible with a low cost apparatus as a result.
Inventors:
KANAMARU MASATOSHI
ENDO KIJU
IBARAKI YOSHIAKI
ENDO KIJU
IBARAKI YOSHIAKI
Application Number:
JP23221687A
Publication Date:
March 20, 1989
Filing Date:
September 18, 1987
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B22F9/14; B01J4/00; B01J8/00; B65G53/40; (IPC1-7): B01J4/00; B22F9/14; B65G53/40