Title:
METHOD OF PRODUCING SPHERICAL MONODISPERSED PARTICLES AND SPHERICAL MONODISPERSED PARTICLES PRODUCED BY THIS METHOD, AND PRODUCTION DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2002/022248
Kind Code:
A1
Abstract:
A method of producing spherical monodispersed particles, capable of producing these particles constantly and efficiently. A diaphragm (15) that has received vibration generated and transmitted by a piezoelectric actuator (12) via a transmission rod (14) vibrates at a pulse of the same frequency as that of the actuator (12) and lets slurry contacting it generate a pulse pressure wave to thereby jet slurry in a slurry reservoir (21a) from an orifice on an orifice plate (23) as slurry drops once per frequency of the thus generated pulse pressure wave. Slurry drops freely fall inside a drying furnace (42) kept at a specified temperature properly determined so as to completely dry and remove the liquid component of slurry drops in a recovery unit (C) and are spheroidized by surface tension during the fall. Spherical monodispersed particles thus completely dried are recovered in a recovery box (44).
Inventors:
KAWASAKI AKIRA (JP)
Application Number:
PCT/JP2001/006941
Publication Date:
March 21, 2002
Filing Date:
August 10, 2001
Export Citation:
Assignee:
KAWASAKI AKIRA (JP)
International Classes:
C04B35/628; B01D1/20; B01J2/04; B01J2/18; B05B17/06; C04B35/447; F26B3/12; F26B5/06; (IPC1-7): B01J2/04; B01D1/20; B05B1/14; C04B35/626; F26B5/06
Foreign References:
| JPS5995925A | 1984-06-02 | |||
| JPH11314030A | 1999-11-16 | |||
| JPH10211467A | 1998-08-11 | |||
| JPH05332673A | 1993-12-14 | |||
| JPH06184607A | 1994-07-05 | |||
| EP0235603A2 | 1987-09-09 | |||
| JP2001327849A | 2001-11-27 | |||
| JPS62237935A | 1987-10-17 |
Attorney, Agent or Firm:
Kaiguchi, Muneaki (Shibuya 2-chome Shibuya-ku Tokyo, JP)
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