Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]†
A wet micro-feeder that utilizes ultrasonic wave force was designed and constructed to feed small particles into a container of wet particulate materials. The particle discharge characteristics from a nozzle with the inside diameter Dn were in...
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doaj-54068ccab5e944498ad48a4440c5da842021-02-03T01:09:58ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-03-0121020821810.14356/kona.2003024konaParticle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]†Kenichi Yamamoto0Mitsue Shiokari1Toshiaki Miyajima2Masateru Kawamura3Masunori Sugimoto4Department of Material Systems Engineering and Life Science, Toyama UniversityDepartment of Material Systems Engineering and Life Science, Toyama UniversityDepartment of Material Systems Engineering and Life Science, Toyama UniversityDepartment of Material Systems Engineering and Life Science, Toyama UniversityDepartment of Material Systems Engineering and Life Science, Toyama UniversityA wet micro-feeder that utilizes ultrasonic wave force was designed and constructed to feed small particles into a container of wet particulate materials. The particle discharge characteristics from a nozzle with the inside diameter Dn were investigated using spherical and irregular particles of 80 to 180mm in diameter, dp.As a result, the critical ratio for particle blockage of the present feeder, (Dn/dp)c≒3.0, was found to be smaller than the values obtained previously (>4 ∼ 5) in the gravitational field for dry powders. The present feeder was able to achieve stable and continuous discharge of small amounts of particles. Multiple regression analysis proved that the discharge rate of particles, i.e. the number of particles discharged from the nozzle per unit of time, N̄, depended on Dn, dp, the applied voltage V0, and the median value of the particle shape index (surface roughness), y50, and that N̄ was proportional to Dn2.29. Therefore, N̄ could be controlled by V0 and Dn for given particles.† This report was originally printed in J. Soc. Powder Technology, Japan, 38(9), 617-625 (2001) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of the Soc. Powder Technology, Japan.https://www.jstage.jst.go.jp/article/kona/21/0/21_2003024/_pdf/-char/enwet micro-feederparticle dischargeultrasonic fieldnozzle apertureparticle shape |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kenichi Yamamoto Mitsue Shiokari Toshiaki Miyajima Masateru Kawamura Masunori Sugimoto |
spellingShingle |
Kenichi Yamamoto Mitsue Shiokari Toshiaki Miyajima Masateru Kawamura Masunori Sugimoto Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]† KONA Powder and Particle Journal wet micro-feeder particle discharge ultrasonic field nozzle aperture particle shape |
author_facet |
Kenichi Yamamoto Mitsue Shiokari Toshiaki Miyajima Masateru Kawamura Masunori Sugimoto |
author_sort |
Kenichi Yamamoto |
title |
Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]† |
title_short |
Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]† |
title_full |
Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]† |
title_fullStr |
Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]† |
title_full_unstemmed |
Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]† |
title_sort |
particle discharge characteristics from the nozzle of a thin tube immersed in liquid subjected to ultrasonic wave force [translated]† |
publisher |
Hosokawa Powder Technology Foundation |
series |
KONA Powder and Particle Journal |
issn |
0288-4534 2187-5537 |
publishDate |
2014-03-01 |
description |
A wet micro-feeder that utilizes ultrasonic wave force was designed and constructed to feed small particles into a container of wet particulate materials. The particle discharge characteristics from a nozzle with the inside diameter Dn were investigated using spherical and irregular particles of 80 to 180mm in diameter, dp.As a result, the critical ratio for particle blockage of the present feeder, (Dn/dp)c≒3.0, was found to be smaller than the values obtained previously (>4 ∼ 5) in the gravitational field for dry powders. The present feeder was able to achieve stable and continuous discharge of small amounts of particles. Multiple regression analysis proved that the discharge rate of particles, i.e. the number of particles discharged from the nozzle per unit of time, N̄, depended on Dn, dp, the applied voltage V0, and the median value of the particle shape index (surface roughness), y50, and that N̄ was proportional to Dn2.29. Therefore, N̄ could be controlled by V0 and Dn for given particles.† This report was originally printed in J. Soc. Powder Technology, Japan, 38(9), 617-625 (2001) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of the Soc. Powder Technology, Japan. |
topic |
wet micro-feeder particle discharge ultrasonic field nozzle aperture particle shape |
url |
https://www.jstage.jst.go.jp/article/kona/21/0/21_2003024/_pdf/-char/en |
work_keys_str_mv |
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