Particle Discharge Characteristics from the Nozzle of a Thin Tube Immersed in Liquid Subjected to Ultrasonic Wave Force [Translated]<sup>†</sup>

DOI Web Site オープンアクセス
  • Yamamoto Kenichi
    Department of Material Systems Engineering and Life Science, Toyama University
  • Shiokari Mitsue
    Department of Material Systems Engineering and Life Science, Toyama University
  • Miyajima Toshiaki
    Department of Material Systems Engineering and Life Science, Toyama University
  • Kawamura Masateru
    Department of Material Systems Engineering and Life Science, Toyama University
  • Sugimoto Masunori
    Department of Material Systems Engineering and Life Science, Toyama University

この論文をさがす

説明

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.<br>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.<br><br>† 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.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ