気固分散系における粉体のレオロジー評価

• 中嶋 一博

  シスメックス株式会社 科学計測事業部 神戸大学大学院自然科学研究科

• 菰田 悦之

  神戸大学工学部応用化学科

• 鈴木 洋

  神戸大学大学院自然科学研究科

• 薄井 洋基

  神戸大学工学部応用化学科

書誌事項

タイトル別名

• Evaluation of Powder Rheology in a Gas-Solid Suspending System
• キコブンサンケイ ニ オケル フンタイ ノ レオロジー ヒョウカ

抄録

Design of particle handling processes requires the characteristics of powder on flowability. Although various indices exist, most were obtained from the static characteristics and cannot express the dynamic effect. In the case of liquid or gas, the characteristic of flowability is represented by viscosity. Especially in the case of liquid-solid suspension, it is well known that the viscosity changes by the degree of particle agglomeration, and the agglomeration of suspended particles is determined by “particle interaction”. However, the characteristics of powder layer have not been well understood. In this study, a method to measure the viscosity of a gas-solid suspension was developed. FT4 powder rheometer was used to measure the torque exerting on the blade, which rotated and descended into a powder layer. These data were used to calculate the viscosity of powder layer. We concluded that the well-known powder index for flowability may represent its dynamic characteristics and that the powder viscosity may provide more detailed information on powder flowability.

収録刊行物

• 粉体工学会誌

  粉体工学会誌 44 (1), 4-9, 2007

  一般社団法人 粉体工学会

キーワード

• Rheology
• Gas-solid suspension
• Powder layer viscosity
• Flowability

詳細情報

• CRID: 1390282679489788672
• NII論文ID: 10018721093
• NII論文ID: 130003952782
• NII書誌ID: AN00222757
• DOI: 10.4164/sptj.44.4
• COI: 1:CAS:528:DC%2BD2sXhvVGrsbY%3D
• ISSN: 18837239
• ISSN: 03866157
• ISSN: http://id.crossref.org/issn/03866157
• NDL書誌ID: 8652117
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8652117
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可