Application of divergent channels to inducing and optimizing fiber dispersion in flowing high-consistency pulp-suspension
Project/Area Number |
26420127
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Fluid engineering
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Research Institution | Kindai University |
Principal Investigator |
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
|
Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | 紙・パルプ / ディフューザ型流路 / パルプ繊維濃度 / ヘッドボックス / 繊維分散 |
Outline of Final Research Achievements |
This study explored the feasibility of improving the hydraulic headbox of papermaking machines by studying the flow of wood-pulp suspensions in diffuser passages. Pulp fiber concentrations were investigated by flow visualization and optical measurement, the method of which has been developed by the author. Changes in the time-averaged and fluctuation of the fiber concentration along the flow direction were examined. The effects of the working pulp-suspension concentration and the divergence angle of the diffusers on them were investigated systematically. In addition, a discussion was given for the degree of uniformity of the fiber-concentration distribution along the diffuser axis. The basic findings obtained from this study are expected to contribute to improving and optimizing headbox of the papermaking machines.
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Report
(4 results)
Research Products
(16 results)
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[Presentation] パルプ液の流れ特性2016
Author(s)
角田勝
Organizer
日本機械学会 第7回せん断流分科会
Place of Presentation
東北大学東京分室(東京千代田区)
Year and Date
2016-06-18
Related Report
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