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mfeku_26_4_328.pdf | 443.1 kB | Adobe PDF | 見る/開く |
タイトル: | Particle Size Estimation from Pressure Drops of a Pneumatic Conveying Pipe Line |
著者: | IINOYA, Koichi GOTO, Keishi |
発行日: | 27-Oct-1964 |
出版者: | Faculty of Engineering, Kyoto University |
誌名: | Memoirs of the Faculty of Engineering, Kyoto University |
巻: | 26 |
号: | 4 |
開始ページ: | 328 |
終了ページ: | 335 |
抄録: | Size measurement of solid particles has been generally performed for a test sample. In such a conventional measurement, however, it is time-consumable and not easy to get test samples from a process line. A method of particle size estimation from pressure drops of a pneumatic conveying pipe line is herein discussed for the flow of Newton's region. According to the previous report'), pressure drops of a pneumatic conveying pipe line have been able to be calculated theoretically using empirical values of λs and vt, i.e. friction factor of solid flow through a pipe and mean settling velocity of solid particles respectively. In this paper, λs and vt are obtained from the relations between solid-gas mixture ratio and pressure drops of an accelerating and a constant velocity sections, where the accelerating section has to start at the position of ν=0 such as the feed point of solid particles. Then the mean particle size equivalent to a sphere is calculated from νt, and shows good agreement with experimental results. |
URI: | http://hdl.handle.net/2433/280607 |
出現コレクション: | Vol.26 Part 4 |
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