318 円筒形サイクロン分離器内の固体微粒子の濃度分布に関する拡散方程式の数値解と実験値との関係

概要

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One of the calculating methods for the estimation of the collection efficiency of a cyclone dust collector is basing upon the cut sixe Xc and the particle size distribution R (Xp). In order to consider the separation process of the fine solid particles in the centrifugal flow field, it is necessary to estimate not only the particle size XB on the mechanical equilibrium state of the solid particle between the centrifugal force Fc and the Stokes drag force Rd but also the radial distribution of the particle concentration. Then in this paper, the correlation between the experimental results of the particle concentration and the calculated results of the diffusion equation of the particle concentration by finite difference method with explicit technique was discussed in detail. The diameter of the cyclone was D1=290mm, the test dust was fly-ash of the mean diameter X50=17.5μm and the mean inlet velocity Vo in the tangential inlet pipe of the diameter Do=50mm was Vo=5.0,9.0 and 15.0m/s, respectively.
社団法人日本機械学会の論文
2002-07-09