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PARTICLE SIZE ANALYSIS

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PARTICLE size ANALYSIS1CHARACTERIZATION OF SOLID particles size SHAPE DENSITY2SPHERICITY, Equivalent diameter, Nominal diameter = Let = , = , = = = 6 3 Surface area of the sphere of diameter Dp, = 2=6 = =6 It is often difficult to calculate volume of PARTICLE , to calculate equivalent diameter, Dpis taken as nominal diameterbased on screen ANALYSIS or microscopic analysis3Sphericityof particles having different , length = to , Table , McCabe Smith Sphericityof sphere, cube, short cylinders(L=Dp) = 15VOLUME SHAPE FACTOR 3 = 3Where , a = volume shape factorFor sphere, = 6 3or = 66Commonly used measurements of PARTICLE size7Particle size / units Equivalent diameter : Diameter of a sphere of equal volume Nominal size : Based on; Screen ANALYSIS and Microscopic ANALYSIS For Non equidimensionalparticles Diameter is taken as second longest major dimension.

•Particle size range from fine powder to 6.5mm, Bulk density from 16 to 3200kg/m3 •Pressure System –1-5 atm gauge –Free flowing material for any …

  Size, Particles, Particle size

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