Prediction of the Product Size Distribution

10 kg of monosized 4kg of unbroken particles In Interval 1 feed particles 

remembering that S is a rate of breakage, we have Equation (12.11), which expresses the rate of change of the mass of particles in size interval i with time  

Since m, = yiM and wiy = i/yM, where M is the total mass of feed material and y, is the mass fraction in size interval i, then we can write a similar expression for the rate of change of mass fraction of material in size interval, i with time  

with a set of S and b values for a given feed material, the product size distribution after a given time in a mill may be determined. In practice, both S 

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