Example $2$

A ball mill is fed with fresh feed $(F)$ as $30{10}^{3}k\frac{g}{h}$ and the product is screened using a screen of $295m$ aperture size. Oversize are recycled at a rate of $60{10}^{3}k\frac{g}{h}.$

Calculate the energy consumption of ball mill for open circuit as well as well as closed circuit grinding. Work index $=12\mathrm{.}74kW\frac{h}{?}$ ton is given.

Example $2$

Particle Size Distribution

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