Problem 2

In the circuit shown below, the dry solids of density are fed at the rate of  The feed to the cyclone contains  solids by weight. It is found that  size in the rod mill discharge, ball mill discharge and cyclone feed is  and  respectively. Determine the volumetric flow rate of feed (solid+ water) to the cyclone.

Solution: material balance  

 

(1)

                                                                                 
Performing balance on  size

(2)

Solving equation 1 and 2 we get

Volumetric flow rate of feed (dry) to  Ans

Volumetric flow rate of water  Ans

Note  is dilution ratio. Density of water