#### AMIT 135: Lesson 7 Ball Mills & Circuits – Mining Mill ...

Dry and wet grinding common. Ball mill photographed by Ron Frisard ... Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge, He, and the radius of the mill, R, i.e., ... A function of the work index of the material. Bond developed an express ion to ...

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