mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball, semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential ...

Therefore, ball load could be kept constant by using direct ... Usually, plant operators use mill power readings as an indicator of ball filling degree and, often, try to keep it at the ... Figure 2—Nonlinear relationship between power draw and filling degree (a) (b)