ball mill and sag circuit efficient

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Model:Raw Bond/Barratt SAB & SABC Model - SAGMILLING.COM

Raw Bond ModelRecommended UsageDefault Parameter ValuesThis is a SAG or AG mill plus ball mill model that estimates the specific energy consumption (ESAG) using the 1979 Barratt equation and the classical Bond work index equation including Rowland efficiency factors. The model allows a manual calibration factor on both equations (CFSAG and CFball, respectively). This formula usually gives higher total circuit specific energy consumption estimates than the other Bond/Barratt models. This is largely due to the absence of a phantom cycloneeffect in the equations.

SAG Mill Grinding Circuit Design - 911metallurgist.com

Jun 06, 2016· By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ball-mill circuit feed is maintained while still unloading the SAG circuit (Mosher et al, 2006). A variant of this method is to direct pebble-crushing circuit product to the ball-mill sump for secondary milling: while convenient, this has the disadvantage of not controlling the top size of feed to the ball-mill circuit.

[PDF]USING THE SMC TEST® TO PREDICT COMMINUTION CIRCUIT …

the ball mill is less energy efficient than a crusher and has to input more energy to do the same amount of size reduction). Hence from equation 7, to crush to the ball mill circuit feed size (x. 2) in open circuit requires specific energy equivalent to: f x f x 2. 1 W c ic. 1.19* 4 2 M x x. 1 (10) For closed circuit …

SAG mills - Metso Outotec

They can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill and some or all of the work done by a ball mill. SAG mills are also an optimum solution for wet grinding since crushing and screening in these cases can be difficult, if not impossible. Efficiency …

Autogenous Grinding & Semi Autogenous Grinding Circuits

Jul 20, 2017· ABC closed circuit, Autogenous-Ball-Mill-Crusher. Another similar technique is the ABC open circuit where the crusher product feeds the ball mill rather than the autogenous mill. Crusher product is typical feed to a ball mill using large diameter balls but not much grinding of 20-25 mm ore can be accomplished in an autogenous mill.

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