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Aug 25 2014 · The main drawback of SAGhigh power consumption. To reduce power consumption I think 1. The right determine of SAG feed size. This depends on the mill diameter The main drawback of SAGhigh power consumption. To reduce power consumption I think 1. The right determine of SAG feed size. This depends on the mill diameter and the ball size. Feed size necessary to take 80 of the maximum piece of ore that will crushed by the balls. For the big SAG more than 8 meters optimal feed size will be50mm.Chat Online### MEI Blog Where are SAG mills going

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SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21 . The largest SAG mill is 42 (12.8m) in diameter powered by a 28 MW (38 000 HP) motor.

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The throughput and efﬁciency of a SAG mill depends on the volumetric load An overloaded mill has reduced coarse ore breakage as the cascading balls and rock cannot drop far enough reducing The throughput and efﬁciency of a SAG mill depends on the volumetric load An overloaded mill has reduced coarse ore breakage as the cascading balls and rock cannot drop far enough reducing kinetic energy for breakage. An underloaded mill will break coarse ore well but at the expense of added Chat Online### SAG Mill Control at Northparkes Final

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SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21 . The largest SAG mill is 42 (12.8m) in diameter powered by a 28 MW (38 000 HP) motor.

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SAG mill control insight and reliability. The throughput and efﬁciency of a SAG mill depends on the volumetric load An overloaded mill has Advantages Create optimal control strategies around charge toe and media angles as process variables Monitor liner wear and other efﬁciency changes in order to optimize liner/lifter

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Another requirement is that the finer sizes should break easily and should be removed from the mill otherwise there will be a critical size buildup. Autogenous grinding has two advantages (1) it reduces metal wear and (2) eliminates secondary and tertiary crushing stages. Thus it offers a savings in capital and operating costs.

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