Where does most of the wear occur inside a SAG mill ? - Laboratory Testing & General Mineral Processing Engineering/Design - Metallurgist & Mineral Processing Engineer

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Where does most of the wear occur inside a SAG mill ? (1 reply)

5 years ago

MSKabir 5 years ago

During rotation of a SAG mill, the three prominent zones are the grinding zone, tumbling or cascading zone and the cataracting zone (crushing zone). Are there any studies about the percentage of wear in the areas mentioned and what type of wear dominates the region? I would be really grateful to receive any feedback from experts in this area.

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Todd H

4 years ago

Todd H 4 years ago

This is not a straight forward question as it depends on a lot of variables. Liner designs are meant to keep the wear even so that you are replacing liners that are evenly worn. You dont want to pay for metal that you throw away. The lifters generally take the majority of the wear but the end plate pulp lifters are also an area that can have significant scouring. If you dont operate your mill correctly all bests are off - ball on liner impact, too large a ball, critical size material in a SAG mill etc..

Regards

Todd Harvey - Global Resource Engineering http://www.global-resource-eng.com

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