## SAG Mill Liner Packing Metallurgist & Mineral Processing

If you have SAG "dry" application, where % of moisture in the ore is very, very low and the charge is fluidized with ventilated air, I would say the chance of packing is very small Then again, packing of shell liners will have major effect on the charge motion, while packing of F/E liners, shouldn't compromise grinding too much other than reducing available volume

## Introduction to Mineral Processing or Beneficiation

· Autogenous (AG) and SemiAutogenous (SAG) milling has seen increased use in recent years, especially in large mineral processing operations These mills typically have a large diameter relative to their length, typically in the ratio or 2 or 25 to 1 AG mills employ ore as the grinding media However, one the challenges with AG mills is that properties, such as hardness and abrasiveness, of

## Gearless Mill Drives

Capacity: SAG Mill 1000 t/h Ball Mills 1000 t/h Consultant: Bechtel, USA Mill Builder: FFE Minerals, USA Mill Size: SAG Mill 38 feet/11,58 m Ball Mills 24 feet/7,32 m Ore processed: Copper/Zinc Drive Rating: SAG Mill 20,1 MW, 9,23 rpm Ball Mills 11,2 MW, 11,38 rpm Award of Contract: March 1999 Start of Operation: June 2001 ABB’s scope of supply: Four complete Gearless Mill Drive Systems