Improving AG/SAG Mill Performance with Optimised Pulp Discharger Design
Nowadays, the more successful plants are those who have adopted effective and efficient strategies to optimise their plant operation. As the heart of the plant could be viewed as the milling/grinding area, one of the key steps in plant optimisation is, therefore, ensuring the mill is operating properly. In the past, when primary, secondary and tertiary crushers fed material directly to large ball mills, the energy efficiency of the concentrator was determined for the most part by the ball mill operation, whereas now the energy efficiency of a plant often rests largely on the semiautogenous grinding (SAG) mill operation. As a result, mines have shifted their emphasis in optimization from ball mills to SAG mills.The grinding mills energy efficiency essentially depends on ore characteristics and the discharge rate of broken particles, which in turn depends on how efficiently the discharge pump (grate and pulp lifters) operates. The essential function of pulp lifter being to transport the broken material and slurry out of the mill, its design optimization therefore affects the discharge capacity (or mill throughput) of AG and SAG grinding mills.This paper will discuss how the optimised design of the pulp lifter/discharger has helped to eliminate material transport issues such as flow-back and carry-over of slurry and pebbles to increase the energy efficiency of SAG mill using the actual operational data.
Autogenous Semiautogenous Grinding Pulp lifters Grates
S. Latchireddi
Outotec (USA) Inc.. USA
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
511-518
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）