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Kinross – Round Mountain SAG Mill Adaptive Control

Round Mountain

In summary, by using the KnowledgeScape SAG mill adaptive control system (GrindingExpert™), we were able to increase production, increase power draw through increasing the grinding efficiency of the mill.  These benefits easily justify the low cost of the system and system maintenance.  Randomized SAG mill performance monitoring was performed while the mill was running with and without GrindingExpert™ expert control.  Data during the thirty minute transition period when the SAG mill expert control strategy is enabled or disabled is discarded. Testing was performed to the standards found  here.

Below are the results:

Screen Shot 2014-08-28 at 9.50.01 AM

SAG mill optimization results

The key mill performance data is summarized in the following table. Clearly, the KnowledgeScape adaptive grinding control with has significant financial benefits.

Screen Shot 2014-08-28 at 9.49.40 AM

Using the KnowledgeScape adaptive SAG mill expert system on the grinding circuit, operations staff achieved a 2.8% increase in feed rate.  A 2.2% increase in mill power draw was recorded, and a 0.6% decrease in specific power (0.6 % increase in grinding efficiency) was observed.

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