4 Outotec SEAP Customer eNewsletter 1/2014

Outotec’s MillMapperTM is a globally patented technology and the industry standard in mill liner condition monitoring and modelling. Unique in the industry, it provides an unprec-edented level of information and allows your maintenance and oper-ational personnel to extend liner life cycles, optimize liner design, prevent liner failures, optimize throughput and improve the performance of your mill.

Problem:At one customer’s site, mill liners were scheduled for replacement during a planned shutdown. Following the implementation of MillMapper’sTM reline forecasting in the previous year, it was discovered that wear rates had accelerated on the plates and several liner segments would have worn to failure limits by the time the shutdown was due to take place.

Had the excessive wear gone unde-tected, a subsequent unscheduled stoppage would have occurred at considerable extra cost and with severe disruption to the site.

Solution:Due to MillMapper’sTM advanced forecasting capability, the scan carried out in the previous year accurately predicted the necessity for relines for several liners in the months leading up to the shut- down. This allowed plenty of time to organize a scheduled reline shutdown.

The forecasts shown in the table below illustrate the wear curve drawn using data from the sched-uled shutdown scan. It shows that shell liners had worn down to their reline limit at that time and would

have failed before the original planned shutdown with untold cost to the customer and safety risk to personnel.

Outcome:Using MillMapper’sTM reliable forecasting enabled well organized, preventative maintenance and saved this mill operator considerable expense and disruption to their process.

Relineforecasttable

Wearcurvederivedfromscandata

CASE STUDY: LINER FORECASTING AVOIDS UNSCHEDULED MILL DOWNTIME