Devcon Maintenance and Repair Solutions - Sintemar
Devcon Maintenance and Repair Solutions - Sintemar
Devcon Maintenance and Repair Solutions - Sintemar
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Field Application Reports<br />
Products:<br />
Application Date:<br />
Customer:<br />
Industry:<br />
Location 140<br />
Ball Mill Trunnion<br />
<strong>Repair</strong> <strong>and</strong> Lining<br />
Combo Wear, Flexane® 80 Putty<br />
July 2002<br />
South American Copper Mine<br />
Mining<br />
Problem:<br />
The ball mill suffered extreme wear in the trunnion liner feed area, <strong>and</strong> in the area where it joins the mill.<br />
This wear threatened to endanger the system, since if the trunnion liner should be perforated, process<br />
water <strong>and</strong> pulp would enter the chamber between the liner <strong>and</strong> the trunnion, leading to critical wear <strong>and</strong><br />
equipment shutdown.<br />
Solution:<br />
The trunnion liner <strong>and</strong> joint area with the mill was grit blasted <strong>and</strong> cleaned with Cleaner Blend 300.<br />
<strong>Devcon</strong> Combo Wear FC beaded epoxy was mixed <strong>and</strong> applied 6-10 mm thick with a trowel. This was<br />
allowed to cure for 40 minutes, after which Flexane 80 Putty was applied in a 6mm coat. This was<br />
allowed to cure for a few hours <strong>and</strong> the mill was put back in operation.
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