CHALLENGE

Issue: Mine production impacted by insufficient pump performance to meet required 300M3/hour flow.

Goals:

• Avoid purchasing additional pumps and reduce operational (electricity) costs
• Meet flow demand and reduce maintenance and operational costs

Root Cause: Over 20,000 hours of operation in acidic mine water with entrained solids degraded the pump internals and critical tolerances

SOLUTION

Preparation:

• Surfaces grit blasted to Sa 2.5 with 3 mil angular profile.

Application:

1. Apply ARCOR 2211 to rebuild pump back to tolerances where abrasion and erosion had damaged casing and impeller
2. Apply ARCOR 8507 in high wear regions to address abrasive suspended solids
3. Apply final topcoat of ARCOR S20 for additional corrosion protection and to improve flow efficiency

Results:

• Inspection Results: After repair, pumps operated at >94% of OEM efficiency with 3% less energy consumed
• Cost Avoidance: New pump installation/operation vs repair: $18k savings (per pump)

ROI = 45%