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DIGESTER TRAINS (North, Mid and South)
SPECS – Approximately 15’ ID X 80’ Height – Train consists of 3 total vessels
HISTORICAL DATA
Previous methodology required 3 separate contractor services, including heavy mechanical services (jackhammer) to remove bulk material, scaffolding, then light mechanical (needle scalers), followed by hydroblasting of the feed lines. This process took 36 days for all services to be performed.
JOB SCOPE
Removed material via special design high volume system with specialized tooling. This involved the design and special tooling necessary to run a 2000 HP 20,000 PSI system. Each component of this system is custom designed to handle these pressures and volumes. Material is a by-product of the alumina ore refining process, has a metal based make-up, and is among the hardest material in any process in our industry.
SYSTEM DESIGN
Utilize 2000HP 20,000 PSI system with specialized tooling to remove scale. The entire HiVol 20K system is specially designed and tested, and each component must be rated for the system specs. Waste is allowed to go to ground, and moved by bobcats to roll off boxes.
PROJECT PERFORMANCE/SUMMARY
Results have taken an average of 21 days, total. The Kmac process has eliminated the need of both heavy and light mechanical contractor services, with scaffolding occasionally required. Kmac has completed 3 sets of Digesters and piping.
In one performance, Kmac eliminated almost a month of downtime. Competitors have attempted to copy our system, has resulted in a total failure. Besides the increased runtime, Kmac has reduced the need for vessel entry, which minimizes hazardous exposure.
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