ALCAN GOVE THICKENERS TANKS
Rio Tinto (Alcan Gove Development)
Aug 06 – Sep 06
Major Projects Group (CMA Corp) was awarded the demolition of three existing Washers/Thickeners tanks, pipework, mechanical equipment, electrical, and concrete at the Alcan Gove site, to allow for the installation of a Jacketed Pipe Heater facility for slurry heating.
SCOPE OF WORK
The scope included the removal of all thermal insulation, packaging and transport to disposal area; the removal of all electric drives, power cables, pumps, mechanical and electrical (sub station) equipment; instrument controls and cable trays for recycling or scrap.
Process pipes were cut up into salvageable lengths for recycling or scrap. This 7 week program was completed with 7 labourers and cutters using 5 tonne and 3 tonne forklifts, a 30 tonne excavator, a manitou, boom lift and a 100t crane.
The work was completed with 24 hour shifts for both the insulation removal phase and the demolition phase. Initially, 2 men completed insulation removal during the day, including oxy-cutting, and trans- porting materials; and then 2 men completed insulation removal during the night. For the demolition component, 2 men completed demolition works during the day including oxy-cutting, operating and transporting materials; then 2 men completed demolition works during the night.
Major Projects Group (CMA Corp) was required to dismantle the structural steel in a cost effective manner, clear away all metal items and separate the recoverable and the scrap material, leaving only the concrete process slabs, footings, and foundations.
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