Scope of Work
GR Engineering was awarded a design and construct contract by OZ Minerals to supply a continuous production paste backfill plant for the Prominent Hill copper-gold mine.
The paste plant is designed to cyclone a proportion of the copper-gold plant tailings to provide a suitable paste plant feed and then filter and repulp the tailings in a controlled fashion with cement. The plant has a design throughput rate of 146 dry t/h of tailings at a paste feed of 77% solids to produce 90 m³/h of paste.
GR Engineering used in house design systems to model and design the paste plant enabling a high level of review from all discipline and process engineers to ensure design errors, omissions and clashes were eliminated to the maximum extent prior to fabrication and installation.
Structural, mechanical, piping and electrical installations were completed and managed on site by directly hired GR Engineering personnel. Earthworks and civil installations were subcontracted to third parties and managed by GR Engineering supervisors.
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Prominent Hill Paste Backfill Project
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