Project Notes

Peritas were engaged by Process 26 to integrate the structural elements of a 500,000 tpa gravity gold circuit into an existing Ni-Cu flotation plant.

The scope included maximizing the reuse of existing equipment. In conjunction with Artemis, a process flow diagram and mass balance were developed for the integrated gold circuit. Peritas performed all civil & structural, engineering for the gravity circuit integration.

Onsite activities consisted of the following:

• Installation of all concrete and civil works
• Refurbishment of primary and secondary crushing station
• Integration of a new Metso HP200 tertiary crusher
• Structural audit & repairs to existing plant in accordance with DMIRSrequirements
• Replacement of RE Wall with mass retaining wall
• Refurbishment of existing mills
• Supply and installation of DSM screen and cyclones for mill classification
• Supply and installation of gravity circuit feed conveyors
• Supply and installation of gold room and security system
• Redesign and refurbishment of HV Electrical distribution network
• Refurbishment of LV electrical reticulation system
• Upgrade of SCADA system
• Relocation and installation of new 10m tails thickener
• Raw water dam refurbishment
• Air and water system upgrade