OK Tedi Pyrite Plant Debottlenecking Project

The debottlenecking project was a collaborative effort between Worley Parson’s and Como. Como prepared a revised design criteria and issued to WP for the rectification project.

Key improvements were:

• Replace primary flotation concentrate and cleaner flotation feed hoppers with larger ones.
• Install dissipaters on end of rougher flotation cell concentrate launders.
• Install new Warman pumps 300LF on primary flotation concentrate and cleaner flotation feed hoppers to increase pumping capacity.
• Replace pyrite thickener feed launder with large diameter pipe to increase volumetric capacity.
• Replace TPP thickener feed drop box with larger drop box to prevent overflows.
• Install Outotec Flow boosters to primary and rougher flotation cells.
• Install Sonartrak flowmeters on primary flotation concentrate and cleaner flotation feed pumps.
• Trial of Cytec defoamer to control spillage from primary flotation concentrate and cleaner flotation feed hoppers by decreasing froth factor and increasing pump efficiency.