Basic and detailed engineering. Expansion of El Porvenir Units from 4,900 to 7,500 tpd and Atacocha from 4,400 to 5,000 tpd.
The El Porvenir project includes facilities for the preparation of reagents, disposal of tailings and recovery of process water.
Primary, secondary and tertiary crushing circuit, replacement of crushers, installation of banana and simple shakers and repowering of conveyor belts. Fines storage; 2 hoppers of 1750 t and 600 t for El Porvenir and Atacocha respectively. Grinding circuit, 3 ball mills of 9.5’x12′, 4 hydrocyclones of 20″; belt and scale systems in both units. Flotation circuit, 3 conditioners of 100 m3, 5 Rougher cells of 50 m3 and pulp transfer pumps for El Porvenir; and 1 blower of 5,000 cfm for Atacocha.