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SPECIALIST EQUIPMENT EQUIPMENT


By devising a comprehensive upgrade programme, a Chilean mine has improved the availability of its VPA fi lters by 15%


MINE Makeover for 24 www.engineerlive.com F


aced with increased production demands, mine operator Compañía Minera Doña Inés de Collahuasi had the goal of increasing both


the availability and performance of its vertical plate pressure fi lters (VPA) in Puerto Patache, Chile. In collaboration with Metso, Collahuasi developed an upgrade plan aimed at improving the performance of the equipment, as it was beginning to be outdated after more than 20 years of operation. With a plan based on using the very latest technology, the desired objectives were met and resulted in a 15% increase in fi lter availability. T e project was carried out at Collahuasi’s mine in northern Chile, about 180km southeast of the port of Iquique, at an altitude of 4,400m. T is mining district has been in business since 1880 with the exportation of high-grade copper-silver vein systems. It is currently dedicated to the extraction and production of copper and molybdenum concentrate. During 2016, Collahuasi was the third-largest copper operation in the world and has one of the largest deposits of mineral resources of copper on the planet


(9.964 million tonnes). Collahuasi was facing the great challenge, common to many of the global mining groups, of optimising


Overhaul fi lter process


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