The Gekko gravity recovery system, “consisting of rougher and scavenger IPJs and a cleaner unit”, at Ballarat Goldfields’ Woolshed Gully site works in a closed circuit with a vertical shaft impactor (VSI) and is designed to operate in future with either a second VSI or high-pressure grinding rolls crusher. A Gekko-designed and built intensive leach reactor plant recovers gold from sulphide concentrate.
The existing 600,000t/annum plant has been designed to accommodate rapid future expansion. Its construction impressed Ballarat Goldfields’ managing director Richard Laufmann, who said the depth of skills and facilities available on the project’s doorstep helped expedite the project. “I don’t think this could have been achieved elsewhere in the country within such a short timeframe,” he said.
Gekko formed a division, Spinifex Projects, headed by the site’s mill superintendent, to oversee construction and operation of the plant.