Home > Gekko gravity box package for Gold Fields’ Agnew plant

Gekko gravity box package for Gold Fields’ Agnew plant

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article image Gold Fields’ Agnew project - an example of Gekko’s ability to provide a turnkey solution
A new generation ILR2000 batch automatic unit from Gekko Systems has been installed at Gold Fields’ Agnew gold plant as part of an upgrade of the existing ILR unit.

The upgraded flowsheet also features the implementation of Gekko’s innovative Mag-Screen technology. The plant highlights Gekko’s operating philosophy to feed the gravity circuit with cyclone feed material as opposed to cyclone underflow materials.

Key benefits include:

  • Fine free gold that would otherwise be entrained into the cyclone overflow stream, passes through the gravity circuit
  • Screening and centrifugal concentrator efficiency is higher at lower density
  • Gekko’s Gravity Box design and specifically the height, is not limited by the existing cyclone tower, allowing the gravity circuit to be designed without external influences
  • Gravity circuit is fed a fully homogenised product that is inclusive of ‘all’ free gold in the circulating load
Recent results from the gravity upgrade have shown a significant step change benefit from a rise in recoveries (nominal 20-30% gravity recovery benefit and 1.0-1.5% benefit to overall plant recovery).

Gekko has provided a complete turnkey solution at the Agnew plant comprising of metallurgical test work review, flow sheet design, engineering, manufacturing, construction, installation, commissioning as well as aftermarket service and support. Additional work is on to ensure that the circuit is optimised to its full potential.

Gekko’s Gravity Box package offers benefits in both greenfield and brownfield operations, making it ideal for instances when a gravity and intensive leach circuit requires upsizing or refurbishment. The solution is becoming increasingly popular with engineering companies as it offers them a complete modular circuit supply inclusive of all the gravity circuit requirements, saving them significant time and money with the added benefit of utilising Gekko Systems’ specialised gravity knowledge and design skills.

Gekko Systems specialises in the design, development and distribution of innovative mineral processing equipment and systems with particular focus on gravity separation.

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