Mulligan, MC, Paterson, AJC & van Sittert, F 2009, 'An Integrated Approach to Paste Thickening and Pumping at the Voorspoed Diamond Mine', in R Jewell, AB Fourie, S Barrera & J Wiertz (eds), Proceedings of the Twelfth International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 169-178.
During April 2008, De Beers commissioned a new diamond mine near Kroonstad South Africa, known as
Voorspoed Mine. Water scarcity in the area required the use of paste thickeners at the end of the process to
recover as much water as possible. An integrated approach was used to design the paste thickeners and
slurry pipeline system that was needed to deliver as high a solids concentration as possible, while still using
This paper reviews the methods used between the paste thickener vendor (FLSmidth) and the slurry pipeline
design company (Paterson & Cooke) to maximise the recovery of water from the paste thickeners. Findings
on the project are shared in the following areas: test work; computer simulations; detailed design of the
equipment and control systems; and commissioning of the plant.
ASTM Standard C 143, 2000, Standard Test Method for Slump of Hydraulic-Cement Concrete, ASTM International,
West Conshohocken, PA, www.astm.org.
178 Paste 2009, Viña del Mar, Chile