Construction of the original diamond-processing
facility at the Damtshaa
mine in 2002.

Contract to double the diamond processing capacity at Damtshaa

The Debswana Diamond Company has awarded BATEMAN a lump-sum turnkey contract, valued at R84.3 million, to double the diamond-processing capacity at the Damtshaa Mine near Orapa, Botswana from 200 t/h to 400 t/h of kimberlite ore.

The existing facility at the mine was supplied by BATEMAN towards the end of 2002 as a greenfields project and was designed at the time to be readily upgradeable.

The new facility at the mine will essentially provide a second 200 t/h stream comprising circuits for secondary crushing, stockpile belt feeders, thickening and dense-media separation (DMS), with conveyors to feed the DMS plant and remove the tailings. The whole plant will be fully automated and economical to operate. Infrastructure, such as an electricalplant store and extensions to the existing motor-control centre and plant control systems, will also be provided.

Working with a mine owner’s team, BATEMAN is responsible for the entire project, from design to procurement,supply, construction, commissioning and process guarantee at the increased throughput.

BATEMAN will also supply the conveyors and the DMS plant. The DMS plant will be one of the new 200 t/h Mega Bateman Modular Plants featuring a two-stream system to enable it to continue to operate at 50 % capacity during maintenance of the other half. The plant will be fully assembled and tested in Johannesburg before its modules are conveyed 1,000 km by road to Damtshaa and reassembled at the mine.

A locally based company, Geoflux (Pty) Ltd, will be undertaking the civil and structural design in partnership with Bateman Projects (Botswana) (Pty) Ltd. The objective of this arrangement is to facilitate the transfer of skills to the citizens of Botswana and improve their capacity to contribute to future naturalre source beneficiation projects.

The contractual start of the project was in November 2005 and the plant is scheduled to be commissioned in the last quarter of 2006. A strong factor in the decision to award the contract to BATEMAN is its continued association with the mine through studies and projects which commenced in the late 1990s.

For further information, please contact: James Neuwenhuys, BATEMAN Senior General Manager – Diamonds, Mokenti Roborokgwe, BATEMAN Country Manager or Bob Menzies, BATEMAN Senior Project Manager on +27-11-899-9111

or email diamonds@BatemanEngineering.com.