The Energy Leadership Program’s Quarterly Awards ceremony for the mines was held on Tuesday, 7th April at the Core Shed.
The winning project at the mines was the water management project that reduced the total raw water energy consumption at the mines by R960 000 per annum.
Even though this may seem an insignificant amount, this equates to a substantial 51% reduction in raw water consumption at the mines. The project involved reducing the raw water required to produce each ton of Heavy Mineral Concentrate (HMC) at the mining ponds. Raw water is pumped from the Nhlabane pump station via 2 x 750kW and 2 x 700 kW water pumps to each of the four mining ponds, varying between 2km and 13km away.
RMM Manager, Mining Plants, Barend Joubert explained that energy savings were achieved through reducing the pressure set point and raw water consumption on the Nhlabane North line (pipe line towards the mining ponds) from 800 kPa to 700kPa thus reducing the energy used to pump the water.
Mathew Ngema, supervisor at the water operations department and Sithe Ntombela, engineer at mine services were awarded certificates in recognition of their outstanding contribution towards this project and playing a vital role in saving energy at the mines.
Andre Ravenscroft, Program Manager at Ensight thanked everyone for their continuous support in making energy efficiency part of the culture at RBM.