Modern Quarrying Q4 2019

Owing to its compact size, it is easy to transport and set up.

separation of mineral sand. It has also been deployed at SAK in a limestone application, as well as at Alpha Sand Pretoria in a natural sand application. The Fisher Air Separator has successfully been tried and tested in the iron ore industry for the removal of super fines from 0-8 mm material, turning a waste product into a usable material, as well as assisting in the saving of water and chemicals in the final process. The machine was also deployed in the diamond mining industry to successfully reduce unwanted fines and to assist in the reduction of water usage in the final process. It is estimated that the saving on water usage could be as high as 80%. Dry versus wet processing Behrmann is of the view that for years washing has been the way the industry produces its fines and manufactured sands, but there are a lot of downsides. He says that with water in short supply, as well as pricey, along with managing

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QUARTER 4 - 2019 MODERN QUARRYING