Modern Quarrying Q1 2019

WET PROCESSING

The Combo™ wet processing system can produce up to three in-spec products from natural sand or, crucially, from crushed rock.

of stick-built structures to sand feed availability,” says Thomas Doyle, CDE product development engineer and Combo™ expert. “All six processing stages of the Combo™ plant have been conceived with low energy consumption as a must, whilst operators also benefit from exceptionally economical water consumption, with an incorporated water management unit that recycles up to 90% of used water directly into the system,” says Doyle. “With all modules working as a closed circuit, sand production is seamless, efficient and in specifica- tion every time. As valuable fines lost to ponds is a thing of the past, oper- ators can reduce the footprint of their ponds, save of their maintenance and therefore on downtime, speeding up production times and therefore return on investment.” “The Combo™ is the embodiment of the way in which CDE embraces a New World of Resource by producing the very best materials from available reserves, even from feed materials previously considered as waste or too difficult to process.” Safeguarding the human and the natural The option of using crushed rock as a feed makes the need for natural sand mining redundant in countries where it is illegal as the quality of the final product is on pa r with that of a final product generated from natural sand. The CDE Combo™ system is also designed to exceed health and safety standards, incorporating a range of features for easy, quick and safe access for plant maintenance.

bring a fresh approach to sand wash- ing. A compact installation that fulfils all wet processing needs from feed to final materials, CDE has combined its most advanced technological feats within a simple, one-touch system. With fast set up within small or large footprints and delivery of in-spec products every time, all the time, the Combo™ is fast becoming the wet processing sensation of 2018 thanks to its innovative design and techno- logical make up. All for one and one for all The Combo™ features patented technology that combines feeding, washing, grading, dewatering, water recycling and stockpiling onto one compact chassis; it allows to run the full feed to the final product process at one touch of a button, with up to three in-spec final materials ready for market straight from the belts – two sands and one aggregate product. Each Combo™modular plant is bespoke to the client’s needs, with a range of options that allow for tonnage flexibility to suit all sizes of operations – and anticipates future needs – from 30 to 250 tonnes per hour. A plug-and-play system that allows for unrivalled control of silt cut points thanks to a highly efficient cyclone- based process, the Combo™ tech- nology prevents loss of sand in the overflow and loss of valuable fines to ponds. Every grain of valuable prod- uct is retained in the system. “The Combo™ all-in-one materials washing plant marks a giant step towards helping customers resolve various issues from the bulkiness

Nicolan Govender, regional manager for sub-Saharan Africa at CDE.

Working conditions are made safe through automatisation of the plant via an on-board control panel housed in a double door stainless steel enclo- sure to ensure suitability of applica- tion for outdoors, even in the harshest environments. “For South African quarry operators, for flexibility and guaranteed results, the Combo™washing and water recycling solution offers presents the ideal alternative to sand screws and bucket wheels, with fast return on investment and the assurance that not one ounce of valuable material will be lost,” says Govender. “Pioneering a new materials wash- ing era, the Combo™ does not just benefit operators in terms of high effi- ciency and better-quality production, it also provides, in its compact but powerful way, a real answer to some of the most pressing socio-environ- mental issues of the 21st Century by offering an alternative to illegal sand dredging that contributes to both the protection of our natural resources and the safety of those whose liveli- hoods are tied to the sand business. “As the CDE Southern Africa team continues to grow, we are more than ever ready to provide each customer with a bespoke washing solution that will significantly increase their production with a fast return on investment, and we are even more connected to our market thanks to after-sales service excellence and engineering support right on our customers’ doorstep,” concludes Govender. l

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MODERN QUARRYING QUARTER 1 - 2019