Modern Mining September 2020

enhancements to the original Cavex hydrocyclone inlet geometry. Combining a best in class vortex finder and a longer inlet, the new design con- tributes to a reduction of turbulence throughout, which ultimately maximises plant recovery. Onsite trial results demonstrate that the Cavex 2 hydro- cyclone can increase capacity by up to 30%,” says Gabriel. Having successfully conducted extensive pilot and test work locally, Weir Minerals Africa has already received several orders and is introducing the new Cavex 2 to a number of mines. The rollout is ahead of schedule, with Weir Minerals only expected to officially launch the range later during this year. To further maximise production while minimising total cost of ownership, customers running Cavex hydrocyclones can benefit from Weir Minerals’ inno- vative Synertrex® IIoT platform.. Synertrex IIoT is a cutting edge platform which harnesses the latest digital technology to trans- form productivity, foresee risk and enhance performance. Utilising cloud computing, it involves placing smart sensors on the hydrocyclones and other Weir Minerals’ products, which gather criti- cal operating data for advanced analysis. The data is transformed into powerful insights, which are relayed to the customer through a digital interface.

It can identify problems before they occur, reducing downtime and optimising equipment performance across an entire circuit. “Remote management allows for simplified main- tenance. Wear and tear is easily monitored, and trouble spots detected before they escalate into major issues. The system can detect and predict poor hydrocyclone operating conditions, such as roping, to ensure operations maximise their through- put at all times,” concludes Gabriel. 

Key takeaways  Declining ore grades are driving an increased focus on efficient separa- tion processes in the mining industry  Weir Minerals Africa’s range of Cavex hydrocyclones is available in a wide variety of sizes and linings to meet each operation’s specific requirements  A key differentiator of the Cavex hydrocyclone is the unique laminar spiral inlet geometry designed to deliver sharper separation, maximum capacity and a longer wear life than conventional involute or tangential feed inlet designs  Weir Minerals has developed its Cavex 2 hydrocyclone, which is said to mark a new era in separation technology. With a sophisticated design, the hydrocyclone is specifically tailored to increase circuit capacity while providing optimal separation efficiency