Cavex 2 hydrocyclone increases volumetric capacity up to 30 per cent

alMost 25 Years after tHe orIGINal CaVeX® HYDroCYCloNe reVolUtIoNIzeD ClassIfICatIoN, CaVeX® 2 WIll INtroDUCe a steP-CHaNGe IN PerforMaNCe aND sUstaINabIlItY, WItH Water aND eNerGY saVINGs

the launch of Cavex® 2 marks a new generation of hydrocyclones. like the original Cavex® hydrocyclones did more than two decades ago, Cavex® 2 introduces new geometric features which offer performance unmatched by any cyclone in operation today.

“our Cavex 1 design set an industry benchmark over two decades ago with its unique 360° laminar spiral inlet geometry, which significantly reduced turbulence. this design was so successful and desired by the market that it was widely replicated by competitors,” states Debra switzer, global product manager for hydrocyclones at Weir Minerals. “following years of research, development and trials, we have improved upon this design with the creation of lIG+ inlet and chamber design. this unique design produces a more stabilized flow pattern, further reduces turbulences and friction throughout the hydrocyclone, and provides up to 30 per cent additional capacity.”

the advanced lIG+™ design (patent pending) enables the Cavex® 2 hydrocyclones to classify up to 30 per cent more feed slurry, while occupying the same footprint as competitor hydrocyclones. Ultimately, operators can now achieve more throughput with fewer operating hydrocyclones, reducing the upfront CaPeX.

Cavex® 2 hydrocyclones allow operators to increase capacity up to 30 per cent without altering its footprint.

the new design has taken into consideration the shape and angle of the hydrocyclone to ensure particles report to the correct stream. this reduces recirculation and misclassification, taking separation efficiency to the next level.

“Cavex 2 allows our customers to do more. a more sustainable circuit, with lower energy and water requirements, and expand the capacity of their existing circuits, without increasing the footprint of the cyclones or clusters. It’s the kind of generational engineering leap that will change the way circuits are designed for decades to come,” says switzer.

engineered for future mine, Cavex® 2 takes advantage of Weir Minerals’ synertrex® IIot technology, which enhances the overall performance of the hydrocyclone. armed with this technology, operators are automatically alerted to roping or blockage conditions ahead of time, ensuring the hydrocyclone runs under the most optimal operating conditions.

“to minimize the amount of bypass that is produced in any hydrocyclone, it is favourable for it to operate in the semi-roping condition. this is often difficult to do continuously because any upset in the hydrocyclone’s feed conditions could move it into the roping condition, but with synertrex this balancing act can be closely managed,” adds switzer.

Cavex® 2 hydrocyclones can be customized to suit almost any application, with a variety of spigots, vortex finders, and liners. liners are available in a range of material options, including Weir Minerals’ proprietary r55® rubber compound or linatex® premium rubber, both of which have proven to outlast competitors elastomers in similar applications. liners can be replaced via a “snap-in” system which requires zero adhesive, while smaller models (400CVD and below) are available with moulded fibreglass housings.

“every stage of the Cavex 2’s design has been guided by the needs of our customers. as a consequence, it has been tested in multiple mining applications throughout the globe. these tests revealed outstanding results of up to 30 per cent additional capacity,” says switzer. “Decreasing ore grades and increasing need to reduce both water and energy usage have created the need for a low-maintenance, highly efficient hydrocyclone which can be readily

retrofitted into existing circuits to increase throughput and maximize returns. I can’t wait for our customers to see what this new range is capable of.”

Cavex® 2 hydroyclones are now available to increase capacity of mines across the globe. for more information, visit www.cavex2.weir.

About Cavex® hydrocyclones

Introduced to the world in 1998, the Cavex® hydrocyclone design delivers maximum efficiency, maximum hydraulic capacity, and long wear life. the laminar spiral inlet geometry design provides a natural flow path into

Above: Cavex® 2 hydrocyclone installed at a site in Russia. Left: Cavex® 2 hydrocyclones installed at a mine site in South Africa.

the Cavex® hydrocyclone. Its unique shape has no sharp edges or square corners and allows the feed stream to blend smoothly with rotating slurry inside the chamber. the result is greatly reduced turbulence throughout the entire hydrocyclone, creating even wear, long life, and efficient classification. today, Cavex® hydrocyclones can be found on mines across the world.

About The Weir Group PLC

founded in 1871, the Weir Group PlC is a premium mining technology business whose purpose is to make customers’ operations more sustainable and efficient. the group is ideally positioned to benefit from structural trends that support long-term demand for its technology, including the need for more essential metals to support economic development and carbon transition. Weir’s highly engineered technology enables these critical resources to be produced using less energy, water and waste, reducing customers’ total cost of ownership. the group has 13,000 employees in over 50 countries and has been listed on the london stock exchange since 1946.

for more information, visit www.global.weir.s