These high-throughput centrifuges use Ferralium® 255 in the hub, bowl and cover, where process conditions are most challenging, and it has performed successfully in this application for more than 20 years.
Fluid-Quip, located in Ohio, USA, design and supply capital equipment for the pulp, paper and corn wet milling industries, with a particular focus on mills, strainers and centrifuges.
Corn milling is a long-established process, using physical stages such as grind mills, screens, cyclones, presses and filters to separate the starch from the by-products of germ, fibre and gluten. It is a wet process, so water - often combined with SO2 from the steeping stage - creates a corrosion risk. The greater challenge is erosion and abrasion as slurry moves through each stage, particularly in centrifuges with high relative flow rates and the potential for cavitation.
Selecting metals that combine good corrosion resistance with exceptional erosion-corrosion resistance is critical. These centrifuges, capable of processing 340m3/hr, use Alloy 316 for their outer components but Ferralium® 255 throughout the hub, bowl and cover, where conditions are most demanding.
