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 a series of physical processes such as grind mills screens, cyclones, presses and filters to separate the starch from the by-products of germ, fibre and gluten. The process is a wet-process, so the presence of water often combined with SO2 from the steeping process stage provides a corrosion risk. However, this is combined with a greater challenge of erosion and abrasion from the movement of the slurry through each stage, particularly in centrifuges with high relative flow rates and the potential for cavitation also.
Selecting metals that combine good corrosion resistance with exceptional erosion corrosion resistance is critical. Therefore, these high throughput centrifuges (capable of processing 340m3/hr) use Alloy 316 for their outer components, but Ferralium® 255 throughout in the hub, bowl and cover where the process conditions are most challenging. Ferralium® 255 has performed successfully in this application for more than 20 years.
If you would like more information about our Ferralium® 255, please get in touch today.