Developed by Coperion Waeschle, the Bulk-X-Change bulk materials heat exchanger is being used by a fertilizer manufacturer for an inorganic product. Recently installed in a fertilizer production plant, which operates at an increased output rate of 60 t/h, the heat exchanger serves to cool the fertilizer following the crystallizing and drying stages. Its purpose is to prevent the formation of lumps during silo storage and hence improve product storability and handling. The Bulk-X-Change bulk materials heat exchanger is a vertical tubular heat exchanger. The fertilizer to be cooled flows downwards through the smooth-walled tubes, while the cooling medium flows upwards on the outsides of the tubes. A specially developed product distribution plate ensures the trouble-free gravity feed of the fertilizer into the tubes by distributing it gently and evenly over the entire nest of tubes. Special technical features, such as a dry air counterflow system, for example, not only increase operating reliability but also reduce maintenance costs. Thanks to the operating characteristics, the bulk materials heat exchanger is suitable for the cooling or heating of numerous other products, e. g. minerals, detergents or foodstuffs.
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