International Sugar Journal

Experience gained from perforated mill rolls in Réunion* [Full subscriber]

Abstract         Perforated rolls (also known as Lotus rolls) have been in use for some time in sugar mill tandems.  High drainage rates were expected when such designs were provided.  However, blockages often occurred, and this design of mill rolls did not spread worldwide.  Nowadays, improved design of shell materials, of holes and juice drainage capacity reduces blockages.  In Réunion, the two sugar mills implemented perforated rolls in their extraction processes in 2017.  The main objectives were to improve juice drainage and reduce maintenance costs of the Messchaert grooves.  In the Bois-Rouge sugar factory (bagasse diffusion), one was installed as a…

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