A model to estimate milling unit throughput

摘要

A model of the fibre flows through a milling train has been develop. The model includes the flow of fibre suspended in juice streams that is recirculated along the milling train as part of the imbibition system. By including the recirculated fibre, the model is capable of estimating the fibre rate being processed by each milling unit. Using typical fibre contents for all fibre streams, the second mill is identified as the milling unit that processes the greatest fibre rate. This mill processes the fibre in the expressed juice from the first three mills. While it is not neceassary to known the amount of fibre recirculation for most milling train calulations, it is necessary to account for fibre recirculation when comparing factory results to outputs from fundamental milling models. Consequently, this model is likely to be of benefit to ongoing research to better understand the milling process.