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Relationship between energy and size reduction of grains using a three-roller mill


Transactions of the ASAE 37(4): 1243-1248
Relationship between energy and size reduction of grains using a three-roller mill
The net specific energy consumption, NSEC (energy per unit mass of milled product) and energy utilization, EU (energy per unit surface area of milled product) of a three-roller mill for grinding sorghum, wheat, and corn were evaluated Four mill variables, namely fast roll speed, differential, roll gap setting, and corrugation configuration were considered The NSEC and EU both decreased as the fast roll speed increased. They increased as the roller gap setting was reduced and as the differential speed decreased. When the rolls were set on dull-to-dull rather than sharp-to-sharp configuration, the NSEC increased, but the EU decreased Dimensional analysis was used to develop a mathematical relationship between energy and size reduction for each type of grain in a three-roller mill based on particle sizes of the material and milled products. The experimental data correlated well with the model.


Accession: 002477768



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