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MBAA TQ http://dx.doi.org/10.1094/TQ-53-2-0502-01  |  VIEW ARTICLE
Optimized Dry Processing Using the Newest Generation of Grinding Equipment

Andreas Frank (1) and Roger Scheel (2). 1. Bühler AG, Uzwil, Switzerland. 2. Buhler North America, Plymouth, MN, U.S.A.

There is a significant potential for savings in modernizing the dry material handling and milling systems in breweries with older grain process systems. Saving energy and increasing yield are inseparably intertwined topics in this consideration. Using a modern grist mill can help achieve the desired granulation and thereby increase yield, but a suitable complete process solution is needed for perfect grist. This includes using separators and destoners to remove stones, sand, and lightweight and other foreign matter. An optical sorter is another possible optimization. This camera-based system separates foreign seeds, defective kernels, and mycotoxins as well as kernels with deoxynivalenol. Before grinding, the malted barley can also be conditioned, resulting in more elastic husks and therefore a higher volume of husks, which means shorter lautering times. Conveying the materials with a transport system that handles product gently also influences the raw material costs in a plant. A modern dry processing system not only reduces costs and increases production volume, it also limits product loss and maintains high standards of sanitation.

Keywords: Grist composition, Particle size, Grinding gap adjustment, Husk separation, Conveying system, Flow balancer, Optical sorting, Sanitation