Patent ID: 8412383
Filing Date: 2013-04-02
Classification: B29B,F26B

Abstract:
1. A method of dehumidifying granular materials, said method comprising the following operating steps: a) providing a plurality of dry air generators connected in parallel to a supply line and a return line for the distribution of air inside one or more hoppers fluidly connected in parallel to said lines and containing granular material to be dehumidified before being fed into processing machines; b) for each dry air generator estimating the flow rate of dry air which can be generated and/or a range of functioning at higher energy efficiency in terms of the flow rate of dry air which can be generated; c) calculating the flow rate of dry air needed for each individual hopper depending on the characteristics of the granular material contained therein; d) activating a number of generators sufficient to deliver altogether a total flow rate of dry air substantially equal to the sum of the flow rates needed for said one or more hoppers, the number of said generators and the generators to be activated being chosen depending on the flow rate which can be delivered by each of them and/or on their respective ranges of functioning according to an energy saving logic for the same total flow rate to be delivered; and e) deactivating the remaining generators.