Abstract: In a method for centrifugally dehydrating a pallet or the like, the pallet or the like is held on a diagonal line thereof, and is rotated in a state where the diagonal line is substantially aligned with an axis of rotation, thereby removing a liquid adhered thereto.
Abstract: The present invention relates to a process for drying protein crystals starting from an aqueous protein crystal suspension, which comprises drying the protein crystal suspension in a centrifugal dryer, where the protein crystals, after they have been filtered off from the protein crystal suspension, are brought into contact with a drying medium which consists of a mixture of water and a nonaqueous solvent which is miscible with water in any ratio and which has a lower vapor pressure than water. In the process, a drying gas which has been moistened with water is advantageously used. The protein crystal suspension is advantageously converted into a fluidized bed for the purpose of drying.
January 13, 2000
Date of Patent:
June 25, 2002
Aventis Pharma Deutschland GmbH
Rolf Deusser, Peter Kraemer, Horst Thurow
Abstract: A method and apparatus for controlling the drying cycle of a dryer by utilizing fuzzy logic control. Control is accomplished by first monitoring the moisture level of a clothes load in the dryer. From the monitored moisture information, variables such as the elapsed time from the start of the drying cycle to a point when no significant moisture is detected for a specified time period and the number of times higher moisture registrations occur during another specified time period are determined. Based on the determined variables, fuzzy logic is used to determine characteristics particular to the clothes load being dried, such as size of the load. Using the determined characteristics in conjunction with user settings more accurate control of the time of drying heat application, reduced drying heat application and cool down time can be accomplished.
June 21, 2001
January 3, 2002
Christopher J. Woerdehoff, Patrick J. Glotzbach, Andrew C. Reck, Joseph M. Szynal, Beth A. Maddix
Abstract: A centrifugal dryer (10) has a plurality of conveyors (12) that are arranged inside a pair of trunnion rings (36) such that the conveyors (12) are shingled to form a polygon shaped cylinder (14) that rotates about the central axis (A—A) of the trunnion rings to create centrifugal forces on produce, or other material conveyed on the conveyors. Each conveyor (12) has an elongated endless porous belt (18) driven in one direction by a one-way bearing to convey material from the inlet end to the outlet end of the conveyor. A crank arm (56) extends from each one-way bearing and rides in a gimbal ring (50) which causes reciprocating motion of the crank arm (56) to intermittenly advance the conveyors (12) as they rotate. The gimbal ring (50) can be positionally adjusted to vary the amount each conveyor (12) advances per revolution, or it can be set in a neutral position where no movement is imparted to the crank arms (56), thereby allowing the dryer to process in a batch mode.
November 17, 2000
Date of Patent:
October 9, 2001
James Edward Aikins, Warren Ahlson Aikins
Abstract: A leafed vegetable dryer includes an entrance for products, an exit for the products and one or more transporters for transporting the products between the entrance and the exit. The transporters have the form of a centrifuge. A transport driver is utilized to drive the transporters and a centrifuge driver is utilized to drive the centrifuge.