Dryer system with improved throughput
AssigneeGala Industries, Inc.
InventorsCharles E. Aaron, Duane A. Boothe, John M. Linkenhoker, Kerry P. Morris, Samuel F. Hannah, Wayne L. Smith, Thomas C. Wenrich
Life of this patent
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Abstract
A centrifugal dryer that has improved throughput capacity resulting from the combination of a high angle agglomerate catcher with optional overflow, increased dewatering capacity, a cylindrical dewatering feed chute, a modified rotor design with positionally and structurally modified lifters in the feed and dewatering section, the drying and propagating section, as well as the pellet discharge section, and an efficient circumferential foraminous membrane.
Claims20
A dryer system for removing surface moisture from particulate comprising:
- a dryer comprising a rotor assembly, the rotor assembly comprising a plurality of lifting blades for lifting particulate through the system, the particulate generally drying as it is lifted through the system;
- wherein the rotor assembly comprises at least two sections, a lower, wet particulate feed section into which the particulate enters the dryer, and a drying section located above the wet particulate feed section;
- and
- wherein the lifting blades of the lower, wet particulate feed section have a blade angle of less than 45° defined by the inclination of the trailing edge of a blade above that of a plane drawn horizontally through the leading edge of a blade.
A rotor assembly for use in a dryer system, the rotor assembly comprising:
- a first plurality of outwardly extending lifting blades that form a wet particulate feed section, the first plurality of lifting blades being arranged in horizontal rows and configured to upwardly direct particulate entering the dryer system;
- and
- a second plurality of outwardly extending lifting blades that form a drying section positioned above the wet particulate feed section, the second plurality of lifting blades being arranged in horizontal rows and configured to upwardly direct particulate from the wet particulate feed section,
- wherein the first plurality of lifting blades have a blade angle of less than 45° defined by the inclination of the trailing edge of a blade above that of a plane drawn horizontally through the leading edge of a blade.
A rotor assembly comprising:
- a wet particulate feed section having a first plurality of outwardly extending lifting blades arranged in horizontal rows and configured to upwardly direct particulate;
- and
- a drying section positioned above the wet particulate feed section and having a second plurality of outwardly extending lifting blades arranged in horizontal rows and configured to upwardly direct particulate received from the wet particulate feed section,
- wherein the first plurality of lifting blades have a blade angle of less than 35° defined by the inclination of the trailing edge of a blade above that of a plane drawn horizontally through the leading edge of a blade.
Dependencies are inferred from the claim text.