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
Estimating the term…
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.
Claims36
A system for removing surface moisture from particulate, the system comprising:
- a plurality of lifting blades for moving the particulate through system, the particulate generally drying as it is moved through the system, a lifting blade having a trailing edge, a leading edge, an attached edge and an outside edge;
- wherein at least a portion of the lifting blades in proximity to a particulate feed to the system form at least one helical configuration;
- and
- wherein at least a portion of the 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 dryer system for removing surface moisture from particulate comprising:
- a dryer comprising a rotor, the rotor comprising a plurality of lifting blades for lifting particulate through the system, the particulate generally drying as it is lifted through the system;
- wherein at least a portion of the lifting blades form at least one helical configuration.
A dryer system for removing surface moisture from particulate, the dryer system comprising:
- a centrifugal dryer having a particulate lifting cylindrical rotor assembly positioned within a foraminous membrane, the cylindrical rotor assembly comprising a cylindrical rotor assembly having a plurality of lifting blades for lifting the particulate through sections of the centrifugal dryer, the particulate generally drying as it is lifted through each section;
- wherein the cylindrical rotor assembly of the centrifugal dryer comprises at least two sections, a wet particulate feed section into which the particulate enters the centrifugal dryer, and a drying section located above the wet particulate feed section, wherein the number of lifting blades per a given length of the wet particulate feed section is less than the number of lifting blades per the same length of the drying section.
A dryer system for removing surface moisture from particulate in the form of a slurry of particulate and fluid, the dryer system comprising:
- a dewaterer having at least one deflection device within a foraminous membrane, and a dewatered particulate discharge chute, the dewaterer removing bulk fluid from the slurry of particulate and fluid;
- and
- a dryer for drying moisture from the particulate;
- wherein the dewatered particulate discharge chute of the dewaterer comprises a cylindrical foraminous dewatered particulate discharge chute.
A system for removing surface moisture from particulate in the form of a slurry of particulate and fluid, the system comprising:
- an agglomerate catcher for catching particulate agglomerates from the slurry of particulate and fluid;
- a plurality of lifting blades for moving the particulate through system, the particulate generally drying as it is moved through the system, a lifting blade having a trailing edge, a leading edge, an attached edge and an outside edge;
- wherein at least a portion of the lifting blades in proximity to a particulate feed to the system form at least one helical configuration;
- and
- wherein at least a portion of the 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.
Dependencies are inferred from the claim text.