Particulate drying system
AssigneeWyoming Sawmills, Inc.
InventorsWilfried P. Duske, Ernest Schmidt
Life of this patent
Estimating the term…
Abstract
A blending chamber for blending fluids used to dry particulate matter has a chamber body with a first inlet opening, a second inlet opening, a third inlet opening, an outlet opening and a blending section. The blending section is arranged in a flow direction downstream of the first, second and third inlet openings, and upstream of the outlet opening. Fluids entering the first, second and third inlet openings are blended together in the blending section before exiting through the outlet opening. The bending chamber may be used to dry sawdust in a system that does not require a dedicated heat source.
Claims14
A particulate material drying system for drying particulates from a source of particulates to be dried, the system comprising:
- a heat source providing a primary source of heat for other than a particulate drying process and providing a secondary source of heat for use in particulate drying, the heat source having at least one heat supply outlet, the secondary source of heat being delivered in the form of at least one heated fluid from the heat source to the at least one heat supply outlet;
- a blending chamber comprising at least a first heated fluid inlet coupled to the at least one heat supply outlet such that heated fluid from the at least one heat supply outlet enters the blending chamber, the blending chamber comprising a second air input through which relatively cool air is delivered to the blending chamber, wherein the heated fluid and relatively cool air is blended in the blending chamber, the blending chamber having at least one outlet from which blended fluid which has been blended in the blending chamber is delivered from the blending chamber;
- a particulate dryer coupled to the blending chamber outlet and to the source of particulates such that blended fluid from the blending chamber at least partially dries the particulates in the dryer, the dryer having a dryer outlet from which at least partially dried particulates are delivered.
A particulate drying subsystem that uses recycled heat energy, comprising:
- a boiler that produces heat during operation;
- a blending chamber connected to the boiler, the blending chamber having at least a first fluid input and a second fluid input, the first fluid input being heated by the boiler and the second fluid input being ambient air from adjacent the blending chamber, wherein at least the first and second fluid inputs are blended together into an output flow within the blending chamber and output for drying particulates.
A sawdust drying subsystem that uses heat energy recycled from a boiler, comprising:
- a boiler steam circuit and an associated exhaust gas outlet through which heated exhaust gas from operating the boiler are released;
- a radiator positioned in the steam circuit, wherein steam from the boiler circulates through the radiator and releases heat to heat air drawn through the radiator to provide a source of warmed air;
- and
- a blending chamber having an exhaust gas input and a warmed air input positioned adjacent the radiator through which the exhaust gas and warmed air, respectively, are drawn into the blending chamber, wherein at least the warmed air and the exhaust gas are blended together within the blending chamber into an output stream for drying sawdust.
Dependencies are inferred from the claim text.