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US 7,007,402 B1Granted
System and method for drying particulate materials using heated gas
AssigneeNovatec, Inc.
InventorW. John Gillette
Life of this patent
Estimating the term…
Abstract
A system and method for drying particulate material in a dual flow hopper employs multiple flow paths by which heated gas is inserted into the hopper at different levels. Gas is extracted from the hopper and is divided for flow along two flow paths, one of the flow paths receiving gas that has been dried and the other flow path receiving gas that has not been dried.
Claims15
A system for drying particulate material, comprising:
- a chamber for the material to be dried;
- a first flow path by which heated gas is inserted into the chamber at a first level;
- a second flow path by which heated gas is inserted into the chamber at a second level;
- a third flow path by which gas is extracted from the chamber;
- a dryer;
- and
- a splitter that directs part of the gas in the third flow path to the first flow path after passing through the dryer and that directs another part of the gas in the third flow path to the second flow path without passing through the dryer.
4 more elements
A method of drying particulate material in a chamber comprising:
- supplying heated gas to the chamber along a first flow path;
- supplying heated gas to the chamber along a second flow path;
- and
- drying gas supplied along the first flow path, gas supplied along the second flow path being undried,
- wherein the gas supplied along the first and second flow paths is obtained by extracting gas from the chamber and dividing the extracted gas for flow along the first and second flow paths, respectively.
2 more elements
Dependencies are inferred from the claim text.