Indirect-heat thermal processing of particulate material
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United States of America Patent
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Nov 12, 2013
Grant Date -
Nov 8, 2007
app pub date -
May 5, 2006
filing date -
May 5, 2006
priority date (Note) -
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Abstract
A method and apparatus for indirect-heat thermal processing of material, such as a dryer or evaporator for treatment of particulate material, is provided. In one embodiment, a dryer for drying particulate material comprises a plurality of heat transfer plates arranged in spaced relationship for the flow of the material to be dried therebetween. Each heat transfer plate is provided with an inlet and an outlet for the flow of the heating fluid through the plates. A purge fluid delivery system provides a flow of purge fluid, such as air, gas or steam between the plates in a direction across the direction of flow of the material to be dried. The purge fluid delivery system provides a flow path for the purge fluid which is isolated from the flow of the heating fluid through the plates. A method for the indirect-heat processing of particulate material is also provided.
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