Patent ID: 9506691
Filing Date: 2016-11-29
CPC Classification: F26B

Claim Text:
1. A method for drying particulate matter, the method comprising: delivering particulate matter to a dryer; heating a fluidizing gas in a heat exchanger located outside the dryer; delivering a first portion of heated fluidizing gas through the dryer to fluidize the particulate matter; heating the particulate matter in the dryer with the first portion of fluidizing gas to a temperature between about 15° C. and about 200° C. to remove water from the particulate matter; further heating a second portion of heated fluidizing gas; delivering the second portion of heated fluidizing gas to an upper portion of the dryer to control humidity within the upper portion of the dryer; removing water vapor and fluidizing gas from the dryer; removing fine particulates from the fluidizing gas removed from the dryer; removing water vapor from the fluidizing gas removed from the dryer; after removing fine particulates and water vapor from the fluidizing gas removed from the dryer, redirecting the removed fluidizing gas back to the dryer; and removing dried particulate matter from the dryer.