Patent ID: 7984566

Claim:
A material drying system comprising: a turbofan jet engine providing airflow; a drying tube operable with the turbofan jet engine for receiving the airflow and material to be dried, wherein the drying tube comprises a plurality of vertical tube sections, and wherein at least two of the plurality of vertical sections is connected by a generally horizontal arcuate section, wherein the drying tube is dimensioned to allow airflow and material moving upward one vertical tube section to reduce a speed of the solids within the one tube section and the airflow and material are accelerated within a downward second vertical tube section to increase a centrifugal force on the material passing through the arcuate generally horizontal tube section thus improving separation of particles; an air exchanger operable at the arcuate tube section, wherein the air exchanger comprises an exit tube removing a substantial portion of wet air from the drying tube, and an inlet tube injecting dry air into the drying tube, the inlet tube positioned downstream the exit tube, the air exchanger sufficient for removing wet air from the drying tube and replacing the wet air with a similar volume of dry air thus improving drying efficiency while maintaining the airflow; and a cyclonic apparatus having a generally cylindrical chamber operable with the drying tube for receiving the material to be dried therefrom.