Patent ID: 11885243
Assignee: BILL & MELINDA GATES FOUNDATION
Field: Chemical engineering (Chemistry)
Classification: CPC F  B  C  Y | IPC B  C  F

Claim 0:
1. A dryer assembly for drying material, the dryer assembly comprising:
first and second tubular shells respectively containing first and second hollow carriers that each defines a bore, each of the hollow carriers receiving a hollow auger in the bore thereof, the hollow augers being drivingly coupled to be driven in rotation by one or more drive motors;each of the first and second tubular shells comprising a steam inlet in fluid communication with an interior of the hollow carriers and an interior area of the hollow auger;a first transfer housing connecting the hollow carriers of the first and second tubular shells at first ends of the first and second hollow carriers and a second transfer housing connecting the hollow carriers of the first and second tubular shells at second ends of the first and second hollow carriers;an inlet open to the bore of the first hollow carrier near the first end of the first hollow carrier;one or more outlets formed in a side of the second hollow carrier,wherein the one or more drive motors are connected to drive the hollow auger of the first hollow carrier to convey material in a direction from the inlet toward the second end of the first hollow carrier and to drive the first and second hollow augers to carry material in the first and second hollow carriers in opposing directions.