초록 ▼

A single pass rotary dryer in which heated gas and a moist material is blown through a rotating drum. The drum has inwardly extending flights or vanes which deflect particles of the material back into the gas flow. A flight is oriented at an oblique angle to the longitudinal axis of the drum in orde

A single pass rotary dryer in which heated gas and a moist material is blown through a rotating drum. The drum has inwardly extending flights or vanes which deflect particles of the material back into the gas flow. A flight is oriented at an oblique angle to the longitudinal axis of the drum in order to present an ascending ramp to incoming material. There is a core oriented longitudinally in the drum. The core may be hollow and perforated with holes through which particles of material may pass. The core may have flights and a narrowing closed end facing the incoming material.

대표청구항 ▼

[ We claim:] [1.] A single pass rotary dryer for drying moist material, the dryer comprising:(a) a blower in communication with a supply of a gas whereby the blower establishes a moving gas stream;(b) a heater disposed to heat the gas;(c) a feeder disposed to discharge the material into the gas stre

[ We claim:] [1.] A single pass rotary dryer for drying moist material, the dryer comprising:(a) a blower in communication with a supply of a gas whereby the blower establishes a moving gas stream;(b) a heater disposed to heat the gas;(c) a feeder disposed to discharge the material into the gas stream whereby the gas stream carries the material in the same direction as the gas stream;(d) a drum rotatable in an operating direction about a longitudinal axis, the drum having an inner wall, an inlet in communication with the stream of gas and material and an outlet for discharging the stream of gas and material; and(e) a flight which extends inwardly from the wall of the drum and is aligned at an oblique angle with respect to the longitudinal axis.