Title: Rotary dryer for stringy material

Abstract: There is provided a rotary dryer having an elongated rotatable tubular shell, the shell being axially subdivided into zones including a feed zone, a material distribution zone and at least one drying zone. In the drying zone there is provided a plurality of radially inwardly extending flight support members, the leading edges of which face the inlet end of the shell and extend inwardly and rearwardly from the inner surface of the shell toward the central axis thereof whereby hang up of fibrous material on the leading edges thereof is minimized. A plurality of longitudinally extending flights is secured to each of the support members.

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Inventors: Weimer, Ervin C. (Denver, CO, US)
Porter, Stuart M. (Denver, CO, US)
Hayes, Clark G. (Denver, CO, US)

Application Number: 528336
Filing Date: 1974-11-29
Publication_date: 1976-04-20
Assignee: Stearns-Roger Corporation (Denver, CO)
Primary Class(es): 34/130 34/135, 366/228, 432/118
Other Classes:
US Patent Ref:

1332137	Feb, 1920	Newhouse	34/137.
1883722	Oct, 1932	Greisen	34/134.
2246252	Jun, 1941	Hummel	34/109.
2578166	Dec, 1951	Bill	259/3.
2810968	Oct, 1957	Pitt	34/109.
3245154	Apr, 1966	Bojner et al.	34/109.
3258253	Jun, 1966	Brow, Jr.	259/175.
3829066	Aug, 1974	Phillips	259/3.

Other Refs:
Primary Examiner: Dority, Jr., Carroll B.
Assistant Examiner: Schwartz, Larry I.
Attorney: Sheridan, Ross & Fields