Drying and gas or vapor contact with solids – Apparatus – Stationary receptacle or tube with agitator or conveyor
Patent
1989-10-18
1992-12-22
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
Stationary receptacle or tube with agitator or conveyor
34243R, F26B 1112
Patent
active
051724928
ABSTRACT:
A batch-type dryer, such as for sludge, having a generally upwardly-opening channel-like drying chamber which is closed at opposite ends. The chamber is defined by a generally U-shaped sidewall having an arcuate bottom portion generated about a radius so as to define a generally semi-cylindrical configuration. The edges of this semi-cylindrical bottom wall are joined to straight sidewall parts which project upwardly in generally parallel relationship. An auger-type rotor extends axially along the bottom of the chamber to agitate the material therein. A heat exchanger is associated with and extends around at least the arcuate bottom wall of the chamber. The U-shaped wall of the chamber has the central upwardly-extending plane thereof disposed at a selected angle, preferably about 30.degree., relative to the vertical so that the material, when the agitator rotates, remains in intimate heat-transfer contact with the arcuate bottom wall over substantially the full 180.degree. extent thereof.
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Mc Leod David
Peterson Thomas W.
Vanden Bos John W.
Bennett Henry A.
JWI, Inc.
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