Adjustable flights with dams for rotary dryers

Details Adjustable flights with dams for rotary dryers Adjustable flights with dams for rotary dryers

1990-12-11

1992-01-28

Bennett, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34136, 432118, 110246, 110226, F26B 1300

Patent

active

050833820

ABSTRACT:
The rotary drum dryer includes a plurality of circumferentially spaced flights in each of a plurality of axially spaced flight sections. A radially inwardly directed dam is interposed between each flight section and serves as a pivotal mount for the flights of each section. The dams are provided with arcuate slots having a plurality of detent positions arranged about mounting holes for pins secured to the flights and forming the pivot axis therefor. The angular position of the flights is adjustable by locating bolts on the flights in selected detented positions in the arcuate tracks. The combination of pivotally mounted flights and dams affords more uniform veiling across the drum interior and provides efficient heat transfer to the aggregate from the hot gases of combustion.

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