Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1994-11-10
1996-05-14
Nguyen, Hoang
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34386, 432118, 366 25, 366 57, D06F 5800, B28C 546
Patent
active
055156207
ABSTRACT:
An apparatus and method for operating a rotatable drying drum are disclosed herein. The drying drum has a burner for generating hot gases of combustion for flow through the drum to dry aggregate. The drum includes identical drying flights each having a generally U-shaped body having side walls extending from opposite edges of a base and terminating in first and second edges having different configurations and consequent different veiling effects in the dryer by securing the flights in one of a plurality of orientations within the drum. By reorienting the identical flights within the drying zone of the rotary drum dryer, the veiling patterns of the aggregate across the drum may be altered, hence adjusting the exhaust temperature.
REFERENCES:
patent: 3641683 (1972-02-01), Preeman
patent: 4189300 (1980-02-01), Butler
patent: 4293228 (1981-10-01), Swisher, Jr. et al.
patent: 4307520 (1981-12-01), Lutz
patent: 4995809 (1991-02-01), Filges et al.
patent: 5083382 (1992-01-01), Brashears
patent: 5380082 (1995-01-01), Milstead
patent: 5380084 (1995-01-01), Milstead
Gencor Industries Inc.
Nguyen Hoang
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