Dryer

Details Dryer Dryer

1975-06-20

1977-03-29

O'Dea, William F.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

165 88, 165 89, 165 90, 432107, F26B 1104

Patent

active

040141063

ABSTRACT:
A dryer for removing moisture from wet fine particles, such as coal, comprising an insulated stationary cylinder in which an open-ended metallic cylindrical tube is rotated, coaxially in an essentially horizontal position. Wet particles are introduced in said open end while hot air is circulated between the stationary cylinder and the tube. Metallic balls or the like contained in the rotating tube are interspersed in the wet mix. Perforated fins and baffles extend from the outer wall of the tube to aid in transferring heat, by conduction, to the tube and metallic balls to evaporate the moisture before the coal is discharged at the opposite end through a screen section of the tube. Additives may be introduced into the wet mix to coat the dried coal particles to prevent dust or prepare the mix for pelletizing or briquetting.

REFERENCES:
patent: 1487248 (1924-03-01), Lantz
patent: 1728495 (1929-09-01), Lindhard
patent: 1748178 (1930-02-01), Hume
patent: 2265358 (1941-12-01), Denning
patent: 2872386 (1959-02-01), Aspegren
patent: 3288452 (1966-11-01), Stewart
patent: 3401923 (1968-09-01), Bearce

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