Descending bed of sub-divided solid material

Details Descending bed of sub-divided solid material Descending bed of sub-divided solid material

1974-11-01

1976-03-30

Camby, John J.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

34168, 432 98, F27B 1500, F27B 126

Patent

active

039472396

ABSTRACT:
A method of processing granular material by passing a gas in contraflow to a bed of the material descending in an independently rotatable annular chamber of annular width a surmounting an annular eccentrically rotating floor, the outer bed wall being in gas-tight sliding relationship to the floor but the inner wall being spaced above the floor by a distance h, not less than, and not more than 10 percent in excess of, the value satisfying the relationship tan .phi. = h/a where .phi. is the operative angle of repose of the charge material at the bottom of the bed.

REFERENCES:
patent: 1429925 (1922-09-01), Candlot
patent: 2945687 (1960-07-01), Davis
patent: 3331595 (1967-07-01), Nelson et al.
patent: 3403895 (1968-10-01), Hatfield et al.

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