Conditioning drum for use in hot water separation of bitumen fro

Details Conditioning drum for use in hot water separation of bitumen fro Conditioning drum for use in hot water separation of bitumen fro

1975-04-03

1976-07-13

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34135, 34138, 209 11, 214 18K, F26B 1102

Patent

active

039685721

ABSTRACT:
A rotating drum type muller is described for initial conditioning of mined tar sands by the hot water method for separation of bitumen from the sands wherein ablation of mined tar sand lumps into pulp is effected through the addition of hot water, steam and caustic. This conditioning drum comprises a horizontally disposed cylindrical drum of a length to diameter ratio of about 1:1 or less, rotatable around its longitudinal axis and having axial openings at its inlet end for introduction of mined tar sand lumps, water and caustic and at its outlet end for rejection of oversize and discharge of mulled tar sands pulp, said axial opening at its outlet end being divided by a coaxial grate member, extending along the longitudinal axis of the drum, into an outer annular opening for discharge of tar sands pulp and an inner axial opening for rejection of oversize, said grate size being sufficient to allow ready passage of tar sands pulp into a discharge passageway defined by the outer annular opening while retaining the oversize; and a plurality of downwardly projecting steam conduits affixed to a stationary steam header extending substantially over the length of the drum interior along the longitudinal axis of the drum, said conduits being perforated for injecting steam into said cylindrical drum.

REFERENCES:
patent: 506916 (1893-10-01), DeKinder et al.
patent: 3073449 (1963-01-01), Johanningmeier
patent: 3245154 (1966-04-01), Bojner et al.
patent: 3509641 (1970-05-01), Smith et al.
patent: 3742613 (1973-07-01), Gimborn

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