Agitating – Jet or spray impinging free-falling stream
Patent
1989-11-24
1991-08-13
Simone, Timothy F.
Agitating
Jet or spray impinging free-falling stream
366136, 366165, 366348, B01F 1502
Patent
active
050392271
ABSTRACT:
The mixer circuit comprises a vertically oriented, open-topped mixer vessel having a cylindrical side wall terminating with a shallow conical bottom. The bottom wall forms a central bottom outlet. Recycled slurry and fresh water streams are fed tangentially to the inner surface of the vessel, thereby forming a vortex. The oil sand enters as a continuous, free-flowing stream moving along a downward trajectory; the stream impinges the vortex, wherein it is dispersed and mixed to create slurry. The slurry exits through the bottom outlet, is screened to remove oversize material, and enters a holding vessel. Part of the slurry in the holding vessel is recycled to the mixer vessel through a pipe loop incorporating a pump. The slurry is energized by the pump and functions to maintain and partly create the rapidly moving vortex that carries out the mixing and lump-disintegration actions. The balance of the slurry in the holding vessel is pumped out as product. The circuit is adapted to consistently produce a dense slurry.
REFERENCES:
patent: 1062307 (1913-05-01), Stobie
patent: 3661364 (1972-05-01), Lage
patent: 4007921 (1977-02-01), Zingg
patent: 4130365 (1978-12-01), Sittig
patent: 4498819 (1985-02-01), El-Saie
patent: 4534655 (1985-08-01), King et al.
patent: 4818499 (1989-04-01), Chantriaux et al.
patent: 4857355 (1989-08-01), Gregg
patent: 4863277 (1989-09-01), Neal et al.
Cymerman George J.
Leung Anthony H. S.
Maciejewski Waldemar B.
Alberta Energy Company Ltd.
Canadian Occidental Petroleum Ltd.
Esso Resources Canada Limited
Gulf Canada Resources Limited
HBOG-Oil Sands Limited Partnership
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