Residue recovery process and apparatus

Details Residue recovery process and apparatus Residue recovery process and apparatus

1990-05-21

1992-08-04

Bagnell, David J.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Melted material recovered

166302, 208 39, 208370, 2102423, 299 14, 415 72, C01C 312, F21C 4110, F04B 1502

Patent

active

051352869

ABSTRACT:
The recovery of materials from viscous bodies of petroleum residue and asphalt deposits which contain substantial quantities of the deposits by the use of an induced thermal gradient in a region of such a viscous body in which there is located a screw-like pump.
This is effected by a process and apparatus that utilizes a thermal gradient about a archimedian screw-type pump in the pit or pond where its inlet is proximate of the surface of the pit or pond. The thermal gradient about the pump concentrates less viscous components at the vicinity of the inlet and a positive pressure is applied to assure a flow of residue towards the inlet allowing the lower viscosity materials to be captured and pumped from the pit or pond to a shore facility.

REFERENCES:
patent: 2224403 (1940-12-01), Lines
patent: 3785496 (1974-01-01), Smith, Jr.
patent: 4526514 (1985-07-01), Duverne
patent: 4793767 (1988-12-01), Lundin

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