B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
196/67
B08B 9/08 (2006.01) B01F 5/02 (2006.01) B08B 3/02 (2006.01) B08B 9/093 (2006.01) B67C 9/00 (2006.01)
Patent
CA 1290714
ABSTRACT OF THE DISCLOSURE To render residues such as thickened sludge and sedimented crude oil or refinery products which collect at the bottom of a tank into pumpable flowable condition, crude oil is taken from an upward region of the tank, pumped upwardly to a suction pump - pressure pump unit located, for example, on top of a floating roof of the tank, the pressurized crude oil taken from the top portion of the tank being reintroduced through a preferably rotating liquefaction lance to a region in the vicinity of the sedimented sludge. The pressure is convered into hydrodynamic energy. Preferably, a plurality of such lances are used, arranged with respect to each other to form eddied or vorteces, to establish flow patterns within the tank, thereby liquefying the sludge of residues and rendering them into pumpable flowable condition for removal from the tank. Preferably, the suction and pressure pump together with the motor include a portable unit which can be placed on a floating roof, the respective inlet and lance portions being introduces through opening in the roof, for example coaxial with leg sleeves customarily attached to such roofs and already present therein.
476308
Matter Rolf
Paringaux Bernard
Marks & Clerk
Quasar Investments Ltd
LandOfFree
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