F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/116
F04D 1/06 (2006.01) F04D 7/04 (2006.01)
Patent
CA 1172906
Applicant: Vaughan Co., Inc. Title: High Head Centrifugal Slicing Slurry Pump ABSTRACT A booster propeller is located at the inlet of a flared funnel leading toward arcuate inlet apertures in an end plate of a centrifugal pump casing. Such propeller has radially projecting blades of generally right triangular cross section with bases formed of the broad trailing sides and broad bottom sides remote from the impeller; the hypotenuse side of each blade being a broad upper surface inclined relative to a plane perpendicular to the axis for propelling slurry toward the inlet apertures. The pump impeller is received in a bowl capped by the end plate and has a circular shroud plate perpendicular to the axis with vanes or blades projecting toward the end plate and having cupped leading surfaces forming a sharpened edge. Such blades are swept back in the area of the end plate inlet apertures for effective slicing of chunks or lumps of solid material in the slurry in combination with sharpened leading edges of the inlet apertures. The pump casing bowl has a semicylindrical wall portion closely encircling the impeller and providing a pressure- increasing zone for slurry accelerated outward before the bowl wall spirals volutely outward to the outlet conduit.
391172
Smart & Biggar
Vaughan Co. Inc.
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