High head centrifugal slicing slurry pump

F - Mech Eng,Light,Heat,Weapons – 04 – D

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103/153

F04D 29/22 (2006.01) F04B 39/12 (2006.01)

Patent

CA 1193486

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. 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.

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