Low-wear slurry pump
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United States of America Patent
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May 23, 2017
Grant Date -
Feb 6, 2014
app pub date -
Apr 13, 2012
filing date -
Apr 14, 2011
priority date (Note) -
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Abstract
A centrifugal pump for a slurry combines design changes with respect to conventional configurations that produce quasi-laminar flow and materially extend the life of the casing. The cutwater clearance of the casing is increased to a range of 0.20 to 0.25 times the diameter of the impeller. The casing includes a redesigned removable annular liner with a diameter increased to at least 1.15 times the diameter of the impeller. The pump preferably also has an axially adjustable wear ring with a diameter increased such that it extends by at least 10% over the diameter of the area of interface between the wear ring and the impeller.
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