High capacity, large sphere passing, slurry pump

Details High capacity, large sphere passing, slurry pump High capacity, large sphere passing, slurry pump

1996-08-29

1998-09-29

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

4151211, 416223B, F04D 2944

Patent

active

058138331

ABSTRACT:
A centrifugal slurry pump is disclosed which includes a specifically designed impeller having three circumferentially spaced vanes mounted between a back disc shaped shroud and a front open annular shroud. The vanes are thick in cross-section for wear-resistance and channels formed between adjacent ones of the vanes permit a relatively large sphere, or sphere-like objects, to pass therethrough, the sphere having a diameter of in excess of 14 inches, while maintaining an efficiency in excess of 80% and a head in excess of 30 feet. The vanes have a mixed pitch and a negative overlap, with quite large channels formed between adjacent vanes so as to pass the large spheres which are encountered during dredging operations.

REFERENCES:
patent: 398301 (1889-02-01), Willson
patent: 1633609 (1927-06-01), Schmidt
patent: 3130678 (1964-04-01), Chenault
patent: 3130679 (1964-04-01), Sence
patent: 3148464 (1964-09-01), Jones
patent: 3295455 (1967-01-01), Patay et al.
patent: 3447475 (1969-06-01), Blum
patent: 3734640 (1973-05-01), Daniel

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