|Vortex type Sludge Pumps||
These are a form of centrifugal pump, of lower mechanical efficiency than other types, but extremely effective in handling entrained solids, such as hide, bone, general abattoir floor sweepings or abrasive solids. They may be driven at 2900rpm for spray irrigating dairy waste.
In operation, a standing vortex is generated in
front of a straight-vaned impeller, as seen in the photo at right.
Inlets are of smaller diameter than outlets, so that solids entering will find adequate passage through the pump.
PHOTO AT RIGHT shows impeller and body of a Batescrew model CS3-4T vortex type sludge pump.