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Weir Warman Slurry Pump Maintenance Manual, Slurry Pump Manual, Warman Pump Manual

Centrifugal Slurry Pump Maintenance Manual

There are a large number of differing pump types used in the pumping of slurries. Positive displacement and special effect types such as Venturi eductors are used but by far the most common type of slurry pump is the centrifugal pump. The centrifugal slurry pump utilises the centrifugal force generated by a rotating impeller to impart energy to the slurry in the same manner as clear liquid type centrifugal pumps.

However, this is where the similarities end.

Centrifugal slurry pumps need to consider impeller size and design, its ease of maintenance, the type of shaft seal to be used and the choice of the optimum materials. This is needed to withstand wear caused by the abrasive, erosive and often corrosive attack on the materials. Many other important considerations are also required.

The centrifugal slurry pump must be designed to allow the passage of abrasive particles which can at time be extremely large. The largest Warman slurry pump, for example, can pump particles up to 530mm in spherical size.

Slurry pumps therefore need much wider and heavier impellers to accommodate the passage of large particles. They must also be constructed in special materials to withstand the internal wear caused by the solids.