Dredge Pump Impeller

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Dredge pump impeller

Dredge pump impeller

Dredge pump impeller

What is a dredge pump?

Dredge pumps are a special category of heavy duty slurry pumps that are utilized in the process of dredging. Dredging is referred to as the process of transport of underwater sediments (usually sand, gravel or rocks) from one region to another. Dredging takes place in shallow water areas of lakes, rivers or ocean for the purpose of land reclamation, desilting, flood prevention, creation of new ports or expansion of existing ports. Hence, various industries which utilize dredge pumps are construction industry, mining industry, coal industry and oil & gas industry.

What kind of slurry pumping?

Before moving on to estimating the design parameters of ‘your’ slurry pump, an extremely crucial step is being familiar with the material that needs to be transported. Therefore, estimation of pH and temperature of the slurry, the specific gravity of slurry and concentration of solids in the slurry is the first crucial step towards the direction of ‘your’ ideal pump selection.

Dredge Pump Impeller Material selection:

Typical material used for the construction of slurry pumps are cast iron, stainless steel, and high chrome steel. Some slurry pumps come with a lining to better deal with problems of slurry abrasion. A few elastomers which are used in the lining material are natural rubber, polyurethane or neoprene. The selection of lining material depends on the operating temperature, pH of slurry and the presence of specific abrasive fluids used in the dredging process.