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A Beginner's Guide To Slurry Pumps

The slurry is a dense, viscous, semi-liquid mixture of several minerals. It is the most difficult fluid to move because it contains a high concentration of particulates, and is exceedingly abrasive, viscous, and occasionally corrosive. There is no doubt that the slurry is exceedingly tough to pump, so selecting the correct pump for these abrasive applications can make a big difference in the application's long-term performance.


What Exactly Is Slurry?

A slurry is a fluid mixture of a water-like liquid with suspended particles. It moves with gravity but, in most situations, requires pumping. Slurries are made up of suspended materials such as cement, manure, flour, and cola. Slurries are used in mining, steel, processing, and power production as a practical way to manage solids.

Pumps Used in the Slurry Process Slurries are pumped using a variety of different types of pumps, although the centrifugal pump is the most prevalent. Centrifugal slurry pumps work by imparting kinetic energy to the slurry via centrifugal force generated by a spinning impeller, in the same way, that a water-like liquid would flow through a normal centrifugal pump.

The use of slurry reduces the projected life of pumping components dramatically. It is critical to select pumps that are appropriate for these heavy-duty applications from the start. 

Considerations Before Purchasing a Slurry Pump 

Component

To avoid abrasive wear, impeller size/design, construction material, and discharge configurations must all be carefully specified. Slurry pumps frequently use open impellers, which are less likely to clog. Closed impellers clog the most easily and are the most difficult to clean. Slurry impellers are massive. This increases their slurry service life.

Construction

Due to their inefficiency, slurry pumps are larger than low-viscosity liquid pumps and require more horsepower to operate. Bearings and shafts must also be more durable. To protect the pump casing from wear, slurry pumps are usually covered with metal or rubber. Metal casings are made of strong alloys. These casings have been designed to withstand increasing pressure and circulation. The casings are selected based on the application. Pumps used in the cement industry, for example, handle microscopic particles under low pressure. As a result, a lightweight enclosure is acceptable. To handle rocks, the pump casing and impeller must be thicker and stronger.

Consideration

It's difficult to keep the slurry pumps running for an extended period. However, there are a few things you can do to help slurry pumps last longer. 

Here are a few things to think about before purchasing extended slurry pumps:

  • Determine the sweet spot, which allows the pump to run at its slowest possible speed (to reduce wear) while yet moving swiftly enough to prevent particles from accumulating and clogging the lines.
  • Reduce the discharge pressure of the pump to a bare minimum.
  • Use appropriate plumbing techniques to ensure a continuous slurry feed to the pump.

Conclusion

Pumping slurries involves a variety of challenges, but with proper preparation and the right equipment, you should be able to work for many years without incident. As a result, it is vital to work with a top-tier slurry pump engineer.

Risansi has extensive experience in the manufacture of industrial pumps and designs a variety of pumps that are ideal for a variety of pumping applications. If you require a slurry pump or any other type of pump, our pumps are the ideal industrial pump solutions for your pumping needs.

Please contact us by clicking here, and we will get back to you with further information.

 

 

 

 

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Location: Peenya, Bengaluru, Karnataka, India

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