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What is a Slurry Pump?

Oct. 24, 2022

Slurry Pumps are used in applications where solids are present in the fluid flow. When handling highly abrasive or corrosive fluids, the pump and materials should be selected based on the application to ensure trouble-free performance. We offer a full line of Slurry Pumps designed to handle light to heavy mud loads.

D Series Horizontal Single-Case Pump

 

Components

Motor: It can be electric or hydraulic. Electric submersible slurry pumps must be kept cool. If the slurry pump will be used for an extended period of time in a semi-submersible or dry condition, a cooling jacket should be included. Heavy-duty electric slurry submersible pumps are recommended to use Class H insulated motors. They may also contain sensors to detect excessive temperature and/or humidity.

Impeller: The impeller is the rotating part of the slurry pump. Centrifugal force is transferred to the slurry. It is usually composed of wear-resistant, high-chrome ductile iron. Enclosed, open, semi-open or recessed impellers are all optional.

Housing: The housing is usually semi-volute or concentric. It usually consists of cast iron, but depending on the application, it may be coated to prevent corrosion or manufactured from a specific alloy for grinding applications.

Shaft and Bearing Assembly: The shaft is responsible for transferring rotational motion from the motor to the impeller. Heavy-duty roller bearings on the shaft prevent it from moving in other directions and reduce vibration.

Shaft bushing: Its job is to keep the shaft safe. The shaft sleeve consists of a corrosion and wear resistant substance.

Seal Pack: The seal pack prevents slurry from leaking into the motor and bearings. Lip seals, mechanical seals and hybrid seals may all be included in the seal package.

Upper and lower wear plates: These plates are located on both sides of the impeller. They are susceptible to deterioration. Pump efficiency can be maximized by calibrating their clearances.

Filter: The filter prevents large particles from being trapped within the impeller area, which could damage the pump.

Agitator: This allows the pump to absorb sediment while suspending solids. It works by the vanes driving a continuous flow of high-pressure liquid into the conical sediment, transporting the solids to the eye of the impeller and producing a high solids concentration. The agitator also prevents particles from clogging the holes of the filter.

 

Types

Slurry Pumps are available in a variety of styles, the most popular of which are centrifugal pumps and volumetric pumps.

Centrifugal Slurry Pumps

Centrifugal slurry pumps are typically used for pumping slurries with a concentration of less than 70% by weight solids through pipes, which have a large capacity but a short head. Vertical or horizontal  slurry pumps are available.

Volumetric Slurry Pumps

Pumping slurry through pipes with high solids concentrations requires a slurry pump capable of producing a high head but with a limited capacity.

 

Advantages

Compared to conventional pumps, slurry pumps are typically larger, have more horsepower, and have more durable bearings and shafts. Centrifugal pumps are the most popular form of slurry pump. To move slurry, these pumps use a rotating impeller, similar to the way water-like liquids flow using centrifugal pumps.

Compared to standard centrifugal pumps, centrifugal pumps optimized for slurry pumping typically have the following features.

Larger impellers made of more material. This is to compensate for the wear caused by abrasive slurry.

Fewer and thicker vanes on the impeller. This makes it easier for solids to pass through than the 5-9 vanes on a standard centrifugal pump - typically 2-5 vanes.

Are you interested in learning more about slurry pump for sale and how they can benefit you? Contact us today to secure an expert consultation!

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