The slurry is one of the challenging fluids to pump. Learn how & why slurry pump selection can improve the long-term performance of these centrifugal pumps

1. PUMPING
SLURRY
A BEGINNER’S GUIDE TO

2. The slurry is a thick, viscous, and semi-liquid mixture of a number of minerals.
It is the most challenging fluid to move, made up of a high concentration of
solids, very abrasive, thick, occasionally corrosive.
The slurry is extremely difficult to pump, there is no doubt about that, and thus,
selecting the proper pump for these abrasive applications can make a
significant difference
in the long-term performance of the application.
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3. What Is Slurry?
The slurry is a fluid combination made up of a water-like liquid and suspended particles.
it moves with gravity but requires pumping in most cases. Examples of slurries
include cement, manure, starch, and cola suspended in water. Slurries are
used as a convenient way to handle solid in mining, steel, processing, and power
generation.
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4. Types of slurries:
Non-settling Slurries
Slurries that do not settle to the bottom of the pipe include extremely small particles
and may settle over an extended period of time (i.e. weeks).
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5. Below Are Some Common
Characteristic Of Slurries
Abrasive in nature compared to pure liquids.More viscous than pure liquids.
Possibility of a high solid content (measured as a percentage of the total volume).
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When the slurry is not in motion, the solid particles often precipitate out
quite fast (depending on the particle size).
The movement of slurries requires more energy
than pure liquids..
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6. Pumps Used In The Process
Of Slurry
Slurries are pumped using a variety of different types of pumps, but the most
common form of pump is the centrifugal pump. Centrifugal slurry pumps work
by imparting kinetic energy to the slurry via centrifugal force created by a revolving
impeller, similar to how a water-like liquid would flow via a typical centrifugal pump.
The use of slurry significantly reduces the estimated life of pumping components.
It is vital to pick pumps that are suited for these heavy-duty applications from the outset.
More viscous than pure liquids.
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7. Technical Specification Of Centrifugal
Slurry Pump
Salient Features
Range: 3” to 12” (75mm to 300 mm)
Capacity: 10,000 GPM (2257 m³/hr)
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Heads to 240 ft (73 m)
Pressure to: 150 psi (1,035 kPa)
Made maintenance quick and easy
Replacement of wearing parts can be done in the field
With the two parts casing, it is possible to replace
the worn front cover without changing the complete casing.
Robust construction
Maintenance-free
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8. Things To Consider Before
Buying A Slurry Pumps
The impeller size/design, construction material, and discharge configurations must
all be chosen carefully to avoid abrasive wear.
Slurry pumps often have open impellers, which are less prone to clogging. Closed impellers are the
most prone to clogging and are the most difficult to clean.
Slurry impellers are huge. This prolongs their service
Slurry pumps often have open impellers, which are less prone to clogging. Closed impellers are the
most prone to clogging and are the most difficult to clean.
Slurry impellers are huge. This prolongs their service life in slurry.
Component
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9. Slurry pumps are bigger than low-viscosity liquid pumps and require more horsepower to run
due to their inefficiency. Bearings and shafts must also be tougher.
Slurry pumps are commonly coated with metal or rubber to protect the pump casing from wear.
For example, Goulds Pumps’XHD (Extra Heavy Duty) slurry pump is lined with rubber..
Metal casings are hard alloys. These casings are made to tolerate increased pressure and circulation..
The casings are chosen to suit the application. Pumps used in cement manufacturing, for example,
handle small particles at low pressure. So a lightweight enclosure is appropriate. The pump
casing and impeller need to be thicker and stronger to handle rocks.
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Construction
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10. It’s challenging to make the slurry pumps last for a reasonable amount of time. However,
there are a few things you can do to extend the life of slurry pumps.
Here are a few things to consider before buying prolonged slurry pumps:-
Figure out where the sweet spot is that permits the pump to run at its slowest
potential speed (to decrease wear) while yet moving quickly enough to prevent
particles from accumulating and clogging the lines.
Reduce the pump’s discharge pressure to the minimum.
Apply suitable plumbing techniques to provide a consistent slurry supply to the pump.
Consideration
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11. Pumping slurries presents a number of difficulties, but with careful planning and
the right equipment, you should be able to work worry-free for many years. Thus,
it is critical to deal with a slurry pump engineer of the highest caliber.
Contact us by clicking here and our team with getting back to you with more information.
Conclusion
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Sujal Engineering has vast experience in industrial pumps manufacturing and develops
various kinds of pumps that are best for different pumping applications. If you are looking
for the best slurry pump other than any kind of pump, our pumps are the best choice
for your industrial pumping needs.