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Fly Ash Pumping

Apr 27,2025

Fly Ash Pumping

Fly Ash Pump Applications

Fly Ash or Coal Ash is a difficult material to pump due to its abrasive nature.

Fly Ash and Coal Ash Pumping Applications

• Tailing Ponds

• Poly-Lined Tailings Ponds

• River Cleanups

• Sumps

• Concrete Basins

• Process Pumps

• Fly Ash Transport, Mixing, and Remediation

Fly Ash Pumping Problems

Fly Ash or Coal Ash is a difficult material to pump due to its abrasive nature.   Centrifugal pumps quickly get worn down and lose their tolerances and suction capabilities.  This results in significant downtime and costly spare parts.

The fly ash accumulates in many stages of the power generation process and proves to be very costly and time-consuming to remove.  The most troublesome stages are dealing with the lined and unlined tailings ponds, rivers, sumps, and concrete basins.

Tailings ponds and rivers continuously need to be cleaned out to increase capacity.  Finding the right pump and dredging equipment can often be a complicated process.  Centrifugal pumps will only pump 10-20% solids by volume.  This means that most of the discharge is water and very little fly ash is coming out of the pipeline.

Furthermore, the abrasive nature of the fly ash destroys the impeller of the pump and causes pump failures, costly repairs and spare parts. Our pump has a high tolerance ultra-recessed rotor that withstands the destructive nature of fly ash.

Tailings ponds are often lined with plastic to minimizes the seepage of contaminants.  This makes it more difficult for conventional equipment to dredge or mechanically remove the fly ash sediment without damaging the liner. We have a liner-safe wheel option for the excavator attachment.

Sumps are often the most difficult areas in a power generation plant to handle.  Fly ash, coal chunks, rocks and other debris are washed into sumps and continuously need to be pumped out.  Centrifugal pumps get clogged and constantly wear out because of the tolerances between the impeller and the volute.

 

 

 

 

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