Crusher Pump Volute Abrasion Lining
Worn slurry pump volute rebuilt and lined along the wear path with an abrasion-resistant composite matched to the feed, no new casting required.
A job completed with Belzona. This describes what the Belzona system does and how it goes on, not a record of a specific project by this distributor.
The challenge
A slurry pump on a crusher circuit handles a hard, abrasive feed that wears the volute fast. The slurry scours the wear path, thinning the casting wall and grooving the metal where the flow turns hardest. As that metal is lost the pump moves less and the wear accelerates, until the casting is too thin to hold and the unit comes off the circuit. A new casting is costly and carries a long lead time, and the plant cannot leave the duty pump down while it waits.
The Belzona approach
The volute comes into the shop for a look at where the slurry has cut the metal. Grit-blasting takes the wear path and the surrounding casting back to clean, profiled substrate so the repair holds. A Belzona 1000 Series composite rebuilds the lost metal and the grooves, bringing the wall back to profile. Over that, an abrasion-resistant composite is troweled along the wear path, matched to the hardness of the feed, so the slurry runs against the lining instead of the bare casting. The surface is finished to follow the original flow and the pump goes back ready for the circuit.
- Assess and map the wearThe volute is inspected to map where the slurry has thinned the wall and grooved the wear path, and the feed is confirmed so the lining is matched to it.
- Grit-blast prepGrit-blasting takes the wear path and surrounding casting back to a clean, profiled substrate so both the rebuild and the lining bond to bare metal.
- Rebuild lost metalA Belzona 1000 Series composite rebuilds the thinned wall and the grooves, working cold so the casting sees no heat distortion.
- Line the wear pathAn abrasion-resistant composite is applied along the wear path, matched to the hardness of the slurry, and finished to follow the original flow.
- Return to the circuitThe lining is checked and the rebuilt volute goes back to the plant ready to return to the crusher circuit.
The result
- Worn volute rebuilt and lined rather than replaced with a new casting, avoiding the casting lead time
- Wear path carried by an abrasion-resistant composite matched to the slurry instead of bare metal
- Lost wall and grooving rebuilt cold, with no hot work on the casting
- Pump returned to the crusher circuit by factory-trained and factory-certified Belzona applicators
In the field
More Mining, Quarrying & Bulk projects
Chute & Hopper Erosion Lining
Worn chutes, hoppers, and slurry pumps rebuilt and lined with impact- or abrasion-resistant systems matched to the wear.
Apron Feeder Wear Plate Shimming
Uneven wear plates shimmed with cast conforming backing to stop the pounding, then lined for abrasion where the material rides.
Conveyor Pulley and Idler Lagging
Worn pulley lagging and grooved idlers rebuilt and relagged so the belt drives without slip, no replacement pulleys.
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Belzona Houston is the authorized Belzona distributor for South Texas and the Gulf, based in Alvin, Texas, we’ll survey your equipment and recommend the right cold-applied Belzona system, with 24-hour support.