The process
Thermal and mechanical sand reclamation plants calcine or attrition the used sand and classify it with air. Hot air fans on the calciner, dust extraction through cyclones and bag filters on the attrition and classification.
The gas
Extraction air from crushers, screens and transfer points, carrying abrasive mineral dust. Radial wheels with wear protection ahead of the collector, or efficient wheels behind it.
Fans in this process
| Duty | What it does here | Type usually selected |
|---|---|---|
| Dust Collector Fan | The fan behind a bag filter, cyclone or multiclone on a dust extraction system. | Backward inclined and radial tipped |
| Bag Filter Fan | Pulls the process gas through the filter bags and discharges the cleaned gas to the stack. | Backward curved and radial tipped |
| Hot Air Fan | Circulates or supplies air at elevated temperature to a dryer, oven or kiln. | Backward curved and backward inclined |
| Combustion Air Blower | Feeds a burner with air at the pressure the burner register needs. | Backward curved and radial tipped |
Air pollution control
Industries
Related processes
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