The process
Galvanising lines have acid pickling tanks that fume, a flux dryer, and a zinc kettle that emits fume at dipping. The pickling fume goes through a scrubber in PP-FRP, the kettle fume to a bag filter, and the dryer needs a hot air fan.
The gas
Fume from pickling, acid handling or reactor vents, corrosive and often wet. PP-FRP, FRP or rubber lined construction, with the motor outside the gas path.
Fans in this process
| Duty | What it does here | Type usually selected |
|---|---|---|
| Fume Exhaust System | Hoods, ducting and an exhaust fan that capture fume at source and deliver it to a scrubber, bag filter or stack. | Backward inclined and radial tipped |
| Dust Collector Fan | The fan behind a bag filter, cyclone or multiclone on a dust extraction system. | Backward inclined 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 |
| Mist Eliminator | Separates entrained liquid droplets from a vapour or gas stream, ahead of a compressor, a fan or a stack.. | Demister Knockdown Vessel |
Air pollution control
Industries
Related processes
Waste Heat Recovery BoilersRotary Lime KilnsVertical Shaft Lime KilnsSponge Iron Rotary KilnsBlast Furnace Hot Blast StovesSinter PlantsCoke Oven BatteriesElectric Arc Furnace SteelmakingInduction Furnace Melt ShopsLadle Furnaces and Secondary MetallurgySteel Reheating FurnacesHeat Treatment FurnacesForge ShopsFerro Alloy Submerged Arc FurnacesIron and Non-ferrous FoundriesSolvent Recovery Plants