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.
Selection for this process
| Type | Packed bed for gas absorption |
| Material | PP-FRP or rubber lined |
| Outlet | Mist eliminator ahead of the fan; fan in the same material as the scrubber |
Types, construction and performance of the wet scrubber.
Industries
Fans in hot dip galvanising lines
Wet Scrubber in other processes
Copper and Zinc SmeltingWaste IncineratorsBiomedical Waste IncineratorsCrematoriaChemical Reactor and Tank VentsEffluent Treatment and Zero Liquid Discharge PlantsFertilizer Granulation PlantsSulphuric Acid PlantsPulp Mills and Recovery BoilersAutomotive Paint ShopsPickling and Acid Treatment LinesTyre Curing PressesBlasting and Painting HallsWater and Wastewater Treatment PlantsBOF Steel ConvertersSugar Dryers and SulphitationLead Smelting and Battery RecyclingCashew and Nut Processing
Information needed to select or quote
- Gas volume and temperature. Actual flow at the inlet, normal and upset temperature, moisture.
- Dust or pollutant. Inlet loading, particle size distribution, whether it is abrasive, sticky, hygroscopic or combustible; for gases, the species and concentration.
- Required outlet. The emission limit or clean gas concentration the unit must meet.
- Site. Available space and height, material of construction preferences, and how the collected material is to be discharged.