The process
Rotary and reverberatory furnaces for secondary lead emit fume with lead oxide and sulphur dioxide. The furnace off-gas is cooled, filtered in a bag filter and scrubbed, and the building is held under negative pressure for hygiene.
The gas
Fume from arc, induction or reverberatory furnaces, hot and carrying fine metallic oxide dust. Temperature is handled by dilution air or a cooler ahead of the filter, and the fan sits on the clean side where possible.
Selection for this process
| Type | Venturi for fine dust |
| Material | Stainless steel |
| 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 lead smelting and battery recycling
Wet Scrubber in other processes
Copper and Zinc SmeltingHot Dip Galvanising LinesWaste 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 SulphitationCashew 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.