The process
Granulators, dryers and coolers in NPK, DAP and SSP plants release hygroscopic dust and ammonia or fluoride fume. Cyclones take the coarse dust, scrubbers take the gas, and the fans behind them are in stainless steel or lined construction.
The gas
Granulator and dryer exhaust carrying hygroscopic fertilizer dust and ammonia or fluoride fume. Corrosive and sticky; lined or stainless construction after a scrubber or bag filter.
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 fertilizer granulation plants
Wet Scrubber in other processes
Copper and Zinc SmeltingHot Dip Galvanising LinesWaste IncineratorsBiomedical Waste IncineratorsCrematoriaChemical Reactor and Tank VentsEffluent Treatment and Zero Liquid Discharge 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.