The process
Spray dryers turn body slip into pressing powder with hot gas from a burner. The exhaust fan handles warm, humid gas with fine powder that sticks below dew point, after cyclones and a bag filter or wet scrubber.
The gas
Exhaust from a spray dryer carries fine product that is hygroscopic and sticks to any surface below dew point. A blade form that sheds deposit, insulation on the casing and easy access for cleaning.
Selection for this process
| Role | Primary collector where the particle size is coarse enough |
| Construction | Mild steel or stainless steel |
| Discharge | Hopper with rotary air lock valve |
Types, construction and performance of the cyclonic separator.
Industries
Fans in ceramic body spray dryers
Cyclonic Separator in other processes
Fertilizer Rotary Dryers and CoolersFood and Dairy Spray DryersRotary DryersTobacco Primary ProcessingFlour and Grain MillsCoal Handling PlantsMineral Crushing and ScreeningPlywood and Wood ProcessingRice Mills and Paddy DryersAnimal Feed MillsFoundry Sand Reclamation
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.