The process
Milk powder, coffee and flavour spray dryers use filtered, heated supply air and an exhaust fan after cyclones and a bag filter. Hygienic construction, stainless steel, and a wheel that can be washed down.
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 food and dairy spray dryers
Cyclonic Separator in other processes
Ceramic Body Spray DryersFertilizer Rotary Dryers and CoolersRotary 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.