The process
Milling and pneumatic conveying of grain and flour raise combustible dust. Dust extraction to bag filters with spark resistant fans, and high pressure blowers for conveying lines.
The gas
Fibrous or stringy material that wraps a shrouded wheel. An open or straight radial impeller, spark resistant where the fibre is combustible, placed before or after the collector as the material allows.
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 flour and grain mills
Cyclonic Separator in other processes
Ceramic Body Spray DryersFertilizer Rotary Dryers and CoolersFood and Dairy Spray DryersRotary DryersTobacco Primary ProcessingCoal 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.