The process
Limestone, ore and aggregate crushing plants extract dust at the crusher and screens into bag filters. The dust is abrasive, so the fan is placed after the filter and the ducting is designed for wear.
The gas
Extraction air from crushers, screens and transfer points, carrying abrasive mineral dust. Radial wheels with wear protection ahead of the collector, or efficient wheels behind it.
Selection for this process
| Role | Pre-collector for the coarse fraction ahead of a bag filter or scrubber |
| Construction | Mild steel with wear plates at the inlet |
| Discharge | Hopper with rotary air lock valve |
Types, construction and performance of the cyclonic separator.
Industries
Fans in mineral crushing and screening
Cyclonic Separator in other processes
Ceramic Body Spray DryersFertilizer Rotary Dryers and CoolersFood and Dairy Spray DryersRotary DryersTobacco Primary ProcessingFlour and Grain MillsCoal Handling PlantsPlywood 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.