The process
Threshing, conditioning, cutting and drying of tobacco generate fine dust at every transfer. Dust extraction fans with bag filters on the primary line, hot air fans on the dryers, and conditioning for the processing floor.
The gas
Fine, slightly sticky dust from cutting and blending, with moisture from conditioning. Bag filter on the system, fan on the clean side, wheel easy to clean.
Fans in this process
| Duty | What it does here | Type usually selected |
|---|---|---|
| Dust Collector Fan | The fan behind a bag filter, cyclone or multiclone on a dust extraction system. | Backward inclined and radial tipped |
| Bag Filter Fan | Pulls the process gas through the filter bags and discharges the cleaned gas to the stack. | Backward curved and radial tipped |
| Hot Air Fan | Circulates or supplies air at elevated temperature to a dryer, oven or kiln. | Backward curved and backward inclined |
| Ventilation Fan | Moves air through a plant or building for fresh air supply, heat removal and fume dilution where the system is ducted. | Backward inclined and forward curved |
| HVAC | Supply, return and exhaust fans for heating, ventilation and air conditioning of plant and office space. | Axial, backward inclined and forward curved |