Fans and Air Pollution Control for Alternative Fuel Handling in Cement Plants

The process

Shredded tyres, refuse derived fuel and biomass fed to the kiln or calciner are received, shredded, dried and conveyed with dust extraction and fume control at each stage, and blown into the burner by high pressure blowers.

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.

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
High Pressure Blower	Delivers combustion, aeration and conveying air where the system resistance runs to several thousand millimetres of water column in a single stage..	Backward curved and radial tipped
Fume Exhaust System	Hoods, ducting and an exhaust fan that capture fume at source and deliver it to a scrubber, bag filter or stack.	Backward inclined and radial tipped

Industries

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