Fans and Air Pollution Control for Vertical Shaft Lime Kilns

The process

Shaft kilns burn lime in a packed bed with combustion air forced up through the charge by a high pressure blower and exhaust drawn off the top by the kiln fan. Pressure is the issue on the air side, dust and temperature on the exhaust side.

The gas

Kiln gas with lime dust, hot and abrasive, and hygroscopic where moisture is present. Wear protection and a design that resists caking on the blades.

Fans in this process

Duty	What it does here	Type usually selected
ID Fan	Sits at the outlet of a boiler, kiln or furnace and draws the flue gas through the plant to the stack.	Backward curved, backward inclined and radial tipped
Combustion Air Blower	Feeds a burner with air at the pressure the burner register needs.	Backward curved and radial tipped
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
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

Industries

Related processes