In-Line Calciner Preheater System

Key Benefits

• Effective emission control
• Easy operation
• Highly reliable
• Optimised fuel and power consumption
• Long refractory life
• Excellent suitability to low-grade fuels

Operating Characteristics

• Lowest NOx emission from unique high-temperature reduction zone
• Simultaneous low CO emission due to mid-calciner notch and specially designed exit duct
• Inherently simple operation with single points of entry of calciner fuel and tertiary air. Suitable for firing both traditional and alternative fuels
• Special option with a high-temperature oxidation zone makes the low-NOx ILC even better for burning petcoke and other alternative fuels by simultaneously ensuring more rapid burnout and further improved NOx control
  

How it works

In-line calciners generally have lower NOx emissions than separate-line calciners, since all of the kiln exhaust gases must pass through the calciner.

Our low NOx ILC design is based on dividing the meal from the second lowest preheater cyclone to 1) the kiln riser and 2) the calciner, which are separated by an expanded riser duct that forms a NOx reducing zone. That is, the calcining chamber is built (at least partially) into the kiln riser.

This gives a very simple way to create low NOx emissions without the splitting of tertiary air. 100% of the fuel is fired to the kiln riser duct.

Learn more!

	Read more about FLSmidth's preheater systems.
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ILC Preheater System