Stratified staging in kilns

Details Stratified staging in kilns Stratified staging in kilns

2006-10-16

2008-11-18

Wilson, Gregory A (Department: 3749)

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

C432S013000, C432S103000

Reexamination Certificate

active

07452203

ABSTRACT:
In a kiln whose interior is heated by combustion with oxidant having a higher oxygen content than air, streams of staging oxidant are fed into the space between the combustion zone and the inner surface of the kiln, and the stoichiometric ratios and amounts of oxygen in the combustion zone and in the overall operation of the kiln are adjusted to provide control or reduction of NOx formation while maintaining or increasing productivity of the kiln.

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