Heating – Tumbler-type rotary - drum furnace – Having structure agitating or controlling the motion of the...
Reexamination Certificate
2007-06-12
2007-06-12
Wilson, Gregory (Department: 3749)
Heating
Tumbler-type rotary - drum furnace
Having structure agitating or controlling the motion of the...
C432S105000, C432S117000, C106S758000
Reexamination Certificate
active
11137288
ABSTRACT:
A method is described for reducing NOxemissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
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International Search Report dated Oct. 2, 2006, 2 pages.
Hansen Eric R.
Supelak Ralph A.
Tutt James R.
Ash Grove Cement Company
Barnes & Thornburg LLP
Cadence Environmental Energy, Inc.
Wilson Gregory
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