Method of mixing high temperature gases in mineral processing kilns
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United States of America Patent
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Jan 6, 2004
Grant Date -
Jul 4, 2002
app pub date -
Sep 11, 2001
filing date -
Sep 11, 2000
priority date (Note) -
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Abstract
A method is described for reducing NO.sub.x emissions 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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