Method and apparatus for removing dust particulates from preheated particulate material
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United States of America Patent
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Nov 4, 2014
Issued Date -
N/A
app pub date -
Jul 8, 2009
filing date -
Jul 9, 2008
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Abstract
A method for removing sulfur containing dust particles from particulate material exiting a material preheater in which the particulate material is heated by kiln off gases may include a number of steps. Off gases from the kiln are directed through a gas conduit to the preheater to preheat particulate material traveling through the preheater in a direction countercurrent to the direction of off gas flow through the preheater. Material exiting the preheater is directed to a material bypass conduit that is separated from the gas conduit and is flow connected to a material inlet to the kiln. A stripping gas is directed through the conduit to entrain dust particles in the preheated material and to carry said dust particles away from the preheated material.
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