Method for burning carbonate-containing material
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United States of America Patent
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-
Oct 8, 2002
Grant Date -
Oct 11, 2001
app pub date -
Apr 6, 2001
filing date -
Apr 11, 2000
priority date (Note) -
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Abstract
In a method for burning carbonate-containing material the latter moves as a result of gravity in counter-current to the cooling and combustion air through a shaft kiln. The fuel supply takes place by means of burning lances introduced into the granular burning material at right angles to the shaft wall. On limiting the grain size and the residence time as a result of this type of fuel supply it is possible to achieve high burning temperatures even suitable for hard burning without there being any sintering together of the granular burning material.
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