Lime sludge treatment process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5413635
SERIAL NO

08175856

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a method and an apparatus for the heat treatment of lime sludge (CaCO.sub.3) to form burnt lime (CaO). In the method of the present invention a lime sludge feed is entrained in and thereafter dried in a gas flash dryer means to produce a dried lime sludge. The dried lime sludge is separated from the gases and thereafter is fed to a rotary kiln in which the dried lime sludge is converted to active burnt lime. In order to maintain the flow of gas in the flash dryer means at a predetermined velocity in order to entrain all the lime sludge feed in the gas flow, an adjustable portion of the separated gases are recycled through the flash dryer means.

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Patent Owner(s)

Patent OwnerAddress
FLSMIDTH A/SVIGERSLEV ALLE 77 VALBY 2500

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Euston, Charles R Kutztown, PA 8 31
Matweecha, David M Bethlehem, PA 1 9

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