C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 2/10 (2006.01) F27B 7/32 (2006.01) F27B 7/16 (2006.01) F27B 7/20 (2006.01)
Patent
CA 2063390
A method and apparatus for heat treatment of lime mud com- prises drying of the lime mud to be introduced into the lime reburn- ing kiln (5) in a pneumatic dryer (3) by means of flue gases dis- charged from the lime reburning kiln in order to regenerate the lime content of the lime mud. From a drying filter (6), the lime mud thickened to a dry solids content of over 75 %, preferably to 80 %, is introduced into a feed chamber (2) through which an adjustable por- tion of the flue gas is conducted. Depending on the gas amount, 100 % or less of the lime mud is entrained with the gas into the dryer (3), the remaining portion falling into the lower section (14) of the feed chamber, wherefrom it is further transferred into the lime reburning kiln (5).
Ahlstrom Machinery Oy
Gowling Lafleur Henderson Llp
LandOfFree
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