Method and apparatus for treating lime mud

Details Method and apparatus for treating lime mud Method and apparatus for treating lime mud

C - Chemistry, Metallurgy

04

B

C04B 2/00 (2006.01) C04B 2/10 (2006.01)

Patent

CA 2628753

A method for feeding lime mud into a lime kiln including a rotary kiln shell having an interior between a first end wall and a second end wall, the method including: feeding the lime mud into a flue gas flow in the interior of the rotary kiln shell or in close proximity to the shell to pretreat the lime mud; separating the pretreated lime mud from the flue gas flow; conveying the separated lime mud into the lime kiln, and calcining the separated lime mud in the lime kiln.

La présente invention concerne un procédé de distribution de boue de chaux dans un four à chaux qui comprend une enveloppe de four rotative qui possède un intérieur entre une première paroi d~extrémité et une seconde paroi d~extrémité, le procédé comprenant les étapes consistant à : distribuer la boue de chaux dans un écoulement de gaz de combustion à l~intérieur de l~enveloppe de four rotative ou à proximité de l~enveloppe pour traiter préalablement la boue de chaux ; séparer la boue de chaux préalablement traitée de l~écoulement de gaz de combustion ; transporter la boue de chaux séparée dans le four à chaux, et calciner la boue de chaux préalablement traitée dans le four à chaux.

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