Direct-fired inclined counterflow rotary kilns and use thereof

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United States of America Patent

PATENT NO 10280114
APP PUB NO 20170362122A1
SERIAL NO

15539910

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Abstract

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Method of operating a long direct-fired inclined counterflow rotary kiln for the thermal treatment of material and counterflow rotary kiln adapted for same, whereby material to be treated is introduced into the kiln at the inlet end and treated material is evacuated from the kiln at the outlet end, whereby a main combustion zone extends inside the kiln over a distance of ¼ to ⅓ of the internal length Lint of the kiln, whereby a supplementary combustion zone in which supplementary combustion takes place with an oxygen-rich oxidant extends inside the kiln over a distance from the inlet end of at most ¼ of the internal length Lint, and whereby no combustion takes place in a heat exchange zone located between the main combustion zone and the supplementary combustion zone.

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Patent Owner(s)

Patent OwnerAddress
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE75007 PARIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fernandes, Sergio Alges, PT 1 0
Labegorre, Bernard Paris, FR 15 80
Renna, Carlo Maule, FR 3 0
Tsiava, Remi Saint Germain-les-Corbeil, FR 33 228

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