F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
F27B 7/36 (2006.01) F27B 7/14 (2006.01) F27B 7/28 (2006.01) F27D 1/04 (2006.01)
Patent
CA 2412727
A rotary kiln (18) includes a novel air conveying system for delivering a supply of port air beneath the material bed of feed stock passing through the interior of the kiln. The air conveying system includes an air inlet port (50) disposed in the shell of the kiln, a main air conveying channel (85) which communicates with the air inlet port, and a plurality of air vent channels (75) communicating with the main air conveying channel and the interior chamber of the kiln. The main air conveying channel (85) is formed integrally in the refractory bricks which line the inner surface of the kiln shell and extends longitudinally and parallel to the rotary axis of the kiln. The air vent channels (75) extend through the refractory bricks substantially radially with respect to the rotary axis of the kiln.
L'invention concerne un four tournant (18) comportant un nouveau système de convoyage d'air destiné à alimenter de l'air de prise en dessous du lit de matériau de charge d'alimentation passant dans le four. Ledit système de convoyage d'air est composé d'un port de prise d'air (50) disposé dans la coquille du four, d'un canal de convoyage d'air principal (85) communiquant avec le port de prise d'air, et d'une pluralité de canaux d'aération (75) communiquant avec le canal de convoyage d'air principal et la chambre intérieure du four. Le canal de convoyage d'air principal (85) est formé entièrement dans les briques réfractaires longeant la surface intérieure de la coquille du four, et s'étend longitudinalement et parallèlement é l'axe rotatif du four. Les canaux d'aération (75) s'étendent au travers des briques réfractaires de manière essentiellement radiale par rapport à l'axe rotatif du four.
Dock Neil R.
Maciejewski Edward T.
Borden Ladner Gervais Llp
Metso Minerals Industries Inc.
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