Method and cooler for cooling hot particulate material

Details Method and cooler for cooling hot particulate material Method and cooler for cooling hot particulate material

F - Mech Eng,Light,Heat,Weapons

27

D

F27D 15/02 (2006.01)

Patent

CA 2572411

Described is method as well as a cooler (1) for cooling hot particulate material which has been the subject of heat treatment in an industrial furnace, such as a rotary kiln (3) for manufacturing cement clinker, by which method the hot material from the kiln (3) is directed to an inlet grate (21) in the cooler (1), in which cooling air from an underlying compartment (24) is led via a number of channels (28) through gaps (20) in the inlet grate for cooling the hot material and where compressed air from a separate system (25) via a number of ducts (26) can be intermittently injected into the material on the inlet grate (21). The channels (28) for cooling air are blanked off in connection with the injection of compressed air.

L'invention concerne un procédé ainsi qu'un dispositif de refroidissement (1) permettant de refroidir une matière particulaire chaude ayant été soumise à un traitement thermique dans un four industriel, notamment un fourneau rotatif (3) permettant de produire du clinker. Selon ce procédé, la matière chaude du fourneau (3) est acheminée jusqu'à une grille d'entrée (21) du dispositif de refroidissement (1). De l'air de refroidissement issu d'un compartiment sous-jacent (24) est guidé par un certain nombre de canaux (28) à travers des ouvertures (20) de la grille d'entrée aux fins de refroidissement de la matière chaude et là l'air comprimé du système distinct (25) peut être injecté par intermittence dans la matière sur la grille d'entrée (21) par un certain nombre de conduits (26). Les canaux (28) de refroidissement d'air sont obturés en liaison avec l'injection d'air comprimé.

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