Preheating method and apparatus

Details Preheating method and apparatus Preheating method and apparatus

F - Mech Eng,Light,Heat,Weapons

27

D

39/34

F27D 13/00 (2006.01) F27B 7/20 (2006.01)

Patent

CA 1149610

24436 ABSTRACT A method and apparatus for preheating par- ticulate material in which the particulate material is transferred from an upper storage bin to a lower annular flow passage by a plurality of connecting chutes and the particulate material is preheated in the annular flow passage by hot kiln gases flowing in countercurrent heat exchange relationship with the particulate material and, in addition, by hot kiln gases introduced into the annular flow passage from the lower regions of radially extending ducts.

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