| 摘要 |
PROBLEM TO BE SOLVED: To provide a cement firing equipment capable of being reasonably structured where heat recovery is performed with high efficiency by introducing a high temp. extraction gas from a kiln directly to a heat exchanger. SOLUTION: This cement firing equipment is constituted so that the high temp. extraction gas extracted from the inlet position of the rotary kiln 11 and a waste gas from a preheater 12 are supplied through a hot gas supply passage 24 to the heat exchanger 30, where fine particles are fluidized to generate a jet stream layer, the solid matter is separated in a separator 40 and the raw material portion separated in the separator 40 is returned to the rotary kiln 11 through a kiln return passage 51.
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