CHLORINE BYPASS FACILITY AND OPERATING METHOD THEREFOR, CEMENT CLINKER MANUFACTURING APPARATUS, AND CEMENT CLINKER MANUFACTURING METHOD

To provide a chlorine bypass facility which can be stably operated.SOLUTION: A chlorine bypass facility 90 comprises: an extraction port 21A for extracting kiln exhaust gas from a kiln bottom 52 of a cement kiln 50, a rising duct 42, or between them; and a classification section 22 for separating coarse dust of raw material dust from mixed gas obtained by merging the extracted gas extracted from the extraction port 21A and the exhaust gas generated in a combustion furnace 32 to obtain derived gas containing fine powder of the raw material dust. The mixed gas is obtained by merging extracted gas having a temperature lower than that of gas extracted through the extraction port 21A with exhausted gas having a temperature higher than that of the extraction gas.SELECTED DRAWING: Figure 1 【課題】安定的に運転することが可能な塩素バイパス設備を提供すること。【解決手段】塩素バイパス設備９０は、セメントキルン５０の窯尻５２、ライジングダクト４２又はこれらの間からキルン排ガスを抽気する抽気口２１Ａと、抽気口２１Ａから抽気された抽気ガスと燃焼炉３２で生じた排ガスとを合流させて得られる混合ガスから原料ダストの粗粉を分離して原料ダストの微粉を含む導出ガスを得る分級部２２と、を備える。混合ガスは、抽気口２１Ａで抽気されたときよりも低い温度を有する抽気ガスと、当該抽気ガスよりも高い温度を有する排ガスとを合流させて得られる。【選択図】図１