鼓风湿度增加是锰铁高炉夏秋两季生产指标变差的根本原因。
The increase of blast humidity is the key factor that affects production indexes of FeMn blast furnace during summer and autumn.
焦炭质量对高炉炉况具有重要影响，会导致高炉炉况变差，不利于生产指标的改善。
The quality of coke have an important effect on the blast furnace conditions. It will cause the variation of blast furnace conditions, which is disadvantageous to production indexes improvement.
伞状喷雾使油气混合改善，在中低工况下可以得到良好的性能和排放指标，但其贯穿距短，在高工况下性能和排放变差。
The conical spray can improve the mixing of fuel and air, and hence lead to good performance and emissions.
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