| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a denitration apparatus which reduces NO<SB>x</SB>in an exhaust gas generated in a rotary kiln at low cost. <P>SOLUTION: An additive for denitration sprayed at an addition point 16 from an additive addition unit 15 for denitration is diffusion-mixed in a raw-material supplying unit 20 for supplying a raw material to be charged into a kiln of the rotary kiln 10. The raw material, diffusion-mixed with the additive for denitration, is directly charged from the raw-material supplying unit 20 into the kiln and reaches the suitable temperature area, positioned near the middle of the length direction of the rotary kiln 10 and high in NO<SB>x</SB>reduction effect, so that the amount of NO<SB>x</SB>produced is reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
