SNCR (Selective non catalytic reduction) denitration device

The utility model provides a SNCR (Selective non catalytic reduction) denitration device, include: flue, flue form to cylinder roughly is equipped with at least two sets of spray gun inserted holes group of running through the lateral wall in order to be used for drawing forth coal -fired flue gas on the lateral wall of flue, and every group spray gun inserted hole is organized including the justspaced apart distribution on the cross section of these a plurality of spray gun inserted holes at the flue of a plurality of spray gun inserted holes, inside a plurality of spray guns are inserted respectively the one -to -one and just extend to the flue in the spray gun inserted hole, being equipped with the jet orifice on every spray gun and being used for to spraying urea in the flue, every group spray gun inserts intraoral spray gun and forms one deck urea jet face. According to the utility model discloses SNCR (Selective non catalytic reduction) denitration device, through set up a plurality of spray gun inserte