DEVICE IN NOx REDUCING EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To easily maintain a spray nozzle. SOLUTION: In the device in the equipment for reducing NOx in a flue gas discharge from a combustion equipment, a flue gas duct 1 for conducting the flue gas is communicated with a reactor. A static mixer is arranged in the duct 1, and a lance 8 provided with a spray nozzle 9, guided to piece the wall 6 of the duct 1 is opened within the working range of the mixer. The lance 8 is formed as the sprayed reducing agent transporting pipe 8, and the spray nozzle 9 is arranged in the region where the transporting pipe 8 pierces the wall 6 of the duct 1.