Smoke gases at high flow-rates are treated, to destroy nitrogen oxides, by injection of liquid reducing agents with high efficiency dispersal by vortex shedding from an inclined planar baffle

摘要

Arrangement for mixing liquid into a flue carrying a high flowrate of smoke gas comprises a lance (5) with at least two nozzles (4a,b) directed against the flow and a planar mixing baffle. The nozzles may be mounted either up- or down- stream of the baffle and arranged at an angle beta = 60 o -120 o with the baffle at an angle alpha =30 o-90 o, both to the gas flow direction.