PROJECTION DEVICE FOR REGENERATION OF DETERIORATED CATALYST

摘要

PROBLEM TO BE SOLVED: To make it possible to rapidly and surely regenerate deteriorated catalyst functions in the state of keeping a catalyst pack installed in a flue gas denitrification apparatus. SOLUTION: This projection apparatus comprises a projecting means 23 which consists of a projecting member 15 consisting of a projection block section pierced with many nozzle mounting holes at the same number and the same intervals as those of another catalyst group constituting one catalyst piece and connecting sections disposed on the four way outer periphery sides of the projection block section and many insertion nozzles 21 attachably and detachably inserted into each of the many nozzle mounting holes, an excessive wear prohibiting and flow regulating means 25 which is pierced with many flow regulating holes of the same external shape as the external shape of the projecting member 15 and of the same number and the same hole diameter as those of the nozzle mounting holes formed at the plate thickness assuring a flow distance sufficient to induce a flow regulation effect in a polishing material flowing together with air at the same intervals, a casing member 43 and a polishing material supply means 69 of a cast net-like diffusion flow structure which consists of bearing members freely turnable like a pendulum around the inflow central axis on the inflow side of the casing member 43 and a polishing material introducing members 59.