Dry cleaning system for blast-furnace gas
The system consists of 8 parts: a flue, a combustion candle, a cooler, a bag filter, a device for unloading the trapped dust and its transportation, throttle valves, candles for purging the gas pipeline, a hopper for collecting dust particles .
The flue performs the function of connecting the intercone space of the blast furnace with the pure gas collector. The blast-furnace gas cooler plays an important role in the gas path by reducing the gas temperature to an acceptable level for operation. It includes a gas duct (1400 mm), a cabinet with solenoid valves, a piping system and 18 two-channel nozzles arranged in 6 rows and combined with distribution manifolds.
Distinctive features of FRIR developed by Dneproenergostal organization: temperature corrector (in the range of 100-180°C ); separately located filter sections; high-speed valves designed for pulsed regeneration of sleeves; application of compressed nitrogen for this regeneration.