IMPIANTO DI FILTRAZIONE DI UN LIQUIDO CONTAMINATO UTILIZZANDO UN MATERIALE GRANULARE RINNOVABILE PNEUMATICAMENTE.

摘要

A fluid purification system having a vertical bed of granular material disposed in a tank which communicates with a charging compartment and a discharging compartment respectively positioned above and below the tank. The charging compartment is provided with a perforated bottom plate and an injection nozzle which blows in the granular material horizontally so that it drops by gravity into the beds through the plate. The discharging compartment comprises a hopper in the form of a dihedron whose arris is inclined to the horizontal in the direction of a drainage port provided at the base of the compartment. The system is of particular utility in the nuclear and chemical industries for the purification of air contaminated with radioiodines or noxious gases.