HEAT-AND-MASS EXCHANGE UNIT Russian patent published in 1998 - IPC

FIELD: equipment for cleaning process and vent gases from solid particles of aerosols and gaseous contaminants, may be used in any branch of industry for cleaning and cooling high-temperature dust-laden gases and entrapping acid gases and aerosols. SUBSTANCE: heat-and-mass exchange unit has cylindrical housing 1 with coaxial gas conduit 2 positioned within housing 1 and defining, together with nozzle 3, hollow scrubber where gases are abruptly cooled and aerosol solid particles are entrapped. Gas conduit 2 and jet former provided with annular chamber 4 define foam-and-jet scrubber free of nozzles and adapted for further cooling of gases and removal of gaseous contaminating substances. The unit is further provided with water pumps provided with filters 5 and 6, central tank 7 and annular tank 8, gas supply branch pipe 9 and gas discharge branch pipe 10, spraying liquid discharge branch pipes 11 and 12, drop catcher 13, skirt 14 and refrigerator 15. Such construction allows dust-laden gas cleaning and cooling capacity of unit to be increased by 10-15%. EFFECT: increased efficiency, reduced metal usage by combining two cleaning stages in single housing. 4 cl, 4 dwg