METHOD FOR RENDERING HARMLESS OF EFFLUENT GASES OF WASTE BURNING UNITS AND DEVICE FOR ITS EMBODIMENT Russian patent published in 1997 - IPC

FIELD: rendering harmless of effluent gases of waste burning units. SUBSTANCE: one flow of plasma is introduced in flow of hot fresh flue gas from the unit of waste burning for thermal decomposition of toxic compounds. Flow of fresh flue gas is preferably heated at the stage of recuperation in high-temperature heat exchanger by treatment of flue gas with plasma beam in countercurrent conditions with subsequent introduction into fresh flue gas heated by at least one beam of plasma gas. Then gas mixture at high temperature is used for heating the flow of fresh flue gas at the stage of recuperation and cooled down to temperature which is yet higher than that of effluent gas. Then gas mixture is cleaned in the system of waste heating and cleaning of flue gas. EFFECT: higher efficiency. 13 cl, 1 dwg