WASTES TREATING METHOD AND DEVICE

摘要

A wastes treating method comprising the steps of incompletely burning or partially oxidizing wastes in a partial oxidation furnace for causing a combustion reaction to generate a combustible gas having an oxygen-equivalent concentration of -30 to 1% at the outlet of the partial oxidation furnace, introducing the combustible gas into a dust separator at 250 to 800 DEG C to reduce a dust concentration to up to 0.1g/Nm<3>, removing, as required, hydrogen chloride from the dedusted combustible gas by a wet type gas treating device down to up to 20 ppm, and then burning the gas at high temperatures in a combustion furnace, whereby wastes are partially oxidized to keep low a dust concentration otherwise causing the corrosion of boiler tubes, and an efficient heat recovery from a combustion exhaust gas is ensured.