Treatment method of dioxin air pollutants in scrap copper smelting smoke

The invention relates to a treatment method of dioxin air pollutants in scrap copper smelting smoke and belongs to waste heat utilization and waste gas treatment methods. The treatment method of the dioxin air pollutants in the scrap copper smelting smoke is characterized in that a treatment device is composed of a primary intensified combustion furnace (1), a secondary intensified combustion furnace (2), a silicon nitride porous ceramic filter (3), a counterflow heat exchange waste heat boiler (4), a combined type heat pipe exchanger (5), a bag dust collector (6), a desulfurization system (7), an active carbon adsorption tower (8) and an induced draft fan (9), and the primary intensified combustion furnace (1), the secondary intensified combustion furnace (2), the silicon nitride porous ceramic filter (3), the counterflow heat exchange waste heat boiler (4), the combined type heat pipe exchanger (5), the bag dust collector (6), the desulfurization system (7), the active carbon adsorption tower (8) and the induced draft fan (9) are connected in sequence; by the adoption of the treatment method of the dioxin air pollutants in the scrap copper smelting smoke, the waste heat recovery efficiency is high, and the (dioxins) air pollutants generated in the scrap copper smelting process can be effectively treated. In treated exhaust tail gas, the item indexes of all air pollutants are lower than the values specified in table 3 of GB 31574-2015. The emission of the dioxin air pollutants is smaller than or equal to 0.1 ngTEQ/m . The recovery rate of smoke waste heat is equal to or higher than 95%.