Device and method for deacidifying flue gas of hazardous waste incineration system

The invention relates to a device and a method for deacidifying flue gas of a hazardous waste incineration system. Comprising a deacidification tower and a quench tower, a spraying structure is arranged on the upper portion in the deacidification tower, a solid-liquid separation area is arranged on the lower portion of the deacidification tower, a flue gas inlet is formed in the middle of the deacidification tower, an aeration area is arranged below the flue gas inlet in the deacidification tower and above the solid-liquid separation area, and a flue gas outlet is formed in the top of the deacidification tower. And thick slurry obtained in the solid-liquid separation zone is introduced into a quench tower. A deacidification tower is utilized, a circulating deacidification method is adopted, the technologies of spraying deacidification, aeration, solid-liquid separation and the like are integrated, and a heat exchange technology is added. According to the technology, the good deacidification effect can be guar