Semi-dry type deacidification device for household garbage incineration flue gas

The utility model relates to the technical field of flue gas pollution treatment, in particular to a household garbage incineration flue gas semi-dry deacidification device which comprises a lime slurry preparation device, a semi-dry reaction tower, a cyclone dust collector and a fly ash treatment device. The lime slurry preparation device, the semi-dry reaction tower and the cyclone dust collector are sequentially communicated through pipelines, the fly ash treatment device is respectively communicated with the semi-dry reaction tower and the cyclone dust collector through pipelines, and the fly ash treatment device is used for collecting large-particle solids at the bottoms of the semi-dry reaction tower and the cyclone dust collector. A smoke inlet pipe, a rotary sprayer and a cleaning assembly are respectively arranged on the semi-dry reaction tower, and the smoke inlet pipe is communicated with one side, far away from the cyclone dust collector, of the semi-dry reaction tower. The rotary sprayer and the