Desulfurization wastewater chloride ion extraction and sodium sulfate and ammonium chloride output system

The utility model discloses a desulfurization wastewater chloride ion extraction and sodium sulfate and ammonium chloride output system. The device comprises a desulfurizing tower, a wastewater regulating tank, a reaction sedimentation tank, a tubular microfiltration device, a regulating water tank and a chloride ion extractor which are connected in sequence, the downstream of the chloride ion extractor is respectively communicated with a buffer tank and a first extractant buffer tank; a sodium sulfate solution generated by the chloride ion extractor sequentially passes through the buffer tank, the cooling crystallizer and the solid-liquid separator; the chlorine-rich extraction agent sequentially passes through a first extraction agent buffer tank and a chloride ion reverse extraction machine and reacts with concentrated ammonia water in the chloride ion reverse extraction machine to generate an ammonium chloride solution and a regenerated extraction agent; an ammonium chloride solution passes through the ev