Wet-process phosphoric acid extraction tail gas treatment device

The utility model discloses a wet-process phosphoric acid extraction tail gas treatment device, which relates to the technical field of wet-process phosphoric acid tail gas treatment and comprises a preset demister, a pre-washing device and a first washing device which are sequentially connected alo...

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Bibliographische Detailangaben
Hauptverfasser: ZHANG YUNCHUAN, LIU DESHENG, DONG TINGNAN, DUAN SIQIN, JIANG YONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a wet-process phosphoric acid extraction tail gas treatment device, which relates to the technical field of wet-process phosphoric acid tail gas treatment and comprises a preset demister, a pre-washing device and a first washing device which are sequentially connected along a tail gas flowing path, a pre-spraying assembly is arranged in the pre-washing device, a first spraying assembly is arranged in the first washing device, a liquid outlet of the pre-washing device is connected with the fluosilicic acid storage tank, a first washing liquid circulation pipeline is arranged between a liquid outlet of the first washing device and an inlet of the pre-spraying assembly, and the bottom of the pre-washing device is connected with a concentration meter. The first washing liquid circulating pipeline is provided with a pre-washing liquid circulating pump; the first washing liquid circulating pipeline enables washing liquid in the first washing device to enter the fluosilicic acid storage t