System for recycling SO2 in tail gas

The invention discloses a system for recycling SO2 in tail gas. The system comprises a first-stage circulating and recycling system and a second-stage circulating and recycling system; the first-stage circulating and recycling system comprises a washer, a first recycling pump, a transfer barrel and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FANG JUNWEN, LUO CAIJUN, LI WENTING, DU JIANTING, ZHANG CHAOHUI, DONG NINGNING, FANG SHIZHONG, XU HAIMIN, YE YONGLE, MA HONGWEN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a system for recycling SO2 in tail gas. The system comprises a first-stage circulating and recycling system and a second-stage circulating and recycling system; the first-stage circulating and recycling system comprises a washer, a first recycling pump, a transfer barrel and a first circulating tank, a washer air inlet with a downward air outlet direction is formed in the upper portion of the washer, and a washer discharging opening is formed in the lower portion of the washer; a first spray head with an upward spray direction is arranged in the washer; the second-stage circulating and recycling system comprises a reaction tower, a second recycling pump and a second circulating tank, a reaction tower air outlet is formed in the top of the reaction tower, a reaction tower liquid outlet is formed in the bottom of the reaction tower, a reaction tower air inlet is formed in the lower middle portion of the reaction tower, and a second spray head with a downward spray direction is arranged i