Nitric acid tail gas recovery device
The utility model discloses a nitric acid tail gas recovery device which comprises a tail gas inlet pipe, the tail gas inlet pipe is connected with a cooling chamber, and the cooling chamber is communicated with a spray tower; a spraying structure is arranged at the top of the spraying tower; an exh...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a nitric acid tail gas recovery device which comprises a tail gas inlet pipe, the tail gas inlet pipe is connected with a cooling chamber, and the cooling chamber is communicated with a spray tower; a spraying structure is arranged at the top of the spraying tower; an exhaust port is further formed in the top of the spray tower; a tail gas online monitoring system is arranged at the exhaust port; a gas outlet of the tail gas online monitoring system is connected with a first exhaust pipeline and a second exhaust pipeline; wherein the first exhaust pipeline leads tothe atmosphere, the second exhaust pipeline is communicated with an air inlet hole in the bottom of the spray tower, a first electromagnetic valve is arranged on the first exhaust pipeline, a second electromagnetic valve is arranged on the second exhaust pipeline, and the first electromagnetic valve, the second electromagnetic valve and the tail gas online monitoring system are electrically connected with the control syst |
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