High inlet temperature of the SO2 fan
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What are the reasons for high temperatures at the outlet of the drying tower or at the inlet of the SO2 fan?
Or there is insufficient liquid level in the drying pump, and the heat exchange area of the drying element is small
It is recommended that the original poster actually measure the acid and water temperatures at the inlet and outlet of the anode protection acid cooler, as well as the acid temperatures at the top and bottom of the tower. This will make it easier to determine whether the problem lies with the acid cooler, the acid pump, or the water pump. Also, is the flue gas temperature at the outlet of the electric demister higher than before?
Using the fault tree analysis to trace back upstream of the fan: poor heat exchange in the dryer tower’s acid cooler, or high temperature at the inlet of the circulating cooling water； High purification outlet temperature, etc
Is the temperature of the smoke after it has been purified by you high? Are there any problems with the gas cooling tower for flue gas purification? Is there any leakage in the demister of the electrostatic demister? Is there an issue with the acid temperature in the drying tower, or with the packing in it?