Emergency slurry tank system is formed by 1 emergency slurry tank and 2 emergency slurry pumps,
1 agitator and relevant valves and instruments. Its function is to send gypsum slurry to emergency tank for short storage when FGD system is under emergency or when absorber needs overhaul and to return gypsum slurry to absorber when FGD resumes normal operation or restarts. On the upper part of emergency slurry tank, radar liquid level gauge, the real-time measured slurry liquid level signal can be shown or interlock controlled. One pressure transmitter is installed on the main pipe of outlet 2 pumps, which can monitor whether the outlet pressure is normal (between 2.8 to 4.3bar) when the pumps are in operation. When the agitator blades are emerged in the slurry, the agitator must be in operation to avoid slurry deposit.
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