Multi-process flue gas purification system and its control method

摘要

The present invention provides a multi-process flue gas purification system and a control method thereof, wherein the flue gas purification system includes an activated carbon intensive desorption activation subsystem 2 and flue gas purification devices 110 and 120 corresponding to each process, One flue gas purification device 110 , 120 is connected to the activated carbon centralized desorption activation subsystem 2 through the activated carbon transport subsystem 3 , respectively. The main control unit represents the activated carbon circulation flow rate of the activated carbon centralized desorption activation subsystem 2 using the total sum of the activated carbon circulation flow rates sent by the process control units corresponding to all processes, and controls the activation subsystem control unit 102 . By adjusting a given frequency of the belt scale 26, the material supply device 22 and the material discharge device 24 in the activated carbon centralized desorption activation subsystem 2, the activated carbon circulation flow rate of the activated carbon centralized desorption activation subsystem 2 is adjusted. and the sum total of the activated carbon circulation flow rates of the flue gas purification devices 110 and 120 in each process are substantially the same.