In order to enhance the efficiency of soot blowing in power station boiler

a fouling monitoring model was established based on the heating surface at the rear flue of the coal-fired boiler

and the field data of a 300 MW unit was adopted to validate the correctness of the model.On this basis

a set of intelligent gas soot blowing system was developed.The judgment of soot blowing was given according to the calculation results of the model.The gas pulse soot blowing device was controlled by PLC

thus the intelligent soot blowing of the rear flue of the coal-fired boiler was achieved.