On the basis of the statistical data of 8 coal-fired units

the unit power consumption was used to analyze the energy consumption of the positive pressure pneumatic ash disposal system. According to the present situation of the design and operation of the pneumatic ash removal system in China

a calculation method for evaluating whether there is energy saving potential in the pneumatic ash removal system was presented. Moreover

taking the pneumatic ash removal system of unit 1 and unit 2 of a power plant as the example

the results obtained are in agreement with the actual energy-saving effect of the optimized system

proving that this method can be used to evaluate the energy saving potential of the positive pressure pneumatic ash removal system of the same type of coalfired units. In addition

a real-time optimization method for cycle time of ash conveying units in the pneumatic ash removal system was also proposed

which can provide a reference for optimization of the pneumatic ash removal system during peak regulation of the coal-fired units.