Performance Analysis of the Direct-fired System for 1000 MW Power Units and the Operation Optimization

The pulverizing systems of 2×1 000 MW power units in a power plant have been analyzed from its dynamic separator speed characteristics and the adjustment test of the grinding roll loading pressure to the coal powder output characteristics of the pulverizer.The influenced coal powder output and its unit consumption factors have also been explained in the paper such as the outlet temperature of the pulverizer,ventilation amount and the pressure difference of the grinding bowl etc.so as to obtain the economic running parameters of the pulverizer.