고성능 회전형 미분탄 분리장치의 효과에 관한 실험적 연구

If the fineness of pulverized coal is increased in the coal-fired stations, unburned carbon in ash shall be reduced and combustion efficiency shall be improved. Especially, In connection with the environmental protection issue recently, the reduction of NOx is a secondary advantage. So, this study was conducted in the pilot scale pulverizer model and drop tube furnace that the used of static and dynamic classifier for the high performance effect of rotating pulverized coal separator. The results of the experiment showed that the amount of pulverized coal passing 200 mesh of the pulverizer with dynamic classifier was higher than that of the pulverizer with static classifier. Also unburned carbon in ash and NOx emission were reduced. Additionally, In case of the pulverizer with dynamic classifier, the power consumption and pressure loss were decreased than that of the pulverizer with static classifier based on the same fineness level.