燃煤锅炉制粉系统的优化运行试验  

THE OPTIMIZED EXPERIMENTS OF MILLING SYSTEM FOR COAL-FIRED BOILER

作　　者：吴东垠[1] 盛宏至[2] 魏小林[2] 余立新[2] 张厚超 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室,天津市南开区300072 [2]中国科学院力学研究所,北京市海淀区100080 [3]内江发电总厂,四川省内江市641005

出　　处：《中国电机工程学报》2004年第12期218-221,共4页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50376068)。~~

摘　　要：该文在磨煤机出力变化时,进行了优化分离器转速和一次风量的试验。试验发现:当磨煤机出力为12 kg／s时,建议分离器转速为85r／min、风粉比为2.0;当磨煤机出力为8 kg／s时,建议分离器转速为70r／min、风粉比为2.5。文中得出的风／粉比和分离器转速／给煤量曲线可以指导磨煤机的运行。The experimental research has been done to optimize classifier speed of pulverized coal milling system and primary air flow rate of the boiler when the system load is varied. The results show that: when the mill load is 12 kg/s, the recommended classifier speed is 85 r/min and the ratio of air to pulverized coal is 2.0 in mass; when the mill load is 8 kg/s, the recommended classifier speed is 70 r/min and the ratio of air to pulverized coal is 2.5 in mass. The conclusion of the in mass pulverized coal, the curve for classifier speed/coal capacity, both can be used as the guidance for milling system operating.

关 键 词：磨煤机 出力 分离器 制粉系统 一次风量 燃煤锅炉 风粉 转速 优化运行 

分 类 号：TM621[电气工程—电力系统及自动化] TK223.25[动力工程及工程热物理—动力机械及工程]