粗粉分离器细度调节特性的试验研究  

Experimental Research on Fineness Adjustment Characteristics of Coarse Powder Separator

作　　者：周亮 陈文 Zhou Liang;Chen Wen(Guodian Changyuan Jingzhou Thermal Power Co.,Ltd.Jingzhou 434000,China;State Grid Hunan Electric Power Company Limited Research Institute,Changsha 410007,China;Hunan Key Laboratory of Efficient&Clean Thermal Power Generation Technology,Changsha 410007,China)

机构地区：[1]国电长源荆州热电有限公司,湖北荆州434000 [2]国网湖南省电力有限公司电力科学研究院,湖南长沙410007 [3]高效清洁火力发电技术湖南省重点实验室,湖南长沙410007

出　　处：《湖南电力》2020年第6期32-35,共4页Hunan Electric Power

基　　金：湖南省科技创新平台与人才计划(2016TP1027);高效清洁火力发电技术湖南省重点实验室开放研究基金项目(XDKY-KF-2019-01/XDKY-2019-05)。

摘　　要：分析磨煤机煤粉细度对锅炉运行安全性经济性和环保指标的影响,介绍了煤粉细度调节试验。试验结果表明,当分离器转速在500~900 r/min时,煤粉细度与分离器转速之间存在较好的线性调节关系;在分离器转速不变的情况下,随着磨煤机出力的增大,煤粉细度R90值逐渐增大,煤粉细度与磨煤机出力之间存在着二阶函数关系。通过煤粉细度调整试验可得到磨煤机在不同出力下的分离器转速控制曲线,可有效提高锅炉运行经济性。This paper analyzes the influence of pulverized coal fineness on the safety, economy and environmental protection index of boiler operation,and introduces the test of pulverized coal fineness regulation.The test results show that,there is a good linear relationship between the fineness of coal and the speed of the separator when the speed is between 500 rpm to 900 rpm;under the condition of the constant separator rotating speed, as the output of the mill increases, the value of the pulverized coal fineness R90 gradually increases, and there is a second-order function relationship between the fineness of the coal powder and the output of the mill. The separator speed control curve of the mill under different output can be obtained, which can effectively improve the operating economy of the boiler.

关 键 词：粗粉分离器 煤粉细度 转速 磨煤机出力 试验 

分 类 号：TK223.[动力工程及工程热物理—动力机械及工程]