火电厂粗粉分离器的改型设计与应用  

Design and Application of a New-Type Dust Separator

作　　者：边青[1] 谭厚章[1] 余战英[1] 胡永庆[2] 

机构地区：[1]西安交通大学能动学院,西安710049 [2]新疆独山子石化公司,独山子833600

出　　处：《现代电力》2003年第3期13-16,共4页Modern Electric Power

摘　　要：独山子热电厂粗粉分离器改造前为径向挡板式结构 ,自投产以来存在着煤粉细度大、均匀性差、分离器阻力大、磨损严重、出力不足等问题。采用一种新型的轴向挡板式粗分离器对其原粗粉分离器进行了成功的设计改造。煤粉细度R90 由改前的 2 5 %～ 2 8%降为 1 5 %～ 1 8%左右 ,燃烧着火稳定性显著提高 ,飞灰含碳量降低 ;分离器阻力降低 2 0 % ,大约为 5 0 0～ 70 0Pa。整个机组的效率明显改善。The dust separator of Dushanzi thermal power plant was an old type with radial vane before transformation.The dust separator existed some serious problems such as low separation efficiency,low uniformity,large resistance,wear and tear seriously,not enough output.In this paper,a new kind of dust separator with axial vane was designed to reform the old one.The fineness R 90 of pulverized coal is improved from 25%～28% to 15%～18%,The stability of combustion is more better than before.The proportion of carbon in the ash decreased about.and The resistance of the dust separator decreased to 500-700Pa,the efficiency of the boiler is also increased.

关 键 词：火电厂 粗粉分离器 改型设计 锅炉 制粉系统 新疆独山子热电厂 

分 类 号：TM621.2[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]