双调节分流式分离器优化改造分析  

Optimisation and Modification Analysis of Double-Control Shunt Separator

作　　者：尹玉龙 赵瑞 杨一方 YIN Yulong;ZHAO Rui;YANG Yifang(Shanxi Datang International Yungang Thermal Power Co.,Ltd.,Datong 037001,China)

机构地区：[1]山西大唐国际云冈热电有限责任公司,山西大同037001

出　　处：《电工技术》2025年第6期179-181,共3页Electric Engineering

摘　　要：旧有的中速磨分离器在长时间运行后已无法满足如今对出口煤粉质量的新需求,为提高中速磨出口的煤粉质量,增强对出口煤粉的调节能力,某发电公司将其某炉中的一台分离器改造为双调节分流式分离器,并对整磨改造前后的运行特性进行试验研究对比,研究了磨煤机不同出力下的特性,并分析了影响最大出力的因素,再对不同的挡板调节特性进行了研究,得到了改造后整磨最佳运行工况。试验结果表明双调节分流式分离器的结构能有效对出口煤粉细度进行调节,且径向叶片对煤粉细度影响更大;此外,双调节分流式分离器不仅降低了出口煤粉细度R 90、R 200,而且使煤粉均匀性指数维持在1.3以上。该改造既提升了出口煤粉质量,又优化了电厂的灵活运行能力与经济运行效率。In order to improve the quality of pulverized coal exported from the medium-speed mill and to enhance the ability to regulate the pulverized coal output,a power generation company transformed a separator in one of its furnaces into a double-control shunt separator.Experimental research was carried out to compare the operating characteristics of the whole mill before and after the transformation.The characteristics of the mill at different outputs were studied,and the factors affecting the maximum output were analyzed.The different baffle adjustment characteristics were then studied,and the optimal operating conditions of the whole mill were obtained after the modification.The test results show that the structure of the double-control shunt separator can effectively regulate the fineness of exported pulverized coal.The radial blade has a greater influence on the fineness of pulverized coal.The double-control shunt separator not only reduces the fineness of exported pulverized coal,as measured by R-90 and R-200,but also maintains the homogeneity index of the pulverized coal at more than 1.3.This modification improves the quality of exported pulverized coal and increases the flexible operation capability and economic operation efficiency of the plant.

关 键 词：双调式分流式分离器 煤粉均匀性指数 磨煤机出力特性 挡板调节特性 

分 类 号：TD94[矿业工程—选矿]