ZGM95G-Ⅱ型中速磨煤机堵磨原因分析及风煤比优化调整  

Analysis of the Reasons for the Plugging of ZGM95G-ⅡMedium-Speed Coal Mill and Optimization of the Adjustment of Air-to-Coal Ratio

作　　者：纪括 平利晖 JI Kuo;PING Lihui(Jiantou Chengde Thermal Power Co.,Ltd.,Chengde,Hebei Province,067000 China)

机构地区：[1]建投承德热电有限责任公司,河北承德067000

出　　处：《大众科学》2024年第16期19-21,共3页China Public Science

摘　　要：承德热电有限责任公司350 MW直流锅炉配置的ZGM95G-Ⅱ型中速磨煤机在机组通过168以来,运行中频繁发生出力不足、堵磨以及堵粉管等问题.分析表明:煤质不同使完全析出挥发分燃烧所需的风量存在一定差别,一次风量不足又造成堵磨和堵粉管.提高ZGM95G-Ⅱ型中速磨煤机运行稳定性的主要手段是调整合理的风煤比.Since the commissioning of the 350 MW direct current boiler equipped with the ZGM95G-Ⅱtype medium-speed coal mill at Chengde Thermal Power Co.,Ltd.,the unit has frequently encountered issues such as insufficient output,mill blockages,and clogged pulverized coal pipes.Analysis indicates that the varying coal qualities require different amounts of air for the complete release of volatile matter.Insufficient primary air volume results in mill blockages and clogged pulverized coal pipes.The primary method to improve the economic efficiency and stability of the medium-speed coal mill operation is to control a reasonable air-coal ratio.

关 键 词：ZGM95G型中速磨煤机 堵磨 风煤比 优化调整 

分 类 号：TM621[电气工程—电力系统及自动化]