立式辊磨煤粉制备系统节能降耗改造  

Energy Saving and Consumption Reducing Modification for Pulverized Coal VRM Grinding

作　　者：刘迪 杜鑫[1] 武晓 刘畅 LIU Di;DU Xin;WU Xiao;LIU Chang(Tianjin Cement Industry Design&Research Institute Co.,Ltd.,Tianjin 300400,China;Sinoma(Tianjin)Powder Technology Machinery Co.,Ltd.,Tianjin 300400,China)

机构地区：[1]天津水泥工业设计研究院有限公司,天津300400 [2]中材(天津)粉体技术装备有限公司,天津300400

出　　处：《水泥技术》2023年第3期50-55,共6页Cement Technology

摘　　要：针对原煤物料特性,为解决立式辊磨煤粉制备系统阻力高、选粉机分选效率低、系统运行电耗高、配套回转窑能力不足等问题,研发设计了选粉机新型动叶片、静叶片、密封结构以及立式辊磨加压拉杆。改造后,降低了磨内物料循环负荷,系统阻力降低500~1 000Pa,系统电耗降低2.0~4.0kW·h/t,磨机产量提升10%~20%,保障了水泥窑系统的高效运转。According to raw coal characteristics,in order to solve the problems of pulverized coal grinding system of high resistance,low separator efficiency,high system power consumption and insufficient capacity of supporting kiln,a new moving blade and static blade,sealing structure and VRM pressurization rod are developed and designed.After modification,pulverized coal cyclic load inside VRM is reduced and obtain 500~1 000Pa low for system resistance.Those effects make the system power consumption reduced by 2.0~4.0 kW·h/t,and the mill output increased by 10%~20%,ensuring kiln higher efficient operation.

关 键 词：煤粉立式辊磨 选粉机 加压拉杆 动静叶片 

分 类 号：TQ172.632.5[化学工程—水泥工业]