辊压机联合粉磨系统过粉磨原因分析及解决措施  

Cause Analysis and Solution of Overgrinding in Roller Press Combined Grinding System

作　　者：王巧林 杜静晓 WANG Qiaolin;DU Jingxiao(Jiaozuo Qianye Cement Co.,Ltd.,Jiaozuo Henan 454000,China)

机构地区：[1]焦作千业水泥有限责任公司,河南焦作454000

出　　处：《水泥技术》2025年第2期33-37,共5页Cement Technology

摘　　要：以5 000t/d水泥生产线“CLF170-100辊压机+ϕ4.2m×12.5m球磨机”粉磨系统为研究对象,分析了球磨机研磨体级配与入磨物料粒径的关系,以及入磨物料粒径过宽的问题。通过改造辊压机侧挡板结构、在V型选粉机上部下料溜子内增加两道打散装置、在辊压机系统收尘器卸料器下方增加拉链机,优化预粉磨系统收尘器回灰细度,有效解决了球磨机过粉磨问题。改造后,球磨机运行稳定,成品水泥质量显著提升,台时产量增加10t/h,综合电耗下降1k W·h/t,每月可节约电费约3.6万元,社会效益和经济效益显著。Taking the grinding system of "CLF170-100 roller press + ϕ4.2m×12.5m ball mill" in the5 000t/d cement production line as the research object.The relationship between the gradation of the grinding media in the ball mill and the particle size of the material entering the mill was analyzed,as well as the problem of the excessively wide particle size of the material entering the mill.By transforming the structure of the side baffle of the roller press,adding two dispersing devices in the feeding chute above the V-type separator,and adding a zipper conveyor below the discharger of the dust collector in the roller press system,and optimizing the fineness of the returned ash of the dust collector in the pre-grinding system,the over-grinding of the ball mill has been effectively solved.After the transformation,the ball mill operates stably,the quality of the finished cement is significantly improved,the hourly output is increased by 10t/h,the comprehensive power consumption is reduced by 1kW·h/t,and the electricity cost can be saved by about 36 000 yuan per month,with remarkable social and economic benefits.

关 键 词：过粉磨 辊压机侧挡板 选粉机打散装置 拉链机 节能降耗 

分 类 号：TQ172.632[化学工程—水泥工业]