立磨预粉磨在水泥粉磨系统技改中的实践

Practice of Vertical Mill Pre-grinding in Technical Reform of Cement Grinding System

某水泥粉磨站为Φ3.2 m×13 m单球磨机组成的开路粉磨系统,将其改造为Φ1700m立磨预粉磨组成的联合预粉磨开路粉磨系统,水泥粉磨系统的平均产量由40t/h提高到70 t/h,增产幅度高达75%;平均电耗由39.5 kWh/t降到了28.5 kWh/t,节电幅度为27.5%,增产节能效果显著。技改后的工艺流程精简,设备少,系统投资少,为业主以后的生产和设备维护提供了方便。

A cement grinding station reformed their open-circuit grinding system with a single 3.2 m×13 m ball mill to combined pregrinding open-circuit grinding system consisting of 1700 vertical mill pre-grinding,the average output of cement grinding system increased from 40t/h to 70t/h,the increase of output is as high as 75%,and the average power consumption decreased from 39.5 kWh/t to 28.5kWh/t,the power saving rate is 27.5%,significant effect of increasing production and saving energy.Streamlined technological process after technological transformation,Less equipment,less investment in systems,it provides convenience for the owner's future production and equipment maintenance.