辊压机生料终粉磨系统的优化与调试

Optimization and Commissioning of the Roller Press Raw Material Finish Grinding System

介绍了某5 000t/d水泥熟料生产线由立磨系统改为辊压机生料终粉磨系统后的系统配置及运行情况。受物料水分大、窑尾废气温度低、稳流仓结皮严重、选粉机分选效率低等不利因素影响,辊压机生料终粉磨系统在投产初期,产量及电耗均与设计目标有所偏离。通过采取加强保温处理、加装收尘管路、改进下料溜子、合理选择辊压机控制方式、增加旁路热风、提高入V型选粉机热风温度、增加喂料装置下料口宽度、提高物料流动性等优化改进措施,生料终粉磨系统平均台时产量较原立磨系统提高了100~120t/h,电耗降低了4~5kW·h/t,实现了节能降耗目标。

This paper introduces the system configuration and operational status of a 5000 t/d cement clinker production line that was converted from a vertical mill system to a roller press raw material finish grinding system.Due to adverse factors such as high material moisture content,low preheater exhaust gas temperature,severe caking in the stable flow bin,and low separation efficiency of the powder separator,the roller press raw material finish grinding system deviated from the design targets in terms of output and power consumption during the initial production phase.By implementing optimization measures such as enhancing insulation treatment,installing dust collection pipelines,improving the feeding chute,reasonably selecting the roller press control mode,adding bypass hot air,increasing the hot air temperature entering the V-type powder separator,widening the feed device discharge port,and improving material fluidity the average hourly output of the raw material finish grinding system increased by 100~120t/h compared to the original vertical mill system,and power consumption decreased by 4~5kW·h/t,achieving the goal of energy saving and consumption reduction.