陶瓷研磨体在Φ4.2 m×13 m球磨机上的应用

Application of ceramic grinding body in Φ4.2 m×13 m ball Mill

陶瓷研磨体在水泥球磨机研磨仓中应用的节能效果逐步被业内认可。由于陶瓷研磨体与金属研磨体属性不同,磨内物料流速和风速会发生相应变化,更换使用过程要循序渐进,分阶段逐步进行,应根据磨机系统状况和水泥质量变化情况对级配与球磨机运行参数及时调整。与使用钢球时相比,平均台时产量降低10 t/h;单位水泥电耗降低3~4 kWh/t;出磨水泥温度平均降低20℃;磨机轴瓦温度下降6~8℃;水泥中<3μm颗粒含量有所降低,3~32μm颗粒含量有所增加;出磨水泥成品抗压强度基本无变化,水泥流动度变化不大;无陶瓷研磨体破碎情况,磨耗为6.8 g/t水泥,之前为25 g/t水泥。另外,水泥成品结库情况得到改善;该系统生产的水泥单独出库,质量稳定;设备安全运转率增加,设备维护费用降低。

The energy-saving effect of the ceramic grinding body in the grinding cabin of cement ball mill is gradually recognized by the industry. Due to the different properties of the ceramic abrasive body and the metal abrasive body, the material velocity and wind speed in the mill will change correspondingly. The replacement process should be gradually conducted in stages, and grinding body gradation and operating parameters of ball mill should be adjusted in time according to the condition of the mill system and the change of cement quality. Compared with the use of steel balls, the average output of the unit cement decreases by 10 t/h; the consumption of the unit decreases 3-4 kWh/t; the average temperature of the grinding cement decreases by 20 ℃; the temperature of mill bush decreases 6~8℃; the content of <3 μm particles in cement decreases and the content of 3~32μm particles increases. The compressive strength of the cement products is basically unchanged, and the fluidity of cement is not changed. Without ceramic grinding body, the wear is 6.8 g/t lower than 25 g/t before. In addition, the consolidation situation in the warehouse of the cement production has been improved; the quality of the cement produced with the system is stable for its separated delivery out of the reservoir; the safety operation rate increases, which reduces tlic equipment maintenance cost.