600MW机组省煤器输灰系统常见故障及对策

The Solutions of Common Faults of Ash Conveying System for Economizer of 600 MW Unit

由于入炉煤质的下降,省煤器输灰系统已成为锅炉重要辅机设备。由于输灰系统运行时间较短、运行人员经验不足及输送灰分的特殊性等因素,输灰系统经常出现堵塞及输灰管路磨损严重等问题,针对这些情况提出了一些对策,能大大减少输灰系统的故障次数,减少检修维护工作量及维护费用。

Due to poor quality coal into the furnace, economizer ash conveying system has become important boiler auxiliary equip- ment. Because of shorter running time and operators lacking in experience of ash conveying system, as well as the particularity of ash composition, ash conveying system is often clogged and the piping often badly wears and tears. A number of practical countermeasures for these situations are put forward to reduce the breakdowns of ash transmission system and the maintenance and costs.