微晶纳米材料预防预热器结皮的应用实践  

Application Practice of Microcrystalline Nanomaterials in Preventing Preheater Crushing

作　　者：王志红 谈延成 铁晓红 范炬炜 WANG Zhihong;TAN Yancheng;TIE Xiaohong;FAN Juwei(Minhe Qilianshan Cement Co.,Ltd.,Haidong Qinghai 810899,China)

机构地区：[1]民和祁连山水泥有限公司,青海海东810899

出　　处：《水泥技术》2024年第6期50-53,共4页Cement Technology

摘　　要：某2500t/d水泥生产线窑尾预热器系统阻力高、物料成分波动大、高温区域钢纤维浇注料易烧损脱落,导致通风不良、有害成分循环富集、煤粉不完全燃烧,系统结皮堵塞严重、停窑频繁,严重影响了窑系统的稳定运行。为解决预热器系统物料结皮堵塞问题,使用抗结皮型微晶纳米材料进行了技术改造。现场应用实际表明,微晶纳米材料隔热效果好且表面平滑,使用微晶纳米材料的部位,表面温度大幅下降,有效解决了结皮堵塞问题;同时,熟料产质量提高,熟料标煤耗下降了2.5kg/t;工人劳动强度及施工安全风险大幅降低。In a 2500t/d cement production line,the preheater system has high resistance,large fluctuations in material composition,and steel fiber castables in high-temperature areas are prone to burn and fall off,resulting in poor ventilation,cyclic enrichment of harmful components,and incomplete combustion of pulverized coal.The system has serious scaling and clogging and frequent kiln shutdowns,which seriously affect the stable operation of the kiln system.To solve the problem of material scaling and clogging in the preheater system,technical transformation was carried out using anti-scaling microcrystalline nano materials.The actual field application shows that the microcrystalline nano material has good thermal insulation effect and a smooth surface.At the parts where the microcrystalline nano material is used,the surface temperature drops significantly,effectively solving the problem of scaling and clogging.At the same time,the output and quality of clinker are improved,and the standard coal consumption of clinker is reduced by 2.5 kg/t.The labor intensity of workers and the construction safety risk are greatly reduced.

关 键 词：钢纤维浇注料 结皮堵塞 微晶纳米材料 隔热性能 

分 类 号：TQ172.62[化学工程—水泥工业]