4500t/d熟料生产线超低排放技改措施及效果  

Measures and Effects of Ultra-low Emission Technical Transformation of a 4500t/d Clinker Production Line

作　　者：张少明 刘宏保 张耀智 洪宝 ZHANG Shaoming;LIU Hongbao;ZHANG Yaozhi;HONG Bao(Hefei Fengda Cement Technology Co.,Ltd.,Hefei Anhui 230601,China;Chunjiang Cement Co.,Ltd.,Weihui Henan 453100,China)

机构地区：[1]合肥丰达水泥科技有限公司,安徽合肥230601 [2]卫辉市春江水泥有限公司,河南卫辉453100

出　　处：《水泥技术》2021年第1期50-56,共7页Cement Technology

摘　　要：介绍了MFC分解炉+五级单系列旋风预热器系统的改造方案,该方案采用了自还原脱硝技术,调整了三次风管接入位置和C4旋风筒下料管位置,使用了重锤压紧式窑尾密封,采用了无外风节能型强旋流入炉燃烧装置。技术改造后,系统阻力降低,年均电耗下降1.62kW·h/t熟料,标煤耗下降3.15kg/t熟料,满足了氮氧化物排放值<100mg/m^3(标)的要求。In this paper,the transformational scheme of MFC decomposition furnace&5-stage single series cyclone preheater system is introduced.The scheme adopts self-reducing denitrification technology and adjusts the access position of 3rd-air pipes and the feeding position of C4 cyclone tube.In addition,this scheme also adopts the heavy hammer compression kiln tail seal,and the energy-saving strong swirly flow into the furnace combustion device without external air.After the transformation,due to the lower resistance of system,the average power consumption is reduced by 1.62kW·h/t.cl,the standard-coal consumption reduced by 3.15kg/t.cl,and the NOx emission value controlled less than 100mg/Nm^3,which meets the emission requirement.

关 键 词：超低排放 系统降阻 分解炉扩容降速 分级燃烧脱硝降氮 

分 类 号：TQ172.622.29[化学工程—水泥工业]