水泥熟料烧成系统能效提升技术的研究及应用  

Research and Application on Improving Energy Efficiency of Cement Clinker Pyro-system

作　　者：马娇媚[1] 赵亮[1] 张建国 王科学 MA Jiaomei;ZHAO Liang;ZHANG Jianguo;WANG Kexue(Tianjin Cement Industry Design&Research Institute Co.,Ltd.,Tianjin 300400,China;CUCC(Xuzhou)Co.,Ltd.,Xuzhou Jiangsu 221135,China)

机构地区：[1]天津水泥工业设计研究院有限公司,天津300400 [2]徐州中联水泥有限公司,江苏徐州221135

出　　处：《水泥技术》2023年第2期20-26,共7页Cement Technology

基　　金：国家重点研发计划《火电、钢铁、建材等典型行业率先碳达峰的技术路线图研究》,课题编号2021YFF0601001。

摘　　要：计算分析了现有水泥生产线热平衡支出项中影响热耗的主要因素,针对水泥行业能耗双控目标,提出了能效提升解决方案。现有生产线技改项目应用显示,烧成系统热效率再提升5%~9%,熟料标准煤耗降低10kg/t.cl以上,达到并优于GB 16780-2021标准中熟料单位产品综合煤耗指标1级能效;能效提升的同时,通过应用分解炉自脱硝源头减排技术,分解炉出口CO浓度不超过500ppm,喷氨前NOX本底浓度<350mg/Nm^(3),氨水用量3kg/t.cl的条件下,NOX排放浓度<50mg/Nm^(3),满足国家环保标准要求。Based on the requirements of double control of energy consumption in the cement industry under the background of double carbon,the main factors affecting heat consumption in the thermal balance expenditure of the existing production line were analyzed through the calculation of thermal efficiency.It put forward the energy efficiency improvement solution,which is typically applied in the technical transformation of the existing production line,and the thermal efficiency of the sintering system is further increased by 5%~9%.Fuel consumption per unit product of clinker can be reduced by more than 10kg/t.cl,reaching and better than level 1 of GB 16780-2021.It improves energy efficiency while taking into account the environmental protection function of the pyro-system,through the application of calciner self-denitrification technology to reduce source emission.The CO content out of calciner would not exceed 500ppm and the original NOx before ammonia below 350mg/Nm^(3),the ammonia water consumption below 3kg/t.cl under the condition of NOx emission below 50mg/Nm^(3)of environmental protection requirements.These measures and technology would help the plants to meet the rapid development of enterprises.

关 键 词：能效提升 超低排放 节能降碳 五级改六级 

分 类 号：TQ172.622.29[化学工程—水泥工业]