基于分解炉使用替代燃料的富氧煅烧技术的工业试验  

Industrial Trials ofoxygen-Enriched combustion Technology for Alternative Fuel Utilization in Precalciner Systems

作　　者：但磊 黄赟 王连峰 韦霆 Dan Lei;Huang Yun;Wang Lianfeng;Wei Ting(Hangzhou Twinwin Energy Technology Development Co.,Ltd.,Hangzhou,Zhejiang 310022,China)

机构地区：[1]杭州特盈能源技术发展有限公司,浙江杭州310022

出　　处：《新世纪水泥导报》2025年第2期8-10,15,I0001,共5页Cement guide for new epoch

摘　　要：水泥窑使用替代燃料,系统运行存在不稳定、工况差、产质量下降等现象,且替代率上不去。为解决该问题,提出将富氧煅烧技术用于水泥窑上,以改善其燃烧替代燃料时带来的不足。在分解炉使用替代燃料的某厂烧成系统中对富氧煅烧技术进行工业试验,结果表明,使用富氧煅烧技术能显著改善水泥窑的煅烧工况和稳定性,在一次风氧含量为37%、窑头送煤风氧含量为28%富氧条件下,分解炉的替代燃料投料量可增加55%,二次风温提升65℃,三次风温提升45℃,窑产量提升110 t/d,吨熟料热耗降低约176 kJ/kg。The use of altermative fuels in cement kilns oftenleads to operational instability,poor process conditions,and reduced product quality,with low substitution rates.To addressthese issues,oxygen-enriched combustion technology was proposed to improve combustion performance.Industrial trials conducted at a plant utilizing alternative fuels in the precalcinerd cmonstrated that oxygen-cnriched combustion significantly cnhanced kiln stability and proccss conditions.Under conditions of 37%oxygen content in primary air and 28%oxygen contentin coal delivery air at the kiln head,the precaleiner's alternativefuel feeding rate increased by 55%.Secondary air temperaturer osc by 65℃,tertiary air tempcrature by 45℃,daily clinker output incrcascd by 110 t/d,and clinker heat consumption decreased by approximately 176 kJ/t.

关 键 词：水泥窑 分解炉 替代燃料 富氧煅烧 替代率 

分 类 号：TQ172.625[化学工程—水泥工业]