宝钢技术2023年第3期梅钢烧结降低固体燃耗的生产实践张志刚(上海梅山钢铁股份有限公司炼铁厂，江苏南京210039)摘要:与对标企业相比，梅钢烧结固体燃耗一直偏高，导致烧结烟气的氮氧化物质量浓度一度高达约350mg/m3。根据烧结生产实际情况，通过稳定焦粉固定碳含量、降低粒度小于0．50mm焦粉的比例、减小焦粉水分波动、降低烧结矿FeO基数、配加高炉灰、焦炉煤气强化烧结技术等措施降低焦粉消耗量，同时通过添加热水、改进松料器、整治漏风、加强筛分管理、更换圆筒衬板、优化工艺参数等措施提高烧结利用系数。2021年上半年，梅钢烧结固体燃耗为45．35kgce/t(1kgce=29．30MJ)，较上一年同期下降1．31kgce/t;利用系数为1．22t/(m2·h)，较上一年同期提高0．07t/(m2·h)。关键词:烧结;固体燃耗;固定碳;热水;利用系数中图分类号:TF046．4文献标志码:B文章编号:1008－0716(2023)03－0054－05doi:10．3969/j．issn．1008－0716．2023．03．010ProductionpracticeofreducingsolidfuelconsumptionbysinteringinMeigangZHANGZhigang(Iron-makingPlant，ShanghaiMeishanIron＆SteelCo．，Ltd．，Nanjing210039，Jiangshu，China)Abstract:Comparedwiththebenchmarkingenterprises，thesinteringsolidfuelconsumptionofMeishanbasehasbeenhigh，resultinginthenitrogenoxideconcentrationofsinteringfluegasashighasabout350mg/m3．Accordingtotheactualsituationofsinteringproduction，bystabilizingthefixedcarboncontentofcokepowder，reducingtheproportionofcokepowderwithparticlesizelessthan0．50mm，reducingthefluctuationofcokepowdermoisture，reducingtheFeObaseofsinter，andaddingblastfurnaceashandcokeovengastostrengthensinteringtechnologyweretakentoreducetheconsumptionofcokepowder．Atthesametime，measuressuchasaddinghotwater，improvingthescarifier，controllingairleakage，strengtheningscreeningmanagement，replacingcylinderliner，optimizingprocessparameters，weretakentoimprovethesinteringutilizationcoefficient．Inthefirsthalfof2021，thesinteringsolidfuelconsumptionofMeishanbasewas45．35kgce/t，adecreaseof1．31kgce/tcomparedwiththesameperiodofthepreviousyear;theutilizationcoefficientwas1．22t/(m2·h)，whichincreasedby0．07t/(m2·h)comparedwiththesameperiodofthepreviousyear．Keywords:sint...
