鞍钢技术2023年第3期ANGANGTECHNOLOGY综述高炉炼铁过程中的对称观吴官印12,孙岳琦3，吴玉治3,龚向华3,胡绍磊3（1.海洋装备用金属材料及其应用国家重点实验室，辽宁鞍山114009；2.鞍钢集团钢铁研究院，辽宁鞍山114009；3.鞍钢股份有限公司鲮鱼圈钢铁分公司，辽宁营口115007)摘要：高炉设备内在的对称属性以及炉内炉料层状下降的顺行需求决定了高炉煤气流在圆周方向上必须要对称分布，操作上要讲究参数对称和能力对称。高炉生产过程中的主要问题是高炉内在要求的要素对称性与实际工业生产过程中非对称现象之间的矛盾，高炉炼铁过程中普遍存在非对称现象,对称是相对的，非对称是绝对的；高炉日常操作过程中对炉况的调剂其实质内容就是对高炉对称关系的调节，以促使高炉内各要素保持最大程度的对称状态。高炉顺行状态越好，表明高炉内在各要素的对称性保持越好，掌握高炉对称性的调节对维护高炉长期顺行十分有利。关键词：高炉；对称性质；中心死料堆；风口回旋区；风量中图分类号：TF5D01:10.3969/j.issn.1006-4613.2023.03.002SymmetricalRelationduringIronmakingbyBlastFurnaceWUGuanyin'-2,SUNYueqi?,WUYuzhi',GONGXianghua',HUShaolei?(1.StateKeyLaboratoryofMetalMaterialforMarineEquipmentandApplication,Anshan114009,Liaoning,China;2.AnsteelIron&SteelResearchInstitutes,Anshan114009,Liaoning,China;3.BayuquanBranchofAngangSteelCo.,Ltd.,Yingkou115007,Liaoning,China)Abstract:Theinherentsymmetryattributeoftheblastfurnace(BF)equipmentandthesmoothoperatingaskedbythelayeredfallingoffurnaceburdenwasdependentonthattheBFgasflowmustbesymmetricallydistributedaroundthecircumferentialdirection,andsotheoperationofBFmustpayattentiontotheparametersymmetryandthecapacitysymmetry.ThemainproblemintheprocessofBFproductionwasthecontradictionbetweentheessentialsymmetryrequiredinherentlybyBFandtheasymmetryphenomenonintheactualindustrialproductionprocess.AstheasymmetryiscommonduringironmakingbyBFironmaking,andsymmetryisrelativewhiletheasymmetryisabsolute.Forthatreason,theessenceofadjustingthefurnaceconditioninthedailyoperationofBFwasjustadjustingthesymmetricalrelationofBFinorderthatkeepingalltheessentialsintheBFinthemostsymmetricalstate.ThebetterthesmoothoperatingstateoftheBFw...
