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1、MetallurgicalEngineering冶金工程,2017,4(2),77-84PublishedOnlineJune2017inHans.http://www.hanspub.org/journal/menghttps://doi.org/10.12677/meng.2017.42011StudyontheMechanismofRingForminginRotaryKilnofZn-BearingDustsfromIronmakingandSteelmakingProcessLeimingYin,YunZhou,YangLiSchoolofMetallurgyEnginee
2、ring,AnhuiUniversityofTechnology,Ma'anshanAnhuithththReceived:May15,2017;accepted:Jun.10,2017;published:Jun.13,2017AbstractThestudyfocusesonringformationofrotarykilnintheprocessoftreatingZn-bearingdustsfromironmakingandsteelmakingprocess.Thechemicalcompositionandphasecompositionoftheringwereana
3、lyzedusingXRF,SEMandEDS.Theresultsshowthattheringconsistsofironandironoxides,andhaverelativehighcontentsofCaO,SiO2,andAl2O3.Theinternallayerismainlycomposedofironwustiteandcalciclase,andmainlycausedbysolidphasesintering,comple-mentedliquidphasebonding.Themiddlelayercontainsmuchliquidphase,andso
4、meironwustite,themeliliteandthespinel.Theouterlayerismainlycomposedofliquidphase,ironwustiteandcalciumsilicate.Itismainlycausedbyliquidphasebonding.Thebondphaseispredominantlyliquidmetallicironandsilicateliquidphasewithlowmeltingpoint.Basedontheaboveresults,proposingthefollowingformationmechani
5、smofring:theaccumulationofcoalashandthevari-ousoxidesinthematerialformalowmeltingpointcompoundsinthekiln,inturntheliquidandsolidparticleformhighviscosityfluidsadheretothewallofrotarykiln.Onthebasisoftheresults,themeasurestosuppresstheknotinthekilnareputforward.KeywordsRotaryKilnRing,OrePhaseCom
6、position,MechanismofKnotting,SuppressionMeasures回转窑处理钢铁厂含锌粉尘结圈机制的研究殷磊明，周云，李阳安徽工业大学冶金工程学院，安徽马鞍山收稿日期：2017年5月15日；录用日期：2017年6月10日；发布日期：2017年6月13日文章引用:殷磊明,周云,李阳.回转窑处理钢铁厂含锌粉尘结圈机制的研究[J].冶金工程,2017,4(2):77-84.https://doi.org/10.12677/meng.2017.42011殷磊明等摘要针对回转窑处理含锌粉尘过程中的结圈问题，采用XRF、SEM和EDS等测试方法对窑中结圈物的化学组成
7、和矿相组成进行分析，研究了窑中结圈物的形成机理。结果表明，结圈物的最主要的化学成分是铁和铁的氧化物，CaO、SiO2、Al2O3的含量也相对较高。内层结圈物以铁的浮氏体、钙长石为主，内层结圈以固相固结为主，液相粘结为辅。中层结圈物中液相的含量很高，铁的浮氏体和黄长石、尖晶石类物质次之。中层结圈主要是液相粘结造成的。粘结相主要是橄榄石类液相和铝酸盐类液相。外层结圈物以液相、铁的浮氏体和硅酸钙为主，主要是液相粘结，粘结相主要是金属铁液相和硅酸盐液相。导致结圈最
