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1、第２９卷第１０期钢铁研究学报Vol．２９,No．１０,p８０７Ｇ８１５２０１７年１０月JournalofIronandSteelResearchOctober２０１７DOI:１０．１３２２８/j．boyuani．ssn１００１Ｇ０９６３．２０１６０３２４大型转炉高供氧强度吹炼的水模实验杨文远１,冯超２,王明林１,吕英华２,胡砚斌１,彭小艳３(１．钢铁研究总院工艺所,北京１０００８１;２．中钢集团鞍山热能研究院有限公司设备研制厂,辽宁鞍山１１４０４４;３．新冶高科技集团有限公司热工装备与材料事业部,北京１０００８１)摘要:为使大型转炉的生产
2、率达到国际先进水平,在３００~３５０t大型氧气转炉上实现４?０~５?０m３/(t?min)的高供氧强度吹炼,设计了新的大流量氧枪喷头,并在１∶１０的有机玻璃模型上进行氧射流与熔池作用的水模实验.水模实验大流量氧枪喷头的主要参数为:喷头孔数６~８个,采用双角度交错布置,喷孔倾角１０°~１７°,喷孔出口马赫数２?０~２?２.同时测定了枪位高度为１?８~２?６m时的熔池喷溅率、混匀时间和穿透深度.研究结果表明,大流量新喷头的喷溅量和射流对熔池的穿透深度都在转炉正常吹炼范围内,熔池混匀时间平均缩短６s,泡沫渣可将喷溅率降低５０％.大流量新喷头良好
3、的吹炼性能为大型转炉高供氧强度吹炼的氧枪喷头设计提供了可靠的数据.关键词:顶吹转炉;供氧强度;喷溅;穿透深度;泡沫渣文献标志码:A文章编号:１００１Ｇ０９６３(２０１７)１０Ｇ０８０７Ｇ０９Watermodelexperimentofhighsupplyingoxygenblowinginlargeconverter１,FENGChao２,WANGMingＧlin１,LÜYingＧhua２,YANGWenＧyuan１,PENGXiaoＧyan３HUYanＧbin(１．MetalllurgicalTechnologyInstitute,Ce
4、ntralIronandSteelResearchInstitute,Beijing１０００８１,China;２．EquipmentFactory,SinosteelAnshanResearchInstituteofThermoＧenergyCo．,Ltd．,Anshan１１４０４４,Liaoning,China;３．ThermalEquipmentandMaterialDepartment,NewMetallurgyHiＧTechGroupCo．,Ltd．,Beijing１０００８１,China)Abstract:Inordertoma
5、ketheproductivityoflargeconverterinourcountryreachtotheinternationaladvancedlevel,anewoxygenlancenozzlewasdesignedtocarryouthighoxygensupplyintensityblowingintherangeof３/(t?min)for３００－３５０tlargeoxygenconverter,andthewatermodelofoxygenjetandmolten４?０－５?０mbathwerecarriedouti
6、nthescaleof１∶１０withactualdimension．Theparametersofthenozzlesareasfollow:６－８holes,twokindsofanglesstaggeredarrangement,inclinationangleof１０°－１７°andMachnumberof２?０－２?２．Splashrate,mixingtimeandpenetrationdepthweremeasuredwhenthelanceheightwas１?８－２?６m．Theresultsindicatethatth
7、esplashrateofthenewlargeflowoxygenlancenozzleandpenetrationdepthofoxygenjetontheliquidbathareinthenormalblowingrangeoflargeconverter．Theaveragemixingtimeofliquidbathisshortenby６s,aswellassplashratecanbereducedby５０％withfoamingslaginwatermodeltest．Asthenewlargeflowoxygenlan
8、cenozzlehastheexcellentblowingperformanceinwatermodeltest,theexploratorytestproＧvidesreliabledat
