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《高炉渣钾容量的试验研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、维普资讯http://www.cqvip.com第41卷第12期钢铁Vo1.41,No.122006年12月IronandSteeIDecember2006高炉渣钾容量的试验研究王成立,吕庆,马明鑫,刘曙光,侯大华。(1.东北大学材料与冶金学院,辽宁沈阳110004;2.河北理工大学冶金与能源学院,河北唐山063009;3.广州钢铁企业集团有限公司,广东广州510381)摘要:为降低碱金属对高炉的危害,提高炉渣的排碱能力,采用气一渣平衡法测定了1723K时高炉渣的钾容量。依据广钢实际高炉渣成分,用纯化学试剂配制炉渣,用一定组成Kc
2、-CO-CO2一Ar混合气体提供一定的氧分压和钾分压。研究表明:试验条件下,(MgO)和w(A1:Os)一定时,钾容量随w(CaO)/w(SiOz)的增大而减小;在w(CaO)/w(SiO2)和w(A12Os)一定时,钾容量随w(MgO)的增大而增大;在w(CaO)/w(SiO2)和w(MgO)-定时,钾容量随w(A12Os)的增大而增大;当[w(CaO)+w(MgO)]/w(SiOz)和w(A1zOs)固定不变时,增加w(MgO),降低w(CaO),钾容量明显增大。广钢炉渣的合理成分为:w(CaO)/w(SiOz)保持在1.0,
3、tu(MgO)保持在12%~15,w(A12O3)不超过15。关键词:高炉渣;钾容量;气一渣平衡法;炉渣成分中圈分类号:TF534.1文献标识码:A文章编号:0449-749X(2006)12—0015—04PotassiumCapacity0fBFSlagWANGCheng-li,LUQing,MAMing-xin,LIUShu—guang,H0UDa-hua。(1.SchoolofMaterialsandMetallurgy,NortheasternUniversity,Shenyang110004,Liaoning,Chin
4、a;2.SchoolofMetallurgyandEnergyResources,HebeiPolytechnicUniversity,Tangshan063009,Hebei,China)3.GuangzhouIronandSteelGroupCo.,Ltd.,Guangzhou510381,Guangdong,China)Abstract:Inordertoreduceharmfuleffectofalkalimetalsonblastfurnaceoperation,improvethealkalicapacityofBFs
5、lag,thepotassiumcapacityofBFslagwasstudiedat1723Kusinggas-slagequilibriumtechnique。AccordingtOtherealcompositionofBFslagatGuangzhousteel,thepurechemistryreagentswereusedtOmaketheslags,theslagswereequilibratedwithamixturegasofK(g)一CO-CO2-Artoprovidethepartialpressureof
6、oxygenandpotassi—urn.Undertheexperimentalcondition,itisshownthatatfixedMgOandA12Oscontentsthepotassiumcapacityisdecreasedwithincreasingw(CaO)/w(SiO2)ratio,atconstantw(CaO)/(SiO2)ratioandAl2Oscontentthein—creaseofMgOcontentresultsintheincreaseofpotassiumcapacity,theris
7、ingA12Oscontentatfixedw(CaO)/w(SiO2)ratioandMgOcontentsignificantlyincreasesthepotassiumcapacity,andatconstant((CaO)+w(MgO))/w(SiO2)ratioandA12Oscontent,thepotassiumcapacityincreasesapparentlywithincreasingMgOcon—tentanddecreasingCa0content.Thepropercompositionofslaga
8、tGuangzhousteelis:w(CaO)/w(Si02)=1.0,MgOcontentintherangeof12%一15,A12Oscontentlessthan15.Keywords:BFslag)potassiumcapacity;g
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