B_2O_3对含钛低镁渣系流动性的影响及其机理研究
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摘要
基于京唐现场渣中主要氧化物成分,采用内柱体旋转法对CaO-SiO2-15.2%Al2O3-4.8%MgO-TiO2-B_2O_3(质量分数)渣系进行黏度试验,结合Factsage软件热力学分析,探究TiO2和B_2O_3对低镁渣系黏度、熔化性温度和活化能的影响及影响机理。研究结果表明:质量分数为0~4.0%的TiO2使低镁渣系黏度、熔化性温度和活化能均降低;质量分数为0~2.0%的B_2O_3能降低含钛低镁渣系黏度和熔化性温度;含钛低镁渣中B_2O_3质量分数为1.0%左右较为合理。
Based on the main oxide composition of Jingtang blast furnace slag, viscosity of Ca O-SiO_2-15.2%Al2 O3-4.8%Mg O-TiO_2-B_2O_3(mass fraction) slag was measured by rotating cylinder method. Combined with thermodynamic analysis of factsage software, the effects of TiO_2 and B_2O_3 on viscosity, break point temperature, activation energy of low Mg O slag were investigated. The results show that viscosity, break point temperature and activation energy of low Mg O slag remarkably decrease with the addition of 0-4.0% TiO_2. The viscosity and break point temperature of low Mg O slag containing titanium also decrease with the addition of 0-2.0% B_2O_3. The optimal mass fraction of B_2O_3 in low Mg O slag containing titanium is about 1.0%.
Based on the main oxide composition of Jingtang blast furnace slag, viscosity of Ca O-SiO_2-15.2%Al2 O3-4.8%Mg O-TiO_2-B_2O_3(mass fraction) slag was measured by rotating cylinder method. Combined with thermodynamic analysis of factsage software, the effects of TiO_2 and B_2O_3 on viscosity, break point temperature, activation energy of low Mg O slag were investigated. The results show that viscosity, break point temperature and activation energy of low Mg O slag remarkably decrease with the addition of 0-4.0% TiO_2. The viscosity and break point temperature of low Mg O slag containing titanium also decrease with the addition of 0-2.0% B_2O_3. The optimal mass fraction of B_2O_3 in low Mg O slag containing titanium is about 1.0%.
引文
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[18]HUANG Xinghuai,LIAO Junlin,ZHENG Kai,et al.Effect of B2O3 addition on viscosity of mould slag containing low silica content[J].Ironmaking&Steelmaking,2014,41(1):67-74.
[19]SUN Yongqi,ZHANG Zuotai.Structural roles of boron and silicon in the Ca O-Si O2-B2O3 glasses using FTIR,Raman and NMR spectroscopy[J].Metallurgical and Materials Transactions B,2015,46(4):1549-1554.
[2]张旭升,吕庆,刘小杰,等.高炉炉渣中钛、镁、铝最优配比[J].钢铁,2015,50(6):8-14.ZHANG Xusheng,LüQing,LIU Xiaojie,et al.Optimal proportion of Ti,Mg and Al in BF slag[J].Iron and Steel,2015,50(6):8-14.
[3]KIM J R,LEE Y S,MIN D J,et al.Influence of Mg O and Al2O3contents on viscosity of blast furnace type slags containing Fe O[J].ISIJ International,2004,44(8):1291-1297.
[4]李朋,霍吉祥,骆振勇,等.京唐球团厂自产含钛球团试验研究[J].烧结球团,2014,39(5):23-26.LI Peng,HUO Jixiang,LUO Zhenyong,et al.Experimental study on self-production of titanium-containing pellets in Jingtang pelletizing plant[J].Sinter and Pelletizing,2014,39(5):23-26.
[5]PARK H,PARK J Y,KIM G H,et al.Effect of Ti O2 on the viscosity and slag structure in blast furnace type slags[J].Steel Research International,2012,83(2):150-156.
[6]王文忠,余琨,徐金铎.含硼炉渣性能研究[J].钢铁,1980(4):57-62.WANG Wenzhong,YU Kun,XU Jinduo.Study on properties of boron containing slag[J].Journal of Iron and Steel Research,1980(4):57-62.
[7]GAO Yanhong,BIAN Lingtao,LIANG Zhongyu.Influence of B2O3 and Ti O2 on viscosity of Titanium-bearing blast furnace slag[J].Steel Research International,2014,86(4):386-390.
[8]SUN Yongqi,LIAO Junlin,ZHENG Kai,et al.Effect of B2O3 on the structure and viscous behaviour of Ti-bearing blast furnace slags[J].JOM,2014,66(10):2168-2175.
[9]LIN Yinhe,WEN Yongcai,FU Weiguo,et al.Effect and mechanism of B2O3 on apparent viscosity of slag during smelting of vanadium-titanium magnetite in the blast furnace[J].Metallurgical Research&Technology,2016,113(5):506-514.
[10]文玲,张金柱.含钛高炉渣性能的研究进展[J].钢铁研究学报,2011,23(5):1-3.WEN Ling,ZHANG Jinzhu.Research progress on properties of Ti bearing blast furnace slag[J].Journal of Iron and Steel Research,2011,23(5):1-3.
[11]王福佳,吕庆,陈树军.Ti O2/Si O2对含钒钛高炉炉料熔滴性能的影响[J].钢铁钒钛,2015,36(6):79-83.WANG Fujia,LüQing,CHEN Shujun.Research of Ti O2/Si O2influence on furnace burden’s dropping performance of vanadium-titanium magnetite[J].Iron Steel Vanadium Titanium,2015,36(6):79-83.
[12]沈龙龙,孙向伟,刘彪,等.高炉低w(Ti O2)炉渣流动性的研究[J].钢铁研究,2013,41(3):19-21.SHEN Longlong,SUN Xiangwei,LIU Biao,et al.Study on fluidity of BF slag with low w(Ti O2)[J].Journal of Iron and Steel Research,2013,41(3):19-21.
[13]张金柱,施丽丽,敖万忠.高炉高铝低钛渣的熔化性[J].钢铁研究学报,2010,22(4):16-19.ZHANG Jinzhu,SHI Lili,AO Wanzhong.Melting property of high-titanium and low-titanium BF slag[J].Journal of Iron and Steel Research,2010,22(4):16-19.
[14]SUN Yongqi,LIAO Junlin,ZHENG Kai,et al.Effect of P2O5addition on the viscosity and structure of Titanium bearing blast furnace slags[J].ISIJ International,2014,54(7):1491-1497.
[15]YAN Zhiming,LüXuewei,ZHANG Jie,et al.The effect of Ti O2 on the liquidus zone and apparent viscosity of Si O2-Ca O-8wt.%Mg O-14wt.%Al2O3 system[J].ISIJ International,2017,57(1):31-36.
[16]张士举,胥有利,谢金洋,等.高炉渣主要组分对其熔化特性及黏度的影响[J].有色金属工程,2016,6(6):50-54.ZHANG Shiju,XU Youli,XIE Jinyang,et al.Effect of blast furnace slag main components on its melting characteristics and viscosity properties[J].Nonferrous Metals Engineering,2016,6(6):50-54.
[17]袁骧,张建良,毛瑞,等.高炉低钛渣粘度和熔化性能[J].过程工程学报,2014,14(4):664-670.YUAN Xiang,ZHANG Jianliang,MAO Rui,et al.Viscosity and melting behavior of low titanium-containing blast furnace slag[J].Chinese Journal of Process Engineering,2014,14(4):664-670.
[18]HUANG Xinghuai,LIAO Junlin,ZHENG Kai,et al.Effect of B2O3 addition on viscosity of mould slag containing low silica content[J].Ironmaking&Steelmaking,2014,41(1):67-74.
[19]SUN Yongqi,ZHANG Zuotai.Structural roles of boron and silicon in the Ca O-Si O2-B2O3 glasses using FTIR,Raman and NMR spectroscopy[J].Metallurgical and Materials Transactions B,2015,46(4):1549-1554.