TiO_2对炉渣黏度的影响
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摘要
整理了TiO_2含量对不同碱度、MgO含量以及Al_2O_3含量的含钛炉渣黏度的影响.低钛渣的黏度受CaO,MgO,Al_2O_3等的影响强烈;当二元碱度为1,Al_2O_3质量分数为7%,MgO质量分数为2%时,随着TiO_2含量增加,黏度下降. TiO_2大于10%小于15%时,炉渣的黏度在1 500℃左右均在0. 6 Pa·s以下,流动性较好.在碱度和MgO含量一定时,随着TiO_2含量增加黏度增大,当TiO_2含量增大到一定值时其对炉渣黏度影响变弱.当TiO_2含量大于20%碱度在0. 5左右时,随着TiO_2含量升高炉渣黏度降低;Al_2O_3和碱度对含TiO_2炉渣黏度的影响也较为显著;总体来说Al_2O_3含量越高,炉渣黏度越高;碱度对TiO_2含量不同的高炉渣(低钛渣、中钛渣、高钛渣)的黏度的影响都是随着碱度提高,炉渣黏度先降低后升高.
The effect of TiO_2 content on the viscosity of titanium-containing slag with different basicity,MgO content and Al_2O_3 content was discussed. The viscosity of low-titanium slag was strongly influenced by Ca O,MgO,Al_2O_3,and etc.. When the binary basicity was 1 and the mass fraction of Al_2O_3,MgO was 7%,2%,respectively,the viscosity decreased with the increase of TiO_2 content. When the mass fraction of TiO_2 was more than 10% and less than 15%,the viscosity of the slag was below 0. 6 Pa·s at about 1 500 ℃,and the fluidity was good. When the basicity and MgO content were constant,the viscosity increased with the increase of TiO_2 content.When the content of TiO_2 increased to a certain value,its influence on the slag viscosity became weak. When the mass fraction of TiO_2 was more than 20% and the basicity was about 0. 5,the viscosity of slag decreased with the increase of TiO_2 content. The influence of Al_2O_3 and basicity on the viscosity of TiO_2 containing slag was also significant. Generally,the higher the content of Al_2O_3 is,the higher the slag viscosity is. The effect of basicity on the viscosity of blast furnace slag( low titanium slag,medium titanium slag,high titanium slag) with different TiO_2 content was increased with basicity,and the viscosity of slag was first decreased and then increased.
The effect of TiO_2 content on the viscosity of titanium-containing slag with different basicity,MgO content and Al_2O_3 content was discussed. The viscosity of low-titanium slag was strongly influenced by Ca O,MgO,Al_2O_3,and etc.. When the binary basicity was 1 and the mass fraction of Al_2O_3,MgO was 7%,2%,respectively,the viscosity decreased with the increase of TiO_2 content. When the mass fraction of TiO_2 was more than 10% and less than 15%,the viscosity of the slag was below 0. 6 Pa·s at about 1 500 ℃,and the fluidity was good. When the basicity and MgO content were constant,the viscosity increased with the increase of TiO_2 content.When the content of TiO_2 increased to a certain value,its influence on the slag viscosity became weak. When the mass fraction of TiO_2 was more than 20% and the basicity was about 0. 5,the viscosity of slag decreased with the increase of TiO_2 content. The influence of Al_2O_3 and basicity on the viscosity of TiO_2 containing slag was also significant. Generally,the higher the content of Al_2O_3 is,the higher the slag viscosity is. The effect of basicity on the viscosity of blast furnace slag( low titanium slag,medium titanium slag,high titanium slag) with different TiO_2 content was increased with basicity,and the viscosity of slag was first decreased and then increased.
引文
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[24]付贵勤,鞠洪星,薛逊,等.酸性钒钛渣粘度及熔化性温度[J].过程工程学报,2008,8(s1):276-279.
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[27]郭兴忠,李劲明,文光远,等.中钛型高炉渣的冶金性能[J].钢铁钒钛,2000,21(1):1-6.
[2] Kondratiev A,Jak E,Hayes P C. Predicting slag viscosities in metallurgical systems[J]. JOM,2002,54(11):41-45.
[3] Shankar A,G9rnerup M,Lahiri A K,et al. Estimation of viscosity for blast furnace type slags[J]. Ironmaking&Steelmaking,2013,34(06):477-481.
[4] Gladkii M M. Regulating the operation of the blast-furnace by pressure drops[J]. Metallurgist,1961,5(08):355-357.
[5] Sunahara K,Nakano K,Hoshi M,et al. Effect of High Al2O3Slag on the Blast Furnace Operations[J]. Isij International,2008,48(04):420-429.
[6] Shen L L,Sun X W,Liu B,et al. Study on fluidity of BF slag with low w(Ti O_2)[J]. Research on Iron&Steel,2013,41(03):19-21.
[7]白晨光.含钛高炉渣的若干物理化学问题研究[D].重庆:重庆大学,2003.
[8]田野,陈树军,吕庆,等.碱金属和Ti O2对高炉炉渣流动性的影响[J].钢铁钒钛,2016,37(05):91-95.
[9] Shankar A,G9rnerup M,Lahiri A K,et al. Experimental Investigation of the Viscosities in Ca O-SiO2-MgOAl2O3,and Ca O-SiO2-MgO-Al2O3-Ti O2,Slags[J]. Metallurgical&Materials Transactions B,2007,38(06):911-915.
[10]许仁泽,张建良,张贺顺,等. Ti O2对京唐高炉渣性能的影响及热力学分析[J].钢铁,2017,52(09):104-109.
[11] Wang Z,Shu Q,Chou K. Viscosity of Fluoride-Free Mold Fluxes Containing B2O3,and Ti O2[J]. Steel Research International,2013,84(08):766-776.
[12]穆红旺,张淑会,吕庆,等.中性气氛下高铝中钛型高炉渣黏度的试验研究[J].钢铁,2012,47(06):18-21.
[13]郭兴忠,文光远,张丙怀.中钛型高炉渣冶金性能的研究[J].四川冶金,2000,(03):18-22.
[14] Shimoda K,Saito K. Detailed structure elucidation of the blast furnace slag by molecular dynamics simulation[J]. Isij International,2007,47(9):1275-1279.
[15] Mysen B O. Relationships between silicate melt structure and petrologic processes[J]. Earth Science Reviews,1990,27(4):281-365.
[16]郭靖,程树森,赵宏博.基于结构理论的Si O2-Ca O-MgO-Al2O3熔渣黏度的预报模型[J].钢铁研究学报,2013,25(8):6-11.
[17]郭德勇,张杰,鲁德昌,等.碱度对Ca O-SiO2-Al2O3-MgO-TiO2渣系黏度的影响[J].钢铁,2014,49(10):13-17.
[18]董相娟,孙昊延,佘雪峰,等. Ti O2-Al2O3-Ca OSi O2低碱度高钛渣熔体黏度特性[J].工程科学学报,2013,35(10):1297-1303.
[19]杜鹤桂,等.高炉冶炼钒钛磁铁矿原理[M].北京:科学出版社,1996.
[20]曲彦平,杜鹤桂.高炉型高钛熔渣离子团结构与粘度的关系[J].金属学报,2002,38(12):1277-1280.
[21]白晨光,文光远,朱琼华,等.高钛型高炉渣表面粘度的研究[J].重庆大学学报,1995,18(3):80-85.
[22]王淑兰,钟和香,张丽君.非均相高钛渣的电导率和粘度[J].钢铁研究学报,2005,17(5):76-78.
[23]万新,裴鹤年,白晨光,等.钛氧化物还原与钛渣变稠[J].重庆大学学报,2000,23(5):36-39.
[24]付贵勤,鞠洪星,薛逊,等.酸性钒钛渣粘度及熔化性温度[J].过程工程学报,2008,8(s1):276-279.
[25]毛红霞.含钛高炉渣的流变特性及其泡沫化的研究[D].重庆:重庆大学,2006.
[26]龙防,周国凡.富Al2O3高炉炉渣粘度实验研究[J].河南冶金,2006,14(1):11-13.
[27]郭兴忠,李劲明,文光远,等.中钛型高炉渣的冶金性能[J].钢铁钒钛,2000,21(1):1-6.