|
|
|
| Influence of MgO on mineral structure and metallurgical properties of blast furnace slag with medium titanium |
| DENG Mei-le1，HAN Xiu-li2，LIU Lei2，ZHANG Di2，LI Yun-gang1 |
（1. College of Meatllurgy and Energy， North China University of Science and Technology， Tangshan 063009， Hebei，China
2. College of Mining Engineering， North China University of Science and Technology， Tangshan 063009，Hebei， China） |
|
|
|
|
Abstract The mineral structure of blast furnace slag containing medium titanium with different mass percent of MgO (7%-16%) was studied by means of polarization microscope.The results show that the texture of the slag was porphyritic. the mineral compositions are mainly the rich titanium diopside and melilite，followed by spinel，perovskite，titanaugite，and finally a little of metallic iron，titanium nitride，titanium carbide and their solid solution. As the mass percent of MgO increased，the content of the perovskite and the rich titanium diopside reduced first and then increased，the contents of the titanaugite increased gradually and the contents of the melilite increased first and then decreased. When the mass percent of MgO reached 14%，The first phase of the high-melting spinel appeared，which resulted in higher voscosity and melting temperature of blast furnace slag，and the liquidity of blast furnace slag also became worse. The above results have a vital guiding significance on improving the liquidity of blast furnace slag with medium titanium.
|
|
Received: 09 June 2015
Published: 14 April 2016
|
|
|
|
| [1] |
刘丽娜，韩秀丽，李志民，刘磊.碱度对中钛型高炉渣矿相结构的影响[J].钢铁研究学报, 2014, 26(8):25-28
|
| [1] |
刘丽娜，韩秀丽，李志民，刘磊.碱度对中钛型高炉渣矿相结构的影响[J].钢铁研究学报, 2014, 26(8):25-28
|
| [2] |
穆红旺，张淑会，吕庆.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(6):18-21
|
| [2] |
穆红旺，张淑会，吕庆.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(6):18-21
|
| [3] |
张淑会，穆红旺，孙艳芹，等.高铝中钛高炉渣脱硫的动力学机制[J].钢铁, 2012, 47(8):13-16
|
| [3] |
张淑会，穆红旺，孙艳芹，等.高铝中钛高炉渣脱硫的动力学机制[J].钢铁, 2012, 47(8):13-16
|
| [4] |
张振峰，吕庆，李福民.高钒钛炉渣熔化性能的实验研究[J].东北大学学报, 2007, 28(10):1414-1416
|
| [4] |
张振峰，吕庆，李福民.高钒钛炉渣熔化性能的实验研究[J].东北大学学报, 2007, 28(10):1414-1416
|
| [5] |
张玉柱，耿明山，项利，等.含量和碱度对高炉渣的黏度的影响[J].材料与冶金学报, 2005, 4(4):253-255
|
| [5] |
张玉柱，耿明山，项利，等.含量和碱度对高炉渣的黏度的影响[J].材料与冶金学报, 2005, 4(4):253-255
|
| [6] |
Fengman SHEN，Xin JIANG，Gangsheng WU.Proper MgO addition in blast furnace operation[J].ISIJ International, 2006, 46(1):65-69
|
| [6] |
Fengman SHEN，Xin JIANG，Gangsheng WU.Proper MgO addition in blast furnace operation[J].ISIJ International, 2006, 46(1):65-69
|
| [7] |
何环宇，王庆祥，曾小宁.含量对高炉炉渣粘度的影响[J].钢铁冶金学报, 2006, 18(6):11-13
|
| [7] |
何环宇，王庆祥，曾小宁.含量对高炉炉渣粘度的影响[J].钢铁冶金学报, 2006, 18(6):11-13
|
| [8] |
刘丽娜，韩秀丽，李志民，等.中钛型高炉渣矿相结构研究[J].钢铁钒钛, 2013, 34(6):50-53
|
| [8] |
刘丽娜，韩秀丽，李志民，等.中钛型高炉渣矿相结构研究[J].钢铁钒钛, 2013, 34(6):50-53
|
| [9] |
任允芙。钢铁冶金岩相矿相学[M]。北京：冶金工业出版社，1982:218-220。(REN Yunfu．Petrography in steel metallurgy[M].Beijing:Metallurgical Industry Press, 1982:218-220.)
|
| [9] |
任允芙。钢铁冶金岩相矿相学[M]。北京：冶金工业出版社，1982:218-220。(REN Yunfu．Petrography in steel metallurgy[M].Beijing:Metallurgical Industry Press, 1982:218-220.)
|
| [10] |
徐恒旭，王海峰，唐道文, 等。MgO含量对中钛高炉渣粘度及熔化性温度影响研究[J]。现代机械，2011, 4:67-69。（XU Hengxu, WANG Haifeng, TANG Daowen, et al.Influence of MgO on the voscosity and the melting temperature blast furnace slag with medium titanium [J].Modem Machinery, 2011, 4(3):67-69.）
|
| [10] |
徐恒旭，王海峰，唐道文, 等。MgO含量对中钛高炉渣粘度及熔化性温度影响研究[J]。现代机械，2011, 4:67-69。（XU Hengxu, WANG Haifeng, TANG Daowen, et al.Influence of MgO on the voscosity and the melting temperature blast furnace slag with medium titanium [J].Modem Machinery, 2011, 4(3):67-69.）
|
| [1] |
DU Liang, HAN Xiu-li, ZHANG Quan-sheng, ZHOU Xiang, YANG Hong-da, WANG Ying. Quantitative relation between mineralogical structure and metallurgical properties of sinter of import iron ore[J]. Iron and Steel, 2020, 55(6): 38-45. |
| [2] |
HU Chang-qing,WANG Xiao-lei,SHI Xue-feng,WANG Zhi-xing,HAN Wei-gang. Effect of alkalinity and MgO content on mineral composition and microstructure of FeOx-SiO2-CaO-MgO-Al2O3 system[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(2): 103-110. |
| [3] |
NIU Lele,LIU Zhengjian,ZHANG Jianliang,ZHANG Zongwang, WANG Yaozu,DU Chengbo. Effect of mineral composition of iron ore on metallurgical properties of sinter[J]. Iron and Steel, 2019, 54(9): 27-32. |
| [4] |
LU Yanan,WU Shengli,WANG Laixin,KOU Mingyin. Analysis of chemical compositions of slag affecting #br#
desulphurization in hot metal of COREX process[J]. Iron and Steel, 2019, 54(9): 33-38. |
| [5] |
LIU Zhe,WANG Yi-ci,ZHAO Feng-guang,LUO Guo-ping,ZHAO Bin. Influence of binary basicity on physical properties of blast furnace slag of Baogang Group[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(8): 696-701. |
| [6] |
YANG Nan,GUO Xing-min. Effect of SiO2 on composition and microstructure of crystal products of CaOFe2O3 melt[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(8): 712-717. |
|
|
|
|
2016, Vol. 51 
