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| Influence of basicity and[w(SiO2)]on sinter mineral quality |
| CHEN Zi-luo1，ZHANG Jian-liang1，ZHANG Ya-peng1，YAN Zhi-wu1，WANG Dong2,3，GAO Bin1 |
（1. School of Metallurgical and Ecological Engineering， University of Science and Technology Beijing， Beijing 100083， China
2. Ironmaking Engineering Operation Department， Qingdao Special Steel Co.， Ltd.， Qingdao 266043， Shandong， China
3. School of? Mechanical， Qingdao Technological University， Qingdao 266033， Shandong， China） |
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Abstract The suitable[w(SiO2)]and basicity of sinter to guide the production of sinter with good technical and economic indexes was studied. Firstly， the analysis of basic sintering properties iron ore powder used in Qingdao Special Steel Co.， Ltd. was analyzed. Furthermore， on the basis of practical production， sinter pot tests were conducted by varying the binary basicity and the content of SiO2 in sinter to study the effects of the two factors on the technical and economic indexes of sintering. The results showed that the optimal parameters were the binary basicity of 1.9 and[w(SiO2)]of 5.4%. In the microstructure of sinter， it was found by scanning electron microscope that the higher content of SiO2， the larger liquid phase and dissolution textures and the more homogeneous chemical composition. However， when[w(SiO2)]was higher than 5.7%， the quality of sintering became degraded because of the over-developed of silicates. The increase of binary basicity is conducive to the development of calcium ferrite and the increase of liquid phase amount， thus increasing the reducibility of sinter， improving the quality of sinter. But the increase in glass phase would happen when the binary basicity reached 2.0.
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Received: 14 April 2016
Published: 09 December 2016
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| [1] |
R.Budzik, A.Pirikow. Sintering of ore mixes containing iron concentrates of a low SiO2 concentration of below 1.0%[J]. Metalurgija, 2007,46(4): 301-303.
|
| [1] |
R.Budzik, A.Pirikow. Sintering of ore mixes containing iron concentrates of a low SiO2 concentration of below 1.0%[J]. Metalurgija, 2007,46(4): 301-303.
|
| [2] |
刘丽娜,韩秀丽.影响烧结矿质量因素的综述[J].河北理工学院学报,2006,5,28(2):19-22.
|
| [2] |
刘丽娜,韩秀丽.影响烧结矿质量因素的综述[J].河北理工学院学报,2006,5,28(2):19-22.
|
| [3] |
杨小建,孙志成,王东,等.青钢降低高炉槽下烧结返矿率生产实践[J].山东冶金,2014,6,36(3):48-50.
|
| [3] |
杨小建,孙志成,王东,等.青钢降低高炉槽下烧结返矿率生产实践[J].山东冶金,2014,6,36(3):48-50.
|
| [4] |
高艳甲.SiO2含量对烧结矿强度的影响机理研究[D].唐山:河北联合大学硕士论文,2012.
|
| [4] |
高艳甲.SiO2含量对烧结矿强度的影响机理研究[D].唐山:河北联合大学硕士论文,2012.
|
| [5] |
张玉柱,冯向鹏,李振国,等.提高低硅烧结矿强度的研究及在生产上的应用[J].钢铁,2004,8,39(8):38-42.
|
| [5] |
张玉柱,冯向鹏,李振国,等.提高低硅烧结矿强度的研究及在生产上的应用[J].钢铁,2004,8,39(8):38-42.
|
| [6] |
Hsieh L H. Effect of raw material composition on the sintering properties[J]. ISIJ International, 2005, 45(4):551-559.
|
| [6] |
Hsieh L H. Effect of raw material composition on the sintering properties[J]. ISIJ International, 2005, 45(4):551-559.
|
| [7] |
Zhang F, Luo G P, Wang Y C, et al. Research on binding phase strength of low silicon sinter of Baotou Iron and Steel Co[C]. Proceedings of the 5th International Congress on the Science and Technology of Ironmaking, 2009:261-265.
|
| [7] |
Zhang F, Luo G P, Wang Y C, et al. Research on binding phase strength of low silicon sinter of Baotou Iron and Steel Co[C]. Proceedings of the 5th International Congress on the Science and Technology of Ironmaking, 2009:261-265.
|
| [8] |
冯向鹏,张玉柱,李振国,等.低硅条件下碱度对烧结矿强度的影响[J].烧结球团,2004,3,29(2):9-11.
|
| [8] |
冯向鹏,张玉柱,李振国,等.低硅条件下碱度对烧结矿强度的影响[J].烧结球团,2004,3,29(2):9-11.
|
| [9] |
?.Saltuk B?LüKBA?I, Baran TUFAN, Turan BATAR, et al. The Influence of Raw Material Composition on the Quality of Sinter[J]. Nature and science,2013,11(9):37-47.
|
| [9] |
?.Saltuk B?LüKBA?I, Baran TUFAN, Turan BATAR, et al. The Influence of Raw Material Composition on the Quality of Sinter[J]. Nature and science,2013,11(9):37-47.
|
| [10] |
姚朝权，张建良，张亚鹏，等．基于天钢铁矿粉高温性能的烧结优化配矿[J].烧结球团，2015,4,40(2):15-19.
|
| [10] |
姚朝权，张建良，张亚鹏，等．基于天钢铁矿粉高温性能的烧结优化配矿[J].烧结球团，2015,4,40(2):15-19.
|
| [11] |
吴奇.烧结矿粘结相的微观组织结构与烧结矿质量的相关规律研究[J].河北理工学院学报,2006,5,28(2):19-22.
|
| [11] |
吴奇.烧结矿粘结相的微观组织结构与烧结矿质量的相关规律研究[J].河北理工学院学报,2006,5,28(2):19-22.
|
| [12] |
郭兴敏,朱利,李强,等.高碱度烧结矿的矿物组成与矿相结构特征[J].钢铁,2007,1,42(1):17-19.
|
| [12] |
郭兴敏,朱利,李强,等.高碱度烧结矿的矿物组成与矿相结构特征[J].钢铁,2007,1,42(1):17-19.
|
| [13] |
陈耀铭,陈锐.烧结球团矿微观结构[M],长沙:中南大学出版社,2011.
|
| [13] |
陈耀铭,陈锐.烧结球团矿微观结构[M],长沙:中南大学出版社,2011.
|
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2016, Vol. 51 
