锰矿洗炉对高炉渣的影响及其机理

doi:10.13228/j.boyuan.issn0449-749x.20150163

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (0 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Flushing blast furnace by manganese ore was one of the important methods to deal with the accident of blast furnace hearth accumulation. So based on the previous studies，the properties and mechanism of the slag with different[w((MnO))]were?researched，which included the viscosity，melting temperature and stability index by melting physical properties comprehensive detector，the phase composition by XRD and the microstate by Raman?spectrometer were conducted. The experiment results showed that during the process of flushing blast furnace，the best[w((MnO))]in the slag was around 1.5%，so that the viscosity of this slag was about 0.25 Pa·s at the temperature of 1 480 ℃，the melting temperature was around 1 340 ℃ and the stability was strong，these were all good enough to meet the requirements of flushing blast furnace. The mechanism of flushing blast furnace by manganese ore was that the low melting point material of manganese olivine silicate which increased the superheat degree of the liquid slag had been generated in the slag. What’s more，the concentration of the free oxygen ions that could promote the depolymerization of complex silicon oxygen tetrahedron network structure to simple silicon oxygen tetrahedron structure increased，which could significantly reduce the viscosity of slag by changing the slag microstate from complex to simple state in order to achieve the purpose of flushing blast furnace.

Received: 15 April 2015 Published: 14 April 2016

PACS:

TF537

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	DAI Bing

Cite this article:

DAI Bing. Influence and mechanism of flushing furnace by manganese ore on blast furnace slag[J]. Iron and Steel, 2016, 51(4): 18-23.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20150163 OR http://www.chinamet.cn/Jweb_gt/EN/Y2016/V51/I4/18

[1]	金觉生，陶卫忠.长期高煤比生产炉缸活跃的实践[J].宝钢技术，2002，(3):13-16.
[1]	金觉生，陶卫忠.长期高煤比生产炉缸活跃的实践[J].宝钢技术，2002，(3):13-16.
[2]	黄日清，郑海松，李大明.柳钢1#高炉活跃炉缸冶炼实践[J].2011年全国炼铁低碳技术研讨会会议论文集，2011，171-173.
[3]	靳正平.太钢2号高炉炉缸堆积原因分析及处理[J]. 山西冶金，2006,(2):57-58.
[2]	黄日清，郑海松，李大明.柳钢1#高炉活跃炉缸冶炼实践[J].2011年全国炼铁低碳技术研讨会会议论文集，2011，171-173.
[4]	刘玉臣.4#高炉炉缸堆积处理实践[J]. 南钢科技与管理，2008,(2):18-19.
[3]	靳正平.太钢2号高炉炉缸堆积原因分析及处理[J]. 山西冶金，2006,(2):57-58.
[5]	宋永刚．本钢新一号高炉炉况失常恢复[J]. 金属世界，2013,(6):29-32.
[4]	刘玉臣.4#高炉炉缸堆积处理实践[J]. 南钢科技与管理，2008,(2):18-19.
[6]	杨春生.邯钢2000m3高炉炉缸堆积的处理[J]. 炼铁，2008,27(1):35-37.
[5]	宋永刚．本钢新一号高炉炉况失常恢复[J]. 金属世界，2013,(6):29-32.
[6]	杨春生.邯钢2000m3高炉炉缸堆积的处理[J]. 炼铁，2008,27(1):35-37.
[7]	陈培敦，孙守建，赵树民.高Al2O3炉渣对高炉生产的影响[J]. 山东冶金，2005,27(1):12-13.
[7]	陈培敦，孙守建，赵树民.高Al2O3炉渣对高炉生产的影响[J]. 山东冶金，2005,27(1):12-13.
[8]	熊亚飞，舒文虎，董遵敏.武钢6号高炉炉渣高Al2O3的冶炼实践[J]. 炼铁，2009,28(1):17-21.
[8]	熊亚飞，舒文虎，董遵敏.武钢6号高炉炉渣高Al2O3的冶炼实践[J]. 炼铁，2009,28(1):17-21.
[9]	常久柱，赵勇. Al2O3对唐钢高炉炉渣性能的影响[J]. 炼铁，2004,23(3):10-13.
[9]	常久柱，赵勇. Al2O3对唐钢高炉炉渣性能的影响[J]. 炼铁，2004,23(3):10-13.
[10]	Yasushi S, Hidehiro U, Kuniyoshi I. Structural analysis of molten Na2O-NaF-SiO2 system by raman spectroscopy and molecular dynamics simulation[J]. ISIJ International,2003,43(12):1897-1903.
[10]	Yasushi S, Hidehiro U, Kuniyoshi I. Structural analysis of molten Na2O-NaF-SiO2 system by raman spectroscopy and molecular dynamics simulation[J]. ISIJ International,2003,43(12):1897-1903.
[11]	Joo H P. Structure property correlations of CaO-SiO2-MnO slag derived from raman spectroscopy[J]. ISIJ International,2012,52(9):1627-1636.
[11]	Joo H P. Structure property correlations of CaO-SiO2-MnO slag derived from raman spectroscopy[J]. ISIJ International,2012,52(9):1627-1636.