BaSO4对球团矿抗压强度的影响

删除或更新信息，请邮件至freekaoyan#163.com(#换成@)

本站小编 Free考研考试/2022-01-01

巨建涛^1,2，刘文果¹，邢相栋^{1, 2*}，姚嘉斌³，焦国帅¹

1. 西安建筑科技大学冶金工程学院，陕西西安 7100552. 陕西省冶金工程技术研究中心，陕西西安 7100553. 甘肃润源环境资源科技有限公司技术中心，甘肃嘉峪关 735100

收稿日期:2018-07-10修回日期:2018-09-21出版日期:2019-06-22发布日期:2019-06-20
通讯作者:邢相栋

基金资助:国家自然科学青年基金项目

Effect of BaSO₄ on the compressive strength of pellets

Jiantao JU^1,2, Wenguo LIU¹, Xiangdong XING^1,2*, Jiabin YAO³, Guoshuai JIAO¹

1. School of Metallurgical Engineering, Xi?an University of Architecture and Technology, Xi?an, Shaanxi 710055, China2. Metallurgical Engineering Technology Research Center of Shaanxi Province, Xi?an, Shaanxi 710055, China3. Technology Center of Gansu Runyuan Environment Resources of Science and Technology, Jiayuguan, Gansu 735100, China

Received:2018-07-10Revised:2018-09-21Online:2019-06-22Published:2019-06-20

摘要/Abstract

摘要： 以磁铁精矿粉和膨润土为原料、BaSO4为添加剂生产球团，基于直接配入法的组分调控方式，结合热重实验结果，研究了BaSO4对球团矿抗压强度的影响，并采用压汞仪、矿相显微镜和扫描电子显微镜?能谱仪等分析了球团矿焙烧过程中BaSO4对球团矿抗压强度的影响机理和钡的转变行为。结果表明，随BaSO4含量增加，预热球团抗压强度变化较小，焙烧球团抗压强度先升高后逐渐降低。BaSO4添加量小于1.5wt%时，有利于焙烧球团内部磁铁矿氧化和新生赤铁矿再结晶，孔隙率略有增加，内部氧分压提高，增强了晶粒间的固结程度，球团抗压强度提高。BaSO4含量进一步增加，球团矿内部孔隙尺寸增大，降低了内部基体的整体性，使晶粒间的连晶程度减弱，球团矿抗压强度降低。

引用本文

巨建涛刘文果邢相栋姚嘉斌焦国帅. BaSO₄对球团矿抗压强度的影响[J]. 过程工程学报, 2019, 19(3): 567-574.
Jiantao JU Wenguo LIU Xiangdong XING Jiabin YAO Guoshuai JIAO. Effect of BaSO₄ on the compressive strength of pellets[J]. Chin. J. Process Eng., 2019, 19(3): 567-574.

使用本文

0
/ / 推荐
导出引用管理器 EndNote|Ris|BibTeX
链接本文:http://www.jproeng.com/CN/10.12034/j.issn.1009-606X.218242
http://www.jproeng.com/CN/Y2019/V19/I3/567

参考文献

[1]唐敬坤, 郭磊, 郭占成, 等.球团矿高温还原过程中抗压强度变化及机理[J].钢铁, 2014, 49(7):66-71 [2]Tang J k, Guo L, Guo Z C, et al.Changes of hot compressive strength of iron ore pellets during reduction process and mechanism[J].Iron and Steel, 2014, 49(7):66-71 [3]Gao Q J, Shen F M, Wei G, et al.Effects of MgO containing additive on low-temperature metallurgical properties of oxidized pellet[J].Journal of Iron and Steel Research, International, 2013, 20(7):25-28 [4]叶匡吾.努力推进我国球团矿的生产[J].烧结球团, 2007, 32(5):1-5 [5]Ye K W.Heavily push forward the pelletizing production inour country[J].Sintering & Pellets, 2007, 32(5):1-5 [6]青格勒, 王朝东, 侯恩俭, 等.低硅含镁球团矿抗压强度及冶金性能[J].钢铁研究学报, 2014, 26(4):7-12 [7]Qing G L, Wang C D, Hou E J, et al.Compressive strength and metallurgical property of low silicon magnesium pellet[J].Journal of Iron andSteel Research, 2014, 26(4):7-12 [8]Meral M, Pramanik S, Pal J.Role of MgO and Its Different Minerals on Properties of Iron Ore Pellet[J].Trans Indian Inst Met, 2016, 69(6):1141-1153 [9]朱德庆, 高子富, 潘建, 等.碱度及质量分数对球团焙烧及冶金性能的影响[J].中南大学学报自然科学版, 2013, 44(10):3963-3970 [10]Zhu D Q, Gao Z F, Pan J, et al.Influence of pellet basicity and MgO content on roasting and metallurgical properties of pellets[J].Journal of Central South University (Science and Technology), 2013, 44(10):3963-3970 [11]方觉, 龚瑞娟, 赵立树, 等.球团矿氧化焙烧及还原过程中的强度变化[J].钢铁, 2007, 42(2):11-14 [12]Fang J, Gong R J, Zhao L S, et al.Change of high temperature strength of pellets during roasting and reduction[J].Iron and Steel, 2007, 42(2):11-14 [13]潘钊彬, 郭占成, 荣哲.球团矿不同气氛下的高温抗压强度[J].北京科技大学学报, 2011, 33(10):1209-1213 [14]Pan Z B, Guo Z C, Rong Z.High temperature compressive strength of ore pellets in different atmospheres[J].Journal of University of Science and Technology Beijing, 2011, 33(10):1209-1213 [15]任允芙, 凤麟.酒钢含重晶石铁精矿在烧结过程中重晶石分解机理的研究[J].金属学报, 1986, 22(4):142-148 [16]Run Y F, Feng L.Study on Barite decomposition mechanism for iron ore concentrate containing Barite in sintering process in Jiugang[J].Acta Metallurgica Sinica, 1986, 22(4):142-148 [17]Zhang J L, Wang Z Y, Xing X D, et al.Effect of aluminum oxide on the compressive strength of pellets[J].International Journal of Minerals, Metallurgy and Materials, 2014, 21(4):339-344 [18]高强健, 魏国, 何奕波, 等.对球团矿抗压强度的影响[J].东北大学学报自然科学版, 2013, 34(1):103-106 [19]Gao Q J, Wei G, He Y B, et al.Effect of MgO on compressive strength of pellet[J].Journal of Northeastern University (Natural Science), 2013, 34(1):103-106 [20]Shen F M, Gao Q J, Xin J, et al.Effect of magnesia on the compressive strength of pellets[J].International Journal of Minerals, Metallurgy and Materials, 2014, 21(5):431-437 [21]Semberg P, Rutqvist A, Andersson C, et al.Interactions between Iron Oxides and the Additives Quartzite, Calcite and Olivine in Magnetite based Pellets [J]. ISIJ International. 2011, 51(2): 431?437.[J].ISIJ International, 2011, 51(2):431-437 [22]陈许玲, 刘树, 甘敏, 等.高钛球团焙烧行为及其强化技术[J].工程科学学报, 2016, 38(7):920-929 [23]Chen X L, Liu S, Gan M, et al.Roasting behavior and enhancing technology of high-titanium pellets[J].Chinese Journal of Engineering, 2016, 38(7):920-929 [24]张彦，青格勒，田筠清，等.不同含钛物料对球团抗压强度的影响[J].烧结球团, 2015, 40(6):28-31 [25]Zhang Y, Qing G L, Tian Y Q, et al.Study on influences of different Ti-bearing materialson compression strength of pellets[J].Sintering & Pellets, 2015, 40(6):28-31 [26]曹龙，段东平，韩洪亮.高炉瓦斯灰含碳球团粘结剂研究 [J]. 过程工程学报，2013, 13(1), 164?168.[J].过程工程学报, 2013, 11(1):164-168 [27]Cao L, Duan D P, Han H L.Study on Roasting of Carbon-containing Pellets from Blast Furnace Dust with Different Binders [J]. The Chinese Journal of Process Engineering, 2013, 13(1), 164?168.[J].The Chinese Journal of Process Engineering, 2011, 13(1):164-168 [28]陈耀明，李建.氧化球团矿中的结晶规律[J].中南大学学报自然科学版, 2007, 38(1):70-73 [29]Chen Y M, Li J.Crystal rule of Fe2O3 in oxidized pellet[J].Journal of Central South University (Science and Technology), 2007, 38(1):70-73 [30]郑红霞，汪琦，潘喜峰.磁铁矿球团氧化机理的研究[J].烧结球团, 2009, 28(5):13-16 [31]Zheng H X, Wang Q, Pan X F.Study on the oxidation mechanism of magnetite pellets[J].Sintering & Pellets, 2009, 28(5):13-16