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Novel blast furnace operation process involving charging with low-titanium vanadium-titanium magnetite carbon composite hot briquette
  • ISSN号:1005-3026
  • 期刊名称:《东北大学学报:自然科学版》
  • 时间:0
  • 分类:TQ517.3[化学工程] TD951.1[矿业工程—选矿]
  • 作者机构:School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
  • 相关基金:The authors are especially thankful to the National Natu- ral Science Foundation of China (No. 51574067), the Na- tional High Technology Research and Development Program of China (No. 2012AA062302 and No. 2012AA062304), and the Fundamental Research Funds for the Central Universities of China (No. N130602003).
中文摘要:

强风炉子(BF ) 的一个创新过程操作涉及因低钛的钒钛磁铁矿碳控告合成热煤饼(LVTM-CCB ) 为利用 LVTM 并且保存精力被建议。在这研究,在弄软,融化,并且滴下混合负担的行为上控告比率的 LVTM-CCB 的效果全身地被探索,并且珍贵元素 V 和 Cr 的迁居广泛地被调查。与增加控告比率的 LVTM-CCB,弄软的间隔 T 40 T 4 从 Mn 和 Ca 的 146.1ng 效率增加的结果表演分别地是 92.42% 和 9.61% 。而且,锰沥滤的动力学显示沥滤与 12.28 kJ 的一个明显的激活精力跟随控制散开的模型

英文摘要:

An innovative process of blast furnace (BF) operation involving charging with low-titanium vanadium-titanium magnetite carbon composite hot briquette (LVTM-CCB) was proposed for utilizing LVTM and conserving energy, In this study, the effect of LVTM-CCB charging ratio on the softening, melting, and dripping behaviors of the mixed burden was explored systemically, and the migration of valu- able elements V and Cr was extensively investigated. The results show that with increasing LVTM-CCB charging ratio, the softening inter- val T40 - T4 increases from 146.1℃ to 266.1℃, and the melting interval To - Ts first decreases from 137.2℃ to 129.5℃ and then increases from 129.5℃ to 133.2℃. Moreover, the cohesive zone becomes narrower and then wider, and its location shifts slightly downward. In addi- tion, the recovery ratios of V and Cr in dripped iron first increase and then decrease, reaching maximum values of 14.552% and 28.163%, respectively, when the charging ratio is 25%. A proper LVTM-CCB charging ratio would improve the softening--melting behavior of the mixed burden; however, Ti(C,N) would be generated rapidly in slag when the charging ratio exceeds 25%, which is not favorable for BF op- eration. When considering the comprehensive softening-melting behavior of the mixed burden and the recovery ratios of V and Cr, the rec- ommended LVTM-CCB charging ratio is 20%.

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期刊信息
  • 《东北大学学报:自然科学版》
  • 中国科技核心期刊
  • 主管单位:中华人民共和国教育部
  • 主办单位:东北大学
  • 主编:汪晋宽
  • 地址:沈阳.南湖
  • 邮编:110819
  • 邮箱:
  • 电话:024-83687378
  • 国际标准刊号:ISSN:1005-3026
  • 国内统一刊号:ISSN:21-1344/T
  • 邮发代号:8-120
  • 获奖情况:
  • 全国优秀科技期刊二等奖,教育部优秀高校自然科学学报一等奖二次,获原冶金部科技期刊质量评比一等奖三次,中国期刊方阵“双百”期刊
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  • 被引量:23296