东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (5): 654-658.DOI: 10.12068/j.issn.1005-3026.2018.05.010

• 材料与冶金 • 上一篇    下一篇

生物质烧结燃料反应性优化研究

刘超1， 张玉柱1,2， 邢宏伟2， 康月1   

  1. (1. 东北大学 冶金学院， 辽宁 沈阳110819; 2. 华北理工大学 冶金与能源学院， 河北 唐山063009)
  • 收稿日期:2016-12-23 修回日期:2016-12-23 出版日期:2018-05-15 发布日期:2018-05-25
  • 通讯作者: 刘超
  • 作者简介:刘超(1989-)，男，河北唐山人，东北大学博士研究生； 张玉柱(1956-)，男，河北南皮人，华北理工大学教授，东北大学博士生导师.
  • 基金资助:
    河北省自然科学基金重点资助项目(E2016209384).

Research on Reactive Optimization of Biomass Fuel Based on Sintering

LIU Chao1， ZHANG Yu-zhu1,2， XING Hong-wei2， KANG Yue1   

  1. 1. School of Metallurgy， Northeastern University， Shenyang 110819， China; 2. College of Metallurgy and Energy， North China University Science and Technology， Tangshan 063009， China.
  • Received:2016-12-23 Revised:2016-12-23 Online:2018-05-15 Published:2018-05-25
  • Contact: ZHANG Yu-zhu
  • About author:-
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摘要： 由于生物质燃料放热反应太快，直接应用在烧结中导致火焰前峰与热波前峰不匹配影响烧结矿性能.因此，利用CaO粉末对生物质燃料孔隙进行填充和生物质燃料“包裹制粒”对生物质燃料改性，并利用差热实验和热重实验对改性后燃料和焦煤进行对比检测实验.结果表明:生物质燃料经CaO粉末改性后，生物质燃料放热开始反应温度Te提升至382.09℃，放热拐点温度Ti提高至395.23℃，差热曲线(DTA)后移延缓热量释放;改性生物质燃料经包裹制粒后，开始失重温度提高至462℃，放热时间明显延长，与焦粉失重曲线接近.

关键词: 生物质燃料, 铁矿烧结, 生物质改性, 包裹制粒, 烧结烟气

Abstract: The exothermic reaction of biomass fuel is too fast， causing a heat mismatch between flame front and wave front， which can greatly affect the performance of the ore sintering. In this work， the CaO powder will be filled in the pore of biomass fuel and the “package granulation” will be used to make a modification of biomass fuel in order to optimize the reaction. The differential thermal and thermo gravimetric results of modified fuel are compared with those of coke breeze. The experimental results show that the exothermic reaction temperature of the biomass fuel modified by CaO powder increases to 382.09℃ and the exothermic inflection point temperature increases to 395.23℃， and the differential thermal curve moves back and delays thermal release. As to the biomass fuel modified by the “package granulation” in the sintering mixture， the weightlessness temperature increases to 462℃， the weight loss time is prolonged， and the weight loss curve closes to that of coke powder.

Key words: biomass fuel, iron ore sintering, biomass modification, package granulation, sintering fuel gas

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