| 钢铁过程细微颗粒物凝并性能研究 |
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| 引用本文： | 白皓,钱文涛,宗燕兵,苍大强,松本克才,谷口尚司.钢铁过程细微颗粒物凝并性能研究[J].北京科技大学学报,2007(Z2). |
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| 作者姓名： | 白皓 钱文涛 宗燕兵 苍大强 松本克才 谷口尚司 |
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| 作者单位： | 北京科技大学冶金与生态工程学院 北京100083(白皓，宗燕兵，苍大强)，北京科技大学土木与环境工程学院 北京100083(钱文涛)，日本东北大学环境科学研究科 日本仙台9808579(松本克才，谷口尚司) |
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| 摘 要： | 为寻求一种收集钢铁冶炼过程中产生的气溶胶颗粒的方法,研究了EAF粉尘颗粒物的性质.采用Zn蒸汽氧化产生的ZnO模拟气溶胶颗粒进行凝并实验研究,另采用熏香烟雾在不同的搅拌速度下进行气溶胶凝并实验,并将实验结果与理论计算进行比较.同时,采用一种考虑颗粒间相互作用的气溶胶凝并模型估算反应范德华力作用的Hamaker常数.实验结果表明,在搅拌条件下,对于气溶胶的凝并应考虑微细颗粒间的相互作用.
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| 关 键 词： | EAF 粉尘 气溶胶凝并 范德华力 Hamaker常数 |
Coagulation characteristics of fine particles generated from steelmaking |
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| BAI Hao,QIAN Wentao,ZONG Yanbing,CANG Daqiang,K.MATSUMOTO,S.TANIGUCHI Metallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing ,China Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing ,China Graduate School of Environmental Studies,Tohoku University,Sendai -,Japan.Coagulation characteristics of fine particles generated from steelmaking[J].Journal of University of Science and Technology Beijing,2007(Z2). |
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| Authors: | BAI Hao QIAN Wentao ZONG Yanbing CANG Daqiang KMATSUMOTO STANIGUCHI Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing China Civil and Environmental Engineering School University of Science and Technology Beijing Beijing China Graduate School of Environmental Studies Tohoku University Sendai - Japan |
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| Institution: | BAI Hao1),QIAN Wentao2),ZONG Yanbing1),CANG Daqiang1),K.MATSUMOTO3),S.TANIGUCHI3)1) Metallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing 100083,China 2) Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 100083,China 3) Graduate School of Environmental Studies,Tohoku University,Sendai 980-8579,Japan |
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| Abstract: | In order to find some possible methods to collect aerosol particles in steel making process,the particles of EAF dust were analyzed.The aerosol coagulation experiment of ZnO particles which were generated from the oxidation of Zn vapor was carried out and the coagulation phenomenon was observed.Furthermore,the aerosol coagulation in an agitated vessel was studied.By using incense aerosols,experiments under different agitation speeds were conducted.Experimental results were compared with theoretical calculation and the values of the coagulation coefficient of shear coagulation were obtained.An aerosol coagulation model considering the interaction effect between particles was applied to estimating the Hamaker constant.This result shows that the model can be applied to the aerosol coagulation under agitation condition to consider the interaction of particles. |
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| Keywords: | EAF dust aerosol coagulation London-van der Waals force Hamaker constant |
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