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›› 2017, Vol. 17 ›› Issue (1): 151-155.DOI: 10.12034/j.issn.1009-606X.216216

• 过程与工艺 • 上一篇    下一篇

石灰的活性度及微观结构研究

郝素菊1,任倩倩2,张玉柱3,蒋武锋1,郝华强2,薄荷4,董建君4   

  1. 1. 华北理工大学冶金与能源学院
    2. 东北大学冶金学院
    3. 华北理工大学现代冶金技术教育部重点实验室
    4. 唐山科技职业技术学院
  • 收稿日期:2016-06-29 修回日期:2016-08-15 出版日期:2017-02-20 发布日期:2017-02-22
  • 通讯作者: 张玉柱 zyz@ncst.edu.cn

Study on the Activity and Microstructure of Lime

HAO Su-ju 1,REN Qian-qian 2,ZHANG Yu-zhu 3,JIANG Wu-feng 1,HAO Hua-qiang 2,BO He 4,DONG Jian-jun 4   

  1. 1. College of Metallurgy ＆ Energy, North China University of Science and Technology
    2. School of Metallurgy, Northeastern University
    3. Modern Metallurgical Technique Key Lab, Ministry of Education, North China Univ. Sci. Technol.
    4. Tangshan Vocational College of Science and Technology
  • Received:2016-06-29 Revised:2016-08-15 Online:2017-02-20 Published:2017-02-22
  • Contact: ZHANG Yu-zhu zyz@ncst.edu.cn

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摘要： 采用场发射扫描电镜和全自动压汞仪研究了石灰的晶粒大小、比表面积、孔隙等微观结构，考察了煅烧时间、温度和压力对石灰活性度的影响规律，确定石灰微观结构与石灰活性度的关系. 结果表明，随石灰的比表面积、平均孔径和孔容积增加，石灰活性度先增大后减小，石灰比表面积约为2.0 m2/g、平均孔径约为850 nm、孔容积约为0.58 mL/g时石灰活性度最高.

关键词: 石灰, 活性度, 比表面积, 平均孔径, 孔容积

Abstract: The micro structure on the grain size, specific surface area and the pore structure of lime were analyzed by means of the field emission SEM and automatic pressure mercury, revealing the influence of calcination time, temperature and pressure on the activity of lime, determining the relationship between microstructure of lime and lime activity. The results showed that lime activity increases firstly and then decreases with the increasing of specific surface area, average pore diameter and pore volume of lime. When specific surface area is 2.0 m2/g around, the average pore size is about 850 nm, the hole volume is about 0.58 mL/g, the activity of lime is highest.

Key words: lime, activity, specific surface area, average pore diameter, pore volume

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