无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2011, Vol. 43 ›› Issue (11): 19-.

• 论文 • 上一篇    下一篇

少量石灰石煅烧生成氧化钙的活性分析

曹纯保,张薇,邓福军   

  1. 南京工业大学材料学院,南京 210009
  • 发布日期:2011-11-09

Analysis on activity of calcium oxide from calcining small amount of limestone

CAO  Chun-Bao, ZHANG  Wei, DENG  Fu-Jun   

  1. School of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China
  • Published:2011-11-09

摘要: 采用静态方法模拟悬浮态反应过程,对少量小粒径的石灰石样品进行煅烧,分析了不同的煅烧温度、煅烧时间、物料质量及粒径对氧化钙的活性影响。结果表明:少量的小粒径石灰石煅烧时,随着煅烧温度和煅烧时间变化,氧化钙活性变化较大;在900 ℃煅烧温度下,随着物料质量减少,物料以稀散状态分布,碳酸钙分解迅速加快,需要的煅烧时间大幅缩短,氧化钙的活性大小逼近悬浮态实际情况。

关键词: 石灰石, 氧化钙, 静态煅烧, 水泥

Abstract: A certain amount of small particle size of limestone was calcined by static method approximated to suspension reaction process.Influences of different calcination temperatures,calcination times,amounts of material,and grain sizes on the activity of calcium oxide (CaO) were analyzed.Results showed that when a small amount of limestone with small particle size was calcined,the activity of CaO changed a lot with the variety of calcination temperatures and calcination times;under 900 ℃,with the reduction of mass of material,limestone distributed in scattered state,CaCO3 was decomposed rapidly,calcination time reduced significantly,activity of CaO approximated to the actual situation under the suspension.

Key words: calcium carbonate, calcium oxide, static calcination, cement

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