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过程工程学报 ›› 2017, Vol. 17 ›› Issue (2): 395-399.DOI: 10.12034/j.issn.1009-606X.216310

• 材料工程 • 上一篇    下一篇

SiO2-Al2O3-CaO-MgO四元熔渣体系密度简易计算模型

信建疆1,干磊1,焦丽娜2   

  1. 1. 江西理工大学冶金与化学工程学院,江西 赣州 341000
    2. 江苏科技大学冶金与材料工程学院,江苏 张家港 215600
  • 收稿日期:2016-09-27 修回日期:2016-10-17 出版日期:2017-04-20 发布日期:2017-04-19
  • 通讯作者: 干磊 ganlei2005@gmail.com
  • 基金资助:
    铜渣中铜铁选择性氯化的基础研究及其资源化

A Simple Density Model for SiO2-Al2O3-CaO-MgO Molten Slags

  XIN Jian-jiang1, GAN Lei1*, JIAO Li-na2   

  1. 1. Sch. Metall. & Chem. Eng., Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China; 
    2. Sch. Metall. & Mater. Eng., Jiangsu University of Science and Technology, Zhangjiagang, Jiangsu 215600, China
  • Received:2016-09-27 Revised:2016-10-17 Online:2017-04-20 Published:2017-04-19

摘要: 根据熔渣体积与温度的线性关系,结合不同组分与温度下密度的实验测量值,建立了简单而准确的SiO2-Al2O3-CaO-MgO四元系熔渣密度计算模型,利用该密度模型绘制了Al2O3质量分数分别为10%, 20%, 30%, 40%,温度为1773和1873 K的条件下的等密度图. 结果表明,模型计算的渣系密度值与文献报道的实验结果一致,相对误差为1.08%,绝对误差为0.041 g/cm3. 随SiO2含量增加,密度显著减小,温度对密度的影响较小.

关键词: SiO2-Al2O3-CaO-MgO渣系, 密度模型, 高炉渣, 精炼渣

Abstract: A simple and accurate density model for SiO2-Al2O3-CaO-MgO molten slags was established in this work, based on the linear relationship between molar volume and temperature. The model was calibrated by open published density measurements. Using current model, the iso-density lines for SiO2-Al2O3-CaO-MgO with 10%, 20%, 30% and 40% mass fraction of Al2O3 at 1773 K and 1873 K were plotted. The results showed that the calculated density values agree very well with measured values, with remarkable relative error of 1.08%, and absolute error (RMSE) of 0.041 g/cm3. It reveals that the density of the slags decreases obviously with increasing SiO2 content, whereas the effect of temperature on density is smaller.

Key words: SiO2-Al2O3-CaO-MgO slag system, density model, blast furnace slag, refining slag