| 烧结法生料浆流变性的研究 |
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| 引用本文： | 李小斌,唐时健,刘桂华.烧结法生料浆流变性的研究[J].化学工程,2006,34(7):17-20,37. |
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| 作者姓名： | 李小斌 唐时健 刘桂华 |
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| 作者单位： | 中南大学,冶金科学与工程学院,湖南,长沙,410083;中南大学,冶金科学与工程学院,湖南,长沙,410083;中南大学,冶金科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金资助项目(50274076)，国家重点基础研究发展规划资助项目(G1999064910) |
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| 摘 要： | 为了降低烧结法氧化铝生产中烧结过程的能耗,从流变学角度测量生料浆在6个不同剪切速率下的剪切应力,通过其流变曲线,研究了生料浆的触变性及水分质量分数、温度、表面活性剂对生料浆流变性的影响。结果表明:含水质量分数为35%的生料浆具有触变性;随着生料浆含水质量分数从34.7%增加到39.7%、温度从40℃升高到80℃,添加适当表面活性剂R—COONa,可降低生料浆的屈服应力和表观粘度,使生料浆的流动性得到一定改善。
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| 关 键 词： | 生料浆 流变性 表面活性剂 触变性 |
| 文章编号： | 1005-9954（2006）07-0017-04 |
Study on rheological property of raw slurry in sintered process |
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| LI Xiao-bin,TANG Shi-jian,LIU Gui-hua.Study on rheological property of raw slurry in sintered process[J].Chemical Engineering,2006,34(7):17-20,37. |
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| Authors: | LI Xiao-bin TANG Shi-jian LIU Gui-hua |
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| Affiliation: | Department of Metallurgical Science and Engineering, Central South University, Changsha 410083, Hunan Province, China |
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| Abstract: | In order to decrease energy consumption in sintered process of alumina production,the shearing force of the non-Newton fluid at 6 different shearing rates was measured in view of rheology.The effects of water mass(fraction),temperature,surfactant on rheological property and the thixotropic property of the raw slurry through the measurement were studied.The results show that with the increase of water mass fraction from 34.7% to 39.7% and temperature from 40 ℃ to 80 ℃ and the addition of appropriate surfactant R—COONa),the yield stress and(apparent) viscosity of raw slurry can be decreased,the fluidity of raw slurry is improved,and the raw slurry with(water) mass fraction of 35% has thixotropic property. |
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| Keywords: | raw slurry rheological property surfactant thixotropic property |
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