| 回转装置内三组元颗粒径向混合评价方法分析 |
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| 引用本文： | 李少华,朱明亮,张立栋,王擎,刘朝青,于丁一.回转装置内三组元颗粒径向混合评价方法分析[J].化工进展,2013,32(6):1224-1229. |
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| 作者姓名： | 李少华 朱明亮 张立栋 王擎 刘朝青 于丁一 |
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| 作者单位： | 1.中国大唐科学技术研究院，北京 100032；2东北电力大学油页岩综合利用教育部工程研究中心，吉林 吉林 132012 |
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| 基金项目： | 国家潜在油气资源(油页岩勘探开发利用)产学研用合作创新建设项目;吉林省重大科技发展计划(20096034);东北电力大学博士科研启动基金(BSJXM2011-02)项目 |
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| 摘 要： | 简介了各种混合度评价方法，对3种较常用混合度评价方法——变异系数、接触数及Lacey指数的应用范围进行了分析，其中Lacey指数适合评价径向颗粒混合。以回转装置内三组元颗粒径向混合实验为背景，讨论取样方式对Lacey指数算法的影响。研究表明：取样方式引起混合度数值变化的根本原因在于不同样本内大小颗粒比例不同，进而引起S2数值发生变化。本文通过分析，获得了最佳取样方式为：样本边长尺寸比颗粒最佳混合时横向尺寸略大，本实验最佳取样为6×6取样方式，即边长尺寸为14 mm。
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| 关 键 词： | 三组元颗粒 径向颗粒混合 混合度 Lacey指数 |
Analysis of three-component radial mixing evaluation methods in rotary retorting |
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| LI Shaohua,ZHU Mingliang,ZHANG Lidong,WANG Qing,LIU Chaoqing,YU Dingyi.Analysis of three-component radial mixing evaluation methods in rotary retorting[J].Chemical Industry and Engineering Progress,2013,32(6):1224-1229. |
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| Authors: | LI Shaohua ZHU Mingliang ZHANG Lidong WANG Qing LIU Chaoqing YU Dingyi |
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| Affiliation: | 1China Datang Corporation Science and Technology Research Institute，China Datang Corporation，Beijing 100032，China；2Engineering Research Centre of Ministry of Education for Comprehensive Utilization of Oil Shale，Northeast Dianli University，Jilin 132012，Jilin，China |
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| Abstract: | This paper introduced the evaluation methods of mixing and analyzed the applied range of three common evaluation methods，including coefficient of variation，contact number，and Lacey index. Lacey index is suitable for evaluating radial mixing of particle. This paper also discussed the effects of sampling towards Lacey index under the condition of three-component radial mixing experiments. The results showed that the main reason of the mixing change is the different particle sizes in different samples，resulting in S2 number change. The results revealed the optimum sampling of 6×6 with the side length size of 14 mm，slightly longer than lateral dimensions. |
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| Keywords: | three-component particles radial mixing mixing degree number of Lacey |
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