| 褐煤干燥后水分复吸的实验研究 |
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| 引用本文： | 王冲,张奉春,邵徇,董建勋,李向武,张君.褐煤干燥后水分复吸的实验研究[J].洁净煤技术,2010,16(5):73-75,32. |
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| 作者姓名： | 王冲 张奉春 邵徇 董建勋 李向武 张君 |
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| 作者单位： | [1]中电投蒙东能源集团公司,内蒙古通辽028000 [2]煤炭科学研究总院北京煤化工研究分院,北京100013 |
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| 摘 要： | 空气湿度是产生复吸的重要条件，湿度越高复吸的程度越高；自然条件下，温度越高复吸速度越快；产物粒度越小复吸速度和复吸程度越大。深度干燥煤的复吸水主要发生在煤堆表面。研究了高温烟气干燥褐煤的水分复吸性能，结果表明，在6％～11％的全水含量范围内，干燥煤复吸后水分升高幅度基本一致。在此全水范围内干燥煤全水高低不会影响复吸结果。
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| 关 键 词： | 褐煤干燥 复吸 粒径 |
Experimental research on moisture re-absorption of dewatering lignite |
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| WANG Chong,ZHANG Feng-chun,SHAO Xun,DONG Jian-xun,LI Xiang-wu,ZHANG Jun.Experimental research on moisture re-absorption of dewatering lignite[J].Clean Coal Technology,2010,16(5):73-75,32. |
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| Authors: | WANG Chong ZHANG Feng-chun SHAO Xun DONG Jian-xun LI Xiang-wu ZHANG Jun |
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| Affiliation: | 1. CPI Mengdong Energy Group Co. , Ltd. , Tongliao 028000, China ; 2. Beijing Research Institute of Coal Chemistry,China Coal Research Institute, Beijing 100013, China) |
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| Abstract: | The moisture content in the ambient is the key. The higher the moisture content, the more moisture is re-absorbed. The high temperature and fine particle size promote the moisture re-absorption to speed and extend. The re-absorption occurs in the particle surface with the deep dewatering lignite. The moisture re-absorption ability of the dewatering lignite with high temperature flue gas is experimentally investigated. It is found that for the deep drying lignite with moisture of 6% - 11% , the moisture content increase caused by re-absorption is almost same and the moisture content in the dewatering lignite has no influence on the moisture re-absorption. |
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| Keywords: | lignite drying re-absorption particle size |
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