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| 氯化钠的吸波特性及微波干燥工艺研究 | |
| 引用本文： | 刘晨辉,张利波,彭金辉,刘秉国,夏洪应,黄卡玛. 氯化钠的吸波特性及微波干燥工艺研究[J]. 矿冶, 2012, 21(2): 42-45 |
| 作者姓名： | 刘晨辉 张利波 彭金辉 刘秉国 夏洪应 黄卡玛 |
| 作者单位： | 1. 非常规冶金省部共建教育部重点实验室,云南省复杂有色金属资源清洁利用国家重点实验室,云南省微波能应用及装备技术工程实验室,昆明 650093 2. 四川大学无线电物理应用电磁研究所,成都,610064 3. 云南铜业股份有限公司,昆明,650102 |
| 基金项目： | 国家自然科学基金重大项目，云南省科技厅应用基础研究计划项目，云铜预研基金项目 |
| 摘 要： | 采用终端开路同轴探头反射法测量了含水率0%～5%的氯化钠反射系数,研究了微波频率、含水率和温度对氯化钠含水物料吸波性能的影响,并对氯化钠的微波干燥工艺进行分析。结果表明:微波频率在2.3～2.6 GHz对物料的吸波性能影响不大,含水率的增加能显著提高物料的吸波能力和微波能的耗散,氯化钠的吸波性能与含水率之间存在线性关系,温度升高也会引起物料吸波性能显著提升;通过对物料微波干燥工艺研究得到较好的微波干燥工艺条件:干燥温度60～70℃、干燥时间70～90 s、物料厚度35～45 mm。 |
| 关 键 词： | 氯化钠 吸波特性 微波干燥 |
| 收稿时间： | 2011-11-18 |
| 修稿时间： | 2012-04-23 |
THE MICROWAVE ABSORPTION PROPERTY AND MICROWAVE DRYING OF SODIUM CHLORIDE |
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| LIU Chen-hui,ZHANG Li-bo,PENG Jin-hui,LIU Bing-guo,XIA Hong-ying and HUANG Ka-ma. THE MICROWAVE ABSORPTION PROPERTY AND MICROWAVE DRYING OF SODIUM CHLORIDE[J]. Mining & Metallurgy, 2012, 21(2): 42-45 | |
| Authors: | LIU Chen-hui ZHANG Li-bo PENG Jin-hui LIU Bing-guo XIA Hong-ying HUANG Ka-ma |
| Affiliation: | 1.State Key Laboratory Breeding Base of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province,Key Laboratory of Unconventional Metallurgy,Ministry of Education, Engineering Laboratory of Microwave Energy Application and Equipment Technology,Yunnan Province, Kunming 650093,China;2.Institute of Applied Electromagnetics,College of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China;3.Yunnan Copper Industry Group Co.Ltd.,Kunming 650102,China) |
| Abstract: | The open-ended coaxial sensor reflection method is adopted to measure the coefficient of wet sodium chloride with moisture from 0% to 5%,the influence of microwave frequency,water content and temperature on microwave absorbing ability and microwave drying technology of wet sodium chloride are studied.The results show that: the microwave frequency which is between 2.3~2.6 GHz almost has no effect on the microwave absorption property,the increase of water content in the sample can dramatically increase in the microwave absorption property,and the microwave absorption property of the sample has a linear relationship with water content,temperature increasing leads to significant increase in microwave absorption property of wet sodium chloride.Microwave drying technology of sodium chloride is studied thus the optimized microwave drying process parameters for sodium chloride are obtained as follows: drying temperature 60~70 ℃,drying time 70~90 s with sample thickness 35~45 mm. |
| Keywords: | sodium chloride microwave absorption property microwave drying |
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