Optimization of Experiments for Microwave Drying of Hydrometallurgy Mud Using Response Surface Methodology

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• 作者：Guo Lin ; Tu Hu ; Jinhui Peng ; Shaohua Yin…
• 关键词：Hydrometallurgy mud ; Microwave heating ; Dehydration ; Response surface methodology (RSM)
• 刊名：Arabian Journal for Science and Engineering
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：41
• 期：2
• 页码：569-576
• 全文大小：1,628 KB
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• 作者单位：Guo Lin (1) (2) (3) (4)
  Tu Hu (1) (2) (3) (4)
  Jinhui Peng (1) (2) (3) (4)
  Shaohua Yin (1) (2) (3) (4)
  Libo Zhang (1) (2) (3) (4)
  Wenqian Guo (1) (2) (3) (4)
  Yuhang Liu (1) (2) (3) (4)
  
  1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, People’s Republic of China
  2. Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, 650093, People’s Republic of China
  3. National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, People’s Republic of China
  4. Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming, 650093, People’s Republic of China
  
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Mathematics
  Science, general
  
• 出版者：Springer Berlin / Heidelberg

文摘

Microwave heating has been applied to improve the drying efficiency and reduce energy consumption in the dehydration of hydrometallurgy mud. Experiences of microwave drying of hydrometallurgy mud are optimized using response surface methodology. The effects of each factor and their interaction on the dehydration ratio are investigated, and a second-order polynomial model for dehydration ratio is established. The optimized microwave drying conditions are as follows: sample mass 28.89g, microwave power 630.56W and drying time 3.17min. The predicted dehydration ratio of hydrometallurgy mud is 99.62%, which is closed to the averaged experimental value of 99.36% under the optimal conditions, indicating that regressive equation is fit for the dehydration ratio perfectly. Particle analysis suggests that the size distribution of materials using microwave heating is more even than that in an oven. The technology has great significance to shorten drying time and to reduce the energy loss for the industrial application. Keywords Hydrometallurgy mud Microwave heating Dehydration Response surface methodology (RSM)