羟甲基纤维素钠(CMC)溶液中同轴复合搅拌桨的功率特性和混合特性研究（英文）

作者：包雨云; 陆语; 梁千顷; 李力; 高正明; 黄雄斌; 秦松

来源：Chinese Journal of Chemical Engineering, 2015, 23(04): 623-632.

• Non-Newtonian fluids
• Coaxial mixer
• Power demand
• Mixing performance

Experimental investigation was carried out in an elliptical based stirred tank with a diameter of 0.48 m to explore the power demand and mixing performance of coaxial mixers.Syrup and CMC solution(sodium carboxy methyl cellulose)were used as the Newtonian and non-Newtonian fluids,respectively.Four different coaxial mixers were combined with either CBY or Pfaudler impeller as the inner one,and anchor or helical ribbon(HR)as the outer one.Results show that Pfaudler-HR is the optimized combination among four coaxial mixers in this work,which provides the shortest mixing time given the same power consumption.Compared with the syrup solution,the increase of power input can make the mixing time decreasing more obviously in the CMC solution.The quantitative correlations for both syrup and CMC solutions were established to calculate the power draw and the mixing time of four coaxial mixers.

• 单位
  化工资源有效利用国家重点实验室; 北京化工大学