东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (3): 395-398.DOI: -

• 材料与冶金 • 上一篇    下一篇

双搅拌高效澄清萃取槽澄清度的因次分析

刘燕，张廷安，赵秋月，王淑婵   

  1. (东北大学多金属共生矿生态化利用教育部重点实验室，辽宁沈阳110819)
  • 收稿日期:2012-09-27 修回日期:2012-09-27 出版日期:2013-03-15 发布日期:2013-01-26
  • 通讯作者: 刘燕
  • 作者简介:刘燕(1970-)，女，湖南湘乡人，东北大学副教授，博士；张廷安(1960-)，男，河南周口人，东北大学教授，博士生导师.
  • 基金资助:
    国家高技术研究发展计划项目(2010AA03A405)；国家自然科学基金资助项目(51074047)；辽宁省财政厅/省计划项目(200921007).

Dimensional Analysis of the Clarity in High Efficient Extraction and Clarification Tanks with Double Stirring

LIU Yan， ZHANG Tingan， ZHAO Qiuyue， WANG Shuchan   

  1. Key Laboratory of Ecological Utilization of Multimetal Intergrown Ores of Education Ministry， Northeastern University， Shenyang 110819， China.
  • Received:2012-09-27 Revised:2012-09-27 Online:2013-03-15 Published:2013-01-26
  • Contact: ZHANG Tingan
  • About author:-
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摘要： 提出了“双搅拌新型高效分离萃取槽”的新概念，即在澄清室增加搅拌装置，通过选择适当的搅拌条件，提高萃取过程水相与有机相的澄清分离速率，从而达到提高萃取设备效率的目的.设计了一套双搅拌萃取水模型实验装置，采用冷态模拟手段研究不同搅拌条件下搅拌离心场及重力场耦合作用对萃取槽澄清室中水油两相分离效果的影响，并结合实验数据，建立了实验范围内的开式45°涡轮桨的澄清度与搅拌转速、离底距离、搅拌桨距溢流口距离之间的准数方程.经实验验证，计算值与实验值吻合良好.

关键词: 澄清萃取槽, 双搅拌, 澄清度, 因次分析, 物理模拟

Abstract: The new concept "high efficient extraction and clarification tanks with double stirring" was put forward， that is， inserting a stirring unit in the clarifying chamber. By choosing an appropriate stirring condition， the separation rate of the aqueous phase and the organic phase was improved in the clarification extraction process， which increased the efficiency of the extraction equipment. A double stirring water model experimental device was designed and produced in this project. By means of cold state simulation， the influences of centrifugal field coupling with the gravity field on the separation of the oil and water phases in the extraction tank were studied under the different stirring conditions. Finally， combining with the experiment data， the dimensional analysis method was adopted. The dimensionless equation between the clarity under the open type 45 degrees of turbine blades and the stirring speed， distance from the bottom， the distance from the overflow entrance to the stirring blades was established. The experiments showed that the calculations are in good agreement with the experimental values.

Key words: extraction and clarification tanks, double stirring, clarity, dimensional analysis, physical simulation

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