东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (4): 548-550.DOI: 10.12068/j.issn.1005-3026.2014.04.021

• 材料与冶金 • 上一篇    下一篇

新型混合澄清槽的澄清性能

王淑婵，张廷安，赵秋月，吕超   

  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:2013-07-01 修回日期:2013-07-01 出版日期:2014-04-15 发布日期:2013-11-22
  • 通讯作者: 王淑婵
  • 作者简介:王淑婵(1985-)，女，河北沧州人，东北大学博士研究生；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(2010AA03A405，2012AA062303，2012CBA01205)；国家自然科学基金资助项目(50974035，51004033).

Settling Performance of New Type MixerSettler

WANG Shuchan， ZHANG Tingan， ZHAO Qiuyue， LYU Chao   

  1. Key Laboratory of Ecological Utilization of Multimetal Intergrown Ores of Education Ministry， Northeastern University， Shenyang 110819， China.
  • Received:2013-07-01 Revised:2013-07-01 Online:2014-04-15 Published:2013-11-22
  • Contact: WANG Shuchan
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摘要： 混合澄清槽是稀土生产过程中应用最广泛的萃取设备，其单级的澄清室与混合室体积比多在25∶1以上，造成生产过程中占地面积大、稀土存槽量大、夹带损失高等不利影响.为解决此问题，设计了一种新型混合澄清槽，在澄清室增加搅拌圆筒，创新性采用紫外可见光分光光度法考察不同条件下的水相夹带量以衡量其澄清性能，并与实际生产线测定结果对比.结果表明:适当的搅拌转速、离底高度和环盖尺寸等条件均有利于两相分离.环盖直径30mm、离底高度13cm及搅拌转速低于300r/min时，所测水相夹带量均小于实际生产线夹带量的050%，满足实际生产要求.

关键词: 混合澄清槽, 水相夹带量, 搅拌转速, 离底高度, 环盖尺寸

Abstract: Mixersettler separator is the most widely used extraction equipment in rare earth production process. The volume ratio between singlestage settler and mixer in China’s rare earth industry is generally above 25∶1， which leads to a large floor area， high rare earth accumulation and high entrainment losses. To solve the problem， a new type of mixersettler was designed， and a mixing cylinder was installed in the settler. The aqueous phase entrainment at the settler outlet was studied by ultraviolet visible spectrophotometry and was compared with the case of industrial production process. The experimental results showed that appropriate conditions are conducive to the twophase separation after reducing the settler volume. When the diameter of the ring cover is 30mm， impeller clearance over the tank bottom is 13cm and mixing speed is within 300r/min， the measured aqueous phase entrainment is less than the industrial result of 050%. This proves that the new type mixersettler can meet the demand of industrial production.

Key words: mixersettler, aqueous phase entrainment, mixing speed, impeller clearance over the tank bottom, ring cover size

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