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新型混合澄清槽的澄清性能

DOI: 10.3969/j.issn.1005-3026.2014.04.021, PP. 548-550

Keywords: 混合澄清槽,水相夹带量,搅拌转速,离底高度,环盖尺寸

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Abstract:

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.

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