| 转盘萃取塔的改进 |
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| 引用本文： | 齐鸣斋,戴杰.转盘萃取塔的改进[J].化工学报,2000,51(3):399-402. |
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| 作者姓名： | 齐鸣斋 戴杰 |
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| 作者单位： | 华东理工大学化工系!上海200237,南京化工厂研究所!南京210038 |
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| 摘 要： | 引 言转盘塔 (ＲＤＣ)具有结构简单、通量大、造价低、操作维修方便等优点 ,得到广泛应用 .但ＲＤＣ靠平滑转盘在全塔上、下一致地对连续相(ｃ)和分散相 (ｄ)整体输入能量造成以下问题 .( 1 )转速ＮＲ 较高 ,导致ｃ相轴向混合严重、能耗大、转轴晃动厉害 ,塔内界面张力σ大的物系更是如此 ;( 2 )液滴平均直径ｄｐ、持液率轴向分布过宽 .即进口端液滴不能被最初几块转盘充分分散 ,ｄｐ 大上升快 ,小 ,较长一塔段 (约 0 .5ｍ左右 )不能发挥有效作用 .而液滴上升过程中会被转盘不断分散 ,以至出口端分散过度 ,ｄｐ 过小、偏大 ,易过早出…
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| 关 键 词： | 萃取塔 转盘塔 改造 塔器 |
MODIFIED ROTATING DISK CONTACTOR |
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| Qi Mingzhai,,Dai Jie.MODIFIED ROTATING DISK CONTACTOR[J].Journal of Chemical Industry and Engineering(China),2000,51(3):399-402. |
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| Authors: | Qi Mingzhai Dai Jie |
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| Affiliation: | Qi Mingzhai (Department of Chemical Engineering,East China University of Science and Technology,Shanghai?)Dai Jie (Research Institute of Nanjing Chemical Plant,Nanjing?) |
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| Abstract: | A new type of modified extraction equipment——CTRDC(rotating disk contactor with closed turbine)has been developed.The experimental results of hydrodynamics and mass transfer in CTRDC show that the rotor speed required for satisfactory dispersion could decrease sharply with more uniform axial d p distribution.Compared with RDC,CTRDC offers better performance,such as throughput and efficiency.The experimental results can serve as a reference for scale up design and operation optimization. |
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| Keywords: | extraction column improved RDC rotating disk contactor with closed turbine |
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