| 烧碱蒸发工艺现状及节能改造的建议 |
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| 引用本文： | 王世常.烧碱蒸发工艺现状及节能改造的建议[J].氯碱工业,2010,46(1):22-29. |
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| 作者姓名： | 王世常 |
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| 作者单位： | 成都东泰永利科技开发有限公司,四川,成都,610041 |
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| 摘 要： | 分析了隔膜法烧碱装置三效顺流部分强制循环蒸发工艺中影响蒸汽消耗和产量的主要因素:蒸汽压力,末效蒸发器真空度,结晶盐、采盐及分离。三效顺流部分强制循环与三效四体两段蒸发工艺存在蒸汽消耗高的问题,建议将生产30%碱液装置改为生产42%或50%的碱液装置,并将三效顺流部分强制循环工艺改造为三效逆流工艺以达到降低汽耗的目的。概述了离子膜法烧碱蒸发及固碱生产技术,分析了离子膜法烧碱蒸发、浓缩工艺采用国产化装置的优势。介绍了蒸发系统真空设备的选型问题,认为真空设备以表面冷凝器加机械真空泵组合为好。
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| 关 键 词： | 隔膜法烧碱 离子膜法烧碱 蒸发 工艺现状 节能技术 改造 |
Present process situation of caustic soda evaporation and several suggestions on energy-saving reformation |
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| WANG Shichang.Present process situation of caustic soda evaporation and several suggestions on energy-saving reformation[J].Chlor-Alkali Industry,2010,46(1):22-29. |
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| Authors: | WANG Shichang |
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| Affiliation: | Chengdu Dongtai Yongli Science and Technology Development Co./a>;Ltd./a>;Chengdu 610041/a>;China |
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| Abstract: | The main factors of affecting both the steam consumption and output in the evaporation process by three-effect downstream partially-forced circulation in diaphragm caustic soda production facilities are analyzed,that is,the stream pressure,the vacuum of the last-effect evaporator and the crystalline salt,the salt collection and separation.The problem of high stream consumption existing in the two-step evaporation process by both three-effect downstream partially-forced circulation and three-effect four-body... |
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| Keywords: | diaphragm caustic soda ion-membrane caustic soda evaporation present process situation energy-saving technique reformation |
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