振动筛板萃取塔在天然铀提取与纯化工艺中的应用和改进  

Application and Improvement of Reciprocating-sieve Plate Extraction Column in Natural Uranium Extraction and Purification Process

作　　者：王学军[1] 杨立峰 肖少华 刘浩 李林艳[1] 刘靖[1] 刘欣[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084 [2]中核二七二铀业有限责任公司,湖南衡阳421002

出　　处：《核科学与工程》2013年第3期299-304,共6页Nuclear Science and Engineering

摘　　要：振动筛板萃取塔是工业萃取工艺过程中的一种常用设备,通过在多家化工及制药企业工业规模的生产实践,发现了一些问题并进行了优化和改进,将其应用到天然铀提取与纯化工艺中取得了很好的效果。振动筛板萃取塔是整个萃取工艺过程的核心,传动装置是振动筛板萃取塔的关键部件,拖动电机是传动装置的心脏。因此,选择合理的调速方式是至关重要的,根据对几种调速方式原理及性能的比较,论述了几种适宜作为振动筛板萃取塔传动装置的调速方式,电磁滑差调速与变频调速对于一般要求不高的工业应用,技术上都能够满足要求,但是,变频调速具有更宽的工作范围和节能效果。在核工业天然铀提取与纯化工艺中,用振动筛板萃取塔应用变频调速方式,使工艺过程及操作更简单,系统运行更稳定。Reciprocating-sieve plate extraction column is commonly used in the extraction process. Optimization and application were conducted successfully via production practice in some chemical and pharmaceutical plants, and good results are obtained while it is applied in the natural uranium extraction and purification process. The key component of reciprocating-sieve plate extraction column is gear-drive equipment in which drive motor serves as its core. Hence, it is important to select appropriate mode of speed regulation. In this paper, the principle and performance of several mode ofspeed regulation are compared. Both electromagnetic slip and frequency speed-regulation can be applied in general industrial process, but frequency speed-regulation with low energy cost can be used in wider operating range. The application of frequency speed- regulation mode used in reciprocating-sieve plate extraction column will increase the convenience and stability of natural uranium extraction and purification process.

关 键 词：振动筛板萃取塔 核工业 天然铀提取与纯化 传动装置 变频调速方式 制药工业 

分 类 号：TL213[核科学技术—核燃料循环与材料]