放射性废物桶外水泥固化线设计方案

The Design Scheme of the Out-drum Cement Solidification Process Line for Radioactive Wastes

本文以桶外水泥固化工艺为研究对象,介绍了放射性废液桶外水泥固化的工艺流程,提出了桶外水泥固化线的功能需求。根据功能需求,结合非标箱室的设计原则,设置了水泥固化线所需的相关设备,并进行水泥固化线布置。还阐述了水泥固化线的工作过程,提出了水泥固化线所需的配套系统。针对以往存在的搅拌混合器清洗效果不佳、干粉下料管路疏通效果不佳、部分设备热室外检修困难等问题,通过工程样机试验进行了方案论证。最终形成了放射性废物桶外水泥固化线的设计方案,为其他水泥固化线设计提供了参考。

The Out-drum Cement Solidification process is taken as the case of study in this paper,the process flow of the Out-drum Cement Solidification of radioactive liquid was introduced,the fundamental requirements of the Out-drum Cement Solidification process line were proposed.According to the fundamental requirements,relevant equipment of the Cement Solidification process line was set up,and the layout of the Cement Solidification process line was carried out based on the design principles of non-standard box room.The working process of Cement Solidification process line was explained,and the necessary support systems for the Cement Solidification process line were proposed.In response to the problems of the poor cleaning effect of the Out-drum mixer,the poor dredging effect of the dry powder feeding pipe,and difficult maintenance of some equipment outside the hot cell,the scheme demonstration was conducted through engineering prototype testing.Finally,a design scheme for the Out-drum Cement Solidification process line of radioactive waste was formed,providing a reference for the design of other Cement Solidification process lines.