辐射防护 ›› 2025, Vol. 45 ›› Issue (S1): 12-17.

• “核设施退役与核环境安全”专刊 • 上一篇    下一篇

一种基于放射性泥浆的振动脱水筛参数寻优方法

孙浩宾, 康劲扬, 钱昱衡, 侯少寒, 马其钊, 李厚霖, 谭凤鸣   

  1. 中核四川环保工程有限责任公司,四川 广元 628000
  • 收稿日期:2024-11-25 发布日期:2026-01-15
  • 作者简介:孙浩宾(1997―),男,2023年毕业于西南石油大学机械工程专业,获工学硕士学位。E-mail:urxvkrxdf@163.com

A parameter optimization method for vibration dehydration screen for radioactive slurry

SUN Haobin, KANG Jinyang, QIAN Yuheng, HOU Shaohan, MA Qizhao, LI Houlin, TAN Fengming   

  1. CNNC Sichuan Environmental Protection Engineering Co., Ltd.,Sichuan Guangyuan 628000
  • Received:2024-11-25 Published:2026-01-15

摘要: 振动脱水筛作为我国核设施退役行业中高放液体贮罐泥浆回取工作中固、液分离的重要设备,其作用是筛分放射性泥浆中的固体和液体。本文以提高振动脱水筛对放射性泥浆的脱水效率为生产要求,提出了一种在不改变振动脱水筛结构的前提下,通过寻找最优振幅、振频和振动方向角3个参数来实现提高振动脱水筛脱水效率的方法。该方法结合正交试验法并使用离散元分析软件对放射性泥浆在振动脱水筛中的脱水过程进行数值模拟,对模拟结果进行多元非线性拟合后,使用遗传退火算法寻找最高脱水效率所对应的震动参数。研究结果表明,振动脱水筛筛网目数为25目时,选取振幅为8 mm、振频为30 Hz、方向角为60°可以取得最优脱水效率。研究结论可为放射性泥浆振动脱水筛的优化设计提供一定指导意义。

关键词: 振动脱水筛, 放射性泥浆, 离散单元法, 脱水效率, 优化算法

Abstract: Vibration dehydration screen, as an important equipment for solid-liquid separation in the work of retrieving slurry from intermediate and high-level liquid waste storage tanks in China's nuclear industry, is designed to separate solids and liquids in radioactive slurry. A method is proposed to improve the dehydration efficiency of the vibration dehydration screen for radioactive slurry without changing its structure. This is achieved by finding the optimal values for the amplitude, vibration frequency, and vibration direction angle. The method combines orthogonal experimental design and discrete element analysis software to numerically simulate the dehydration process of radioactive slurry on the vibration dehydration screen. After fitting the simulation results with a multivariate nonlinear regression, a genetic annealing algorithm is used to find the vibration parameters corresponding to the highest dehydration efficiency. The research results indicate that, with a screen mesh of 25, an amplitude of 8 mm, a vibration frequency of 30 Hz, and a direction angle of 60°, the optimal dehydration efficiency for the vibration dehydration screen can be achieved. The research conclusions could provide some guidance for the optimal design of the vibration dehydration screen for radioactive slurry.

Key words: vibration dehydration screen, radioactive slurry, discrete element method, dehydration efficiency, optimization algorithm

中图分类号: 

  • TL943