鼓泡对高放废液玻璃固化陶瓷电熔炉熔化性能影响模拟研究

doi:10.16552/j.cnki.issn1001-1625.2025.0113

摘要/Abstract

摘要： 在核废料玻璃固化领域,焦耳加热陶瓷电熔炉(JHCM)因工艺成熟、处理量大且易于远程操作的特点,被广泛用于高放废液(HLLW)处理。本研究借助GFM玻璃熔窑模型,分析某高放废液玻璃固化陶瓷电熔炉在不同鼓泡速率和不同鼓泡位置下的运行状态,获得熔池各物理场分布信息,并评估鼓泡速率和鼓泡位置对熔炉传质传热和配合料熔化速率的影响。结果表明:鼓泡速率增大,冷帽底部平均温度稍有上升,底部冲刷速度增大;鼓泡管位置下移可扩大流场循环范围,改善炉内温度分布均匀性。本研究通过仿真模拟不同鼓泡工艺对高放废液玻璃固化陶瓷电熔炉熔化性能的影响,以期为高效核废料管理提供技术支持。

关键词: 高放废液, 玻璃固化, 焦耳加热陶瓷电熔炉, 鼓泡, 熔化速率, 玻璃熔窑模型

Abstract: In the field of nuclear waste vitrification, Joule-heated ceramic melters (JHCM) is widely employed for the treatment of high-level liquid waste (HLLW) due to their mature technology, high throughput, and suitability for remote operation. In this study, with the aid of the GFM glass furnace model, the operating status of a certain ceramic melter for high-level liquid waste vitrification under different bubbling rates and different bubbling positions was analyzed. The distribution information of each physical field in the melting pool was obtained, and the influence of bubbling rate and bubbling position on the mass and heat transfer of the furnace and the melting rate of the feed was evaluated. The results indicate that as the bubbling rate increases, the average temperature at the cold cap bottom rises slightly, and the scouring velocity at the bottom increases. Lowering the position of the bubbling nozzle expands the circulation region of the flow field, thereby improving the uniformity of temperature distribution within the melter. This study simulates the influence of different bubbling processes on the melting performance of ceramic melter for high level liquid waste vitrification, with the aim of providing technical support for efficient nuclear waste management.

Key words: high-level liquid waste, vitrification, Joule-heated ceramic melter, bubbling, melting rate, glass furnace model

中图分类号:

TQ171

许红梅, 曲晓锐, 李立峰, 赵庆彬, 牛晨晨, 徐凯. 鼓泡对高放废液玻璃固化陶瓷电熔炉熔化性能影响模拟研究[J]. 硅酸盐通报, 2025, 44(6): 2306-2319.

XU Hongmei, QU Xiaorui, LI Lifeng, ZHAO Qingbin, NIU Chenchen, XU Kai. Simulation on Effect of Bubbling on Melting Performance of Ceramic Melter for High-Level Liquid Waste Vitrification[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(6): 2306-2319.

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