焚烧灰玻璃固化处理工艺条件初探

辐射防护 ›› 2020, Vol. 40 ›› Issue (1): 58-66.

焚烧灰玻璃固化处理工艺条件初探

张禹, 褚浩然, 郑博文, 徐卫, 杨丽莉, 阮佳晟

中国辐射防护研究院,太原 030006

收稿日期:2019-07-29 发布日期:2020-05-15
作者简介:张禹(1990—),男,2013年本科毕业于北京化工大学过程装备与控制工程专业,2016年研究生毕业于北京化工大学机械工程专业,助理研究员。E-mail:zhangyu900505@163.com

Preliminary study on vitrification process conditions of incineration ash

ZHANG Yu, CHU Haoran, ZHENG Bowen, XU Wei, YANG Lili, RUAN Jiasheng

China Institute for Radiation Protection, Taiyuan 030006

Received:2019-07-29 Published:2020-05-15

摘要/Abstract

摘要： 在对国内外玻璃固化体配方进行调研和分析的基础上,结合具体的处理对象和处理要求,将模拟焚烧灰与一定种类以及质量比的添加剂进行混合后高温熔融,形成了玻璃固化体。固化体表观坚硬、光滑且致密,密度在2.6 g/cm³以上。经X射线衍射法(XRD)检测,样品为均匀的玻璃态物质。证明焚烧灰利用高温熔融方法,得到玻璃固化体的处理工艺可行。同时,焚烧灰的熔融温度随着玻璃添加剂中硼砂含量的增加而降低,熔融态的流动性和成型效果也明显改善。最终,实验初步得到焚烧灰熔融处理的工艺条件为:当B₂O₃和Na₂O的添加量在30%～35%之间时,处理温度应至少保持在1 100 ℃以上;当B₂O₃和Na₂O的添加量达到40%时,处理温度可以降低至1 000 ℃或更低。最后,以真实焚烧灰在相同处理条件下进行实验,得到了相似的结果。

关键词: 焚烧灰, 玻璃固化, 工艺条件

Abstract: A kind of solidified glass is prepared with simulated incineration ash and additives in certain proportion based on research and analysis of domestic and foreign vitrification formulas which combines our specific processing objects and processing requirements. The solidified glass is apparently hard, smooth, dense with a density of higher than 2.6 g/cm³ and shows a uniform glassy substance in XRD tests, and thus proves a feasible melting process of incineration ash treatment. Experimental results show that the melting temperature of incineration ash decreases with the increase of borax content of additive and the fluidity and molding effect are also significantly improved. Experimental conditions for the initial incineration ash melting treatment are as follows: the treatment temperature should be higher than 1 100 ℃ when the addition amount of B₂O₃ and Na₂O was 30%-35%; the treatment temperature can be lowered to 1 000 ℃ when the addition amount of B₂O₃ and Na₂O reaches 40%. Experiments of real incineration ash under the above mentioned same processing conditions obtained same results.

Key words: incineration ash, vitrification, process condition

中图分类号:

TL941

张禹, 褚浩然, 郑博文, 徐卫, 杨丽莉, 阮佳晟. 焚烧灰玻璃固化处理工艺条件初探[J]. 辐射防护, 2020, 40(1): 58-66.

ZHANG Yu, CHU Haoran, ZHENG Bowen, XU Wei, YANG Lili, RUAN Jiasheng. Preliminary study on vitrification process conditions of incineration ash[J]. RADIATION PROTECTION, 2020, 40(1): 58-66.

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