自碎式消污液清除室内壁面放射性粉尘试验研究

Experimental study on decontamination of self-crushing decontamination fluid for radioactive dust removal on indoor wall surface

针对室内壁面放射性污染粉尘控制与清除的难题,提出一种自碎式消污液进行放射性污染控制与清除方法,研发了专用的喷射器、碎片回收器和自碎式消污液,对专用设备的作业性能进行了测试,两种设备的作业性能均较好地满足使用要求。为检验研发的自碎式消污液对放射性粉尘的污染控制与清除效果,采用铀矿粉为目标粉尘,设计进行了自碎式消污液对混凝土、玻璃和大理石三种介质表面放射性粉尘的去污试验。结果表明,自碎式消污液对于混凝土、玻璃和大理石表面的放射性粉尘的去污率可以达到85%以上。验证了自碎式消污液对放射性粉尘的去污效果,可为工程应用提供参考。

To control and remove radioactive pollution on indoor wall surface, a special injector, a collector and self-crushing decontamination fluid were developed. As a result of performance tests, these specific equipments met the requirements of application considerably well. The decontamination effects of the self-crushing decontamination fluid for radioactive dusts on the surface of concrete, glass, and marble were measured. The results showed that its decontamination efficiency were higher than 85 %. Practical applications of this method could be expected.