Hu Peng-hua, Li Xian-jie
Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, People's Republic of China.
J Radiol Prot. 2012 Sep;32(3):289-300. doi: 10.1088/0952-4746/32/3/289. Epub 2012 Jul 19.
Mine ventilation is the most important way of reducing radon in uranium mines. At present, the radon and radon progeny levels in Chinese uranium mines where the cut and fill stoping method is used are 3-5 times higher than those in foreign uranium mines, as there is not much difference in the investments for ventilation protection between Chinese uranium mines and international advanced uranium mines with compaction methodology. In this paper, through the analysis of radon reduction and ventilation systems in Chinese uranium mines and the comparison of advantages and disadvantages between a variety of ventilation systems in terms of radon control, the authors try to illustrate the reasons for the higher radon and radon progeny levels in Chinese uranium mines and put forward some problems in three areas, namely the theory of radon control and ventilation systems, radon reduction ventilation measures and ventilation management. For these problems, this paper puts forward some proposals regarding some aspects, such as strengthening scrutiny, verifying and monitoring the practical situation, making clear ventilation plans, strictly following the mining sequence, promoting training of ventilation staff, enhancing ventilation system management, developing radon reduction ventilation technology, purchasing ventilation equipment as soon as possible in the future, and so on.
矿井通风是降低铀矿井中氡的最重要方式。目前，采用充填采矿法的中国铀矿井中的氡及其子体水平比国外铀矿井高3至5倍，因为中国铀矿井与采用压实方法的国际先进铀矿井在通风防护投资方面没有太大差异。本文通过对中国铀矿井的降氡和通风系统进行分析，并在氡控制方面比较各种通风系统的优缺点，试图阐明中国铀矿井中氡及其子体水平较高的原因，并提出氡控制与通风系统理论、降氡通风措施和通风管理三个方面的一些问题。针对这些问题，本文在加强审查、核实和监测实际情况、明确通风计划、严格遵循采矿顺序、促进通风人员培训、加强通风系统管理、开发降氡通风技术、未来尽快购置通风设备等方面提出了一些建议。
