| 留矿法铀矿井通风降氡技术 |
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| 引用本文： | 李先杰,崔满生,胡鹏华,王尔奇,谢叙兴.留矿法铀矿井通风降氡技术[J].铀矿冶,2011,30(3). |
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| 作者姓名： | 李先杰 崔满生 胡鹏华 王尔奇 谢叙兴 |
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| 作者单位： | 1. 核工业北京化工冶金研究院,北京,101149
2. 中核抚州金安铀业有限公司,江西乐安,344301 |
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| 摘 要： | 通过对留矿法铀矿井通风系统现状的调查,得到多中段留矿法开采矿井通风氡污染的主要原因是采空区的有效密闭差,由此导致入风污染,漏风严重,污风串联,使井下工作场所氡活度浓度及氡子体α潜能浓度严重超过国家标准。针对存在的问题,开展留矿法降氡通风技术的研究,提出了留矿法采场应实行下行风流结合局扇强制压入的通风方式和多中段留矿法矿井采取间隔式通风网络的通风原则。结合某铀矿井实际,开展通风系统整改,取得了井下工作场所氡活度浓度及氡子体α潜能浓度下降了50%~80%的良好效果。
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| 关 键 词： | 留矿法 矿井通风 降氡 |
Ventilation and radon reduction in shrinkage method uranium mine |
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| LI Xian-jie,CUI Man-sheng,HU Peng-hua,WANG Er-qi,XIE Xu-xing.Ventilation and radon reduction in shrinkage method uranium mine[J].Uranium Mining and Metallurgy,2011,30(3). |
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| Authors: | LI Xian-jie CUI Man-sheng HU Peng-hua WANG Er-qi XIE Xu-xing |
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| Affiliation: | LI Xian-jie1,CUI Man-sheng2,HU Peng-hua1,WANG Er-qi1,XIE Xu-xing2(1.Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China,2.Fuzhou Jin'an Uranium Co.,Ltd.,Lean 344301,China) |
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| Abstract: | Through investigation about status of uranium mine ventilation system of shrinkage method,it showed that the mined-out areas is the main radon pollution source for multi-level shrinkage method excavating ventilation,not only enter-air pollution but also air leaking.As a result,the radon and radon daughter concentrations of underground air were higher than the national standard.Aimed at the existent problems,a study on the radon reduction ventilation technique of shrinkage method mine was carried out.A venti... |
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| Keywords: | shrinkage method ventilation radon reduction |
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