| 云锡矿区井下通风排氡 |
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| 引用本文： | 黄怀清,陈宝寿.云锡矿区井下通风排氡[J].铀矿冶,1987(3). |
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| 作者姓名： | 黄怀清 陈宝寿 |
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| 作者单位： | 云南锡业公司劳动防护研究所
(黄怀清)，云南锡业公司劳动防护研究所(陈宝寿) |
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| 摘 要： | 云南锡矿井下存在着氡,而氡是产生矿工肺癌的主要因素之一,因此通风排氡成为我矿一项迫切需要解决的严重问题。云锡井下作业场所氡污染的主要来源是:采空区积累的高浓度氡的漏入;自然下行风把上部采空区及矿岩裂隙内的高浓度氡的带入;氡从矿岩介质中的渗出。因而形成高浓度氡对井下矿工的危害。针对上述原因,选用了压入式通风,使井巷内气压高于地表气压,以减少氡的漏入、渗出和改变下行风的方向,取得了降氡的良好的效果。此外,在防氡密闭工艺方面,对井巷壁喷涂混凝土防氡复盖层和密闭墙采用水泥砂浆粉面,效果良好。
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| 关 键 词： | 辐射防护 井下通风 排氡 |
UNDERGROUND VENTILATION OF YUNNAN TIN CORPORATION MINES FOR RADON REMOVAL |
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| Huang Huaiqing Chen Baoshou.UNDERGROUND VENTILATION OF YUNNAN TIN CORPORATION MINES FOR RADON REMOVAL[J].Uranium Mining and Metallurgy,1987(3). |
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| Authors: | Huang Huaiqing Chen Baoshou |
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| Abstract: | In this paper the main radon sources are described: the leakage of concentrated radon from the mine goaves, the radon brought by the natural wind from the goaves and cracks of ores, the leakage of radon from the ores and rocks. According to these conditions the ventilation under pressure and other measurements are used in Yunnan Tin Corp. mines and the good results have been obtained for reduction of radon |
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| Keywords: | Radiation protection Underground ventilation Radon removal |
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