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抽出式通风独头巷道内氡及氡子体浓度的分布及特性分析
Concentration distribution rules and characteristics of radon and its progeny in blind roadway with exhaust ventilation
- 核技术 2016年39卷第5期 文章编号：050202
- 作者机构：
1.南华大学 核科学技术学院 衡阳 421001;
2.南华大学 环境保护与安全工程学院 衡阳 421001;
3.南华大学 铀矿冶生物技术国防重点学科实验室 衡阳 421001
- 作者简介：
张宇轩,男,1988年出生,2013年毕业于北京理工大学珠海学院,现为硕士研究生,辐射防护专业
叶勇军,E-mail:yongjunye@163.com
- 基金信息：
DOI：10.11889/j.0253-3219.2016.hjs.39.050202
中图分类号： TL211收稿日期：2015-12-30，
录用日期：2016-04-09，
纸质出版日期：2016-01-25
- 稿件说明：
移动端阅览
张宇轩, 叶勇军, 肖德涛, 等. 抽出式通风独头巷道内氡及氡子体浓度的分布及特性分析[J]. 核技术, 2016,39(5):050202
Yuxuan ZHANG, Yongjun YE, Detao XIAO, et al. Concentration distribution rules and characteristics of radon and its progeny in blind roadway with exhaust ventilation[J]. Nuclear techniques, 2016, 39(5): 050202
张宇轩, 叶勇军, 肖德涛, 等. 抽出式通风独头巷道内氡及氡子体浓度的分布及特性分析[J]. 核技术, 2016,39(5):050202 DOI： 10.11889/j.0253-3219.2016.hjs.39.050202.
Yuxuan ZHANG, Yongjun YE, Detao XIAO, et al. Concentration distribution rules and characteristics of radon and its progeny in blind roadway with exhaust ventilation[J]. Nuclear techniques, 2016, 39(5): 050202 DOI： 10.11889/j.0253-3219.2016.hjs.39.050202.
摘要
铀矿井下的独头巷道是氡及其子体浓度分布很高的场所。为指导抽出式通风独头巷道的排氡和排氡子体通风设计
初步完善了独头巷道通风气流中氡浓度与氡子体α潜能浓度之间的简化数学关系
分析了通风阻力对独头巷道岩壁氡析出率的影响;分别得出了抽出式通风独头巷道风流中氡浓度与氡子体浓度分布的数学计算模型
利用该模型分别得到了排氡和排氡子体最小风量的计算公式;针对具体的独头巷道
研究了巷道内氡浓度及氡子体浓度的分布规律以及排氡和排氡子体最小风量的变化规律。研究结果表明
距离抽出式通风独头巷道入口越远
巷道内氡浓度及氡子体浓度越高
氡及氡子体的浓度均随通风量的增大而减小
随岩壁氡析出率而增大;排氡和排氡子体所需的最小风量均随岩壁氡析出率而增大
随巷道长度而增大。
Abstract
Background:
2
The blind roadway is one of the most important places where radon and its progeny’s concentration is high in uranium mine exploitation.
Purpose:
2
The aim is to guide the design of exhaustion of radon and its progeny in blind roadway.
Methods:
2
The simplified mathematical relationships were primarily improved between radon concentration and radon progeny alpha potential energy concentration in the wind in uranium mine
and the influence of ventilation resistance force on rock wall radon release rate was analyzed; the mathematical calculation models of distribution for the concentration of radon and radon progeny in the blind roadway with driving-force ventilation were obtained
respectively
and through the models the minimum wind volume formulas for exhausting radon and its progeny in blind roadway were obtained. According to some particular roadways
the influence of different ventilation volumes and exhalation rates of radon on rock wall on radon and its progeny concentration
the influence of variable physical parameters on the wind volume for exhausting radon and its progeny in the blind roadway were discussed
respectively.
Results & Conclusion:
2
The results show that
the further it is from the roadway inlet
the higher the concentration of the radon and its progeny in the blind roadway is. And the concentration of radon and its progeny decreases with the increment of the wind volume
while increases with the increment of exhalation rate of radon on rock wall; the minimum wind volume needed for exhausting radon and radon progeny in the blind roadway with driving-force ventilation increases with the increment of the rock wall radon release rates and the length of the blind roadway.
关键词
Keywords
references
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YE Yongjun , DING Dexin , WANG Liheng , . Calculation model of radon and its daughters concentration in blind roadway with forced ventilation and their distribution rule . Journal of Central South University(Science and Technology) , 2015 . 46 ( 5 ): 1799 - 1805 .
叶 勇军 , 丁 德馨 , 王 立恒 , . 压入式通风独头巷道内氡及其子体浓度的计算模型与其分布规律 . 中南大学学报(自然科学版) , 2015 . 46 ( 5 ): 1799 - 1805 .
YE Yongjun , WANG Liheng , DING Dexin , . Study on calculation models and distribution rules of the radon concentration and its progenies concentration in blind roadway with forced-exhaust ventilation . Nuclear Science and Engineering , 2014 . 34 ( 2 ): 219 - 227 .
叶 勇军 , 王 立恒 , 丁 德馨 , . 压抽混合式通风独头巷道内氡及氡子体浓度的计算模型及其分布规律研究 . 核科学与工程 , 2014 . 34 ( 2 ): 219 - 227 .
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张 哲 , 朱 民安 , 张 永祥 . 地下工程与人居环境氡防护技术 . 北京:原子能出版社 , 2010 . 14 - 15 .
Safety regulations for metal and nonmetal mines:GB16423-2006
金属非金属矿山安全规程:GB16423-2006
Technical regulations for radon exhaustion and ventilation in underground uranium mine:EJ/T359-2006
铀矿井排氡及通风技术规范:EJ/T359-2006
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