【摘要】 根据铀矿山留矿法和充填法采场通风降氡试验资料,本文分析总结了采场通风降氡规律。根据氡和氡子体衰变规律的研究,提出了用双曲线回归方程表示氡子体α潜能积累方程。由此方程导出了入风流未受污染和受污染两种情况下的排氡子体风量计算公式,并在矿山生产条件下进行了验证试验,按公式算出的风量能够满足辐射安全要求,比较经济合理。更多还原

【Abstract】 In accordance with testing data of removing radon and its daughters by ventilation from shrinkage and filling stopes of uranium mines, a law of removing radon by ventilation from the stopes is analyzed and summed. According to the decay law of radon and its daughters, an accumulation equation of potential alpha energy from radon daughters is presented with hyperbolic regression equation. The calculating formulae of ventilation flow are derived from the accumulation equation for eliminating radon daughters in inlet flow with or without contamination. It has been proved that the amount of ventilation air calcuated could meet the requirements of radiation safety rationally and economically更多还原