摘要
实测结果分析和理论分析表明,热负压影响下独头巷道抽出式通风工作面炮烟浓度按指数函数规律衰减。热负压增大,炮烟浓度衰减加快。用本文推导的风量计算公式计算,结果与实测有较好的一致性。本文的结论对无热负压影响的抽出式通风过程也适用。
Site measuring results and theoretical analysis indicate that the concentration of blasting fume at dead face with exhaust ventilation decresses in exponential function, and the higher heat negative pressure, the quicker decrease of blasting fume concentration. The calculated air rate with the formula given in this paper is in good accordance with the site measuring result. The conclusions of this paper are also adapted to the exhaust ventilation without the effect of heat negative pressmre.
