论文部分内容阅读
尽管我国机械化采煤发展很快,但爆破落煤仍然占有很重要的位置,1983年长壁工作面机械化程度仅占41.62%。因此分析炮采工作面烟尘的紊流扩散,确定合理的风量计算方法,对于改善井下工作环境,提高通风效果具有重大的意义。 一、对于现有排烟风量计算方法的分析 炮采工作面排烟排尘风量计算方法目前流行和通用的观点有两种。 第一种方法是静态稀释。这种观点把采场的通风过程看成单纯的以新鲜空气冲淡和稀释的过程,计算风量相当于在固定空间中
Despite the rapid development of mechanized coal mining in our country, the blasting of coal falls still occupies a very important position. In 1983, the mechanization of longwall face only accounted for 41.62%. Therefore, it is of great significance to analyze the turbulence and spread of dust in blast-mining working face and to determine a reasonable method for calculating the amount of wind, which can improve the working environment in the underground and enhance the ventilation effect. First, the existing method for the calculation of exhaust air volume analysis Blasting face smoke exhaust dust volume calculation method currently popular and common point of view there are two. The first method is static dilution. This view of the stope ventilation process as a simple fresh air dilution and dilution process, the calculation of air volume equivalent to a fixed space