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通过分析材料知,划分煤矿瓦斯等级应从瓦斯的相对涌出量与绝对涌出量的数值关系来求得;判断煤矿不安全程度可以借助Matlab,Excel数学软件拟合出瓦斯浓度和煤尘爆炸浓度下限的曲线图和函数关系式,再与材料所给的数据中的煤尘浓度进行对比,用求概率的方式判断这种情况的不安全程度;确定煤矿的最佳通风量以及两个采煤工作面所必须的风量和部分通风机需要的风量通过材料所给出的约束条件来构建一个关于最佳通风量的最优化模型,根据这个模型即可进一步得到所求。
According to the analysis of materials, the classification of coal mine gas level should be obtained from the numerical relationship between the relative emission of gas and the absolute emission. To determine the degree of mine safety, the gas concentration and the concentration of coal dust explosion can be fitted by Matlab and Excel software Lower limit of the curve and the function of the relationship between the data given by the material and the concentration of dust in the dust compared with the probability of seeking ways to determine the extent of this unsafe; determine the best coal mine ventilation and two coal mining The amount of air required for the work surface and the amount of air required for the part of the fan build an optimization model for the optimum ventilation volume based on the constraints given by the material from which the desired air flow can be further obtained.