摘要:
现有矿井通风系统评价方法是从矿井通风系统全局视角出发，对其进行整体性的评价，所得出的评价结论是静态的、综合性的，无法精准定位出矿井中用风范围内的通风情况并发现其存在的问题，也不能实时反映当前时刻的通风质量状态。针对上述问题，建立了基于模糊综合评价法-层次分析法（FCE-AHP）的矿井通风质量动态评价模型，用以对煤矿的通风质量进行实时评价。首先根据矿井通风需求和作用将通风区域划分为进风区段、回风区段、采煤工作面、掘进工作面、硐室5个区域，根据每一种用风区域类型确定其对应的评价指标体系；然后根据评价指标体系获取对应测风点传感器实时监测到的数据，利用AHP确定各区域的评价指标权重，通过柯西分布隶属度函数计算实时监测数据所属评价级别的隶属度；最后应用FCE计算评级权重，通过置信度识别原则确定区域通风质量级别，完成各区域通风质量的动态评价。以东滩煤矿南翼回风巷为例，通过FCE-AHP模型对其通风质量进行了实时评价，评价结果显示其通风质量良好，与实际情况相符，证明了该模型的可靠性。FCE-AHP模型可依据实时监测到的数据对煤矿不同通风区域的通风质量进行实时评价，确定煤矿通风质量的安全级别，进而实现对矿井通风质量的综合评价，为改善煤矿通风系统质量提供依据。
Abstract:
The existing evaluation method of mine ventilation system is to evaluate it as a whole from the overall perspective of mine ventilation system. The evaluation conclusions are static and comprehensive, which cannot precisely locate the ventilation situation in the wind range of the mine and discover its problems, and can not reflect the current state of ventilation quality in real time. In order to solve the above problems, a dynamic evaluation model of mine ventilation quality based on fuzzy comprehensive evaluation method-analytic hierarchy process(FCE-AHP) is established to evaluate the ventilation quality of coal mines in real time. Firstly, according to the requirements and functions of mine ventilation, the ventilation area is divided into five areas, namely, air inlet section, air return section, coal working face, heading face and chamber. And the corresponding evaluation index system is determined according to each type of ventilation area. Secondly, according to the evaluation index system, the data monitored in real time by the sensors of corresponding wind measuring points are obtained, the evaluation index weights of each area are determined by AHP. And the membership degree of the evaluation level belonging to the real-time monitoring data is calculated by the Cauchy distribution membership function. Finally, the rating weights are calculated by applying FCE, and the regional ventilation quality level is determined by the confidence recognition principle so as to complete the dynamic evaluation of the ventilation quality of each region. Taking the south wing of return airway of Dongtan Coal Mine as an example, the FCE-AHP model is used to evaluate the ventilation quality of Dongtan Coal Mine in real time. The evaluation results show that the ventilation quality is good and is consistent with the actual situation, which proves the reliability of the model. The FCE-AHP model can evaluate the ventilation quality of different ventilation areas of coal mines in real time based on the data monitored in real time, determine the safety level of coal mine ventilation quality, then achieve a comprehensive evaluation of mine ventilation quality, and provide a basis for improving the quality of coal mine ventilation systems.
百度学术
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