煤矿通风系统安全可靠性评价研究

发布时间：2018-03-26 07:17

本文选题：矿井通风系统　切入点：评价指标　出处：《内蒙古科技大学》2014年硕士论文

【摘要】：矿井通风是矿井安全生产的命脉。为了认真贯彻落实“安全第一，预防为主”的方针，促进煤矿安全生产和管理，提高矿井安全保障能力及抗灾能力，必须保证通风系统保持最佳运行状态，近些年，一些国有重点煤矿随着开采深度的加大，自然灾害的威胁更加的突出，有不少煤矿的瓦斯涌出量增大，原来是低瓦斯矿井的变为高瓦斯矿井或者有突出危险的矿井。矿井通风系统是整个煤炭企业生产大系统的命脉，它担负着向各个用风地点输送高质高量的新鲜空气。虽为矿井开采系统服务，但是事关整个企业生产大系统的安全生产，纵观历年来的煤矿事故，尤其是重特大事故，常常是瓦斯积聚造成瓦斯局部爆炸引起的，这些都与矿井的通风系统有着直接或间接的关系,因此应该对煤矿的通风系统的安全可靠性进行评价。本文首先根据矿井通风系统安全可靠性评价体系建立的原则，从主要矿井通风动力及设施可靠性、通风系统环境可靠性、矿井安全监测系统可靠性、矿井通风防灾救灾系统可靠性4个方面建立了矿井通风系统安全可靠性评价体系，明确各评价指标的意义及计算方法，进行指标分级。介绍隶属函数确定的原则、隶属函数的构造方法及确定类型，详细的给出每个评价指标的隶属函数。运用插值法完善评价体系，利用插值法绘制出指标与其隶属度之间的函数曲线，当评价指标为一具体数值时，则其将对应一个相对精确的隶属度值。介绍了权重确定的基本理论及层次分析法，并提出改进的层次分析法，利用改进的层次分析法计算求出矿井通风系统安全可靠性评价体系准则层的权重及其各二级因素的权重，并给出评价结果的综合处理。通过对模糊综合评价方法在矿井通风系统安全可靠性评价中的应用的研究，说明模糊综合评价方法应用于矿井通风系统安全可靠性评价中的可行性，阐述模糊综合评价的一些基础知识，并介绍多层次的模糊综合评价以及模糊合成算子的选择情况，，提出利用模糊综合评判评价一些定性评价的因素，用统计学方法确定模糊综合评价的隶属度，引入二级模糊综合评判评价矿井通风系统的安全可靠性的构想。
[Abstract]:Mine ventilation is the lifeblood of mine safety production. In order to implement the principle of "safety first and prevention first", to promote the safety production and management of coal mine, and to improve the ability of mine safety guarantee and disaster resistance, In recent years, with the increase of mining depth, the threat of natural disasters is more prominent in some state-owned key coal mines, and the amount of gas emission increases in many coal mines. The mine ventilation system is the lifeblood of the large production system of the whole coal enterprise. It is responsible for conveying high quality and high quantity of fresh air to various wind-using sites. Although it serves the mine mining system, it has a bearing on the safety production of the large production system of the whole enterprise. Throughout the years, coal mine accidents, especially serious and serious accidents, It is often caused by local gas explosion caused by gas accumulation, which is directly or indirectly related to mine ventilation system. Therefore, the safety and reliability of coal mine ventilation system should be evaluated. According to the principles of safety and reliability evaluation system of mine ventilation system, this paper firstly discusses the reliability of ventilation power and facilities, the environmental reliability of ventilation system, and the reliability of mine safety monitoring system. In this paper, the safety and reliability evaluation system of mine ventilation system is established in four aspects: the reliability of mine ventilation disaster prevention and disaster relief system, the significance and calculation method of each evaluation index, the classification of indexes, and the principle of determining membership function. The construction method and type of membership function are given in detail. The evaluation system is perfected by interpolation method, and the function curve between index and membership degree is drawn by interpolation method. When the evaluation index is a specific value, it will correspond to a relatively accurate membership value. The basic theory of weight determination and the analytic hierarchy process (AHP) are introduced, and an improved AHP is proposed. By using the improved analytic hierarchy process (AHP), the weight of the criterion layer of the safety and reliability evaluation system of mine ventilation system and the weight of the secondary factors are calculated. Through the research on the application of fuzzy comprehensive evaluation method in the safety and reliability evaluation of mine ventilation system, the comprehensive treatment of the evaluation results is given. The feasibility of applying the fuzzy comprehensive evaluation method to the safety and reliability evaluation of mine ventilation system is explained. Some basic knowledge of fuzzy comprehensive evaluation is expounded, and the multi-level fuzzy comprehensive evaluation and the selection of fuzzy composition operator are introduced. This paper puts forward the conception of evaluating the safety and reliability of mine ventilation system by using fuzzy comprehensive evaluation to evaluate some qualitative evaluation factors, determining the membership degree of fuzzy comprehensive evaluation by statistical method, and introducing the two-stage fuzzy comprehensive evaluation method to evaluate the safety and reliability of mine ventilation system.
【学位授予单位】：内蒙古科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD724

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