兴阜煤矿通风网络分析与优化

发布时间：2018-05-19 09:15

本文选题：系统优化 + MIVENA　；参考：《辽宁工程技术大学》2014年硕士论文

【摘要】：矿井通风系统计算与模拟是对矿井通风系统进行理论分析,找出问题、做出评价,进而提出解决办法和改进措施；对提高矿井的生产安全状况有非常重要的意义。MIVENA是一款可以让通风工程师和研究者在矿井的动态生产过程中对矿井的风流、气候、温度和湿度状况进行解算和分析的矿井通风模拟系统[1]。在通风系统中的风流状态模拟、风量调节预测、井下气候环境预测等方面都具有很高的实用价值。MIVENA系统在通风安全理论基础之上,建立了模拟预测模型,进而以计算机为工具立足解决实际的矿井通风问题。本文以隶属于阜新矿业集团的兴阜煤矿为实例,以现场实测数据为基础,运用MIVENA系统进行精确模拟,解算出原孙家湾系统通风阻力占总阻力的21%,并解算出兴阜煤矿通风系统中的大风阻分支,主要位于新副井、-400总排风道、-340大巷及二、三皮带道等巷道,在通风网络解算分析的基础上对兴阜煤矿部分巷道实施示踪气体实验,建立了示踪气体浓度扩散数学模型并化简求解,通过对实验结果与模拟计算结果对比分析,诊断出兴阜煤矿的重点漏风区域。针对以上三方面问题,分别从降阻调节、封堵漏风及简化孙家湾生产系统三方面入手,对兴阜煤矿通风系统进行优化改造,通过MIVENA系统对优化后的通风系统解算,兴阜煤矿通风系统较优化前总风量增加约10%,风压降低约25%,增加了该矿井的经济效益。
[Abstract]:The calculation and simulation of mine ventilation system is to carry on the theoretical analysis to mine ventilation system, find out the problem, make the evaluation, and then put forward the solution and the improvement measure; It is very important to improve mine production safety. Mivena is a kind of ventilation engineers and researchers in the mine dynamic production process of the mine air flow, climate, Mine ventilation simulation system for calculation and analysis of temperature and humidity conditions [1]. Mivena system has high practical value in air flow state simulation, air flow regulation prediction, downhole climate and environment prediction and so on. On the basis of ventilation safety theory, the simulation and prediction model is established. Then the computer as a tool to solve the actual mine ventilation problem. Taking Xingfu Coal Mine, which belongs to Fuxin Mining Group, as an example, based on the field measured data, the MIVENA system is used to carry out accurate simulation. The ventilation resistance of the original Sunjiawan system accounted for 21% of the total resistance, and the branch of the large wind resistance in the ventilation system of Xingfu Coal Mine was calculated. The branch of the ventilation system is mainly located in the new auxiliary shaft, Yi-400 main exhaust air passage, and the second and third belt roadways, etc. Based on the calculation and analysis of ventilation network, a tracer gas experiment was carried out on some roadways of Xingfu Coal Mine, and a mathematical model of tracer gas concentration diffusion was established and simplified. The results of experiment and simulation were compared and analyzed. The key air leakage area of Xingfu coal mine is diagnosed. In view of the above three problems, the ventilation system of Xingfu Coal Mine was optimized and reformed from the aspects of reducing resistance regulation, sealing air leakage and simplifying the production system of Sunjiawan. The optimized ventilation system was calculated by MIVENA system. The ventilation system of Xingfu coal mine increases about 10 percent of the total air volume and reduces the air pressure by about 25 percent, which increases the economic benefit of the mine.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD724

【参考文献】