浅埋深矿井采空区外部大漏风均压防治技术

发布时间：2018-04-18 02:00

本文选题：均压通风 + 外部漏风　；参考：《西安科技大学学报》2015年05期

【摘要】：为准确计算采用均压防治外部漏风时调压风机的压力,研究了基于矿井风网解算的均压通风计算模型。通过对均压通风原理及其在矿井内、外部漏风防治中技术特点的分析,结合通风网络解算原理,建立了均压防治外部漏风的计算模型,其计算结果显示调压风机升压力取决于矿井通风阻力的分布。依据红柳林矿井浅埋开采形成的采空区外部漏风现场观测数据,评估了漏风对矿井通风系统稳定性的影响,并设计了调压风机与风窗联合的均压通风方案。该方案采用网络解算软件计算了15207采煤工作面采空区外部漏风分支风阻与进风段通风阻力,确定了调压风机升压值与风窗的控风参数,实施后取得了预期效果。现场的成功应用表明了此技术的正确性,对同类矿井具有借鉴意义。
[Abstract]:In order to accurately calculate the pressure of the regulating fan when the external air leakage is prevented by using the equal pressure, the calculation model of the average pressure ventilation based on the solution of the mine air network is studied.Based on the analysis of the principle of equalizing pressure ventilation and the technical characteristics of preventing and controlling air leakage inside and outside the mine, combined with the principle of solving ventilation network, the calculation model of the prevention and cure of external air leakage by equal pressure is established.The calculation results show that the pressure rise of the regulating fan depends on the distribution of mine ventilation resistance.Based on the field observation data of air leakage outside the goaf formed by shallow mining in Hongliulin mine, the influence of air leakage on the stability of mine ventilation system is evaluated, and a combined ventilation scheme of regulating pressure fan and air window is designed.The network software is used to calculate the external air leakage branch air resistance and air inlet ventilation resistance in the goaf of 15207 coal mining face, and the pressure rising value of the regulating fan and the air control parameters of the air window are determined, and the expected results are obtained after the implementation.The successful application in the field shows the correctness of this technique and has reference significance for similar mines.
【作者单位】：陕煤集团神木红柳林矿业有限公司;西安科技大学能源学院;教育部西部矿井开采与灾害防治重点实验室;
【基金】：国家自然科学基金青年基金项目(51204135)
【分类号】：TD728

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