枣泉煤矿综放面自然发火防治研究

发布时间：2018-06-16 19:08

本文选题：“三带”模拟 + 氧浓度　；参考：《辽宁工程技术大学》2013年硕士论文

【摘要】：近些年来,综放面易自燃煤层在回采过程中发生火灾的次数明显增多,矿井火灾严重的影响了煤矿的正常生产。神宁煤业有限公司枣泉煤矿2煤属于易自燃煤层,具有自燃倾向性。准确测定采空区煤层自燃“三带”,给出工作面回采最小安全推进速度,掌握综放面煤层自然发火规律,对枣泉矿的正常生产具有重要的意义。论文采用理论分析和数值模拟以及现场测定相结合的方法,对枣泉煤矿12207综放面易自燃煤层安全回采技术做了一定的研究。分析了枣泉煤矿综放面易自燃煤层采空区遗煤自然发火的影响因素,归纳总结出了枣泉煤矿综放面自燃煤层采空区自然发火的原因。通过计算机模拟,确定采空区“三带”分布范围,并模拟了在优化风量下采空区“三带”的变化；现场通过束管检测,找出了采空区自燃“三带”,提出工作面安全回采的最小推进速度,并把测定结果与计算机模拟进行了比较,得出了模拟结果和测定结果基本是一致的。最后给出了枣泉煤矿易自燃煤层安全回采防治技术措施。
[Abstract]:In recent years, the frequency of spontaneous combustion coal seam fire in the mining process of fully mechanized caving face has increased obviously, and the mine fire has seriously affected the normal production of coal mine. Zaoquan Coal Mine, Shenning Coal Industry Co., Ltd., belongs to spontaneous combustion coal seam and has the tendency of spontaneous combustion. It is of great significance to determine accurately the "three zones" of spontaneous combustion of coal seam in goaf, to give the minimum safe advancing speed of mining face, and to master the law of spontaneous combustion in coal seam of fully mechanized caving face, which is of great significance to the normal production of Zaoquan Mine. By using the method of theoretical analysis, numerical simulation and field measurement, the safe mining technology of spontaneous combustion coal seam on the 12207 fully mechanized caving face of Zaoquan Coal Mine is studied in this paper. This paper analyzes the factors influencing the spontaneous combustion of coal in the goaf of spontaneous combustion coal seam in the fully mechanized caving face of Zaoquan Coal Mine, and sums up the reasons for the spontaneous combustion in the gob area of the fully mechanized caving face of Zaoquan Coal Mine. Through computer simulation, the distribution range of "three zones" in goaf is determined, and the variation of "three zones" in goaf under optimized air flow is simulated, and the "three zones" of spontaneous combustion in goaf are found through field beam tube detection. The minimum advance speed of safe mining face is put forward, and the result of measurement is compared with that of computer simulation. The result of simulation is basically consistent with that of measurement. Finally, the technical measures of safe mining prevention and treatment of spontaneous combustion coal seam in Zaoquan Coal Mine are given.
【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】：2013
【分类号】：TD752.2

【参考文献】