摘要
为了研究综放工作面采空区注二氧化碳对采空区遗煤自燃的惰化情况,通过建立综放采空区渗流场几何模型,采用数值模拟方法,研究了注二氧化碳不同压注位置、不同压注流量时对采空区的惰化情况。结果表明:选择压注口位置为距离工作面60 m处、压注流量为750 m^3/h时,注二氧化碳对采空区惰化效果最好,该应用成果对二氧化碳防治煤自燃有一定的参考意义。
In order to study the inerting goaf in fully mechanized caving face of injection of carbon dioxide on the spontaneous combustion of coal in goaf,goaf seepage field geometry model through the establishment of fully mechanized caving,numerical simulation method is used to study the inerting of goaf carbon dioxide injection pressure injection of different positions and different injection flow.The results show that when the location of carbon dioxide injection is selected from the location of the pressure drop from the working face 60m and the injection flow rate is 750 m 3/h,the effect of carbon dioxide injection on the goaf is the best,which is a reference for carbon dioxide prevention and control of coal spontaneous combustion.
作者
牛振磊
程根银
司俊鸿
李波
唐晶晶
周逸飞
NIU Zhen-lei;CHENG Gen-yin;SI Jun-hong;LI Bo;TANG Jin-jin;ZHOU Yi-fei(North China Institute of Science and Technology,Yanjiao,065201,China;Yaoqiao Coal Mine,Shanghai Datun Energy Co.,Ltd,Peixian,221600,China)
出处
《华北科技学院学报》
2018年第1期36-40,共5页
Journal of North China Institute of Science and Technology
基金
中央高校基本科研业务费资助(3142017039)
关键词
综放工作面
采空区
二氧化碳防火
数值模拟
fully mechanized working face
goaf
carbon dioxide fire prevention
numerical simulation
