汾源矿综放面采空区三带的确定及防灭火实践  

Determination of three zones in goaf of fully mechanized top coal caving face in Fenyuan mine and practice of fire prevention and extinguishing

作　　者：王伟明 WANG Weiming(Fenyuan Coal Mining Company,Huozhou Coal Electricity Group,Huozhou035100 China)

机构地区：[1]霍州煤电集团汾源煤业公司,山西霍州035100

出　　处：《煤矿现代化》2022年第1期43-45,共3页Coal Mine Modernization

摘　　要：为实现汾源矿综放工作面的安全回采,开展了采空区采空区三带及防灭火技术的研究。在工作面两巷采用WRN系列热电偶和UT系列测温仪对采空区氧气浓度和温度进行监测,结果表明,进风巷和回风巷的自燃带范围分别为32.5~51.9 m、7.8~20.6 m。通过黄泥灌浆和采空区注氮等措施,工作面采空区CO气体浓度保持在10×10^(-6)左右,温度低于29℃,采空区无自然发火现象。In order to realize the safe mining of fully mechanized top coal caving face in Fenyuan mine,the research on three zones of goaf and fire prevention and extinguishing technology was carried out.WRN series thermocouples and UT series thermometers were used to monitor the oxygen concentration and temperature in the goaf.The results show that the spontaneous combustion zone ranges from 32.5 m to 51.9 m in the inlet and 7.8 m to 20.6 m in the return air roadway.Through the measures of yellow mud grouting and nitrogen injection in the goaf,the CO gas concentration in the goaf of the working face is maintained at about 10×10^(-6),and the temperature is lower than 29℃.There is no spontaneous combustion in the goaf.

关 键 词：综放工作面 自然发火 黄泥灌浆 束管监测 

分 类 号：TD75[矿业工程—矿井通风与安全]