Guizhou Huarui Dingxing Energy Co.Ltd. School of Energy and Safety Engineering,.Hunan University of Science and Technology

为防治煤矿井下煤炭自燃,在分析气动隔膜泵与水射流泵工作特性的基础上,提出了非电力组合泵站局部注浆防灭火技术,根据现场使用要求确定了局部注浆用泵的选型与组合方式,计算了组合泵站最大输浆距离,给出了组合泵站注浆系统配置与工艺流程,并建立了组合泵间最短连接管路长度的计算模型。研究结果表明:由气动隔膜泵与水射流泵构建的非电力组合泵站,仍可保持简单、轻便、安全的特点,可同时解决煤矿井下非电力局部注浆的自动制浆、连续注浆以及长距离输浆并保持出口压力等问题,在管径50 mm配置下最大输浆距离可达189 m,约为气动隔膜泵输浆距离的1.6倍,适合井下非电力长距离局部注浆防治煤炭自燃的区域。

in order to prevert cal spontaneous combustion in underground coal mine,pased on analysis of work characteristics of pneumatic diaphragm pump andwater et pump.the non-power combined pumping station forfre prevention and extinguising local grouting techmnology were put forward.Akccording to the requirementsconbinaton mode and type oftheloca goutig pumps were identifed. The maximun ransmission distance of combination pump was calculated,technical process andgrouin system conigu ration of combined pumping staton were given.The caculaton model of shorest length pipe for conecting combined pumps was establis hedThe reseach resuis showed non-pawercombined pumping station which was constructed by poneumatic diaphragm pump and water jet pump.could maintain the characterstics ofbriefness porabiltysafet Mfeanwhile,the non-power combined pumping station could solve difcut problems.suth as automatic and contiuous pulping lon.distance sury conveying.,maintaining outlet pressure The maximun ransmission distanceof sury conveying coud reach 189 m ofpipe diameter 50 m which was bout 1.6 times of neumatic dlaphragm pump.T he non-power long distancelocal grouting 'echmology was suitable to prevent coalspontaneous combustion area in underground coal mine.

国家自然科学基金资助项目(51274099；51474106)；