囊袋式注浆封孔单向阀剪切销的实验分析  

Research on Shear Pin Experiment of Check Valve of Bag-type Grouting Plug Method

作　　者：孙玉宁[1] 张波[1] 陈君龙[1] 

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000

出　　处：《煤矿机械》2010年第3期62-63,共2页Coal Mine Machinery

摘　　要：囊袋式注浆封孔是煤层瓦斯抽采封孔方法之一,针对囊袋式注浆封孔技术,设计了定力单向阀。该阀要求在注浆过程中,浆液达到一定压力后,阀门开启,但是阀芯不能脱离阀体。通过实验选定了合适的剪切销并且达到了预定的要求。The bag-type grouting plug method is one of methane drainage plug methods in coal seams. An Constant-force check valve was designed for the bag-type grouting plug method. It requires that the valve opens When the grout pressure exceeds the scheduled pres sure in the grouting process,but the spool cannot leave the valve. Through the experiments, select appropriate shear pins and they achieve the scheduled requirements.

关 键 词：囊袋式注浆封孔 单向阀 剪切销 剪应力 

分 类 号：TD712[矿业工程—矿井通风与安全]