复合浆体喷涂新材料及其隔风特性  

A new spraying material of composite slurry and its property for air-isolation

作　　者：周福宝[1,2] 李金海[1] 刘应科[1] 杨绿刚[3] 白兰永 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221116 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008 [3]河北金牛能源股份有限公司葛泉煤矿,河北沙河054102

出　　处：《煤炭学报》2010年第7期1155-1159,共5页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(50604014);教育部新世纪优秀人才资助项目(NCET-08-0838);中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(09KF11)

摘　　要：针对传统喷涂隔风防灭火材料的缺点,如混凝土作业操作困难,材料运输量大,化学喷涂材料价格昂贵,难以大范围应用,以黏土和水泥为基料,配以添加剂和玻璃纤维,研制出了一种新型复合浆体材料,并利用压汞实验和电镜扫描考察了其隔风堵漏性能。研究结果表明,复合浆体材料结构致密,微裂隙普遍发育,粗大孔洞及裂隙不发育,渗透系数仅为1.181×10-10 mm/s,巷道喷涂后的平均百米漏风量为5.5 m3/min,隔风性能优越。Considering the shortcomings of the traditional spray material,such as its inconvenience for concrete’s operation and mass transport,staggering cost of chemical spraying rough material and limitation of being widely applied,a new composite slurry material containing clay,cement,fiber glass and some additives was developed,and its property for air-isolation was tested based on mercury intrusion experiment and scanning electron microscopy.Research results shows that the material is densely constructed;its micro-fissuring is generally developed gross and coarse fissuring including some pores is less developed;its permeability coefficient is just 1.181 × 10-10 mm/s,and the air leakage of tunnel sprayed with this material is 5.5 m3 / min per 100 meters.

关 键 词：复合浆体 隔风特性 煤炭自燃 沿空巷道 

分 类 号：TD752.2[矿业工程—矿井通风与安全]