摘要
从低能耗、高效率等方面入手,研制适合巷道摆放的高压小射流掏槽设备及配套装置:液压控制系统,包括液压马达、高压油管和防爆电机;远程监控系统,包括防爆计算机和防爆摄像仪;掏槽系统,包括高压枪嘴、传动装置、高压水管、高压水泵。通过实验室加压试验和行走实验,完善了装置的密封性和耐压性。现场试验数据表明:一定压力和流量的高压小射流具备破煤掏槽能力。掏槽深度随着射流压力的增加而增大,而一定压力下,增大流量更有利射流提高扩孔效果,可使更多孔底残留的煤块排出孔外,提高了掏槽速度。
In this paper, in view of the low power and high efficiency, the high-pressure small jet equipment and facilities suitable for putting in roadway were developed, including the hydraulic control system consisted of hydromotor, high-pressure oil tube and premissible motor, the remote monitoring system consisted of explosion-proof computer and camera apparatus, the punching system consisted of high-pressure water jet, gearing, high-pressure tube and water pump. Meanwhile, the tightness and pressure resistance of device were improved by the pressure and running test in laboratory. The field test results show that the high-pressure jet with a certain pressure and flow has the ability to break the coal body, and the punching gets deeply as the jet pressure increases. Moreover, under a certain pressure, in- creasing the flow is more favorable to improve the reaming effect, which makes more residual coal vent outside the borehole and improves the punching speed.
出处
《采矿与安全工程学报》
EI
北大核心
2012年第5期740-745,共6页
Journal of Mining & Safety Engineering
基金
河北省科技支撑计划项目(11276904D)
关键词
高压小射流
掏槽
防突装置
监控系统
high-pressure small jet
punching
device for outburt prevention
monitoring system
作者简介
张嘉勇（1977-），男，河南省方城县人，博士，从事矿山安全方面的研究。E-mail：zjy815@163.com.Tel：13933328265
