【作者】 姜海燕；

【导师】 张建中； 宋若峰；

【作者基本信息】 山东科技大学 ， 机械制造及其自动化， 2007， 硕士

【摘要】 本论文针对煤矿斜井运输时经常发生的矿车跑车事故，利用PLC技术、自动控制技术、传感器技术、钢丝绳无损检测技术实现了斜井运输的综合监控，有效地避免了斜井运输时发生跑车，造成重大事故。论文以西门子S7-200PLC为控制核心，由检测行人的红外线传感器、钢丝绳断丝检测传感器、提升钢丝绳受力传感器、矿车速度传感器及挡网到位传感器等组成。斜井常闭式防跑车安全装置采用常闭式档杠和拦网，使用380V防爆电机传动。系统实现了钢丝绳动态检测，行人与行车闭锁及报警，矿车掉道自锁及报警，跑车自锁及报警，超速自锁及报警，到挡开网等六大功能，解决了斜井提升中由于掉道、断绳、超速等原因引起串车跑车而引发重大的煤矿事故。论文针对斜井运输综合监控，给出了系统的具体实施方案和以PLC为核心的系统硬件方案以及关键的软件程序，并利用单片机与PLC的通讯，实现了监控数据的显示和报警。论文同时设计了系统组成的关键传感器——提升钢丝绳受力传感器，另外通过磁检测法检测钢丝绳受损情况，并给出了磁路结构设计方法，以及设计励磁器的有关计算参数。系统实现了斜井运输的综合监控，达到了多功能、多保障的性能，为斜井提升运输的综合监控提供了先进、可靠的工具。目前系统已成功应用于新泰市新泰煤矿和沈村煤矿，其运行可靠，取得了较好的安全效果。更多还原

【Abstract】 The thesis aims at car-running accident in the transportation of slope mine. It realizes integrated monitor on slope mine transportation using PLC technology, automation technology, and NDE (nondestructive testing) technology, avoids effectually car-running that does a lot of damage.The control core is SIEMENS S7-200PLC, and detecting man infrared testing, detecting steel-wire broken sensor, detecting steel-rope tension sensor, detecting pit car speed sensor and detecting backstop position sensor. Normally closed anti-car-running instrument is used net-block and stick-block, it is driven by 380V approved electric motor. This system realizes six main functions: dynamic detecting on steel-rope, interlock and alarm when man and tramcars go along, self-lock and alarm when tramcars break the rail, self-lock and alarm of car-running, self-lock and alarm of overspeed, raising the net-block when tramcars coming. It avoids serious mine accident because of car-running, steel-rope broken, and overspeed in slope mine transportation.The thesis offers the material scheme of system, the hardware project based on PLC, and the key software program, using communication of single-chip and PLC, the system realizes display and alarming of monitoring data. Secondly, The thesis designs the main sensor that detects the pulling force of steel-rope. Thirdly, the system detects destructive steel-rope by Magnetic Testing method, and offers the structural design of magnetizing exciter and the correlative calculation parameter.The system realizes integrated monitor and control on slope-mine transportation, and obtains multifunctional and multi-ensure performance, and offers advanced and reliable instrument for slope-mine transportation. At present, this system has been applied at XinTai city XinTai coalmine and ShenCun coalmine successfully, the operation is reliable, and the secure effect is preferable.更多还原