鲍店矿远距离动压灌浆系统研究

发布时间：2018-05-21 16:58

本文选题：远距离 + 动压灌浆　；参考：《西安科技大学》2013年硕士论文

【摘要】：灌浆技术是矿井主要的防灭火技术手段之一。随着矿井开采范围不断延伸，灌浆管路不断加长，造成管路阻力增大，管路出口压力小等问题变得日益突出。这类问题的解决一般是通过加压来实现提高出口压力。压力是防灭火灌浆工作中的一个重要参数，如果压力过大，则可能会出现灌浆管路损坏等情况，同时，管路压力监测主要是由人工测定的，不能提供实时的压力监测数据。这些因素导致远距离灌浆系统难以满足矿井安全性的要求。本文在分析鲍店煤矿灌浆系统的基础上，设计了由渣浆泵加压、PLC控制技术和组态监测软件形成的远距离动压灌浆系统。首先，按照系统的整体结构框架，设计原则，主要功能和系统控制，设计并实现了PLC控制渣浆泵的启停和管路中局部压力过大可能损坏管路的闭环超压保护系统；其次，分析了远距离动压灌浆系统的现场应用环境，利用ANSYS模拟软件对管道中的压力分布规律进行了数值模拟，数值模拟结果和现场实测数据基本吻合，掌握了管路中的压力分布情况；最后，通过现场应用效果分析，在输送距离为4500米的远距离灌浆工作中，浆液的输送压力增加了1MPa，出口压力由原先的1.5MPa增加至2.8MPa，表明本系统能够满足远距离灌浆的需求，能够实现远距离动压灌浆的智能化控制，，有效地解决了远距离灌浆和由此引起的局部压力分布不均匀而导致的压力过大损坏灌浆管路的问题。研究成果对矿井远距离灌浆防灭火有一定的应用价值。
[Abstract]:Grouting technology is one of the main means of preventing and extinguishing fire in mines. With the continuous extension of mine mining area and the continuous extension of grouting pipeline, the pipeline resistance increases and the outlet pressure of pipeline becomes more and more prominent. The solution of this kind of problem is to increase the outlet pressure by pressurizing. Pressure is an important parameter in fire prevention and fire grouting work. If the pressure is too high, the grouting pipeline may be damaged. At the same time, the pipeline pressure monitoring is mainly measured manually and can not provide real-time pressure monitoring data. These factors make the remote grouting system difficult to meet the requirements of mine safety. Based on the analysis of grouting system in Baodian Coal Mine, a long-distance dynamic pressure grouting system is designed based on PLC control technology of slag slurry pump and configuration monitoring software. Firstly, according to the whole structure frame, design principle, main function and system control of the system, the closed-loop overpressure protection system which is controlled by PLC to control the starting and stopping of slag slurry pump and the local pressure in the pipeline may damage the pipeline is designed and realized. The field application environment of the long-distance dynamic pressure grouting system is analyzed, and the pressure distribution in the pipeline is simulated by using ANSYS software. The numerical simulation results are in good agreement with the field measured data. Finally, through the field application effect analysis, in the transportation distance of 4500 meters long distance grouting work, The conveying pressure of slurry is increased by 1MPa, and the outlet pressure is increased from 1.5MPa to 2.8MPa, which indicates that the system can meet the requirement of long-distance grouting and realize the intelligent control of long-distance hydrodynamic grouting. The problem of long distance grouting and the local pressure distribution caused by it is effectively solved, which results in the excessive damage of grouting pipeline caused by the pressure. The research result has certain application value to the mine long-distance grouting fire prevention and extinguishing.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD75

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