井下水仓清淤技术研究及关键设备控制

发布时间：2018-06-12 12:33

本文选题：井下水仓清淤 + 煤泥特性　；参考：《河北工程大学》2013年硕士论文

【摘要】：水、火、瓦斯、煤尘是煤矿主要的四大灾害。其中水患作为煤矿的主要灾害之一，对煤矿安全生产有着重大的影响。而对水仓及时有效的清理也是保证煤矿安全生产的重要因素。目前井下水仓的清淤方式有人工清挖法，挖装清淤法等，但清淤效果均不太理想。为了减少井下水仓清淤挖煤泥的时间，减轻工人劳动强度，提高水仓利用率；本课题采用一种新型的井下水仓清淤系统及新工艺对井下水仓进行清淤。本课题通过对煤泥的沉降特性以及颗粒特性分析，总结出煤泥沉降规律及颗粒分布规律，并为井下水仓的清淤工艺提供理论依据。本文将井下水仓清淤系统分成加压过滤过程，振动搅拌过程以及抽排过程三个过程并对其分别进行研究，确定了各过程中相关联的参数，使得井下清淤系统能够更高效的运行。根据上述三个过程的研究，确定了核心设备的选型依据，为井下水仓清淤系统的优化完善做了准备。主要确定了压滤机，渣浆泵，单螺杆泵等的主要的参数并提出了它们的选型依据，进一步完善了井下水仓清淤系统的设备选型体系。井下水仓清淤系统运用的是集中控制和PLC控制核心设备的方式对系统进行控制。对系统的核心设备压滤机进行了PLC控制设计，实现了压滤机的自动拉板卸料，全自动防爆电气控制。并对所有电气设备进行了防爆设计以满足煤矿安全生产的要求。通过实践，使用了本课题井下水仓清淤系统后，水仓的有效容积和有效使用时间明显提高了，减少了流入水仓煤泥颗粒，降低了对煤矿主排水系统的磨损，，对保证煤矿排水安全有明显效果；采用机械化设备清理水仓，大大降低了工人劳动强度；减轻了矿井运输压力。
[Abstract]:Water, fire, gas and coal dust are the four major disasters in coal mines. As one of the main disasters in coal mine, flood has great influence on coal mine safety. The timely and effective cleaning of the water warehouse is also an important factor to ensure the safety of coal mine production. At present, the silt cleaning methods of underground silo include manual dredging, digging and silt cleaning, but the effect of dredging is not ideal. In order to reduce the time of dredging and dredging coal slime, lighten the labor intensity of workers and improve the utilization ratio of water bunker, a new type of silt cleaning system and new technology are adopted in this paper. Based on the analysis of the settling characteristics and particle characteristics of coal slime, the paper summarizes the settling law and particle distribution law of coal slime, and provides the theoretical basis for the silt cleaning process of underground water bunker. In this paper, the silt cleaning system of underground water bunker is divided into three processes: pressure filtration process, vibration stirring process and drainage process. The parameters are determined in each process, so that the silt cleaning system can operate more efficiently. According to the research of the above three processes, the selection basis of the core equipment is determined, and the preparation for the optimization and improvement of the silt cleaning system of the underground water bunker is made. The main parameters of filter press, slurry pump and single screw pump are determined and their selection basis is put forward. The equipment selection system of silt cleaning system in underground water storage is further improved. The silt cleaning system of underground silo is controlled by centralized control and PLC control. The filter press of the core equipment of the system has been designed by PLC control. The automatic pulling plate unloading material and automatic explosion-proof electric control of filter press have been realized. All electrical equipments are designed to meet the requirements of coal mine safety production. Through practice, after using the silt cleaning system of underground water bunker, the effective volume and effective service time of the silo have been obviously increased, and the coal slime particles flowing into the silo have been reduced, and the wear and tear to the main drainage system of coal mine has been reduced. It has obvious effect on ensuring coal mine drainage safety, using mechanized equipment to clean up the silo, greatly reduces the labor intensity of workers, and lightens the pressure of mine transportation.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD745

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