摘要
为系统地介绍远距离供液技术研究成果,对国内外远距离供液发展现状进行了全面的总结和归纳。分析了工作面传统供液方案存在的不足,探讨了远距离供液可以解决的主要问题及其优势,介绍了超大流量液压动力技术、多泵站并联多级卸荷压力控制技术、乳化液远距离回液中继技术以及工作面液压系统失压自动保护技术等远距离供液中关键技术的研究和应用。最后,在动力系统、管路系统及系统布置3个方面对远距离供液的发展方向提出了展望和建议,提出了随着供液系统高频脉动有效控制技术、基于变频调速的多泵站流量连续压力控制技术、以及远距离供液压降控制等技术的发展,工作面供液系统由现在的“一面一站”向“多工作面集中供液”再向“地面泵站”过渡的可能。
In order to systematically introduce the research results of centralized emulsion supply technology, the development status of centralized emulsion supply technology in coal mining at home and abroad was comprehensively summarized. The shortcomings of the traditional way of emulsion supply in working face were analyzed, the main problems that can be solved by centralized emulsion supply in coal mining and its advantages were discussed. Research and application of the key technologies of super-large flow emulsion supply, pressure control based on parallel multistage unloading for multi pumping stations, long-distance emulsion return relay and automatic protection for pressure loss of hydraulic system were introduced. In the aspects of power system, pipeline system and system layout, the development direction of centralized emulsion supply in mining area was prospected and suggested. With the development of effective control technology of high frequency pulsation in emulsion supply system, continuous pressure control technology of multi pump station flow based on variable frequency speed regulation, and pressure loss control technology of long distance emulsion supply, it is possible to transfer the emulsion supply system of working face from “one working face with one pump station” to “centralized emulsion supply of multi working face” and then to “ground pumping station”.
作者
张宁波
郎瑞峰
王大龙
贾少毅
ZHANG Ning-bo;LANG Rui-feng;WANG Da-long;JIA Shao-yi(China Coal Huajin Group Co.,Ltd.,Yuncheng 043300,China;Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 101399,China;School of Mechanical Electronic and Information Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)
出处
《煤炭工程》
北大核心
2023年第1期71-75,共5页
Coal Engineering
关键词
远距离供液
多工作面集中供液
多泵站并联
失压自动保护
超大流量
remote emulsion supply
multi-working face centralized emulsion supply
parallel connection of multi pump station
automatic protection of decompression
super-large flow
