自动化工作面液压支架电液控制系统隔爆兼本安型集控计算机的开发

发布时间：2018-06-15 04:12

本文选题：自动化工作面 + 电液控制系统　；参考：《太原理工大学》2014年硕士论文

【摘要】：本文在对煤矿综采自动化工作面液压支架电液控制系统分析研究的基础上对隔爆兼本安型集控计算机进行了深入研究,研究内容是国际科技合作与交流专项项目“无人值守工作面液压支架电液控制系统的研制”(项目编号：0S2013ZR0493)及山西省重大专项项目“全自动国产无人值守综采工作面技术装备研发”(项目编号：20111101024)的重要组成部分。当前煤炭高效集约化安全开采对综采工作面液压支架控制自动化程度的需求日益提高,工作面液压支架电液控制系统的远程自动控制已成为工作面自动化的关键技术之一。隔爆兼本安型集控计算机是液压支架电液控制系统实现自动化的主要装置,与端头控制器、架间控制器以及地面监控中心配合,共同实现液压支架的实时监测、自动控制、集中控制、就地控制、控制器程序在线升级等功能,最终实现综采工作面的自动化。近年来国外电液控制技术发展迅速,并在实际生产中取得了越来越广泛的应用。但我国液压支架电液控制系统集控计算机基本依赖进口,供货周期长、价格昂贵且维修困难,这种局面大大制约着我国煤矿工业自动化的发展。因此,研究具有自主知识产权的隔爆兼本安型集控计算机具有十分重要的意义。本文通过深入研究自动化工作面液压支架电液控制系统的控制策略,确定了电液控制系统集中控制方案,设计了隔爆兼本安型集控计算机硬件并开发了集控系统软件,分别通过了实验室和地面运行试验,并投入工业运行,主要研究内容如下：通过查阅大量相关文献,以及对目前综采工作面电液控制系统的应用情况进行现场调研,确定了液压支架电液控制系统的功能需求和技术指标,设计了液压支架中央控制系统的控制方案,并在此基础上提出了隔爆兼本安型集控计算机的功能要求。确定了集控计算机硬件电路的总体结构,完成了控制模块的选型及本安型隔离通讯电路的设计。为了适应井下的恶劣环境,对通讯电路采取了抗干扰措施,并设计了隔爆外壳。采用基于PowerBuilder的嵌入式SQL开发了集控程序,主要包括TCP/IP通讯子程序、RS-485通信子程序、软件在线升级等,可实现工作面运行状态的实时监测、液压支架电液控制系统的集中控制以及数据库的管理功能。在实验室搭建了液压支架电液控制系统试验台,并对集控计算机各个功能进行了实验室调试。组装成产品后,在晋煤集团进行了地面试运行和井下工业运行。调试运行结果表明：本隔爆兼本安型集控计算机结构设计科学合理,能够快速、准确地获取液压支架状态信号和对液压支架进行实时有效地控制,实现了液压支架端头控制器和架间控制器的在线程序升级,为综采工作面的自动化打下了基础。
[Abstract]:Based on the analysis and research of electro-hydraulic control system of hydraulic support in fully mechanized coal mining face, this paper makes a deep research on the flameproof and intrinsically safe centralized control computer. The research content is "the development of electro-hydraulic control system of hydraulic support in unattended working face" (item No.: 0S2013ZR0493) and the important special project of Shanxi Province, "Full-automatic unattended fully mechanized mining workers", which is a special project of international scientific and technological cooperation and exchange. Research and Development of facet Technical equipment "(Project No.: 20111101024) is an important component." At present, the demand for automation of hydraulic support in fully mechanized coal mining face is increasing day by day. The remote automatic control of electro-hydraulic control system of hydraulic support in coal face has become one of the key technologies of working face automation. The flameproof and intrinsically safe centralized control computer is the main device for realizing the automation of the electro-hydraulic control system of the hydraulic support. With the cooperation of the terminal controller, the interframe controller and the ground monitoring center, the real-time monitoring and automatic control of the hydraulic support are realized together. Centralized control, local control, controller program online upgrade and other functions, the final automation of fully mechanized mining face. In recent years, electrohydraulic control technology has developed rapidly in foreign countries, and has been more and more widely used in practical production. However, the centralized control computer of hydraulic support electrohydraulic control system in China basically depends on import, long supply period, high price and difficult maintenance, which greatly restricts the development of coal mine industry automation in our country. Therefore, it is of great significance to study the flameproof and intrinsically safe centralized computer with independent intellectual property rights. By studying the control strategy of electro-hydraulic control system of hydraulic support in automatic working face, this paper determines the centralized control scheme of electro-hydraulic control system, designs the hardware of flameproof and intrinsically safe centralized control computer, and develops the software of centralized control system. The main research contents are as follows: by consulting a large number of relevant documents and investigating the application of electro-hydraulic control system in fully mechanized mining face at present, The functional requirements and technical specifications of electro-hydraulic control system of hydraulic support are determined. The control scheme of central control system of hydraulic support is designed, and the functional requirements of flameproof and intrinsically safe centralized control computer are put forward. The overall structure of the hardware circuit of the centralized control computer is determined, and the selection of the control module and the design of the intrinsically safe isolated communication circuit are completed. In order to adapt to the bad environment of underground, anti-interference measures are taken to the communication circuit, and the flameproof shell is designed. The centralized control program is developed with embedded SQL based on PowerBuilder, which mainly includes RS-485 communication subprogram of TCP / IP communication subprogram, on-line upgrade of software, and so on, which can realize real-time monitoring of working face running state. Centralized control of hydraulic support electro-hydraulic control system and management function of database. The test bench of hydraulic support electro-hydraulic control system was built in the laboratory, and the functions of centralized control computer were debugged in the laboratory. After assembling the product, the ground trial operation and underground industrial operation were carried out in Jin Coal Group. The results of debugging and running show that the structure of the flameproof and intrinsically safe centralized control computer is scientific and reasonable, and the state signal of the hydraulic support can be obtained quickly and accurately, and the real-time and effective control of the hydraulic support can be carried out. The on-line program upgrade of the terminal controller and interframe controller of hydraulic support is realized, which lays the foundation for automation of fully mechanized mining face.
【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD355.4;TD67

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