悬臂式斗轮堆取料机控制系统设计开发与应用

发布时间：2018-05-12 17:16

本文选题：斗轮堆取料机 + 变频技术　；参考：《安徽工业大学》2017年硕士论文

【摘要】：在现代的工业中,斗轮堆取料机是一种用于大宗散装物料连续装卸的高效设备,在码头、港口、发电厂、钢铁厂等散装物料(煤炭、矿石、焦炭、砂石)存储料场中被广泛应用。伴随着科学技术不断进步,对斗轮堆取料机控制系统的各项要求也愈加提高,不仅要满足控制的准确度和安全性,同时对斗轮堆取料机操作的反应速度、平稳性及可靠性提出更高要求。因此,开展本文的研究内容具有重要的工程价值和理论意义。本文以悬臂式斗轮堆取料机作为对象,首先介绍和分析了斗轮堆取料机的运行工艺及工作原理,研究了斗轮、行走、俯仰、悬臂皮带、回转、尾车等各个机构的驱动方案及控制方式。然后通过PLC控制技术和变频技术相结合的方式,来进行斗轮堆取料机控制系统的设计,使用SIEMENS S7-300 PLC结合SINAMICS G-120变频器为核心构建控制系统硬件平台,应用PLC主从双级控制技术,并在硬件平台的基础上给出控制系统软件设计方案。而整个控制系统的网络通讯方案,则通过Profibus-DP现场总线技术和EtherNet工业以太网技术来实现。最后使用SIMATIC MP-377触摸屏,来构建人机交互界面(HMI),实现人与机器的交流平台;同时设计了较为完整的检测及保护系统。将本文的控制方案运用在马鞍山钢铁公司悬臂式斗轮机改造项目之中,结合现场的情况,完成了控制系统的硬件平台构建和软件系统设计。构建的控制系统具有稳定可靠、使用方便、可适应恶劣工作环境等优点,通过变频器调速使斗轮堆取料机获得了更广的调速范围,实现了无极调速和等量取料,并减小电机启动时的冲击。使用STEP7软件对所设计的控制系统进行LAD程序编写、PLCSIM仿真,以及WINCC人机界面的组态,最后对如何提高控制效果进行了研究分析,达到了提高斗轮堆取料机的生产作业效率,实现了设备的高效、稳定运行的效果。
[Abstract]:In modern industry, bucket wheel stacker is an efficient equipment for the continuous loading and unloading of bulk materials. Bulk materials (coal, ore, coke, etc.) are loaded in wharves, ports, power plants, steel plants, etc. Sand) is widely used in storage yard. With the continuous progress of science and technology, the requirements for the control system of bucket wheel stacker are increasingly improved, not only to meet the accuracy and safety of the control, but also to respond to the operation speed of bucket wheel stacker. Stability and reliability put forward higher requirements. Therefore, the research content of this paper has important engineering value and theoretical significance. This paper takes the cantilever bucket wheel stacker as the object, firstly introduces and analyzes the operation technology and working principle of the bucket wheel stacker, and studies the bucket wheel, walking, pitching, cantilever belt, rotation, etc. The drive scheme and control mode of each mechanism such as rear car. Then, through the combination of PLC control technology and frequency conversion technology, the control system of bucket wheel stacker is designed. The hardware platform of the control system is constructed with SIEMENS S7-300 PLC and SINAMICS G-120 inverter as the core, and the PLC master-slave two-stage control technology is applied. On the basis of the hardware platform, the software design of the control system is given. The network communication scheme of the whole control system is realized by Profibus-DP fieldbus technology and EtherNet industrial Ethernet technology. Finally, the SIMATIC MP-377 touch screen is used to construct the man-machine interaction interface to realize the communication platform between human and machine, and a relatively complete detection and protection system is designed at the same time. The control scheme of this paper is applied to the renovation project of the cantilever bucket wheel machine in Ma'anshan Iron and Steel Company, and the hardware platform and the software system design of the control system are completed in combination with the situation in the field. The control system is stable and reliable, easy to use, and can adapt to the bad working environment. Through the speed regulation of frequency converter, the bucket wheel stacker can obtain a wider range of speed regulation, and realize the stepless speed regulation and the same amount of material. And reduce the impact when the motor starts. The STEP7 software is used to compile the LAD program of the designed control system and the configuration of the WINCC man-machine interface. At last, how to improve the control effect is studied and analyzed, and the production efficiency of the bucket wheel stacker is improved. The effect of high efficiency and stable operation of the equipment is realized.
【学位授予单位】：安徽工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH24;TP273

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