基于PROFIBUS现场总线的活性炭自动混捏成型系统设计

发布时间：2018-01-30 16:29

本文关键词： 活性炭 PROFIBUS PLC PID MCGS　出处：《北方民族大学》2017年硕士论文　论文类型：学位论文

【摘要】：目前,柱状煤基活性炭应用于国民生活的各个领域,并逐年攀升。宁夏某活性炭制造企业生产工艺复杂,欲设计四条生产线但设备相对分散,并且工作环境相对恶劣,需设计一种布线简单、技术可靠、自动化水平高、应用方便的系统,包括硬件设备选择,软件设计等。本文通过对混捏工艺以及PROFIBUS总线的深入研究,设计一套基于PROFIBUS现场总线的活性炭自动混捏成型系统,包括对系统的硬件设备进行选型设计,电气原理图设计,软件编程以及组态设计等。该系统以西门子S7-300系列PLC作为一级主站,操作员站作为二级主站,以ET200M分布式I/O设备挂接在PROFIBUS-DP上作为从站,并通过MCGS组态软件设计上位机监控界面,PROFIBUS现场总线与下位机的通信成功搭建了一套自动混捏成型系统。针对生产工艺中的焦油温度以及搅拌锅温度的控制,通过STEP7编程实现PID调节,并进行模型的搭建,通过Z-N法分别进行参数确定以便现场调整;针对螺旋送料电机通过变频器内部PID对其进行闭环控制实现匀速运转;根据现场实际情况通过变频器控制造粒机,以达到提高活性炭生产效率以及产品质量的目的。在MCGS组态软件上开发上位机监控系统,分别设计了主监控、参数设置、温度调节、速度设置、实时数据历史数据查询、报警查询等功能界面,对生产工艺所需参数进行设置与实时监控,方便了工程人员进行实时监控、记录和管理。
[Abstract]:At present, all areas of columnar coal based activated carbon used in the national life, and increased year by year. A Ningxia activated carbon manufacturing complex production process, to design four production lines, but the equipment is relatively dispersed, and the relatively poor working environment, need to design a simple wiring, reliable technology, high automation, convenient application system, including hardware selection, software design and so on. Based on the mixing process and the in-depth study of PROFIBUS bus, design a set of activated carbon based on PROFIBUS fieldbus automatic kneading molding system, including the hardware equipment selection design, electrical principle diagram design, software programming and configuration design of the system. SIEMENS S7-300 series PLC as the master station, the operator station as the two master station, distributed to ET200M I/O devices mounted on PROFIBUS-DP as slave station, and through the MCGS configuration software The design of PC monitoring interface, PROFIBUS fieldbus communication and MCU has successfully built a set of automatic kneading molding system. According to the temperature in the production process of tar and stir the pot temperature control, STEP7 programming through PID regulation, and build the model, parameters to determine on-site adjustment respectively by Z-N method; for the spiral feeding motor to achieve closed-loop control of the uniform speed through the internal PID converter; according to the actual situation of the inverter control granulator, in order to improve the production efficiency and product quality of activated carbon. The purpose of development of computer monitoring and control system in the MCGS configuration software, designed the main monitoring, parameter setting, temperature regulation, speed the real-time data set, historical data query, alarm query interface, set and real-time monitoring parameters required for the production process, is convenient for the engineering Personnel are monitored, recorded and managed in real time.

【学位授予单位】：北方民族大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP273;TQ424.1

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