工业涂料配料控制系统设计与研究

发布时间：2018-05-15 08:18

本文选题：涂料 + 质量流量计　；参考：《兰州理工大学》2017年硕士论文

【摘要】：涂料产品是为国民经济各个行业提供配套保护和装饰的表面功能性材料。在国家提出《中国制造2025》的背景下,要求现代涂料制造行业也应该具有灵活性、敏捷性和智能性。在市场经济的驱动下要求涂料生产企业具有品种层次化、功能多样化、批次丰富化、生产过程柔性化,因此提高涂料企业的工业生产线自动化水平显得非常重要。本文针对某涂料企业丙烯酸涂料自动化制备项目进行了生产工艺分析,学习了丙烯酸涂料生产过程中的主要要素和所要求的控制系统。在分析整体项目目的的基础上确定涂料制备控制系统需要完成以下几个方面的工作:涂料生产整体方案设计、自动化控制系统设备设计、控制系统软件设计、人机组态设计、基于模糊控制的系统优化设计和运行调试。在此基础上改进分析控制算法,提高涂料各原料成分的质量配比精度,提高产品质量。该涂料配料系统在设备设计上采用隔膜泵和变频空压机来输送流体原料;采用质量流量计直接测量单色漆的质量;通过电动调节阀和PLC以及模糊控制算法来调节电动调节阀阀门开度,以控制原料质量配比,达到优化配料过程的目的。该系统的控制结构是触摸屏+PLC的形式。其中人机交互组态监控系统采用威纶通触摸屏,控制核心是西门子S7-200 SMART系列PLC,并采用STEP7 SMART编程软件进行配料控制程序的编写设计,完成整体控制逻辑流程的编制。经过设计与研究,系统以工业定制涂料中相对生产量大的丙烯酸类涂料为典型代表,开发相对应的涂料配方设计方案、生产工艺多样化制造系统,解决了涂料生产过程中原料配比精度低下的问题,提高企业整体生产效率和竞争力,对国内涂料行业向智能制造方向发展具有重大意义。
[Abstract]:Coating products are to provide supporting protection and decoration for the various industries of the national economy surface functional materials. Under the background of "made in China 2025" put forward by our country, modern coating industry should also have flexibility, agility and intelligence. Driven by the market economy, coating enterprises are required to have variety hierarchy, diversified functions, rich batch, flexible production process, so it is very important to improve the automation level of industrial production line of paint enterprises. In this paper, the main elements and control system in the production process of acrylic coatings are studied by analyzing the production process of acrylic coatings for an automatic preparation project of acrylic coatings in a coating enterprise. On the basis of analyzing the purpose of the whole project, it is determined that the paint preparation control system needs to complete the following work: paint production overall scheme design, automatic control system equipment design, control system software design, man-machine configuration design, System optimization design and operation debugging based on fuzzy control. On this basis, the analysis and control algorithm is improved to improve the quality ratio of each ingredient of paint and the quality of products. The coating blending system adopts diaphragm pump and frequency conversion air compressor to transport the fluid raw materials in the equipment design, and uses mass Flowmeter to measure the quality of monochromatic paint directly. The valve opening of electric control valve is regulated by electric control valve, PLC and fuzzy control algorithm, so as to control the quality ratio of raw material and achieve the purpose of optimizing the batching process. The control structure of the system is the form of touch screen PLC. The man-machine interactive configuration monitoring system adopts Wirunton touch screen, the control core is Siemens S7-200 SMART series PLC, and the programming software of STEP7 SMART is used to write and design the batching control program to complete the whole control logic flow. Through design and research, the system takes acrylic coatings with large relative production capacity in industrial custom coatings as the typical representative, develops the corresponding paint formulation design scheme, the production process diversification manufacture system, It solves the problem of low precision of raw material ratio in the process of coating production, improves the overall production efficiency and competitiveness of enterprises, and is of great significance to the development of domestic paint industry towards the direction of intelligent manufacturing.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ630.5;TP273

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