宽幅横切线控制系统研究

发布时间：2018-08-10 07:18

【摘要】：本课题来源于国内某中型钢铁集团热轧厂,介绍了该热轧厂的德国SMS-DEMAG的热轧横切线的基本情况。随着终端客户对该生产线产品的认可,针对其横切线生产能力无法满足实际生产需求,生产效率有待提高得问题,解决这一难题,不仅可以提高产品的生产能力,也能提高产品在市场上的竞争力。该热轧厂希望在原有生产线的基础上开发出具有自主知识产权的新的横切线。本课题将对热轧横切线的自动化进行深入的研究。横切线的目标是将钢卷加工成一定尺寸的钢板,故钢卷开卷工艺的研究是必不可少而且十分重要的。开卷机在生产过程中的稳定性是评价机组稳定的重要因素。针对宽幅横切线的生产特点给出了张力的计算方法、补偿原理以及卷径的计算方法。定尺精度是横切机组产品质量评价的重要因素。针对横切机组中飞剪的运动规律进行分析,建立数学模型,以提高飞剪的剪切精度为目的,分别设计电流环,速度环,位置环的调节器。利用模糊控制对传统PID控制的控制参数进行修正,优化了飞剪的位置控制模型,使其具有良好地动态性和稳定性。根据横切线的工艺特点对全线进行了跟踪区域划分,并由此划分跟踪层次。确定了全线跟踪功能的总体方案、横切线跟踪设计思路、数据流,采用二进制与十六进制物料状态描述方法对物料跟踪过程管理。同时,在上述理论基础上设计出横切线全线跟踪系统,并给出程序流程。希望能从根本上解决提高产品的产能的问题。
[Abstract]:This subject comes from the hot rolling mill of a medium iron and steel group in China, and introduces the basic situation of the hot rolling crosscutting line of German SMS-DEMAG in this hot rolling mill. With the end customer's approval of the production line, the production capacity of the crosscutting line can not meet the actual production demand, and the production efficiency needs to be improved. To solve this problem, not only can the production capacity of the product be improved, It can also improve the competitiveness of products in the market. The hot-rolling mill hopes to develop new cross-cutting lines with independent intellectual property rights on the basis of existing production lines. This topic will carry on the thorough research to the hot rolling cross-cutting line automation. The goal of crosscutting line is to make steel coil into steel plate of certain size, so the research of uncoiling technology is necessary and very important. The stability of uncoiler in production process is an important factor to evaluate the stability of the unit. The calculation method of tension, compensation principle and calculation method of coil diameter are given according to the production characteristics of wide transverse tangent line. The precision of sizing is an important factor in product quality evaluation of crosscutting units. In order to improve the shear accuracy, the current loop, velocity loop and position loop regulator are designed for the purpose of analyzing the motion law of flying shear in crosscutting unit and establishing the mathematical model. The control parameters of traditional PID control are modified by fuzzy control, and the position control model of flying shear is optimized, which makes it more dynamic and stable. According to the technological characteristics of the crosscutting line, the tracking area of the whole line is divided, and the tracking level is divided accordingly. The overall scheme of the whole line tracking function, the design idea of the crosscutting line tracking, the data flow, and the management of the material tracking process using binary and hexadecimal material state description methods are determined. At the same time, based on the above theory, the whole line tracking system of crosscutting line is designed, and the program flow is given. Hope to fundamentally solve the problem of improving the production capacity of products.
【学位授予单位】：辽宁科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TG334.9

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