Intelligent fixed weight and fixed length on-line control system of continuous casting billet

Abstract

The invention relates to an intelligent fixed weight and fixed length on-line control system of a continuous casting billet. The intelligent fixed weight and fixed length on-line control system comprises an input module, a data collecting module, a data storage module, a communication module, a core calculating module, an output module, an executive module and a monitoring interface module. The real-time production process data of the continuous casting billet, the returning deviation of a cutting machine, the weighing of the continuous casting billet and other information is collected throughthe data collecting module, the data is stored through the data storage module, data calculating treatment is carried out by the core calculating module by adopting a multi-model continuous casting billet fixed weight control method, and the optimal fixed length set value of the continuous casting billet is output and handed down to a fixed length system for execution, so that the fixed weight precision of the continuous casting billet is improved. The communication module is used as a link of a control system to realize data interaction, and production management level MES system data communication, basic automation level PLC system data communication and the data collecting module can be realized. Production process visualization is realized through the monitoring interface module by using the mode of "number and chart", and various important information is reflected intuitively and clearly.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to an intelligent on-line control system for weight and length determination of continuous casting slabs. Background technique [0002] In the continuous casting process of iron and steel enterprises, most of the continuous casting machines in steel plants use fixed length (length of continuous casting slab) to determine the weight, that is, the continuous casting slab of the weight required for the next process of rolling steel is produced by the fixed length system. However, in the actual production process, due to the influence of mold wear, casting speed change, superheat change and molten steel composition change, the weight of continuous casting slabs with the same length is quite different, and the actual weight of continuous casting slabs is not required for steel rolling. weight. Overweight continuous casting slab will cause too much residual material aft...

AI Technical Summary

Problems solved by technology

However, this control mode can only compensate for the sizing deviation caused by equipment factors such as mold copper tube wear, and does not consider the influence of casting speed changes, superheat changes, and molten steel composition changes experienced by the continuous casting slab. Better accuracy can be obtained only when the speed, constant temperature and fluctuation of molten steel composition are small.

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