Circular blank continuous casting terminal electromagnetic stirring control system

Abstract

The invention relates to a circular blank continuous casting terminal electromagnetic stirring control system. The system comprises an industrial controller, a PLC, a frequency converter and an electromagnetic stirrer; the industrial controller and the PLC are communicated through a network; the data interaction is performed between the PLC and the frequency converter through a scene bus; and the frequency converter and the electromagnetic stirrer are connected through a control cable. As control parameters of the frequency converter for controlling the electromagnetic stirrer in the system are intelligently controlled, the high matching of the operation current curve of the electromagnetic stirrer and the ideal curve is realized, the problems of short effective time of electromagnetic stirring at terminal and influence on peak current are effectively solved, the higher effect on improvement of the internal quality of circular blanks is achieved, and the requirements on quality by a production process are satisfied.

Description

technical field [0001] The invention relates to the technical field of electromagnetic stirring for large-section round billet continuous casting in steelmaking, in particular to an electromagnetic stirring control system for round billet continuous casting end. Background technique [0002] In the steelmaking workshop, electromagnetic stirring is an important part of the internal quality control of steel billets. According to the different installation positions, it has different effects on the electromagnetic effect and quality improvement of steel billets. From the perspective of continuous casting technology, the purpose of electromagnetic stirring in the crystallizer is to remove subcutaneous inclusions and pores, and uniformly solidify the slab shell, which is beneficial to the floating of inclusions and the stability of casting speed; the purpose of electromagnetic stirring in the second cooling zone is to improve equiaxed crystal ratio and To improve segregation, the...

AI Technical Summary

Problems solved by technology

[0003] The present invention is aimed at the technical problems existing in the prior art, and provides an electromagnetic stirring control system at the end of continuous casting of round billets. By intelligently regulating the control parameters of the frequency converter used to control the electromagnetic stirrer in the electromagnetic stirring system at the end of continuous casting, In this way, the operating current curve of the electromagnetic stirrer can be highly matched with the ideal curve, effectively solving the problem of short effective time of electromagnetic stirring at the end and the influence of peak current, which has a great effect on improving the internal quality of the round billet, and meets the quality requirements of the production process. requirements

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