Post-continuous casting slab cutting quality defect judgment and secondary processing method

Abstract

The invention provides a post-continuous casting slab cutting quality defect judgment and secondary processing method. The method includes the following steps that: (1) continuous casting slab cutting is completed, calculation is started up, and casting beginning and finishing time of continuous casting slabs is collected; (2) a continuous casting machine basic automation system acquires data and signals, and then, transmits the data and signals to a continuous casting machine process control system for analyzing the data and signals, and the quality of the continuous casting slabs is calculated; (3) secondary processing mode and continuous casting slab whereabouts setting is performed for defective continuous casting slabs, and the defective continuous casting slabs are subjected to secondary processing; (4) after the secondary processing of the defective continuous casting slabs is completed, an operator records the information of the defective continuous casting slabs and defective continuous casting secondary processing information and uploads the information to a steel-making production planning and control system; (5) the steel-making production planning and control system collects continuous casting actual information and transmits the information to a hot rolling production planning and control system; and (6) calculation is terminated. With the method adopted, deviations in casting length and caused by cutting loss can be well solved.

Description

Technical field: [0001] The invention relates to a quality defect judgment and secondary disposal method after the continuous casting slab is cut. Background technique: [0002] The commonly used continuous casting slab quality judgment model, or in the continuous casting production process, or after the continuous casting slab cutting is completed, start the continuous casting slab quality judgment model, according to the actual abnormal information collected during the continuous casting casting process , to calculate the quality of the continuous casting slab, but some signals from L1 have data fluctuations, and some signals from the on-site operation box have delays, which lead to deviations between the defects of the continuous casting slab calculated by the model and the actual ones, and affect the subsequent processes Relevant secondary disposal of the continuous casting slab; in addition, due to the wear of the continuous casting length measuring roller or the jump...

AI Technical Summary

Problems solved by technology

In the above-mentioned patents, the abnormal events in the continuous casting production are triggered by abnormal events, and the relevant equipment action signals are not considered. At the same time, the above-mentioned patents track the continuous casting abnormal events by segmenting the continuous casting slab. However, the actual situation Under the circumstances, if the continuous casting length measuring roller wears or the length measuring code jumps, the continuous casting slab belly idling, etc., there will be deviations in the casting length of the continuous casting production. In addition, the conventional continuous casting machine adopts flame cutting, How much there is a cutting loss, it will also affect the length of the continuous casting casting, resulting in abnormal events in the positioning deviation of the continuous casting slab

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