Method for continuously monitoring appearance of continuous casting sheet billet online

Abstract

The invention belongs to the field of instruments and meters, relating to a method for continuously monitoring appearance of a continuous casting sheet billet online. The method is to continuously monitor appearance of a casting blank, and comprises the following steps: assembling a high-precision distance meter respectively on two sides and the upper surface of a roll table of an air cooling section of a continuous caster; measuring distance from the casting blank and a distance meter; calculating the position and the shape of the casting blank through professional software; determining the number of cambers and wedges generated by the casting blank; drawing a three-dimensional graph for the appearance of the casting blank; and sending the result to a continuous casting master computer and a hot-rolling master computer so as to ensure that an operator can understand the number of wedges and cambers in time. The method designs a system of detection and software calculation to provide reliable indication for production control, thereby effectively avoiding the wedges in thickness direction and the cambers in length direction of the sheet billet possibly occurring in production process, and avoiding equipment accidents and unqualified products caused by the wedges and the cambers.

Description

technical field [0001] The invention belongs to the field of instruments and meters, and relates to a method for continuously monitoring the appearance shape of continuous casting thin slabs online. Background technique [0002] During the thin slab continuous casting process, due to the failure of equipment functions such as different pressing forces at both ends of the pinch roller or uneven cooling, the thin slab is often wedge-shaped in the thickness direction and sickle-shaped in the length direction. The wedge-shaped or sickle-shaped thin slabs are easy to deviate when they enter the tunnel heating furnace for heating. The amount of camber and camber should be determined and adjusted in time to adjust the rolling specifications and rolling load. It will collide with the side guide plate and cause equipment failure. In severe cases, it will cause shutdown to stack steel and affect production. [0003] At present, in order to prevent this problem, billets are usually de...

AI Technical Summary

Problems solved by technology

The wedge-shaped or sickle-shaped thin slabs are easy to deviate when they enter the tunnel heating furnace for heating. Timely determination and adjustment of the rolling specifications and rolling load will cause equipment failure due to collision with the side guide plate. In serious cases, it will cause shutdown to stack steel and affect production.

[0003] At present, in order to prevent this problem, billets are usually detected during the continuous casting-rolling process of thin slabs. However, the billets are picked up manually, and the operation is only based on visual observation. There is no data support, and there is no evaluation significance for the casting machine, let alone The protection of the heating furnace and the adjustment guidance of the subsequent hot rolling process are not covered, so time is often delayed, resulting in a series of problems such as heat loss of the slab, reduction of metal yield, and interference with the process operation of the heating furnace.

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